cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Thermodynamics of Asymptotically Locally AdS Spacetimes
Creators: name: Papadimitriou, Ioannis
name: Skenderis, Kostas
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We formulate the variational problem for AdS gravity with Dirichlet boundary conditions and demonstrate that the covariant counterterms are necessary to make the variational problem well-posed. The holographic charges associated with asymptotic symmetries are then rederived via Noether's theorem and `covariant phase space' techniques. This allows us to prove the first law of black hole mechanics for general asymptotically locally AdS black hole spacetimes. We illustrate our discussion by computing the conserved charges and verifying the first law for the four dimensional Kerr-Newman-AdS and the five dimensional Kerr-AdS black holes.
description: 55 pages; v2 one reference added, few signs corrected, version to appear in JHEP; v3 corrected minor typos and acknowledgements
Lepton Mass Hierarchy and Neutrino Mixing
Creators: name: Fritzsch, Harald
name: Xing, Zhi-zhong
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We speculate that the mass spectrum of three neutrinos might have a normal hierarchy as that of three charged leptons or that of three up-type (or down-type) quarks. In this spirit, we propose a novel parametrization of the $3\times 3$ lepton flavor mixing matrix. Its mixing angles $θ_l$ and $θ_ν$ can be related to the mass ratios $m_e/m_μ$ and $m_1/m_2$ in a specific texture of lepton mass matrices with vanishing (1,1) elements: $\tanθ_l = \sqrt{m_e/m_μ}$ and $\tanθ_ν= \sqrt{m_1/m_2}$. The latter relation, together with solar and atmospheric neutrino oscillation data, predicts 0.0030 eV $\lesssim m_1 \lesssim$ 0.0073 eV, 0.009 eV $\lesssim m_2 \lesssim $ 0.012 eV and 0.042 eV $\lesssim m_3 \lesssim$ 0.058 eV. The smallest neutrino mixing angle is found to be $θ_{13} \approx θ_l/\sqrt{2} \approx 3^\circ$, which is experimentally accessible in the near future.
description: RevTex 10 pages, 2 figures
Fixman problem revisited: When fluctuations of inflated ideal polymer loop are non-Gaussian?
Creators: name: Nechaev, Sergei
name: Valov, Alexander
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We consider statistics of a planar ideal polymer loop of length $L$ in a large deviation regime, when a gyration radius, $R_g$, is slightly less than the radius of a fully inflated ring, $\frac{L}{2π}$. Specifically, we study analytically and via off-lattice Monte-Carlo simulations relative fluctuations of chain monomers in ensemble of Brownian loops. We have shown that these fluctuations in the regime with fixed large gyration radius are Gaussian with the critical exponent $γ= \frac{1}{2}$. However, if we insert inside the inflated loop the impenetrable disc of radius $R_d=R_g$, the fluctuations become non-Gaussian with the critical exponent $γ=\frac{1}{3}$ typical for the Kardar-Parisi-Zhang universality class.
description: 11 pages, 3 figures
Wasa at Cosy
Creators: name: Schadmand, S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The Wide Angle Shower Apparatus (WASA) has been transferred from the storage ring CELSIUS (TSL, Uppsala, Sweden) to the cooler synchrotron COSY (FZ Juelich, Germany). In this presentation, the status and planning of the WASAatCOSY project are reported. The main physics aspects are rare decays of eta and eta' mesons and isospin violation in deuteron-deuteron interactions.
description: Proceedings of the ETA05 Workshop, Krakow, 16-18 September 2005. submitted to Acta Physica Slovaca
ECONOMICS IN THE DESIGN, ASSESSMENT, ADOPTION, AND POLICY ANALYSIS OF I.P.M.
Creators: name: Swinton, Scott M.
name: Day, Esther
name: Swinton, Scott M.
name: Day, Esther
Publisher: name: Unknown
Year: 2000
Subjects: Crop Production/Industries

