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Artykuły w czasopismach na temat „Contributions in space and time”

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Data publikacji: 26 lipca 2024

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1

Dépeault, Alexandra, El-Mehdi Meftah, and C. Elaine Chapman. "Tactile Speed Scaling: Contributions of Time and Space." Journal of Neurophysiology 99, no. 3 (2008): 1422–34. http://dx.doi.org/10.1152/jn.01209.2007.

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A major challenge for the brain is to extract precise information about the attributes of tactile stimuli from signals that co-vary with multiple parameters, e.g., speed and texture in the case of scanning movements. We determined the ability of humans to estimate the tangential speed of surfaces moved under the stationary fingertip and the extent to which the physical characteristics of the surfaces modify speed perception. Scanning speed ranged from 33 to 110 mm/s (duration of motion constant). Subjects could scale tactile scanning speed, but surface structure was essential because the subje

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Steib, Imola, Sándor Nagy, and János Polonyi. "Renormalization in Minkowski space–time." International Journal of Modern Physics A 36, no. 05 (2021): 2150031. http://dx.doi.org/10.1142/s0217751x21500317.

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The multiplicative and the functional renormalization group methods are applied for the four-dimensional scalar theory in Minkowski space–time. It is argued that the appropriate choice of the subtraction point is more important in Minkowski than in Euclidean space–time. The parameters of the cutoff theory, defined by a subtraction point in the quasi-particle domain, are complex due to the mass-shell contributions and the renormalization group flow becomes much more involved than its Euclidean counterpart.

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Metaxas, Dimitrios. "Instanton interaction in de Sitter space–time." International Journal of Modern Physics A 33, no. 33 (2018): 1850200. http://dx.doi.org/10.1142/s0217751x18502007.

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Because of the presence of a cosmological horizon, the dilute instanton gas approximation used for the derivation of the Coleman–De Luccia tunneling rate in de Sitter space–time receives additional contributions due to the finite instanton separation. Here, I calculate the first corrections to the vacuum decay rate that arise from this effect and depend on the parameters of the theory and the cosmological constant of the background space–time.

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4

Kirshenbaum, Nurit, Kylie Davidson, Jesse Harden, et al. "Traces of Time through Space." Proceedings of the ACM on Human-Computer Interaction 5, ISS (2021): 1–20. http://dx.doi.org/10.1145/3488552.

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Technology have long been a partner of workplace meeting facilitation. The recent outbreak of COVID-19 and the cautionary measures to reduce its spread have made it more prevalent than ever before in the form of online-meetings. In this paper, we recount our experiences during weekly meetings in three modalities: using SAGE2 - a collaborative sharing software designed for large displays - for co-located meetings, using a conventional projector for co-located meetings, and using the Zoom video-conferencing tool for distributed meetings. We view these meetings through the lens of effective meeti

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5

Polt, Richard. "Evoking the Momentous Site: Time-Space in the Contributions to Philosophy." Heidegger Circle Proceedings 37 (2003): 16–35. http://dx.doi.org/10.5840/heideggercircle2003372.

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Fabbri, Marco, Nicola Cellini, Monica Martoni, Lorenzo Tonetti, and Vincenzo Natale. "The Mechanisms of Space-Time Association: Comparing Motor and Perceptual Contributions in Time Reproduction." Cognitive Science 37, no. 7 (2013): 1228–50. http://dx.doi.org/10.1111/cogs.12038.

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7

Milliken, Bruce, Juan Lupiáñez, Martha Roberts, and Biljana Stevanovski. "Orienting in space and time: Joint contributions to exogenous spatial cuing effects." Psychonomic Bulletin & Review 10, no. 4 (2003): 877–83. http://dx.doi.org/10.3758/bf03196547.

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De Bièvre, Dirk, Patricia Garcia-Duran, Leif Johan Eliasson, and Oriol Costa. "Editorial: Politicization of EU Trade Policy Across Time and Space." Politics and Governance 8, no. 1 (2020): 239–42. http://dx.doi.org/10.17645/pag.v8i1.3055.

