cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Light Heavy MSSM Higgs Bosons at Large tan_beta
Creators: name: Ellis, J.
name: Heinemeyer, S.
name: Olive, K. A.
name: Weiglein, G.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The region of MSSM Higgs parameter space currently excluded by the CDF Collaboration, based on an analysis of ~1 fb^-1 of integrated luminosity, is less than the expected sensitivity. We analyze the potential implications of the persistence of this discrepancy within the MSSM, assuming that the soft supersymmetry-breaking contributions to scalar masses are universal, apart from those to the Higgs masses (the NUHM model). We find that a light heavy MSSM Higgs signal in the unexcluded part of the sensitive region could indeed be accommodated in this simple model, even after taking into account other constraints from cold dark matter, electroweak precision observables and B physics observables. In this case the NUHM suggests that supersymmetric signatures should also be detectable in the near future in some other measurements such as BR(B_s -> mu+ mu-), BR(b -> s gamma) and (g-2)_mu, and M_h would have to be very close to the LEP exclusion limit. In addition, the dark matter candidate associated with this model should be on the verge of detection in direct detection experiments.
description: 14 pages, 2 figures
The three-point function of planar quadrangulations
Creators: name: Bouttier, J.
name: Guitter, E.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: Combinatorics (math.CO)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We compute the generating function of random planar quadrangulations with three marked vertices at prescribed pairwise distances. In the scaling limit of large quadrangulations, this discrete three-point function converges to a simple universal scaling function, which is the continuous three-point function of pure 2D quantum gravity. We give explicit expressions for this universal three-point function both in the grand-canonical and canonical ensembles. Various limiting regimes are studied when some of the distances become large or small. By considering the case where the marked vertices are aligned, we also obtain the probability law for the number of geodesic points, namely vertices that lie on a geodesic path between two given vertices, and at prescribed distances from these vertices.
description: 43 pages, 16 color figures, misprints and figure 15 corrected
All exceptional surgeries on alternating knots are integral surgeries
Creators: name: Ichihara, Kazuhiro
Publisher: name: arXiv
Year: 2008
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M50; 57M25

description: We show that all exceptional surgeries on hyperbolic alternating knots in the 3-sphere are integral surgeries.
description: 10 pages, 2 figures
Quiver Gauge Theory and Noncommutative Vortices
Creators: name: Lechtenfeld, Olaf
name: Popov, Alexander D.
name: Szabo, Richard J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct explicit BPS and non-BPS solutions of the Yang-Mills equations on noncommutative spaces R^{2n}_theta x G/H which are manifestly G-symmetric. Given a G-representation, by twisting with a particular bundle over G/H, we obtain a G-equivariant U(k) bundle with a G-equivariant connection over R^{2n}_theta x G/H. The U(k) Donaldson-Uhlenbeck-Yau equations on these spaces reduce to vortex-type equations in a particular quiver gauge theory on R^{2n}_theta. Seiberg-Witten monopole equations are particular examples. The noncommutative BPS configurations are formulated with partial isometries, which are obtained from an equivariant Atiyah-Bott-Shapiro construction. They can be interpreted as D0-branes inside a space-filling brane-antibrane system.
description: talk by O.L. at the 21st Nishinomiya-Yukawa Memorial Symposium, Kyoto, 15 Nov. 2006
The H$α$ Luminosity Function and Star Formation Rate at $z \approx 0.24$ in the Cosmos 2 Square-Degree Field
Creators: name: Shioya, Y.
name: Taniguchi, Y.
name: Sasaki, S. S.
name: Nagao, T.
name: Murayama, T.
name: Takahashi, M. I.
name: Ajiki, M.
name: Ideue, Y.
name: Mihara, S.
name: Nakajima, A.
name: Scoville, N. Z.
name: Mobasher, B.
name: Aussel, H.
name: Giavalisco, M.
name: Guzzo, L.
name: Hasinger, G.
name: Impey, C.
name: LeFevre, O.
name: Lilly, S.
name: Renzini, A.
name: Rich, M.
name: Sanders, D. B.
name: Schinnerer, E.
name: Shopbell, P.
name: Leauthaud, A.
name: Kneib, J. -P.
name: Rhodes, J.
name: Massey, R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: To derive a new H$α$ luminosity function and to understand the clustering properties of star-forming galaxies at $z \approx 0.24$, we have made a narrow-band imaging survey for H$α$ emitting galaxies in the HST COSMOS 2 square degree field. We used the narrow-band filter NB816 ($λ_c = 8150$ Å, $Δλ= 120$ Å) and sampled H$α$ emitters with $EW_{\rm obs}(\rm Hα+ [N\textsc{ii}]) > 12$ Åin a redshift range between $z=0.233$ and $z=0.251$ corresponding to a depth of 70 Mpc. We obtained 980 H$α$ emitting galaxies in a sky area of 5540 arcmin$^2$, corresponding to a survey volume of $3.1 \times 10^4 {\rm Mpc^3}$. We derive a H$α$ luminosity function with a best-fit Schechter function parameter set of $α= -1.35^{+0.11}_{-0.13}$, $\logϕ_* = -2.65^{+0.27}_{-0.38}$, and $\log L_* ({\rm erg s^{-1}}) = 41.94^{+0.38}_{-0.23}$. The H$α$ luminosity density is $2.7^{+0.7}_{-0.6} \times 10^{39}$ ergs s$^{-1}$ Mpc$^{-3}$. After subtracting the AGN contribution (15 %) to the H$α$ luminosity density, the star formation rate density is evaluated as $1.8^{+0.7}_{-0.4} \times 10^{-2}$ $M_{\sun}$ yr$^{-1}$ Mpc$^{-3}$. The angular two-point correlation function of H$α$ emitting galaxies of $\log L({\rm Hα}) > 39.8$ is well fit by a power law form of $w(θ) = 0.013^{+0.002}_{-0.001} θ^{-0.88 \pm 0.03}$, corresponding to the correlation function of $ξ(r) = (r/1.9{\rm Mpc})^{-1.88}$. We also find that the H$α$ emitters with higher H$α$ luminosity are more strongly clustered than those with lower luminosity.
description: 13 pages, 9 fifgure, to apper in ApJS
Nonlinear Shear-free Radiative Collapse
Creators: name: Misthry, S. S.
name: Maharaj, S. D.
name: Leach, P. G. L.
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study realistic models of relativistic radiating stars undergoing gravitational collapse which have vanishing Weyl tensor components. Previous investigations are generalised by retaining the inherent nonlinearity at the boundary. We transform the boundary condition to an Abel equation of the first kind. A variety of nonlinear solutions are generated all of which can be written explicitly. Several classes of infinite solutions exist.
description: 13 pages, To appear in Math. Meth. Appl. Sci
Participation in voluntary organizations and status inconsistency
Creators: name: Knapen, Joseph Mathijs Peter
Publisher: name: University of British Columbia
Year: 2010