description: During the past twenty years, economics has played a key role in technology assessment and policy analysis related to integrated pest management (IPM) practices. The paper reviews economic analysis of IPM as applied to evaluating expected profitability, ex ante and ex post adoption, social welfare impacts, returns to research, and policies that affect pest management generally. In specific cases, economic methods have contributed significantly to the development of threshold-based IPM decision support software. Two areas that need greater economic input are assessment of biological pest management practices and the measurement of returns to research in IPM.
Quantum simulation with fully coherent dipole--dipole-interactions mediated by three-dimensional subwavelength atomic arrays
Creators: name: Brechtelsbauer, Katharina
name: Malz, Daniel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum simulators employing cold atoms are among the most promising approaches to tackle quantum many-body problems. Nanophotonic structures are widely employed to engineer the bandstructure of light and are thus investigated as a means to tune the interactions between atoms placed in their vicinity. A key shortcoming of this approach is that excitations can decay into free photons, limiting the coherence of such quantum simulators. Here, we overcome this challenge by proposing to use a simple cubic three-dimensional array of atoms to produce an omnidirectional bandgap for light and show that it enables coherent, dissipation-free interactions between embedded impurities. We show explicitly that the band gaps persist for moderate lattice sizes and finite filling fraction, which makes this effect readily observable in experiment. Our work paves the way toward analogue spin quantum simulators with long-range interactions using ultracold atomic lattices, and is an instance of the emerging field of atomic quantum metamaterials.
description: 13 pages, 8 figures
Editorial do n.º normal de dezembro da Revista Online Indagatio Didactica
Creators: name: Cabrita, Isabel
Publisher: name: Indagatio Didactica
Year: 2021

description: Os nove artigos que compõem a presente edição da Revista Online Indagatio Didactica inscrevem-se nas rubricas Outros olhares (dois artigos), Supervisão (um artigo), Avaliação em Educação (um artigo) e Tecnologias da Informação em Educação (cinco artigos).
description: Indagatio Didactica, vol. 13 n.º 5 (2021)
Academic contest as a tool for development of desired graduate characteristics
Creators: name: Wittaya Siricheepchaiyan
Publisher: name: F1000 Research Limited
Year: 2024

description: PLAI is mnemonic for desired graduate characteristics of Siam University that is the second private medical school in Thailand. PLAI: Professionalism-Leadership and collaboration-Active and lifelong learning-Internationalization, this study investigated to assess and develop desired graduate characteristics in clinical year medical students via academic contest-based learning at Pranangklao Hospital, Nonthaburi Province, Thailand. At the end of the study, the academic contest was successful in comprehension and improvement of desired graduate characteristics in clinical year medical students. This method could be a powerful learning tool to develop and improve knowledge, skills, and attitudes as required attributes. Desired graduate characteristics might be developed and improved by the academic contest-based learning method.
Kinetics of target site localization of a protein on DNA: a stochastic approach
Creators: name: Coppey, M.
name: Benichou, O.
name: Voituriez, R.
name: Moreau, M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Subcellular Processes (q-bio.SC)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: It is widely recognized that the cleaving rate of a restriction enzyme on target DNA sequences is several orders of magnitude faster than the maximal one calculated from the diffusion--limited theory. It was therefore commonly assumed that the target site interaction of a restriction enzyme with DNA has to occur via two steps: one--dimensional diffusion along a DNA segment, and long--range jumps coming from association/dissociation events. We propose here a stochastic model for this reaction which comprises a series of 1D diffusions of a restriction enzyme on non-specific DNA sequences interrupted by 3D excursions in the solution until the target sequence is reached. This model provides an optimal finding strategy which explains the fast association rate. Modeling the excursions by uncorrelated random jumps, we recover the expression of the mean time required for target site association to occur given by Berg & al. \cite{berg81}, and we explicitly give several physical quantities describing the stochastic pathway of the enzyme. For competitive target sites we calculate two quantities: processivity and preference. By comparing these theoretical expressions to recent experimental data obtained for \textit{Eco}RV--DNA interaction, we quantify: i) the mean residence time per binding event of \textit{Eco}RV on DNA for a representative 1D diffusion coefficient, ii) the average lengths of DNA scanned during the 1D diffusion (during one binding event and during the overall process), iii) the mean time and the mean number of visits needed to go from one target site to the other. Further, we evaluate the dynamics of DNA cleavage with regard to the probability for the restriction enzyme to perform another 1D diffusion on the same DNA substrate following a 3D excursion.
description: 10 pages, 8 figures
UNDERSTANDING THE DEMAND FOR FARMLAND PRESERVATION: IMPLICATIONS FOR MICHIGAN POLICIES
Creators: name: Norris, Patricia E.
name: Deaton, Brady J.
name: Norris, Patricia E.
name: Deaton, Brady J.
Publisher: name: Unknown
Year: 2001
Subjects: Land Economics/Use

