cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The International Dimension of Academic Integrity: An Integrative Literature Review
Creators: name: Openo, Jason Aaron
Publisher: name: Canadian Perspectives on Academic Integrity
Year: 2019

description: Over half a million international students now study in Canada. This rapid increase in international enrollments has intensified focus on academic integrity because the stakes are high for both international students and the institutions that host them. Academic integrity violations involving international students may garner scandalous attention, and the international students who become entangled in incidents of academic misconduct face potentially devastating life consequences, including expulsion from academic studies and dishonor in family life. International students studying in Canada, particularly those whose first language is not English, face several hurdles not experienced by their Canadian counterparts. Overcoming these cultural barriers is a shared interest and a top strategic priority because academic credentials are a signal that assert students have mastered academic norms of the new culture. There remains considerable debate surrounding international students regarding their increased likelihood to commit academic integrity violations, and this integrative literature review explores the intersection of academic integrity and international students. It takes a broad and holistic approach to identify areas of conflict and knowledge gaps, with a focus on successful institutional interventions that proactively reduce the likelihood of academic misconduct. Little research details efficacious methods to reduce incidents of academic integrity violations involving international students, but taking stock of current interventions provides some guidance to institutions welcoming international students, and the faculty who teach them, so that they can both be successful in addressing academic integrity issues.
description: Canadian Perspectives on Academic Integrity, Vol 2 No 2 (2019): Volume 2, Issue 2
A bulk-boundary correspondence for dynamical phase transitions in one-dimensional topological insulators and superconductors
Creators: name: Sedlmayr, N.
name: Jäger, P.
name: Maiti, M.
name: Sirker, J.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the Loschmidt echo for quenches in open one-dimensional lattice models with symmetry protected topological phases. For quenches where dynamical quantum phase transitions do occur we find that cusps in the bulk return rate at critical times tc are associated with sudden changes in the boundary contribution. For our main example, the Su-Schrieffer-Heeger model, we show that these sudden changes are related to the periodical appearance of two eigenvalues close to zero in the dynamical Loschmidt matrix. We demonstrate, furthermore, that the structure of the Loschmidt spectrum is linked to the periodic creation of long-range entanglement between the edges of the system.
Highly He-Rich Matter Dredged Up by Extra Mixing through Stellar Encounters in Globular Clusters
Creators: name: Suda, Takuma
name: Tsujimoto, Takuji
name: Shigeyama, Toshikazu
name: Fujimoto, Masayuki Y.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The unveiled main-sequence splitting in omega Centauri as well as NGC 2808 suggests that matter highly-enriched in He (in terms of its mass fraction Y~0.4) was produced and made the color of some main-sequence stars bluer in these globular clusters (GCs). The potential production site for the He-rich matter is generally considered to be massive AGB stars that experience the second dredge-up. However, it is found that massive AGB stars provide the matter with Y~0.35 at most, while the observed blue-shift requires the presence of Y~0.4 matter. Here, we show that extra mixing, which operates in the red giant phase of stars less massive than ~2Msun, could be a mechanism that enhances He content in their envelopes up to Y~0.4. The extra mixing is supposed to be induced by red giant encounters with other stars in a collisional system like GCs. The Y~0.4 matter released in the AGB phase has alternative fates to (i) escape from a GC or (ii) be captured by kinematically cool stars through encounters. The AGB ejecta in omega Cen, which follows the latter case, can supply sufficient He to cause the observed blue-shift. Simultaneously, this scheme generates the extreme horizontal branch, as observed in omega Cen in response to the higher mass loss rates, which is also caused by stellar encounters.
description: Accepted for publication in ApJ Letters
Conversational AI: The Science Behind the Alexa Prize
Creators: name: Ram, Ashwin
name: Prasad, Rohit
name: Khatri, Chandra
name: Venkatesh, Anu
name: Gabriel, Raefer
name: Liu, Qing
name: Nunn, Jeff
name: Hedayatnia, Behnam
name: Cheng, Ming
name: Nagar, Ashish
name: King, Eric
name: Bland, Kate
name: Wartick, Amanda
name: Pan, Yi
name: Song, Han
name: Jayadevan, Sk
name: Hwang, Gene
name: Pettigrue, Art
Publisher: name: arXiv
Year: 2018
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Computation and Language (cs.CL)
subject: Computers and Society (cs.CY)
subject: Human-Computer Interaction (cs.HC)
subject: Multiagent Systems (cs.MA)
subject: FOS: Computer and information sciences
subject: I.2.7
subject: 97R40