description: While it is an established fact that participation in voluntary organizations varies directly with social status, the more complex issue of the relationship between the pattern of individuals' rank positions in several status hierarchies and participation still remains unsettled. The purpose of this study is to reexamine Lenski's proposition that status inconsistency is an obstacle to participation in voluntary organizations. The reasoning behind this proposition is that people who have inconsistent, or unequally evaluated, statuses are often exposed to disturbing experiences in social interaction. They react to those experiences with a tendency to avoid or withdraw from certain forms of social intercourse, such as participation in voluntary organizations. It is therefore hypothesized that persons with inconsistent statuses have fewer memberships and are less likely to hold office in voluntary organizations than individuals whose statuses are consistent. The hypotheses are tested in a secondary analysis of survey data for samples of employed adults in two Canadian cities. The status dimensions are education, occupation, and income. Several status inconsistency variables are used, each defined in terms of different combinations of ranks on a pair of status dimensions. The analysis is guided by the assumption that a status inconsistency effect may be conceived as due to statistical interaction between the constituent status variables. Such effects might be present when an additive model of the relationships between two status variables and a given participation variable proves to fit the data inadequately. The analyses, using a dummy-variable multiple regression format, reveal that differences between observed values on the participation variables and the values predicted by a model of additive status effects are generally small and do not show the patterns expected under the hypotheses. Moreover, a nonadditive model, which includes a status inconsistency variable in addition to the two status variables from which it is formed, fails to explain even a moderate amount more variance in the dependent variables than the corresponding additive model. These results suggest that inconsistency between achieved socioeconomic statuses has no appreciable effect on membership or office-holding, over and above the effects of the status variables themselves. The conclusion is that the proposition of a negative association between status inconsistency and participation in voluntary organizations is not supported by the data of this research. It is suggested that these negative findings may be explained in part by dubious assumptions in the status inconsistency argument so far as it relates to participation and by methodological problems associated with identifying status inconsistency effects. However, the idea that frustrating and unpleasant social experiences may adversely affect participation in voluntary organizations is^ sensible and deserves further investigation.
Comparative study of Rare Gas-H$_2$ triatomic complexes
Creators: name: Barletta, Paolo
Publisher: name: arXiv
Year: 2008
Subjects: subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: This paper presents a comparative analysis of complexes made of one Rare Gas (Rg) atom and molecular hydrogen, for all five stable Rg atoms. In particular, the vibrational band origins have been calculated, as well as the structural properties of the associated wavefunctions. The study is extended to cold Rg-H$_2$ scattering. The molecular systems are studied variationally using a very simple, yet effective, trial wavefunction. A large number of Potential Energy Surfaces available from the literature is considered. A comparative analysis shows that differences of up to two orders of magnitude exist for the zero energy elastic cross sections of the five complexes. Corrections to the model have also been considered, showing no significant effect.
description: 22 pages, 3 figures, 4 tables, submitted for publication
Primordial Perturbations During a Slow Expansion
Creators: name: Piao, Yun-Song
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Recently, it has been showed that a slow expansion, which is asymptotically a static state in infinite past and may be described as an evolution with ε\ll -1, of early universe may lead to the generation of primordial perturbation responsible for the structure formation of observable universe. However, its feasibility depends on whether the growing mode of Bardeen potential before phase transition can be inherited by the constant mode of curvature perturbation after phase transition. In this note, we phenomenally regard this slow expansion as that driven by multi NEC violating scalar fields. We calculate the curvature perturbation induced by the entropy perturbation before phase transition, and find that the spectrum is naturally scale invariant with a slight red tilt. The result has an interesting similarity to that of slow roll inflation.
description: 5 pages, 1 eps figure, minor changes and refs. added, to publish in PRD
Majority Vote in Social Networks: Make Random Friends or Be Stubborn to Overpower Elites
Creators: name: Out, Charlotte
name: Zehmakan, Ahad N.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Social and Information Networks (cs.SI)
subject: Multiagent Systems (cs.MA)
subject: FOS: Computer and information sciences