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This editorial provides an introduction to the thematic issue “Politicization of EU Trade Policy Across Time and Space.” The academic editors place the issue in the context of the current literature, introduce the contributions, and discuss how the articles, individually and jointly, add to the state of the art.

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9

POULIS, F. P., and J. M. SALIM. "WEYL GEOMETRY AS CHARACTERIZATION OF SPACE-TIME." International Journal of Modern Physics: Conference Series 03 (January 2011): 87–97. http://dx.doi.org/10.1142/s2010194511001176.

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Motivated by an axiomatic approach to characterize space-time it is investigated a reformulation of Einstein's gravity where the pseudo-riemannian geometry is substituted by a Weyl one. It is presented the main properties of the Weyl geometry and it is shown that it gives extra contributions to the trajectories of test particles, serving as one more motivation to study general relativity in Weyl geometry. It is introduced its variational formalism and it is established the coupling with other physical fields in such a way that the theory acquires a gauge symmetry for the geometrical fields. It

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10

FODA, OMAR. "MOMENTUM-SUBTRACTION RENORMALIZATION TECHNIQUES IN CURVED SPACE-TIME." International Journal of Modern Physics A 02, no. 05 (1987): 1549–65. http://dx.doi.org/10.1142/s0217751x87000818.

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Momentum-subtraction techniques, specifically BPHZ and Zimmermann’s Normal Product algorithm, are introduced as useful tools in the study of quantum field theories in the presence of background fields. In a model of a self-interacting massive scalar field, conformally coupled to a general asymptotically-flat curved space-time with a trivial topology, momentum-subtractions are shown to respect invariance under general coordinate transformations. As an illustration, general expressions for the trace anomalies are derived, and checked by explicit evaluation of the purely gravitational contributio

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11

Vial, Jean-Claude. "Space solar missions." Proceedings of the International Astronomical Union 5, S264 (2009): 459–68. http://dx.doi.org/10.1017/s1743921309993127.

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AbstractIn the frame of Symposium 264 which concerns Solar and Stellar Variability we address the space solar missions devoted to the various aspects of solar activity. We describe them in three time categories: missions ready for launch, missions which will operate in the 2012-2015 time frame and ambitious missions to be launched after 2015. We focus on the contributions of these missions according to the following criteria: Understanding mechanisms of activity, Improving detection and characterisation, Working out some prediction. Major activity contributors and manifestations are addressed:

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12

McCammon, Catherine, Hélène Bureau, James H. Cleaves, et al. "Deep Earth carbon reactions through time and space." American Mineralogist 105, no. 1 (2020): 22–27. http://dx.doi.org/10.2138/am-2020-6888ccby.

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Abstract Reactions involving carbon in the deep Earth have limited manifestations on Earth's surface, yet they have played a critical role in the evolution of our planet. The metal-silicate partitioning reaction promoted carbon capture during Earth's accretion and may have sequestered substantial carbon in Earth's core. The freezing reaction involving iron-carbon liquid could have contributed to the growth of Earth's inner core and the geodynamo. The redox melting/freezing reaction largely controls the movement of carbon in the modern mantle, and reactions between carbonates and silicates in t

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13

Koutsopoulos, Kostis C., and Yannis K. Kotsanis. "Space without Time and Time without Space in Education." Journal of Education, Society and Behavioural Science 36, no. 12 (2023): 34–47. http://dx.doi.org/10.9734/jesbs/2023/v36i121286.

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Aims: The objectives of the article are three-fold: first, to show that space and time are interrelated when teaching and learning is considered, creating the need to examine space and time in an integrated and inter-dimensional framework; second, to propose an integrated approach to the concept of space-time as a useful teaching and learning issue, allowing us to unmask the true time-space consideration in education; and third, to argue for the relevance of analyzing the concept of space-time (S-T) as a paramount issue in the research on teaching and learning. Study Design: Due to the ongoing

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14

Li, Huao, Tianwei Ni, Siddharth Agrawal, Dana Hughes, and Katia Sycara. "Team Synchronization and Individual Contributions in Coop-Space Fortress." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 64, no. 1 (2020): 82–86. http://dx.doi.org/10.1177/1071181320641023.