description: Conversational agents are exploding in popularity. However, much work remains in the area of social conversation as well as free-form conversation over a broad range of domains and topics. To advance the state of the art in conversational AI, Amazon launched the Alexa Prize, a 2.5-million-dollar university competition where sixteen selected university teams were challenged to build conversational agents, known as socialbots, to converse coherently and engagingly with humans on popular topics such as Sports, Politics, Entertainment, Fashion and Technology for 20 minutes. The Alexa Prize offers the academic community a unique opportunity to perform research with a live system used by millions of users. The competition provided university teams with real user conversational data at scale, along with the user-provided ratings and feedback augmented with annotations by the Alexa team. This enabled teams to effectively iterate and make improvements throughout the competition while being evaluated in real-time through live user interactions. To build their socialbots, university teams combined state-of-the-art techniques with novel strategies in the areas of Natural Language Understanding, Context Modeling, Dialog Management, Response Generation, and Knowledge Acquisition. To support the efforts of participating teams, the Alexa Prize team made significant scientific and engineering investments to build and improve Conversational Speech Recognition, Topic Tracking, Dialog Evaluation, Voice User Experience, and tools for traffic management and scalability. This paper outlines the advances created by the university teams as well as the Alexa Prize team to achieve the common goal of solving the problem of Conversational AI.
description: 18 pages, 5 figures, Alexa Prize Proceedings Paper (https://developer.amazon.com/alexaprize/proceedings), Alexa Prize University Competition to advance Conversational AI
Transit Timing Observations from Kepler: I. Statistical Analysis of the First Four Months
Creators: name: Ford, Eric B.
name: Rowe, Jason F.
name: Fabrycky, Daniel C.
name: Carter, Josh
name: Holman, Matthew J.
name: Lissauer, Jack J.
name: Ragozzine, Darin
name: Steffen, Jason H.
name: Batalha, Natalie M.
name: Borucki, William J.
name: Bryson, Steve
name: Caldwell, Douglas A.
name: Gautier, Thomas N.
name: Jenkins, Jon M.
name: Koch, David G.
name: Li, Jie
name: Lucas, Philip
name: Marcy, Geoffrey W.
name: McCauliff, Sean
name: Mullally, Fergal R.
name: Quintana, Elisa
name: Thompson, Susan E.
name: Still, Martin
name: Tenenbaum, Peter
name: Twicken, Joseph D.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The architectures of multiple planet systems can provide valuable constraints on models of planet formation, including orbital migration, and excitation of orbital eccentricities and inclinations. NASA's Kepler mission has identified 1235 transiting planet candidates (Borcuki et al 2011). The method of transit timing variations (TTVs) has already confirmed 7 planets in two planetary systems (Holman et al. 2010; Lissauer et al. 2011a). We perform a transit timing analysis of the Kepler planet candidates. We find that at least ~12% of planet candidates currently suitable for TTV analysis show evidence suggestive of TTVs, representing at least ~65 TTV candidates. In all cases, the time span of observations must increase for TTVs to provide strong constraints on planet masses and/or orbits, as expected based on n-body integrations of multiple transiting planet candidate systems (assuming circular and coplanar orbits). We find that the fraction of planet candidates showing TTVs in this data set does not vary significantly with the number of transiting planet candidates per star, suggesting significant mutual inclinations and that many stars with a single transiting planet should host additional non-transiting planets. We anticipate that Kepler could confirm (or reject) at least ~12 systems with multiple transiting planet candidates via TTVs. Thus, TTVs will provide a powerful tool for confirming transiting planets and characterizing the orbital dynamics of low-mass planets. If Kepler observations were extended to at least six years, then TTVs would provide much more precise constraints on the dynamics of systems with multiple transiting planets and would become sensitive to planets with orbital periods extending into the habitable zone of solar-type stars.
description: accepted to ApJS, to appear in Kepler special issue; 35 pages incl. 6 figures & 6 tables, excl. 48 pages w/ 4 electronic only tables & 26 pages with additional figures; Additional large electronic only table at http://astro.ufl.edu/~eford/data/kepler/
Using brain imaging to track problem solving in a complex state space
Creators: name: Anderson, John R.
name: Fincham, Jon
name: Schneider, Darryl W.
name: Yang, Jian
Publisher: name: Carnegie Mellon University
Year: 2011
Subjects: subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology

description: This paper describes how behavioral and imaging data can be combined with a Hidden Markov Model (HMM) to track participants' trajectories through a complex state space. Participants completed a problem-solving variant of a memory game that involved 625 distinct states, 24 operators, and an astronomical number of paths through the state space. Three sources of information were used for classification purposes. First, an Imperfect Memory Model was used to estimate transition probabilities for the HMM. Second, behavioral data provided information about the timing of different events. Third, multivoxel pattern analysis of the imaging data was used to identify features of the operators. By combining the three sources of information, an HMM algorithm was able to efficiently identify the most probable path that participants took through the state space, achieving over 80% accuracy. These results support the approach as a general methodology for tracking mental states that occur during individual problem-solving episodes.
Alexander Petrov, a contributor to a Russian newspaper Moskovskij Komsomolets on the Ratsjevskij hoard and a Norwegian coin of St. Olaf: В Смоленске найдена восьмая известная в мире монета Олафа Здоровяка - Торговые связи древнего Смоленска
Creators: name: Petrov, Alexander
Publisher: name: figshare
Year: 2021
Subjects: subject: 210102 Archaeological Science
subject: FOS: History and archaeology
subject: 210108 Historical Archaeology (incl. Industrial Archaeology)
subject: 210199 Archaeology not elsewhere classified
subject: 219999 History and Archaeology not elsewhere classified
subject: 210105 Archaeology of Europe, the Mediterranean and the Levant
subject: Archaeology
subject: 160607 International Relations
subject: FOS: Political science
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business
subject: 210307 European History (excl. British, Classical Greek and Roman)