description: Consider a graph $G$, representing a social network. Assume that initially each node is colored either black or white, which corresponds to a positive or negative opinion regarding a consumer product or a technological innovation. In the majority model, in each round all nodes simultaneously update their color to the most frequent color among their connections. Experiments on the graph data from the real world social networks (SNs) suggest that if all nodes in an extremely small set of high-degree nodes, often referred to as the elites, agree on a color, that color becomes the dominant color at the end of the process. We propose two countermeasures that can be adopted by individual nodes relatively easily and guarantee that the elites will not have this disproportionate power to engineer the dominant output color. The first countermeasure essentially requires each node to make some new connections at random while the second one demands the nodes to be more reluctant towards changing their color (opinion). We verify their effectiveness and correctness both theoretically and experimentally. We also investigate the majority model and a variant of it when the initial coloring is random on the real world SNs and several random graph models. In particular, our results on the Erdős-Rényi and regular random graphs confirm or support several theoretical findings or conjectures by the prior work regarding the threshold behavior of the process. Finally, we provide theoretical and experimental evidence for the existence of a poly-logarithmic bound on the expected stabilization time of the majority model.
description: Accepted to the International Joint Conference on Artificial Intelligence (IJCAI)
On the Correspondence between Poincaré Symmetry of Commutative QFT and Twisted Poincaré Symmetry of Noncommutative QFT
Creators: name: Abe, Yasumi
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The space-time symmetry of noncommutative quantum field theories with a deformed quantization is described by the twisted Poincaré algebra, while that of standard commutative quantum field theories is described by the Poincaré algebra. Based on the equivalence of the deformed theory with a commutative field theory, the correspondence between the twisted Poincaré symmetry of the deformed theory and the Poincaré symmetry of a commutative theory is established. As a by-product, we obtain the conserved charge associated with the twisted Poincaré transformation to make the twisted Poincaré symmetry evident in the deformed theory. Our result implies that the equivalence between the commutative theory and the deformed theory holds in a deeper level, i.e., it holds not only in correlation functions but also in (different types of) symmetries.
description: 13 pages, minor corrections, version to appear in Phys. Rev. D
КООРУПЦИЯГА    ҚАРШИ      КУРАШ – ИНСОН     ҚАДРИНИ                                              ШАКЛЛАНТИРИШ    МЕЗОНИ
Creators: name: Ҳамроқулова Дурдона Шерали қизи Термиз давлат университети Юридик факултети 1-босқич талабаси
Publisher: name: Zenodo
Year: 2023

description: Ушбу мақолада коррупсиянинг вужудга келиши ҳамда унинг турлари, хусусан, коррупсиянинг йўқолиши ҳамда унга қарши курашишда қонунчиликка таклифлар ва инсон омилининг аҳамияти ҳақида сўз боради

               Калит сўзлар: Коррупсия, жазо тизими, инсон омили, қонунчиликка таклиф, ҳукумат эшитуви, жамоатчилик назорати, манфаатлар тўқнашуви
The Effect of Direct-to- Reverberant Energy Ratio on Front-Back Confusion in Binaural Reproduction
Creators: name: Lee, Hyunkook
name: Johnson, Dale
name: Slawek Zielinski
Publisher: name: Zenodo
Year: 2021