description: The diversity of opinion on farmland preservation suggests that a close look at the issue is warranted as state and local governments consider how best to preserve the state's farmland resource. Public support for farmland preservation programs will be required if those programs are to be successful and will only be forthcoming if there is greater agreement about questions that underlie the policy debate. These questions include whether farmland loss is occurring, whether farmland preservation is needed, how farmland preservation programs should be designed, and what farmland should be preserved. This paper discusses each of these issues, in turn, and describes how current Michigan farmland preservation efforts are or are not addressing them.
Bulk emission of scalars by a rotating black hole
Creators: name: Casals, M.
name: Dolan, S. R.
name: Kanti, P.
name: Winstanley, E.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study in detail the scalar-field Hawking radiation emitted into the bulk by a higher-dimensional, rotating black hole. We numerically compute the angular eigenvalues, and solve the radial equation of motion in order to find transmission factors. The latter are found to be enhanced by the angular momentum of the black hole, and to exhibit the well-known effect of superradiance. The corresponding power spectra for scalar fields show an enhancement with the number of dimensions, as in the non-rotating case. We compute the total mass loss rate of the black hole for a variety of black-hole angular momenta and bulk dimensions, and find that, in all cases, the bulk emission remains significantly smaller than the brane emission. The angular-momentum loss rate is also computed and found to have a smaller value in the bulk than on the brane. We present accurate bulk-to-brane emission ratios for a range of scenarios.
description: 31 pages, 14 figures, minor changes, published in JHEP
Momentum Kicks in Imperfect Which-Way Measurement
Creators: name: Pathania, Neha
name: Qureshi, Tabish
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: There has been an intense debate on the question as to whether a quanton, passing through a double-slit, experiences a 'momentum kick' due to the act of which-way detection. There have been conflicting points of view on this issue over many decades. This issue is addressed here in the general setting where the which-way detection may be imperfect. It is shown here that the loss of interference may still be interpreted as arising out of tiny momentum kicks which the quanton appears to receive, irrespective of the nature of the which-way detector. Interestingly, the magnitude of the random momentum kicks is always h/2d, d being the slit separation, irrespective of how perfect or imperfect the which-way detection is. This is contrary to what has been suggested in the earlier literature. The imperfection of which-way detection decides how frequent are the momentum kicks. It has been shown earlier that for perfect which-way detection, the quanton receives a momentum kick fifty percent of the time. Here it is shown that for imperfect which-way detection, the quanton receives momentum kicks of the same magnitude, but less often. A precise relation between the frequency of kicks and the visibility of interference is found here.
description: 6 pages
CYCLICAL CONCENTRATION AND BIOTECH R&D ACTIVITY: A NEO-SCHUMPETERIAN MODEL
Creators: name: Oehmke, James F.
name: Wolf, Christopher A.
name: Weatherspoon, Dave D.
name: Naseem, Anwar
name: Maredia, Mywish K.
name: Raper, Kellie Curry
name: Hightower, Amie L.
name: Oehmke, James F.
name: Wolf, Christopher A.
name: Weatherspoon, Dave D.
name: Naseem, Anwar
name: Maredia, Mywish K.
name: Raper, Kellie Curry
name: Hightower, Amie L.
Publisher: name: Unknown
Year: 1999
Subjects: Research and Development/Tech Change/Emerging Technologies

description: Several characteristics of biotech industry structure follow cyclical patterns. Mergers and acquisitions activity shows cyclical behavior, with peaks from 1988-92 and 1996-97 and a valley from 1993-95. The ratio of large-firm to small-firm field trials, and the Herfindahl-Hirshmann concentration index, move pro-cyclically with M&A activity. This paper develops a formal, dynamic, neo-Schumpeterian model of endogenous R&D and innovation. The model generalizes and extends the literature on biotech industry concentration. For specified parameter values, the out-of-steady-state dynamics are examined, and shown to generate model behavior which is consistent with empirical descriptions of biotech concentration and R&D-activity cycles.
AN ANALYSIS OF THE IMPORTANCE OF AGRICULTURE AND THE FOOD SECTOR TO THE MICHIGAN ECONOMY
Creators: name: Ferris, John N.
name: Ferris, John N.
Publisher: name: Unknown
Year: 2000
Subjects: Community/Rural/Urban Development