description: - Как сообщили на телеканале ГТРК-Смоленск, Александр Петров, член Норвежской Нумизматической Ассоциации и Британского Королевского Нумизматического Общества (Норвегия) отметил: «Сообщение музея о нахождении монеты привело к большому интересу в Норвегии, в том числе в кабинете монет в Осло... Находка, несомненно, имеет большое значение для норвежско-русской истории, Это одна из первых монет в Норвегии».
Top quark forward-backward asymmetry at Tevatron and its implications at the LHC
Creators: name: Bhattacherjee, Biplob
name: Biswal, Sudhansu S.
name: Ghosh, Diptimoy
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The measurement of forward-backward asymmetry in the top and anti-top quark ($t \bar{t}$) production has been recently reconfirmed by the CDF Collaboration and shows a more than $3σ$ deviation from the Standard Model(SM) prediction in the large $t \bar{t}$ invariant mass region. Models with new W$^{\prime}$ or Z$^{\prime}$ bosons have been invoked to explain this deviation. In the context of these models we perform a $χ^2$ analysis with all the available experimental numbers in different $ΔY$ and $M_{t \bar{t}}$ bins. We show that for the $Z^{\prime}$ model the region of parameter space which explain the Tevatron asymmetry can be probed in the same sign top production channel by Tevatron itself. Moreover, we consider a recently proposed observable, the one sided forward-backward asymmetry ($A_{OFB}$) at the LHC and conclude that both the W$^{\prime}$ and Z$^{\prime}$ models can lead to sizable $A_{OFB}$ even at the LHC running at a center of mass energy of 7 TeV for the model parameters consistent with the Tevatron measurements.
description: 12 pages, 8 figures, discussions and references added, accepted for publication in Physical Review D (Rapid Communications)
On multistability behavior of Unstable Dissipative Systems
Creators: name: Hernández, Andres Anzo
name: Gilardi-Velázquez, Hector Eduardo
name: Cantón, Eric Campos
Publisher: name: arXiv
Year: 2018
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We present a dissipative system with unstable dynamics called unstable dissipative system which are capable of generating a multi-stable behavior, i.e., depending on its initial condition the trajectory of the system converge to a specific basin of attraction. A piecewise linear (PWL) systems is generated based on unstable dissipative systems (UDS) whose main attribute when they are switched is the generation of chaotic trajectories with multiple wings or scrolls. For this PWL system a structure is proposed where both the linear part and the switching function depend on two parameters. We show the range of values of such parameters where the PWL system presents a multistable behavior and trajectories with multiscrolls.
description: 21 pages, 10 figures, 23 references
Objectively discerning Autler-Townes Splitting from Electromagnetically Induced Transparency
Creators: name: Anisimov, Petr M.
name: Dowling, Jonathan P.
name: Sanders, Barry C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Autler-Townes splitting (ATS) and electromagnetically-induced transparency (EIT) both yield transparency in an absorption profile, but only EIT yields strong transparency for a weak pump field due to Fano interference. Empirically discriminating EIT from ATS is important but so far has been subjective. We introduce an objective method, based on Akaike's information criterion, to test ATS vs. EIT from experimental data and determine which pertains. We apply our method to a recently reported induced-transparency experiment in superconducting circuit quantum electrodynamics.
description: Extended discussion of ATS vs. EIT testing in realistic systems is given. Two figures were combined and one new was added
DIMENSIONING OF WIRELESS – OPTICAL HYBRID 5G NETWORKS
Creators: name: HENOK MEZEMR
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019