description: Paper: https://ieeexplore.ieee.org/document/9610831 Abstract: The effect of direct-to-reverberant ratio (DRR) on front-back confusion in binaural reproduction was investigated. Binaural room impulse responses (BRIRs) of loudspeakers at 0° and 180° azimuths from the listening position were captured in an ITU-R BS.1116-3-compliant listening room (RT=0.25s) using a KU100 dummy head placed 2m away from each loudspeaker. The DRRs of the original BRIRs were manipulated by varying the levels of the reverberant parts (beyond 2.5ms after the direct sound) of the signals, producing BRIRs with DRRs ranging from -12 dB to 12 dB with 4 dB intervals for each source position, as well as a pseudo-anechoic HRIR condition. Five subjects participated in the initial listening test. Each front or back stimulus with a different DRR was presented 20 times in a random order and the subject’s task was to respond either Front or Back. From psychometric functions derived from the data collected, a consistent pattern was observed from all subjects in that a lower DRR (more reverberant) tended to cause a higher rate of front-to-back confusion, whereas a higher DRR produced a higher rate of back-to-front confusion. The DRR thresholds of discrimination were different between the front and rear located sources, and the region between the two thresholds is proposed as a transition region where an extreme chance of confusion can be avoided for both source positions.
In the Search for the Infinite Servers Queue with Poisson Arrivals Busy Period Distribution Exponential Behavior
Creators: name: Ferreira, Manuel Alberto M.
name: Filipe, José António
Publisher: name: arXiv
Year: 2021
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: This paper purpose is to investigate exponential behavior conditions for the infinite servers queue with Poisson arrivals busy period length distribution. It is presented a general theoretical result that is the basis of this work. The complementary analysis rely on the infinite servers queue with Poisson arrivals busy period length distribution moments computation. In infinite servers queue with Poisson arrivals practical applications, in economic, management, and business areas, the management of the effective number of servers is essential since the physical presence of infinite servers is not viable and so it is necessary to create that condition through an adequate management of the number of servers during the busy period.
description: 13 pages, 13 tables and no figures
Report on the observational potential of the TMAs
Creators: name: Berx, Bee
name: Cunningham, Stuart
name: Appen, Wilken-Jon
name: Atamanchuk, Dariia
name: Brown, Peter
name: Fraser, Neil
name: Hahn, Johannes
name: Jochumsen, Kerstin
name: Johnson, Claire
name: Jong, Femke
name: Karstensen, Johannes
name: King, Brian
name: Lankhorst, Matthias
name: Larsen, Karin M. H.
name: McDonagh, Elaine
name: Moritz, Martin
name: Yashayaev, Igor
Publisher: name: AtlantOS
Year: 2019

description: Assessment of the impact of upper-ocean measurements and of coherent integration of O2 measurements (as example for non-physical EOVs) for transports and fluxes in the Atlantic TMAs and synergies with the wider Atlantic Observing System. One workshop will be held to prepare the report and foster the cooperation on cross-TMA analyses
Comparison of Operating Force Required for Traditional Cinnamon (Cinnamomum zeylanicum) Peeling Processes with Respect to Diameter and Peelability of Sticks
Creators: name: K M T S Bandara
name: P L A G Alwis
name: B M S Jinendra
name: NK Hettiarachchi
name: KGG Wijesinghe
Publisher: name: figshare
Year: 2021
Subjects: subject: 70399 Crop and Pasture Production not elsewhere classified
subject: FOS: Agriculture, forestry and fisheries

description: Cinnamon peeling begins with scraping out the corky layer of matured cinnamon sticks followed by rubbing and removing of peel where skilled labor is essential. Majority of cinnamon producers still use traditional tools which are manufactured in village workshops without engineering design support. There are several shortcomings in mechanization of cinnamon peeling process due to uneven stem sizes and shape, different sizes of knots, coarseness of the outer corky layer and uneven bark thickness within the
same stick. Moreover, the mechanical force requirement varies seasonally within the same plantation. In the dry spell of the year, the bark adheres to the stem hard producing unpeelable sticks where peeling process demands more labor force than wet season. This causes either high cost of processing or inefficiency of the already introduced machines to the process, which leads leaving the plantation without harvesting. As such, lack of accurately estimated force components of three major processing steps namely scraping, rubbing and peeling for both peelable and unpeelable stick variations have been identified as one of the major limitations to develop scientific methodologies for process automation. Therefore, this work aimed to estimate the operating forces required for the three main events when the traditional processing equipment are in used. In this pursuit, seventy six cinnamon sticks pre-tested on the aspect of peelability were categorized under three main diameter classes to be used in the experiments. Scraping, rubbing and peeling forces were measured with processing equipment Kokatta, Brass rod and Peeling knife attached to a force gauge model SUNDOO – SH 500. The force changes at the beginning continuing and at the end of each stroke attributed to the varying pressure exerted on the sticks were graphically recorded at 10 data points per second rate. The average of recorded data of each stick
was considered as the force required for particular stick for the processing. The results of paired t-test revealed that the average rubbing force 27.98 ± 6.47 N and peeling force 6.766 ± 2.29N of unpeelable sticks were significantly higher (P = 0.00) than the respective forces (17.967 ± 3.1N, 3.134 ± 0.97N) of peelable sticks The average force requirement for scraping did not encounter a significant difference with regard to peelability variations.
A Riccati equation in radiative stellar collapse
Creators: name: Rajah, S. S.
name: Maharaj, S. D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We model the behaviour of a relativistic spherically symmetric shearing fluid undergoing gravitational collapse with heat flux. It is demonstrated that the governing equation for the gravitational behaviour is a Riccati equation. We show that the Riccati equation admits two classes of new solutions in closed form. We regain particular models, obtained in previous investigations, as special cases. A significant feature of our solutions is the general spatial dependence in the metric functions which allows for a wider study of the physical features of the model, such as the behaviour of the causal temperature in inhomogeneous spacetimes.
description: 13 pages, To appear in J. Math. Phys
Properties of A Class of Topological Phase Transition
Creators: name: Cai, Zi
name: Chen, Shu
name: Kou, Supeng
name: Wang, Yupeng
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The properties of a class of topological quantum phase transition (TQPT) are analyzed based on a model proposed by Haldane. We study the effect of finite temperature on this phase transition. We have found that finite temperature would drive this TQPT to be a crossover, while it is stable against the weak short range interaction. When the interaction is strong enough, however, this TQPT is unstable and other states would emerge. Then we investigate the effect of the on-site energy in the original haldane model. The critical difference between our TQPT and the topological phase transition in conventional quantum Hall system is discussed. Finally, we discuss the potential application of our analysis to a topological phase transition proposed in a realistic system.
description: 7 pages, 7 figures. Accepted by Phys. Rev. B
Learning De-identified Representations of Prosody from Raw Audio
Creators: name: Weston, Jack
name: Lenain, Raphael
name: Meepegama, Udeepa
name: Fristed, Emil
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: Machine Learning (cs.LG)
subject: Sound (cs.SD)
subject: Audio and Speech Processing (eess.AS)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: We propose a method for learning de-identified prosody representations from raw audio using a contrastive self-supervised signal. Whereas prior work has relied on conditioning models on bottlenecks, we introduce a set of inductive biases that exploit the natural structure of prosody to minimize timbral information and decouple prosody from speaker representations. Despite aggressive downsampling of the input and having no access to linguistic information, our model performs comparably to state-of-the-art speech representations on DAMMP, a new benchmark we introduce for spoken language understanding. We use minimum description length probing to show that our representations have selectively learned the subcomponents of non-timbral prosody, and that the product quantizer naturally disentangles them without using bottlenecks. We derive an information-theoretic definition of speech de-identifiability and use it to demonstrate that our prosody representations are less identifiable than other speech representations.
description: ICML 2021
Factor demands and output supply by the extractive firm : theory and estimation
Creators: name: Lasserre, Pierre
Publisher: name: University of British Columbia
Year: 2010