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This work studied human teamwork with a concentration on the influence of team synchronization and in- dividual differences on performance. Human participants were paired to complete collaborative tasks in a simulated game environment, in which they were assigned roles with corresponding responsibilities. Cross- correlation analysis was employed to quantify the degree of team synchronization and time-lag between two teammates’ collective actions. Results showed that team performance is determined by factors at both the individual and team levels. We found interaction effects between team synch

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15

Frehse, Fraya. "Time and the production of space in sociology." Sociologia & Antropologia 11, no. 2 (2021): 389–414. http://dx.doi.org/10.1590/2238-38752021v1122.

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Abstract What does the category “time” disclose in conceptual terms about the spatialization of social phenomena, the so-called production of space? By considering that since the 1950s sociology has embraced various theoretical frameworks for tackling the sociospatial process at hand, the paper answers this question in four analytic steps. Based on the ascertainment that (Section 1) these approaches address the temporalities of the respective research objects by means of definite spatialities, one peculiar history of sociology comes to the forefront. This history comprises (Section 2) four ori

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16

Smorkalov, I. A. "Soil Respiration Variability: Contributions of Space and Time Estimated Using the Random Forest Algorithm." Russian Journal of Ecology 53, no. 4 (2022): 295–307. http://dx.doi.org/10.1134/s1067413622040051.

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17

Yefremov, A. P. "Gravitational contributions to pioneer space probe decelerations and the time-delay-doppler “Relativistic Confusion”." Gravitation and Cosmology 15, no. 2 (2009): 121–28. http://dx.doi.org/10.1134/s0202289309020030.

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18

Klapka, Pavel, Kajsa Ellegård, and Bohumil Frantál. "What about Time-Geography in the post-Covid-19 era?" Moravian Geographical Reports 28, no. 4 (2020): 238–47. http://dx.doi.org/10.2478/mgr-2020-0017.

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Abstract In this year, 2020, the Covid-19 pandemic has imposed new challenges for most human activities. Time-geography is a theoretical approach with great potential for analysing the consequences of the new disease and other disturbances, and this article aims at identifying possible developments of interest for the approach in the post-Covid era. The article addresses challenges that emerge for time-geographic research from the perspective of massive changes in human behaviour, regarding time-space activity patterns, caused by the globally diffusing disease. The implications of the pandemic

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19

DINEYKHAN, M., and Kh NAMSRAI. "QUANTUM SPACE-TIME AND ESTIMATIONS ON THE VALUE OF THE FUNDAMENTAL LENGTH." Modern Physics Letters A 01, no. 03 (1986): 183–89. http://dx.doi.org/10.1142/s0217732386000269.

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Generalizing the idea of quantum space-time to the quantum mechanical case we re-analyze low energy processes and consider the nuclear radii, the Lamb shift and hyperfine structure of the hydrogen atom. Calculations of the contributions to these measurements due to quantum space-time structure allow us to obtain estimates on the value of the fundamental length L. Among them, hyperfine structure gives the most stringent bound, L≤10−19 cm.

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20

CARRER, J. A. M., and W. J. MANSUR. "TIME-DOMAIN BEM ANALYSIS FOR THE 2D SCALAR WAVE EQUATION: INITIAL CONDITIONS CONTRIBUTIONS TO SPACE AND TIME DERIVATIVES." International Journal for Numerical Methods in Engineering 39, no. 13 (1996): 2169–88. http://dx.doi.org/10.1002/(sici)1097-0207(19960715)39:13<2169::aid-nme949>3.0.co;2-1.

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21

Zwick, Lorenz, Pedro R. Capelo, Elisa Bortolas, Verónica Vázquez-Aceves, Lucio Mayer, and Pau Amaro-Seoane. "Improved gravitational radiation time-scales II: Spin–orbit contributions and environmental perturbations." Monthly Notices of the Royal Astronomical Society 506, no. 1 (2021): 1007–18. http://dx.doi.org/10.1093/mnras/stab1818.