description: In recent years, the evolution of mobile networks into 5G has been developed collectively by the operators, vendors, corporate research laboratories, universities, and the public sector players. 5G will cover almost all aspects of the human civilization. Employing wireless - optical hybrid networks is important for high speed, low latency, high capacity, reliable communication, and network flexibility. Dimensioning is the major part of network planning and design, so it is a fundamental step in the process of deploying a network. 5G is going to be a hybrid infrastructure of wireless and optical networks, and there is a need of model for dimensioning of this network. In this thesis, a mathematical expression for dimensioning of wireless - optical hybrid 5G networks have been developed. Dimensioning from the optical part have been started since, it is in the backbone of 5G network. In this part, expressions to estimate the network parameters of the constituent elements of the network in terms of node and link parameters are presented. In the node, we consider EXCs, OXCs, transponders and regenerators. In the link part, we consider the network requirements of OLT, OA, and OF. Finally, the bandwidth required to provide a higher data rate needed in 5G is calculated from the typical 5G architecture and specifications. In the wireless part, expressions for coverage and capacity estimation for the frequency band of 3.5 GHz have been developed. The coverage is determined from the maximum path loss (MAPL) in which it is calculated from the radio link budget. The MAPL is converted in to the maximum distance calculation by using WINNER II propagation model. The number of gNBs needed to cover a certain area and the radius of the cell is determined in this part. At last, correlation between the optical and wireless parts is developed in terms of bandwidth. The methods developed in this work will be used for the fast estimation of network cost and essential for network planning and design.
The environment of the fast rotating star Achernar - High-resolution thermal infrared imaging with VISIR in BURST mode
Creators: name: Kervella, Pierre
name: De Souza, Armando Domiciano
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Context: The geometry of the circumstellar envelopes (CSE) surrounding Be stars is still uncertain, although it is often assumed that they are formed by a disk around the stellar equator and a hot polar wind. Achernar (Alpha Eri) is the nearest Be star, and we recently detected a CSE using near-IR interferometry. Aims: Our initial goal was to constrain the geometry and flux contribution of the CSE of Achernar at distances of a few tens of AU from the star, in the thermal IR domain to complement our near-IR interferometric observations. Methods: We obtained diffraction-limited images of Achernar in the thermal infrared using VISIR at the VLT. In order to freeze the turbulence, we used the BURST mode of this instrument. Results: The images obtained in the PAH1 band show a point-like source located 0.280" north-west of Achernar (projected linear separation of 12.3 AU). Its emission is 1.8 % of the flux of Achernar in this band, but is not detected in the PAH2, SiC and NeII bands. We also provide new thermal IR photometry of Achernar in four bands. Conclusions: Being aligned with the expected azimuth of the equatorial plane of Achernar, the detected source could be a main sequence stellar companion. In this case, it apparent brightness would correspond to an A7V spectral type.
description: 4 pages, 4 figures
Convergence and Concentration of Empirical Measures under Wasserstein Distance in Unbounded Functional Spaces
Creators: name: Lei, Jing
Publisher: name: arXiv
Year: 2018
Subjects: subject: Statistics Theory (math.ST)
subject: Machine Learning (stat.ML)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: We provide upper bounds of the expected Wasserstein distance between a probability measure and its empirical version, generalizing recent results for finite dimensional Euclidean spaces and bounded functional spaces. Such a generalization can cover Euclidean spaces with large dimensionality, with the optimal dependence on the dimensionality. Our method also covers the important case of Gaussian processes in separable Hilbert spaces, with rate-optimal upper bounds for functional data distributions whose coordinates decay geometrically or polynomially. Moreover, our bounds of the expected value can be combined with mean-concentration results to yield improved exponential tail probability bounds for the Wasserstein error of empirical measures under Bernstein-type or log Sobolev-type conditions.
description: 35 pages
Dynamics of Fundamental Matter in N=2* Yang-Mills Theory
Creators: name: Albash, Tameem
name: Johnson, Clifford V.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the dynamics of quenched fundamental matter in $\mathcal{N}=2^\ast$ supersymmetric large $N$ SU(N) Yang-Mills theory at zero temperature. Our tools for this study are probe D7-branes in the holographically dual $\mathcal{N}=2^\ast$ Pilch-Warner gravitational background. Previous work using D3-brane probes of this geometry has shown that it captures the physics of a special slice of the Coulomb branch moduli space of the gauge theory, where the $N$ constituent D3-branes form a dense one dimensional locus known as the enhancon, located deep in the infrared. Our present work shows how this physics is supplemented by the physics of dynamical flavours, revealed by the D7-branes embeddings we find. The Pilch-Warner background introduces new divergences into the D7-branes free energy, which we are able to remove with a single counterterm. We find a family of D7-brane embeddings in the geometry and discuss their properties. We study the physics of the quark condensate, constituent quark mass, and part of the meson spectrum. Notably, there is a special zero mass embedding that ends on the enhancon, which shows that while the geometry acts repulsively on the D7-branes, it does not do so in a way that produces spontaneous chiral symmetry breaking.
description: 24 pages, 8 figures. Corrected typos, added comment about counterterm. To appear in JHEP
Multifunctional use of chestnut forest in Galicia (PA) - Uso multifuncional del bosque de castaño en Galicia (PA)
Creators: name: Rigueiro-Rodríguez A
name: Ferreiro-Domínguez N
name: Rodríguez-Rigueiro FJ
name: Santiago-Freijanes JJ
name: González-Hernández MP
name: Fernández-Lorenzo JL
name: Romero-Franco R
name: Mosquera-Losada MR
Publisher: name: Zenodo
Year: 2019
Subjects: Europe
Livestock production
Europa
Producción ganadera

description: Las plantaciones de castaño son de las más rentables que se pueden realizar en las zonas de clima atlántico de Europa como muestra la existencia del reconocimiento de Identificación Geográfica Protegida para sus frutos, que tienen un buen mercado y son muy apreciados en países de Europa, Asia y Sudamérica. Hoy en día, un soto de castaños bien gestionado puede proporcionar anualmente productos por valor superior a los 6000 euros, algo muy difícil o prácticamente imposible de conseguir con cualquier otro tipo de aprovechamiento agrícola, ganadero o forestal. Además de su importancia económica, los sotos de castaños tienen una gran importancia ecológica, paisajística, genética y cultural. Galicia tiene una gran historia de producción de castaña porque fue la principal fuente de carbohidratos hasta el siglo XIX, cuando se generalizó el cultivo de la patata y la aparición de la enfermedad de la tinta destruyó aquellos sotos situados a altitudes bajas y clima con influencia oceánica, circunstancias que favorecen la expansión de los hongos causantes de la enfermedad.
Musca domestica Linnaeus, Syst. Nat.
Creators: name: O. H. Swezey
Publisher: name: Zenodo
Year: 1946
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Anthomyiidae
Musca
Musca domestica