description: This dissertation deals with theoretical and empirical aspects of factor demand and output supply decisions of firms. In the theoretical part of the thesis, some major existing theories of investment are discussed and their formulation is extended to the case of firms which extract an exhaustible resource. Those theories are then incorporated into a model which exploits complementarities between some of them and can reflect some well-known hypotheses, such as the putty-clay hypothesis, as special cases. This model relies on a general notion of irreversibility: a decision is defined as irreversible if it introduces a new constraint to a firm. This constraint may be a non negativity constraint, but may also mean the appearance of costs of adjustments. Such an approach implies a distinction between ex ante phases and ex post phases in the life of firms, those phases being separated by the irreversible decisions. Two empirical applications are presented. The first one corresponds to the ex ante phase of the theoretical model, and deals with the capacity selection decision of some North-American open-pit metal mines. According to the evidence, this decision takes account of economic parameters, such as expected prices, as well as geological and technological parameters. The second empirical application correspond to the ex post phase of the theoretical model, and deals with the short-run production decisions of some mines. Both empirical studies provide support for the putty-clay hypothesis.
APPLYING USING ARTIFICIAL INTELLIGENCE IN HR PERFORMANCE: UAE PERSPECTIVE
Creators: name: AMAL ALMESAFRI
Publisher: name: Zenodo
Year: 2023
Subjects: Artificial Intelligence (AI), HR, UAE, Performance, AI Adoption.

description: Abstract

As organizations in the United Arab Emirates (UAE) strive to enhance their efficiency and competitiveness, the adoption of artificial intelligence (AI) in Human Resources (HR) management has gained significant attention. This paper explores the application of AI in HR performance within the unique context of the UAE, aiming to understand the challenges, opportunities, and implications for organizational success. The study reviews existing literature on AI in HR and synthesizes insights specific to the UAE's business landscape. The research methodology involves a combination of qualitative and quantitative approaches, including interviews with HR professionals, surveys, and case studies of organizations that have implemented AI in HR practices. Key findings highlight the transformative potential of AI in HR performance management, including talent acquisition, employee engagement, and workforce optimization. The analysis also considers the cultural and regulatory factors that shape AI adoption in the UAE, shedding light on the ethical considerations and potential challenges associated with the deployment of AI in HR. Ultimately, this study aims to inform HR leaders, policymakers, and business executives in the UAE about the opportunities and challenges associated with integrating AI into HR practices, fostering a strategic and informed approach to technology adoption for enhanced organizational performance and employee well-being.
The Paradox of Fiscal Imbalances in India
Creators: name: Mahamallik, Motilal
name: Sahu, Pareswar
name: Mahapatra, Sushanta
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2014
Subjects: SECS-P/01 Economia politica