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ABSTRACT Peters’ formula is an analytical estimate of the time-scale of gravitational wave (GW)-induced coalescence of binary systems. It is used in countless applications, where the convenience of a simple formula outweighs the need for precision. However, many promising sources of the Laser Interferometer Space Antenna (LISA), such as supermassive black hole binaries and extreme mass-ratio inspirals (EMRIs), are expected to enter the LISA band with highly eccentric (e ≳ 0.9) and highly relativistic orbits. These are exactly the two limits in which Peters’ estimate performs the worst. In this

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22

CAPRASSE, H., J. DEMARET, K. GATERMANN, and H. MELENK. "POWER-LAW TYPE SOLUTIONS OF FOURTH-ORDER GRAVITY FOR MULTIDIMENSIONAL BIANCHI I UNIVERSES." International Journal of Modern Physics C 02, no. 02 (1991): 601–11. http://dx.doi.org/10.1142/s0129183191000901.

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This paper is devoted to the application of computer algebra to the study of solutions of the field equations derived from a non-linear Lagrangian, as suggested by recently proposed unified theories. More precisely, we restrict ourselves to the most general quadratic Lagrangian, i.e. containing quadratic contributions in the different curvature tensors exclusively. The corresponding field equations are then fourth-order in the metric tensor components. The cosmological models studied are the simplest ones in the class of spatially homogeneous but anisotropic models, i.e. Bianchi I models. For

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23

Rogers, D. J., and B. G. Williams. "Monitoring trypanosomiasis in space and time." Parasitology 106, S1 (1993): S77—S92. http://dx.doi.org/10.1017/s0031182000086133.

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SUMMARYThe paper examines the possible contributions to be made by Geographic Information Systems (GIS) to studies on human and animal trypanosomiasis in Africa. The epidemiological characteristics of trypanosomiasis are reviewed in the light of the formula for the basic reproductive rate or number of vector-borne diseases. The paper then describes how important biological characteristics of the vectors of trypanosomiasis in West Africa may be monitored using data from the NOAA series of meteorological satellites. This will lead to an understanding of the spatial distribution of both vectors a

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24

Zeldin, Oliver B., Markus Gerstel, and Elspeth F. Garman. "RADDOSE-3D: time- and space-resolved modelling of dose in macromolecular crystallography." Journal of Applied Crystallography 46, no. 4 (2013): 1225–30. http://dx.doi.org/10.1107/s0021889813011461.

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RADDOSE-3D allows the macroscopic modelling of an X-ray diffraction experiment for the purpose of better predicting radiation-damage progression. The distribution of dose within the crystal volume is calculated for a number of iterations in small angular steps across one or more data collection wedges, providing a time-resolved picture of the dose state of the crystal. The code is highly modular so that future contributions from the community can be easily integrated into it, in particular to incorporate online methods for determining the shape of macromolecular crystals and better protocols f

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25

Kulikov, I. K., and P. I. Pronin. "Finite temperature contributions to the renormalized energy-momentum tensor for an arbitrary curved space-time." Czechoslovak Journal of Physics 38, no. 2 (1988): 121–28. http://dx.doi.org/10.1007/bf01596487.

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Paik, A. Naomi, Jason Ruiz, and Rebecca M. Schreiber. "Sanctuary’s Radical Networks." Radical History Review 2019, no. 135 (2019): 1–13. http://dx.doi.org/10.1215/01636545-7607797.

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Abstract This editors’ introduction examines the genealogies of sanctuary as a space—and movement-based oppositional practice, one that contests the sovereign power of the nation-state and the structural roots of multiple, intersecting oppressions. Like each contribution to this special issue, the introduction challenges readers to reconsider the meanings and possibilities of sanctuary movements across time and place. It raises contexts and themes that are investigated in the issue’s contributions on the struggles of migrant communities in a context of increasingly militarized borders, Indigen

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27

Schill, Stephan W., Christian J. Tams, and Rainer Hofmann. "Oceans and Space: New Frontiers in Investment Protection?" Journal of World Investment & Trade 19, no. 5-6 (2018): 765–74. http://dx.doi.org/10.1163/22119000-12340119.