description: 9.Musca domestica Linnaeus, Syst. Nat. 10th ed., 596, 1758. This cosmopolitan fly was extremely abundant everywhere in Guam. The maggots fed abundantly in cow dung and carabao dung, the latter of which was plentiful for the purpose. Many specimens were collected. Five specimens in Bishop Museum, Fullaway.
description: Published as part of O. H. Swezey, 1946, SOME MISCELLANEOUS DIPTERA OF GUAM, pp. 195-200 in Insects of Guam-II, Hawaii, Honolulu :Bernice P. Bishop Museum on page 197
Analysis of the vertex $D^*D^* ρ$ with the light-cone QCD sum rules
Creators: name: Wang, Zhi-Gang
name: Wang, Zhi-Bin
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this article, we analyze the vertex $D^*D^*ρ$ with the light-cone QCD sum rules. The strong coupling constant $g_{D^*D^*ρ}$ is an important parameter in evaluating the charmonium absorption cross sections in searching for the quark-gluon plasmas. Our numerical value for the $g_{D^*D^*ρ}$ is consistent with the prediction of the effective SU(4) symmetry and vector meson dominance theory.
description: 6 pages, 1 figure, revised version
Using Brain Imaging to Extract the Structure of Complex Events at the Rational Time Band
Creators: name: Anderson, John R.
name: Yulin  Qin
Publisher: name: Carnegie Mellon University
Year: 2008
Subjects: subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology

description: A functional magnetic resonance imaging (fMRI) study was performed in which participants performed a complex series of mental calculations that spanned about 2 min. An Adaptive Control of Thought—Rational (ACT-R) model [Anderson, J. R. How can the human mind occur in the physical universe? New York: Oxford University Press, 2007] was developed that successfully fit the distribution of latencies. This model generated predictions for the fMRI signal in six brain regions that have been associated with modules in the ACT-R theory. The model's predictions were confirmed for a fusiform region that reflects the visual module, for a prefrontal region that reflects the retrieval module, and for an anterior cingulate region that reflects the goal module. In addition, the only significant deviations to the motor region that reflects the manual module were anticipatory hand movements. In contrast, the predictions were relatively poor for a parietal region that reflects an imaginal module and for a caudate region that reflects the procedural module. Possible explanations of these poor fits are discussed. In addition, exploratory analyses were performed to find regions that might correspond to the predictions of the modules.
Modeling the Oblique Spin Precession in Lateral Spin Valves for Accurate Determination of Spin Lifetime Anisotropy: Effect of Finite Contact Resistance and Channel Length
Creators: name: Zhu, Tiancong
name: Kawakami, Roland K
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The spin lifetime anisotropy is an important quantity for investigating the spin relaxation mechanisms in graphene and in heterostructures of two-dimensional materials. We generalize the diffusive spin transport equations of oblique spin precession in a lateral spin valve with finite contact resistance. This yields a method to determine the spin lifetime anisotropy ratio ξ=τ$_{\perp}$/τ$_{\parallel}$, which is the ratio between lifetimes of spin polarized perpendicular and parallel to the graphene surface. By solving the steady-state Bloch equations, we show that the line-shape of the oblique spin precession signal can be described with six dimensionless parameters, which can be solved analytically. We demonstrate that the anisotropic spin precession characteristics can be strongly suppressed by contact induced spin relaxation originating from conductance mismatch between the channel material and electrodes. To extract the spin lifetime anisotropy ratio accurately, we develop a closed form equation that includes the effect of finite contact resistance. Furthermore, we demonstrate that in the high contact resistance regime, the minimum channel length required for accurately determining the spin lifetime anisotropy for a sufficiently low external magnetic field is only determined by the diffusion coefficient of the channel material, as opposed to the spin diffusion length. Our work provides an accurate model to extract the spin lifetime anisotropy ratio from the oblique spin precession measurement, and can be used to guide the device design for such measurements.
description: 27 pages, 5 figures
MOA-2009-BLG-387Lb: A massive planet orbiting an M dwarf
Creators: name: Batista, Virginie
name: Gould, A.
name: Dieters, S.
name: Dong, Subo
name: Bond, I.
name: Beaulieu, J. P.
name: Maoz, D.
name: Monard, B.
name: Christie, G. W.
name: McCormick, J.
name: Albrow, M. D.
name: Horne, K.
name: Tsapras, Y.
name: Burgdorf, M. J.
name: Novati, S. Calchi
name: Skottfelt, J.
name: Caldwell, J.
name: Kozlowski, S.
name: Kubas, D.
name: Gaudi, B. S.
name: Han, C.
name: Bennett, D. P.
name: An, J.
name: Collaboration, the MOA
name: Collaboration, the PLANET
name: Collaboration, the MicroFUN
name: Consortium, the MiNDSTEp
name: Collaboration, the RoboNet
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We report the discovery of a planet with a high planet-to-star mass ratio in the microlensing event MOA-2009-BLG-387, which exhibited pronounced deviations over a 12-day interval, one of the longest for any planetary event. The host is an M dwarf, with a mass in the range 0.07 M_sun < M_host < 0.49M_sun at 90% confidence. The planet-star mass ratio q = 0.0132 +- 0.003 has been measured extremely well, so at the best-estimated host mass, the planet mass is m_p = 2.6 Jupiter masses for the median host mass, M = 0.19 M_sun. The host mass is determined from two "higher order" microlensing parameters. One of these, the angular Einstein radius θ_E = 0.31 +- 0.03 mas, is very well measured, but the other (the microlens parallax π_E, which is due to the Earth's orbital motion) is highly degenate with the orbital motion of the planet. We statistically resolve the degeneracy between Earth and planet orbital effects by imposing priors from a Galactic model that specifies the positions and velocities of lenses and sources and a Kepler model of orbits. The 90% confidence intervals for the distance, semi-major axis, and period of the planet are 3.5 kpc < D_L < 7.9 kpc, 1.1 AU < a < 2.7AU, and 3.8 yr < P < 7.6 yr, respectively.
description: 20 pages including 8 figures. A&A 529 102 (2011)
title: THE C3H2220-211 TRANSITION - ABSORPTION IN COLD DARK CLOUDS
Creators: name: MATTHEWS, HE
name: MADDEN, SC
name: AVERY, LW
name: Irvine, William M.
Publisher: name: University of Massachusetts Amherst
Year: 1986
Subjects: subject: Astrophysics and Astronomy