description: An attempt has been made to examine the nature and extent of fiscal imbalances in India using the secondary data over a period of thirty years from 1980-81 to 2009-10 (BE). It has been established that there is persistence and growing vertical as well as horizontal fiscal imbalances even after a series of corrective fiscal measures. Efforts to reduce these imbalances found to be ineffective due to contradictions among different measures of fiscal correction. Methodologies adopted to maintain equity contradict with methodologies used to increase efficiency. The 14th finance commission may take initiative to resolve this paradox through a ‘weight adjustment solution’ which can be helpful in reducing the imbalances. In addition to it, adequate generations of revenue through increasing tax efforts on the part of states and reform in the transfer system are essential for maintaining fiscal balances.
Generic features of Einstein-Aether black holes
Creators: name: Tamaki, Takashi
name: Miyamoto, Umpei
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We reconsider spherically symmetric black hole solutions in Einstein-Aether theory with the condition that this theory has identical PPN parameters as those for general relativity, which is the main difference from the previous research. In contrast with previous study, we allow superluminal propagation of a spin-0 Aether-gravity wave mode. As a result, we obtain black holes having a spin-0 "horizon" inside an event horizon. We allow a singularity at a spin-0 "horizon" since it is concealed by the event horizon. If we allow such a configuration, the kinetic term of the Aether field can be large enough for black holes to be significantly different from Schwarzschild black holes with respect to ADM mass, innermost stable circular orbit, Hawking temperature, and so on. We also discuss whether or not the above features can be seen in more generic vector-tensor theories.
description: 9 pages, 9 figures, basic equations and their analytic arguments are added
The Impact of Electric Cars on Oil Demand and Greenhouse Gas Emissions in Key Markets
Creators: name: Gómez Vilchez, Jonatan J.
Publisher: name: Karlsruhe
Year: 2019
Subjects: electric cars
system dynamics
market uptake
simulation
energy demand

description: This thesis explores the extent to which electric cars might reduce oil demand and greenhouse gas emissions in key markets: China, France, Germany, India, Japan and the United States. To meet this objective, a dynamic model capable of simulating the market evolution of nine powertrain technologies between 2000 and 2030 is developed.
The model consists of an econometric sub-model, soft-linked with a system dynamics sub-model. The purpose of the time-series econometric sub-model is to project country-specific total car stock. To this end, six single-equation regressions based on autoregressive integrated moving average or autoregressive distributed-lag techniques are estimated. The purpose of the system dynamics sub-model is to represent feedback processes and facilitate policy analysis. The effects of six policy measures are examined: emission standards, energy taxation, electric car purchase subsidies, investment in recharging stations, investment in hydrogen refuelling infrastructure and desired car occupancy. The dynamic hypothesis of the model captures feedback loops that may stimulate the market development of electric cars. The six countries are interlinked to simulate technological progress concerning the electric vehicle battery. In particular, its cost, price and capacity, together with the resulting electric range of the car, are investigated. Two scenarios are constructed: under the Alternative Scenario, the market uptake of electric cars is faster due to a favourable policy package. This leads to a decline in oil demand and direct greenhouse gas emissions as well as to an increase in electricity demand from cars compared to the Reference Scenario.
The methodological linkage of econometrics and system dynamics, together with the endogenisation of the electric vehicle battery price evolution by explicitly modelling six major car markets, is the main contribution of this study. Its major limitations prompt further research on the representation of supply-side aspects (i.e. battery and vehicle manufacturers) using alternative methods such as agent-based modelling.
Numerical homogenization of time-dependent Maxwell's equations with dispersion effects
Creators: name: Freese, Jan Philip
Publisher: name: Karlsruher Institut für Technologie (KIT)
Year: 2021
Subjects: Maxwell equations
Sobolev equations
dispersion
homogenization
finite element method
heterogeneous multiscale method
time-integration
recursive convolution
error estimates

description: This thesis studies the propagation of electromagnetic waves in heterogeneous structures such as metamaterials. The governing equations for this problem are Maxwell's equations with highly oscillatory parameters. We use an analytic homogenization result which yields an effective Maxwell system that involves a convolution integral. This convolution represents dispersive effects that result from the interaction of the wave with the (locally) periodic microscopic structure. We discretize in space using the Finite Element Heterogeneous Multiscale Method (FE-HMM) and provide a semi-discrete error estimate. The rigorous error analysis in space is supplemented by a rather standard time discretization at the end of which an efficient, fully discrete method is proposed. This method uses a recursive approximation of the convolution that relies on the assumption that the convolution kernel is an exponential function. Eventually, we present numerical experiments both for the microscopic and the macroscopic scale.
Red- and blue-detuned magneto-optical trapping with liquid crystal variable retarders
Creators: name: Piest, Baptist
name: Vollenkemper, Vera
name: Böhm, Jonas
name: Herbst, Alexander
name: Rasel, Ernst M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We exploit red- and blue-detuned magneto optical trapping (MOT) of $^{87}$Rb benefitting from a simplified setup based on liquid crystal variable retarders (LCVR). To maintain the trapping forces when switching from a red- to a blue-detuned MOT, the circularity of the cooling beams needs to be reversed. LCVRs allow fast polarization control and represent compact, simple and cost-efficient components which can easily be implemented in existing laser systems. This way, we achieve a blue-detuned type-II MOT for $^{87}$Rb atoms with sub-Doppler temperatures of 44.5 $μ$K. The phase space density is increased by more than two orders of magnitude compared to the standard red-detuned type-I MOT. The setup can readily be transferred to any other system working with $^{87}$Rb.
Localizing Objects with Self-Supervised Transformers and no Labels
Creators: name: Siméoni, Oriane
name: Puy, Gilles
name: Vo, Huy V.
name: Roburin, Simon
name: Gidaris, Spyros
name: Bursuc, Andrei
name: Pérez, Patrick
name: Marlet, Renaud
name: Ponce, Jean
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Localizing objects in image collections without supervision can help to avoid expensive annotation campaigns. We propose a simple approach to this problem, that leverages the activation features of a vision transformer pre-trained in a self-supervised manner. Our method, LOST, does not require any external object proposal nor any exploration of the image collection; it operates on a single image. Yet, we outperform state-of-the-art object discovery methods by up to 8 CorLoc points on PASCAL VOC 2012. We also show that training a class-agnostic detector on the discovered objects boosts results by another 7 points. Moreover, we show promising results on the unsupervised object discovery task. The code to reproduce our results can be found at https://github.com/valeoai/LOST.
O`QUVCHI YOSHLARDA INSONIYLIKNING OLIJANOB FAZILATLARINI SHAKLLANTIRISH USULLARI
Creators: name: Abdulazizova Navruza AVPYMO'MM Tillarni o'qitish metodikasi kafedrasi o'qituvchisi
Publisher: name: Zenodo
Year: 2023