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Abstract This article provides background and introduces into the overarching themes of the contributions to the Special Issue dealing with investment protection in areas beyond territorial jurisdiction at sea and in outer space. It explains that fast-paced commercialization, evolving technological advances, and the inevitable need for regulatory intervention make the oceans and space into an increasingly important topic in international investment law. At the same time, investment lawyers, as well as experts in the law of the sea and space law, have largely ignored the legal issues foreign in

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28

Camacho, Abel, and Alfredo Macías. "Space–time torsion contribution to quantum interference phases." Physics Letters B 617, no. 1-2 (2005): 118–23. http://dx.doi.org/10.1016/j.physletb.2005.04.065.

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Brock, L. M. "Stoneley Wave Generation in Joined Materials With and Without Thermal Relaxation Due to Thermal Mismatch." Journal of Applied Mechanics 74, no. 5 (2007): 1019–25. http://dx.doi.org/10.1115/1.2723826.

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Two perfectly bonded, thermoelastic half-spaces differ only in their thermal parameters. Their governing equations include as special cases the Fourier heat conduction model and models with either one or two thermal relaxation times. An exact solution in transform space for the problem of line loads applied to the interface is obtained. Even though the elastic properties of the half-spaces are identical, a Stoneley function arises, and conditions for the existence of roots are more restrictive than for the isothermal case of two elastically dissimilar half-spaces. Moreover, roots may be either

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30

Silva Ramos, Daniele. "FULL-TIME EDUCATION." Revista Gênero e Interdisciplinaridade 4, no. 05 (2023): 368–86. http://dx.doi.org/10.51249/gei.v4i05.1618.

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Full-Time Comprehensive Education is an educational process aimed at the development of the student in its entirety, in its cognitive, political-social, ethical-cultural or socio-emotional aspects. This study adopts a qualitative, descriptive approach that uses theoretical contributions to investigate the challenges in the effectiveness of this extension of the student journey, taking as an essential point not only the focus on extending time, but rather a differentiated school organization, with a curriculum more diverse that allows immersion in studies and a variety of development opportunit

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31

LaRose, Christina Najla. "Counter Fictions and Imaginary Topographies: Auto/Biographical Methodologies and the Construction of Group Knowledge in Evelyn Shakir’s Bint Arab: Arab and Arab American Women in the United States." HAWWA 12, no. 2-3 (2014): 237–67. http://dx.doi.org/10.1163/15692086-12341265.

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In this contribution, I identify two of Evelyn Shakir’s methodological contributions inBint Arab: Arab and Arab American Women in the United States: counter fictions and imaginary topographies. First, I demonstrate how Shakir’s counter fictions complicate Nancy Hartsock’s (1997) argument that group knowledge is locatable in time, space and particular cultures. Second, I explore how Shakir’s imaginary topographies which are depicted through an autobiographical narrative voice—an intergenerational interlocutor—document movements between multiple voices and various actual and imagined locations.

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Pollock, M. D. "The Superstring Propagator and the Signature of Space-Time." Modern Physics Letters A 12, no. 14 (1997): 987–98. http://dx.doi.org/10.1142/s021773239700100x.

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The Faddeev (Newton–Wigner) propagator K for the heterotic superstring theory is derived from the Wheeler–DeWitt equation for the wave function of the Universe Ψ, obtained in the four-dimensional (mini-superspace) Friedmann space-time ds2=dt2-a2(t)dx2, after reduction from the ten-action. The effect of higher-derivative terms ℛ2 is to break the local invariance under time reparametrization to a global symmetry t→λt, and consequently there are no ghost or gauge-fixing contributions, a functional integral over the (constant) Lagrange multiplier λ being sufficient to enforce the Hamiltonian const

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Genthon, Christophe. "Space–time Antarctic surface mass-balance variability from climate models." Annals of Glaciology 39 (2004): 271–75. http://dx.doi.org/10.3189/172756404781814294.