description: The published version is located at http://adsabs.harvard.edu/doi/10.1086/184730
description: The first observations of the 2(20)-2(11) transition of cyclopropenylidene (C3H2) at 21.6 GHz are described. The most significant finding is that the 2(20)-2(11) transition line is always seen in absorption, in contrast to the 18.3-GHz 1(10)-1(01) resonance line of the ortho species which always appears in emission in cold dust clouds. Thus the former must have an excitation temperature less than the brightness temperature of the universal microwave background and becomes only the second molecule to exhibit such 'refrigeration' below this temperature in cold, dark dust clouds.
Studies to elucidate the cause of alteration in colony morphotype of Xylella fastidiosa subsp. pauca, ST53
Creators: name: Giampetruzzi Annalisa
Publisher: name: Zenodo
Year: 2019

description: Abstract: Isolation in pure culture of Xylella fastidiosa (Xf) strains from infected olives showing severe
 decline in southern Italy, represented a major breakthrough for advancing the research on this first
 and most severe bacterial outbreak which emerged a few years ago in Europe. However, during an
 extensive isolation campaign, some of the cultured isolates (Xf subspecies pauca, ST53) started to
 show an odd shape and growth pattern. Briefly, after an initial growth, the colonies started to become
 translucent, of reduced size, roughness and adherent to the media. Passage of these isolates on new
 agar-plates, regardless of the media, evolved in cell death. Microscope examination using the
 BacLight LIVE/DEAD bacterial viability staining kit and observations at the Transmission Electron
 Microscopy (TEM) revealed that the odd-shaped bacterial colonies consisted of dead cells, and the
 presence of different bacteriophage-(like) particles were observed in the TEM preparations. Ultrathin
 sections of these bacterial colonies showed a higher number of intracellular vesicles/endospores than
 those observed in the cells with regular morphotype, and their content discharged into the extracellular
 space. Filtrated suspensions prepared from altered colonies scraped from the plates, were able to
 reproduce similar alterations when mixed with ST53-isolates (subsp. pauca) of the regular
 morphotype. Conversely, no effects were noticed when strains belonging to other subspecies were put
 in contact with the same filtrates.
 Studies are in progress to understand the nature of these intracellular vesicles/endospores which
 resemble a sort of ‘pseudolysogenic phages’ (Ripp S and Miller RV, 1997) induced in other bacterial
 species as a strategy to enhance survival in unfavourable environmental conditions. Indeed, attempts
 to purify phage particles from cultures displaying odd colonies are ongoing to verify whether they
 originate by spontaneous induction from temperate phages, known to occur in the genomes of the
 ST53-isolates causing the infections in the epidemic area of Apulia (southern Italy)
Ferramenta da Terapia Gestalt: Uso de Técnicas de Relaxamento
Creators: name: Brandl, Edenilson
Publisher: name: Zenodo
Year: 2024
Subjects: Ferramenta da Terapia Gestalt
Terapia Gestalt
Uso de Técnicas de Relaxamento
Enciclopédia da Conscienciologia

description: Definologia: O uso de técnicas de relaxamento é uma ferramenta terapêutica da Terapia Gestalt que visa promover o bem-estar físico, emocional e mental do indivíduo, através da redução da tensão muscular, da diminuição do estresse e da promoção do equilíbrio psicofísico.
title: ADCO, Grènetier de Cîteaux : comptes (1499-1503) (11 H 1173), f. 00034
Creators: name: de la Côte-d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CBMA/CG21/F.PETOT/2019
name: Petot, Frédéric
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: comptes