description: Maqolada   o`quvchi yoshlar tarbiyasida vatanparvarlik, mehnatsevarlik va   insoniylikning olijanob fazilatlarini shakllantirishga qaratilgan omillar , natijaviy usullar, amalga oshirilishi zarur bo‘lgan amaliy ko‘rsatmalar berilgan bo‘lib, fan o‘qituvchilariga amalda qo‘llash imkonini beradi.

Kalit so`zlar: Insoniylik, tarbiya,  g‘alaba cho‘qqisi , ta’lim tizimi, ezgulik g‘oyasi,  intelektuval, islohat. blits, zinama-zina.
Clearing the Dust from Globular Clusters
Creators: name: Umbreit, Stefan
name: Chatterjee, Sourav
name: Rasio, Frederic A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Recent Spitzer observations of the globular cluster M15 detected dust associated with its intracluster medium. Surprisingly, these observations imply that the dust must be very short-lived compared to the time since the last Galactic plane crossing of the cluster.Here we propose a simple mechanism to explain this short lifetime. We argue that the kinetic energy of the material ejected during a stellar collision may be sufficient to remove the gas and dust entirely from a cluster, or to remove the gas as a wind, in addition to partially destroying the dust. By calculating the rate of stellar collisions using an N-body model for the cluster, we find remarkable agreement between the average time between collisions and the inferred dust lifetime in this cluster, suggesting a possible close relation between the two phenomena. Furthermore, we also obtain the birthrate of blue stragglers formed through collisions in M15. By comparing with the observed number of blue stragglers, we derive an upper limit for their average lifetime which turns out to be consistent with recent model calculations, thereby lending further support to our model.
description: 4 pages, 1 figure, to appear in ApJ Letters
Revista ORINOCO
Creators: name: Revista Orinoco
name: Vargas, Leonardo Maestre
name: Rodriguez, Francisco
name: Hurtado, Eladia
Publisher: name: figshare
Year: 2021
Subjects: subject: Education
subject: Sociology
subject: FOS: Sociology
subject: Anthropology
subject: 160101 Anthropology of Development
subject: 160201 Causes and Prevention of Crime
subject: FOS: Law
subject: 160602 Citizenship
subject: FOS: Political science
subject: 160603 Comparative Government and Politics
subject: 160202 Correctional Theory, Offender Treatment and Rehabilitation
subject: 160504 Crime Policy
subject: 160204 Criminological Theories
subject: 160505 Economic Development Policy
subject: 160301 Family and Household Studies
subject: 169901 Gender Specific Studies
subject: 160609 Political Theory and Political Philosophy
subject: 160305 Population Trends and Policies
subject: 160510 Public Policy
subject: 160805 Social Change
subject: 160512 Social Policy
subject: 160703 Social Program Evaluation
subject: 160806 Social Theory
subject: 160807 Sociological Methodology and Research Methods
subject: 160809 Sociology of Education
subject: 160810 Urban Sociology and Community Studies
subject: 180102 Access to Justice

description: Revista Orinoco Pensamiento y Praxis, multidisciplinaria de investigación social, de acceso abierto. Arbitrada, indexada en catálogos de LATINDEX, LATINREV y DIALNET. Ppi201202BO3993 -ISSN: 22448314. Ciudad Bolívar / República Bolivariana de Venezuela.Editada por el Fondo Editorial ORINOCO Pensamiento y praxis de la Asociación Fraternidad y Orientación Activa (ONG AFOA) - ASOCIACIÓN CIVIL SIN FINES DE LUCRO- RIF.- J-403372659) -Contacto: revistaorinocopensamientoyp@gmail.com
FINE ARTS IN SUGHD IN THE EARLY MIDDLE AGES
Creators: name: Researcher of Samarkand State University named after Sharaf Rashidov J. Turdialiev
Publisher: name: Zenodo
Year: 2023

description: Before Central Asia came under the influence of the Arab Caliphate, visual and applied arts were developed in the region. Especially in Sughd, it is known that high results were achieved in architecture, painting, sculpture, stone and wood carving, calligraphy, music and other arts. This is confirmed by the discovery and research of the ruins of Kafirkala, Afrosiyab, Varakhsha, and Panjikent . ­Among these, the ruins of Panjikent, the center of the early medieval Panch principality, show the development of various artistic styles in this region.