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AbstractThe interannual to interdecadal variability and space–time statistics (including radius of decorrelation) of the Antarctic surface mass balance (SMB) are evaluated from climate models and meteorological analyses. At model resolution scales (>100 km), the interannual relative standard deviation of precipitation ranges from ∼5% (remotest interior) to ∼40% and possibly more. Time variability is spatially coherent at distances of ∼500km on average, less than 300 km in the interior near ridges, but in excess of 700 km in some regions. As far as spatial distributions are concerned, intera

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Escors, David, and Grazyna Kochan. "Covariant Space-Time Line Elements in the Friedmann–Lemaitre–Robertson–Walker Geometry." Axioms 11, no. 7 (2022): 310. http://dx.doi.org/10.3390/axioms11070310.

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Most quantum gravity theories quantize space-time on the order of Planck length (ℓp ). Some of these theories, such as loop quantum gravity (LQG), predict that this discreetness could be manifested through Lorentz invariance violations (LIV) over travelling particles at astronomical length distances. However, reports on LIV are controversial, and space discreetness could still be compatible with Lorentz invariance. Here, it is tested whether space quantization on the order of Planck length could still be compatible with Lorentz invariance through the application of a covariant geometric uncert

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LEE, JUNGJAI, and YEONG DEOK HAN. "COMPOSITE OPERATORS AND TOPOLOGICAL CONTRIBUTIONS IN GAUGE THEORY." Modern Physics Letters A 16, no. 11 (2001): 679–84. http://dx.doi.org/10.1142/s0217732301003899.

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In D-dimensional gauge theory with a kinetic term based on p-form tensor gauge field, we introduce a gauge-invariant operator associated with the composite form from an electric (p - 1)-brane and a magnetic (q - 1)-brane in D = p + q + 1 space–time dimensions. By evaluating the partition function of this operator, we show that the expectation value of this operator gives rise to the topological contributions identical to those in gauge theory with a topological Chern–Simons BF term.

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Yan, Mu-Lin. "One Electron Atom in Special Relativity with de Sitter Space-Time Symmetry (II): — Higher Order Contributions." Communications in Theoretical Physics 62, no. 2 (2014): 189–95. http://dx.doi.org/10.1088/0253-6102/62/2/04.

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Sun, Min-Yu, Mariangela Chisari, Lawrence N. Eisenman, Charles F. Zorumski, and Steven J. Mennerick. "Contributions of space-clamp errors to apparent time-dependent loss of Mg2+ block induced by NMDA." Journal of Neurophysiology 118, no. 1 (2017): 532–43. http://dx.doi.org/10.1152/jn.00106.2017.

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N-methyl-d-aspartate receptors (NMDARs) govern synaptic plasticity, development, and neuronal response to insult. Prolonged activation of NMDARs such as during an insult may activate secondary currents or modulate Mg2+ sensitivity, but the conditions under which these occur are not fully defined. We reexamined the effect of prolonged NMDAR activation in juvenile mouse hippocampal slices. NMDA (10 μM) elicited current with the expected negative-slope conductance in the presence of 1.2 mM Mg2+. However, several minutes of continued NMDA exposure elicited additional inward current at −70 mV. A hi

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Fowler, Christopher S., Barrett A. Lee, and Stephen A. Matthews. "The Contributions of Places to Metropolitan Ethnoracial Diversity and Segregation: Decomposing Change Across Space and Time." Demography 53, no. 6 (2016): 1955–77. http://dx.doi.org/10.1007/s13524-016-0517-3.

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Frehse, Fraya. "Relational space through historically relational time – in the bodies of São Paulo’s pedestrians." Current Sociology 65, no. 4 (2017): 511–32. http://dx.doi.org/10.1177/0011392117697462.