description: Grènetier de Cîteaux : comptes (1499-1503), Archives départementales de la Côte-d'Or, (11 H 1173). Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Grènetier de Cîteaux : comptes (1499-1503), Archives départementales de la Côte-d'Or, (11 H 1173), f. 00034, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https://manuscrits.cbma-project.eu/
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
АЙБСИЗЛИК ПРЕЗУМПЦИЯСИ ВА ЖИНОЯТ ИШЛАРИНИ ТЕРГОВ ҚИЛИШНИНГ СУДГАЧА БЎЛГАН БОСҚИЧИДА ИСБОТЛАШ
Creators: name: Юлчиев, Баходиржон
Publisher: name: Zenodo
Year: 2024

description: Мақолада айбсизлик презумпцияси ва жиноят ишларини тергов қилишнинг судгача бўлган босқичида исботлаш билан боғлиқ ҳолатлар бўйича миллий ва хорижий мамлакатлар тажрибаси таҳлил қилинган ҳолда ушбу масалалар бўйича тергов амалиётида учраётган айрим муаммоли ҳолатлар ҳамда уларни бартараф этиш юзасидан асослантирилган таклиф ва тавсиялар ишлаб чиқилган. Шунингдек, мақолада таҳлиллар асосида хориж мамлакатларининг кенг имкониятга эга қонунчилигини мамлакатимиз қонунчилигига имплементация қилиш зарурати ёритилган.
Using arterial spin labeling perfusion MRI to explore how midazolam produces anterograde amnesia.
Creators: name: Peipeng  Liang
name: Manelis, Anna
name: Xiaonan L. Liu
name: Aizenstein, Howard J.
name: Gyulai, Ferenc
name: Quinlan, Joseph J.
name: Reder, Lynne M.
Publisher: name: Carnegie Mellon University
Year: 2012
Subjects: subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology

description: While our previous work suggests that the midazolam-induced memory impairment results from the inhibition of new association formation, little is known about the neural correlates underlying these effects beyond the effects of GABA agonists on the brain. We used arterial spin-labeling perfusion MRI to measure cerebral blood flow changes associated with the effects of midazolam on ability to learn arbitrary word-pairs. Using a double-blind, within-subject cross-over design, subjects studied word-pairs for a later cued-recall test while they were scanned. Lists of different word-pairs were studied both before and after an injection of either saline or midazolam. As expected, recall was severely impaired under midazolam. The contrast of MRI signal before and after midazolam administration revealed a decrease in CBF in the left dorsolateral prefrontal cortex (DLPFC), left cingulate gyrus and left posterior cingulate gyrus/precuneus. These effects were observed even after controlling for any effect of injection. A strong correlation between the midazolam-induced changes in neural activity and memory performance was found in the left DLPFC. These findings provide converging evidence that this region plays a critical role in the formation of new associations and that low functioning of this region is associated with anterograde amnesia.
L'influence De La Gestion Des Connaissances Sur La Performance Au Travail Au Sein Des PME Marocaines
Creators: name: EL BOUBKARI, Lamyae
name: EL MACHKOUR, Mounir
Publisher: name: Zenodo
Year: 2024
Subjects: la gestion des connaissances ; la performance au travail ; PME ; le processus de gestion des connaissances.

description: Les PME sont des acteurs clés de l'économie, et leur succès est crucial pour la croissance économique nationale. Cependant, dans un environnement économique en constante évolution, les PME sont confrontées à des défis tels que la concurrence accrue, l'incertitude du marché et l'évolution rapide des technologies. Afin d'assurer leur compétitivité et leur prospérité, les PME doivent constamment trouver des moyens d'améliorer leur performance et d'optimiser leurs processus de travail. Dans cette perspective, la performance des employés au travail et la gestion efficace de leurs connaissances sont considérées comme des facteurs clés de compétitivité.

En capitalisant sur les connaissances et l'expérience accumulées de leur capital humain, les PME peuvent optimiser leurs processus, améliorer leur efficacité, stimuler la créativité et l'innovation, renforçant par conséquent la performance des employés au travail et leur compétitivité.

Le présent travail vise à explorer la relation entre la gestion des connaissances et la performance au travail au sein des PME en mettant en évidence le processus de gestion des connaissances.
Entropic Dynamics: Reconstructing Quantum Field Theory in Curved Space-time
Creators: name: Ipek, Selman
name: Abedi, Mohammad
name: Caticha, Ariel
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The Entropic Dynamics reconstruction of quantum mechanics is extended to quantum field theory in curved space-time. The Entropic Dynamics framework, which derives quantum theory as an application of the method of maximum entropy, is combined with the covariant methods of Dirac, Hojman, Kuchař, and Teitelboim, which they used to develop a framework for classical covariant Hamiltonian theories. The goal is to formulate an information-based alternative to current approaches based on algebraic quantum field theory. One key ingredient is the adoption of a local notion of entropic time in which instants are defined on curved three-dimensional surfaces and time evolution consists of the accumulation of changes induced by local deformations of these surfaces. The resulting dynamics is a non-dissipative diffusion that is constrained by the requirements of foliation invariance and incorporates the necessary local quantum potentials. As applications of the formalism we derive the Ehrenfest relations for fields in curved-spacetime and briefly discuss the nature of divergences in quantum field theory.
description: V2 contains added comments on reconstructing QFT, on QFT divergences, various improvements in style, and corrects some typos. V3 contains new section containing applications, including a derivation of the Ehrenfest relations for a quantum scalar field in curved space-time
Using a Model to Compute the Optimal Schedule of Practice
Creators: name: Pavlik, Philip
name: Anderson, John R.
Publisher: name: Carnegie Mellon University
Year: 2008
Subjects: subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology

description: By balancing the spacing effect against the effects of recency and frequency, this paper explains how practice may be scheduled to maximize learning and retention. In an experiment, an optimized condition using an algorithm determined with this method was compared with other conditions. The optimized condition showed significant benefits with large effect sizes for both improved recall and recall latency. The optimization method achieved these benefits by using a modeling approach to develop a quantitative algorithm, which dynamically maximizes learning by determining for each item when the balance between increasing temporal spacing (that causes better long-term recall) and decreasing temporal spacing (that reduces the failure related time cost of each practice) means that the item is at the spacing interval where long-term gain per unit of practice time is maximal. As practice repetitions accumulate for each item, items become stable in memory and this optimal interval increases.
title: ZAOUIET MEDIENN
title: ZAOUIET MEDIENN
title: Atlas archéologique de la Tunisie
Creators: name: Babelon, Ernest Charles François
name: Babelon, Ernest Charles François > Auteur
name: Cagnat, René Louis Victor > Auteur
name: Reinach, Salomon > Auteur
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2022
Subjects: subject: Archéologie
subject: Antiquité
subject: Recherche archéologique
subject: Savoirs (Les)
subject: Cartographie
subject: Atlas
subject: Atlas archéologique

description: [Atlas archéologique de la Tunisie ; Edition spéciale des cartes topographiques publiées par la ministère de la Guerre, accompagnée d’un texte explicatif rédigé par E. Babelon, R. Cagnat et S. Reinach, membres de la Commission de l’Afrique du Nord (1ère série, 60 feuilles au 1/50 000 et notices)]
description: Atlas
description: Atlas-Archeo-Tunisie_020
description: 1/50 000
description: La Méditerranée à la carte
description: Paris
description: Source: Institut de recherche sur le Maghreb contemporain (IRMC); Cité numérique de la Méditerranée (MMSH)
description: Source: La Méditerranée à la carte
description: Source: La Méditerranée à la carte > Atlas archéologique de la Tunisie
description: Relation: https://cinumed.mmsh.univ-aix.fr/idurl/1/96178
description: Coverage: Zaouiet Medienn
description: Coverage: Tunisie
description: Coverage: XIXe siècle;XXe siècle
description: Temporal: XIXe siècle;XXe siècle
description: Provenance: Institut de recherche sur le Maghreb contemporain (IRMC); Cité numérique de la Méditerranée (MMSH)
Is There a Relationship between the Density of Primordial Black Holes in a Galaxy and the Rate of Cosmological Gamma-Ray Bursts?
Creators: name: Shatskiy, Alexander
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The rate of accretion of matter from a solar-type star onto a primordial black hole (PBH) that passes through it is calculated. The probability that a PBH is captured into an orbit around a star in a galaxy is found. The mean lifetime of the PBH in such an orbit and the rate of orbital captures of PBHs in the galaxy are calculated. It is shown that this rate does not depend on the mass of the PBH. This mechanism cannot make an appreciable contribution to the rate of observed gamma-ray bursts. The density of PBHs in the galaxy can reach a critical value - the density of the mass of dark matter in the galaxy.
description: 7 pages
Social Media Enabled Contract Cheating
Creators: name: Lancaster, Thomas
Publisher: name: Canadian Perspectives on Academic Integrity
Year: 2019

description: The contract cheating industry, those services and individuals who are supplying students with original work for assessment, is evolving. Contract cheating companies are using enhanced marketing techniques, including social media marketing, to encourage potential customers to avail themselves of services that breach academic integrity. Social media is proving to be integral to the success of the contract cheating industry as a whole. It allows contract cheating companies to recruit academic ghost writers and other staff. In addition, social media is fuelling a black market trade in contract cheating service accounts. Potential ghost writers who would not otherwise qualify are using this hidden market to get accounts to work for contract cheating services. This paper examines the state of the contract cheating industry, paying particular attention to the role that social media has played in the industry’s development and apparent growth. The discussion of the industry is supported by example and case studies. These cover the end-to-end contract cheating process from when an essay mill is first set up, through to supplying services to students and to engaging contract cheating service workers. Examples of contract cheating and social media use of specific interest to Canadian academics and scholars are included. The paper concludes with a discussion of future challenges as well as the opportunities for academic integrity discussions. These are intended to enable academics to work with students as academic integrity partners and to enable discussions that make use of what is known about the operation of the contract cheating industry.
description: Canadian Perspectives on Academic Integrity, Vol 2 No 2 (2019): Volume 2, Issue 2