Key words: Art, Afrosiyab, Panjikent, Vaarakhsha, Kafirkala, early Middle Ages becomes more clear.
Anomalies and Hawking radiation from the Reissner-Nordström black hole with a global monopole
Creators: name: Wu, Shuang-Qing
name: Peng, Jun-Jin
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: We extend the work by S. Iso, H. Umetsu and F. Wilczek [Phys. Rev. Lett. 96 (2006) 151302] to derive the Hawking flux via gauge and gravitational anomalies of a most general two-dimensional non-extremal black hole space-time with the determinant of its diagonal metric differing from the unity ($\sqrt{-g} \neq 1$) and use it to investigate Hawking radiation from the Reissner-Nordstrom black hole with a global monopole by requiring the cancellation of anomalies at the horizon. It is shown that the compensating energy momentum and gauge fluxes required to cancel gravitational and gauge anomalies at the horizon are precisely equivalent to the $(1+1)$-dimensional thermal fluxes associated with Hawking radiation emanating from the horizon at the Hawking temperature. These fluxes are universally determined by the value of anomalies at the horizon.
description: 18 pages, 0 figure. 1 footnote and 4 new reference added
Convectively coupled equatorial trapped waves in stars and planets
Creators: name: Cai, Tao
name: Yu, Cong
name: Wei, Xing
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: In this paper, we have studied the convectively coupled equatorially trapped waves in rotating stars, with and without magnetic field. The equatorial trapped HD and MHD Poincaré, Rossby, mixed Rossby-Poincaré, and Kelvin waves were identified. The effects of stratification and non-traditional Coriolis force terms have been investigated. When the flow is strongly stratified, the wave frequencies of the convectively coupled model are almost the same as those of shallow water model. However, when the flow is weakly stratified, the wave frequencies are constrained by the buoyancy frequency. The non-traditional Coriolis terms affect the widths and phases of the equatorial waves. The width increases with the increasing non-traditional Coriolis parameter. Phase shift occurs when the non-traditional Coriolis parameter is included. Magnetic effect is significant when the magnetic field is strong. We have applied the model in the solar atmosphere and solar tachocline to explain the Rieger type periodicities. For the solar atmosphere, when magnetic effect is taken into account, we find that the magnetic field should be smaller than $5G$ in the solar photosphere. Otherwise, the Rieger type periodicities can be only attributed to long Rossby waves. For the solar tachocline, we find that magnetic field of the solar tachocline should be smaller than $50kG$ to observe the 160 days Rieger period. In addition, we find that the effect of the non-traditional Coriolis terms is not obvious in the solar photosphere, but its effect on the tachocline is significant.
description: published at ApJ
Turbinaria ornata J. Agardh 1848
Creators: name: Chakraborty, Kajal
name: Dhara, Shubhajit
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Chromista
Ochrophyta
Phaeophyceae
Fucales
Sargassaceae
Turbinaria
Turbinaria ornata

description: 2.3. Bioactive potentials of the spiroketals isolated from T. ornata
Spirornata A showed noticeably greater ACE-I inhibitory property (IC 50 4.55 μM) compared to those exhibited by spirornata B (IC 50 4.72 μM) and C (IC 50 4.86 μM), as well as comparable activity with the standard ACE-I inhibitor, captopril (IC 50 4.29 μM) (Table 2). The electronegative groups in the oxodecahydrospiro [furo-3,4-c] pyran-7, 2 ʹ - pyranyl framework along with the esterified side chain in spirornata A could evidently form hydrogen bonding interfaces with the aminoacyl residues in the active site of ACE-I, and might form co-ordinate bond with the binding site Zn 2+ ion. Conspicuously greater number of electronegative centers in spirornata A might lead to its greater antihypertensive activity. Also, free radical quenching activities (IC 50DPPH 1.14 and IC 50ABTS 1.28 mM) exhibited by spirornata A were greater when compared to those exhibited by other analogues (IC 50 1.25–1.71 mM) and commercially available standard (IC 50 1.46–1.69 mM). Previoius reports of antioxidant activities of spiroketals (Zhuravleva et al., 2014) also corroborated the antioxidant activities of currently isolated spiroketals.
description: Published as part of Chakraborty, Kajal & Dhara, Shubhajit, 2022, Spirornatas A-C from brown alga Turbinaria ornata: Anti-hypertensive spiroketals attenuate angiotensin-I converting enzyme, pp. 1-10 in Phytochemistry (113024) (113024) 195 on page 5, DOI: 10.1016/j.phytochem.2021.113024, http://zenodo.org/record/8194471