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This article methodologically develops one theoretical issue regarding the sociological debate on relational space: How do past, present and future times interfere in the relations between human bodies and in their interconnectedness with material and/or symbolic goods in places, by considering that space is generated through these relations? After demonstrating the absence of this issue in the debate, the article presents a methodology for analytically identifying and conceptually interpreting the relational space produced through historically relational time in relational bodies in places, w

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Marathe, Thyagaraja, Saeed Daneshmand, and Gérard Lachapelle. "Assessment of Measurement Distortions in GNSS Antenna Array Space-Time Processing." International Journal of Antennas and Propagation 2016 (2016): 1–17. http://dx.doi.org/10.1155/2016/2154763.

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Antenna array processing techniques are studied in GNSS as effective tools to mitigate interference in spatial and spatiotemporal domains. However, without specific considerations, the array processing results in biases and distortions in the cross-ambiguity function (CAF) of the ranging codes. Inspace-time processing (STP)the CAF misshaping can happen due to the combined effect of space-time processing and the unintentional signal attenuation by filtering. This paper focuses on characterizing these degradations for different controlled signal scenarios and for live data from an antenna array.

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García-Esparza, Juan Antonio. "Abandon and reuse - The engineered space at a time of pandemics." VITRUVIO - International Journal of Architectural Technology and Sustainability 7, no. 1 (2022): 104–15. http://dx.doi.org/10.4995/vitruvio-ijats.2022.17331.

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This paper critically explores the evaluation of Historic Centres (HC) to establish new perspectives for the management of their values and attributes. The unconventional interpretation of these HC relies on therevision of the UNESCO Operational Guidelines to achieve new approaches to the cultural diversity of these spaces. A methodological approach based on interviews and open data cross-referencing aims to integrate the social and cultural aspects of the World Heritage cities (WH) in Spain. The research analyses the eventual cultural, architectural and social stratification as elements that

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Zhu, Yaoyao, and Gabriel Hoh Teck Ling. "Spatio-Temporal Changes and Driving Forces Analysis of Urban Open Spaces in Shanghai between 1980 and 2020: An Integrated Geospatial Approach." Remote Sensing 16, no. 7 (2024): 1184. http://dx.doi.org/10.3390/rs16071184.

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Although there is extensive research demonstrating the significant loss and fragmentation of urban spaces caused by rapid urbanization, to date, no empirical research in Shanghai has investigated the spatiotemporal dynamics of urban open spaces using a comprehensive set of integrated geospatial techniques based on long-sequence time series. Based on the Google Earth Engine (GEE) platform and using the Random Forest (RF) classifier, multiple techniques, namely landscape metrics, trend analysis, open space ratio, transition matrix, Normalized Difference Vegetation Index (NDVI), and fractal dimen

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Giesbrecht, Mateus, and Celso Pascoli Bottura. "Recursive Immuno-Inspired Algorithm for Time Variant Discrete Multivariable Dynamic System State Space Identification." International Journal of Natural Computing Research 5, no. 2 (2015): 69–100. http://dx.doi.org/10.4018/ijncr.2015040104.

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In this paper a recursive immuno inspired algorithm is proposed to identify time variant discrete multivariable dynamic systems. The main contribution of this paper has as starting point the idea that a multivariable dynamic system state space model can be seen as a point in a space defined by all possible matrices quadruples that define a state space model. With this in mind, the time variant discrete multivariable dynamic system modeling is transformed in an optimization problem and this problem is solved with an immuno inspired algorithm. To do that the inputs given to the system and the re

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Schweizer, Karl. "Visual Search, Reaction Time, and Cognitive Ability." Perceptual and Motor Skills 86, no. 1 (1998): 79–84. http://dx.doi.org/10.2466/pms.1998.86.1.79.

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The contributions of visual search to reaction time and cognitive ability were investigated with 45 subjects. Visual search was assessed via eye movements. The electrooculogram was recorded while a subject located letters arranged in a large display. Reaction time was obtained for a search task. A reasoning and a space scale served to assess cognitive ability. Substantial correlations of number, amplitude, and velocity of saccades with reaction time were obtained. Significant correlations of scores on ability scales with reaction times and amplitudes of saccades were also observed. Obviously,

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Ahmed, Bhutto Jaseem, Qin Bo, Qu Jabo, Zhai Xiaowei, and Abdullah Maitlo. "Urban Road Traffic Sign Detection & Recognition with Time Space Relationship Model." Sukkur IBA Journal of Emerging Technologies 4, no. 1 (2021): 22–33. http://dx.doi.org/10.30537/sjet.v4i1.860.

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Detection and recognition of urban road traffic signs is an important part of the Modern Intelligent Transportation System (ITS). It is a driver support function which can be used to notify and warn the driver for any possible incidence on the current stretch of road. This paper presents a robust and novel Time Space Relationship Model for high positive urban road traffic sign detection and recognition for a running vehicle. There are three main contributions of the proposed framework. Firstly, it applies fast color-segment algorithm based on color information to extract candidate areas of tra

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Лаговська, Валерія Олександрівна, and Галина Олександрівна Олейнікова. "THE HISTORY OF THE CHRONOTOPE RESEARCH." Scientific Bulletin of Kherson State University Series Germanic Studies and Intercultural Communication, no. 1 (August 21, 2023): 29–34. http://dx.doi.org/10.32999/ksu2663-3426/2023-1-4.

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The article examines the concept of the chronotope and its significance in the field of philological research. It offers a historical perspective on the study of space-time, starting from ancient Greek scientists and extending to influential thinkers of our time. The interdisciplinary nature of the study of time and space is investigated by exploring the contributions of renowned philosophers (Zeno of Elea, R. Descartes, I. Kant), mathematicians (H. Poincaré, B. Russell), physicists (G. Galilei, A. Einstein), and geographers (Ptolemy, Eratosthenes) who considered these aspects prior to the int

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KAMANI, DAVOUD. "MOVING MIXED BRANES IN COMPACT SPACE–TIME." Modern Physics Letters A 15, no. 27 (2000): 1655–64. http://dx.doi.org/10.1142/s021773230000222x.

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In this letter we present a general description of two moving branes in the presence of the field Bμν and gauge fields [Formula: see text] and [Formula: see text] on them, in space–time that some of its directions are compact on tori. Some examples are considered to elucidate this general description. Also the contribution of the massless states to the interaction is extracted. Boundary state formalism is a useful tool for these considerations.

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Zelenkauskaite, Asta, and Paolo Massa. "Contributing to Wikipedia." International Journal of Distributed Systems and Technologies 3, no. 4 (2012): 1–13. http://dx.doi.org/10.4018/jdst.2012100101.

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While the overall amount of user contributions in various namespaces has been discussed in previous research, the question of how and where users contribute, depending on their time spent in Wikipedia, is still open. This study analyzed contribution patterns in three namespaces of 685,897 active users of English Wikipedia since its inception. User editing behaviors were analyzed according to the amount of time spent within Wikipedia where contributions in content-oriented spaces were compared with social-oriented namespaces.

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Palomino, Juan. "Development of Regional Economics Studies in Peru: Contributions and Criticisms." Economia 43, no. 86 (2020): 39–56. http://dx.doi.org/10.18800/economia.202002.002.

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This research presents an overview of the evolution of regional economic studies in Peru. After a brief introduction, the document presents a summary of the different conceptions of space in Regional Economics through time. In addition, the document shows the origins of Regional Economics, as well as the factors that explain the interest in the development of regional studies in the Latin American context. This document also explains the importance of the geographical space of Peru for regional research. Indeed, the country is the perfect setting because Peru has a wide geographic diversity (e

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Legendre, Pierre, and Olivier Gauthier. "Statistical methods for temporal and space–time analysis of community composition data." Proceedings of the Royal Society B: Biological Sciences 281, no. 1778 (2014): 20132728. http://dx.doi.org/10.1098/rspb.2013.2728.

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This review focuses on the analysis of temporal beta diversity, which is the variation in community composition along time in a study area. Temporal beta diversity is measured by the variance of the multivariate community composition time series and that variance can be partitioned using appropriate statistical methods. Some of these methods are classical, such as simple or canonical ordination, whereas others are recent, including the methods of temporal eigenfunction analysis developed for multiscale exploration (i.e. addressing several scales of variation) of univariate or multivariate resp

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