description: The number of workers on farms and in food processing represents about 16 percent of total employment in basic industries in Michigan. Converting farm labor to full time equivalents, however, reduces the proportion to about 11 percent. The industries dependent upon agriculture and food processing enhance the importance of this sector. Adding backward linked industries increases the total employment from about 100 thousand to 200 thousand and output from $15 billion to $27 billion. If Michigan agriculture's share of the forward linked industries of wholesaling and retailing is added, total employment related directly or indirectly to farming and food processing is estimated to be 500 thousand and output to be $37 billion. In terms of employment, this represents a ratio of nearly 10 jobs for every full time equivalent in farming or about 5 jobs for every employee in the combination of agriculture and food processing. The total direct and related employment in agriculture and the food system is about 1 million, about a fourth of total employment in the state. Not only does agriculture and food processing have a major presence in the state, this sector contributes to the stability of an economy heavily dependent on the manufacture of durable goods which are vulnerable to business cycles. Food processing tends to be located near metropolitan areas, facilitating employment shifts. Similarly, the proximity of alternative employment opportunities provides stability for households involved in agriculture and food processing. While gross farm income and expenditures have increased in nominal terms, trends in the 1980s and 1990s have been stable or negative in real terms. Real net farm income declined in the 1990s. However, both nominal and real farmland prices increased in the same period, a paradox reflecting a robust non-farm economy and the close rural-urban interface. Value added by Michigan food processors increased over time in both nominal and real terms until a reversal in the 1990s. Employment in food processing continued a secular decline at the close of the decade.
Il Cash Flow. Efficace Strumento di Analisi di Bilancio
Creators: name: Mella, Piero
name: Navaroni, Matteo
Publisher: name: ----
Year: 2015
Subjects: Cash flow d’esercizio, Cash flow operativo lordo, rendiconto finanziario, bilanciamento fontiimpieghi.

description: Various forms of cash flow, and their respective representations in the financial statements, represent the best explanatory force in providing the reader strong information related to the company's ability to create a positive cash flow resulting from the current management processes and/or investment/financing processes. The analysis of cash flow also allows the analyst to verify the existence of proper financial balance between sources of raising investment and the use of the same.

Le varie forme di cash flow, e le loro rispettive rappresentazioni documentali nei rendiconti finanziari, rappresentano la miglior forza esplicativa nel fornire al lettore gli elementi inerenti la capacità di creazione da parte dell’azienda di un flusso di cassa positivo derivante dallo svolgimento dei processi della gestione corrente e/o derivante processi della gestione degli investimenti/finanziamenti. L’analisi del cash flow permette inoltre all’analista di verificare l’esistenza del corretto equilibrio finanziario tra le fonti di reperimento del capitale investito e l’impiego dello stesso.
description: ----, Vol 6, No 3 (2015): Issue 3 - 2015
Marine reserves for the northern cod
Creators: name: Guénette, Sylvie
Publisher: name: University of British Columbia
Year: 2009

description: In the midst of several management failures, marine reserves are seen as a potential management tool to control overexploitation. In the literature, both modelling and empirical work have demonstrated that closing an area to fishing would lead to an increase in biomass and mean body size within the reserve. Benefits, in the form of increased catch, outside the reserves are sometimes shown using modelling, but the assessment of such benefits in nature is more difficult. Home range and migration rate of the targeted species are important factors to consider in the establishment of a reserve. A few cases convincingly point at the importance of the source of larvae and the direction and rate of dispersal. Reserves could also be used as a hedge against uncertainty and management mistakes by limiting fishing mortality. This study is intended to evaluate the possibility of using marine reserves to control fishing mortality for northern cod, a migrating fish. A simple dynamic pool model emphasized the importance of including stock recruitment relationship to properly assess reserves benefits. By protecting a part of the spawners, the system containing a reserve was more resilient than the control (no-reserve). However, these results were probably overly optimistic because the proportion of fish staying within the reserve was overestimated. An age- and spatially-structured model was then built to mimic the historical evolution of fishing and stock collapse of the northern cod, offshore Newfoundland. The model included four stocks, migrations, and range dynamics. Fishers were assumed to show hunting behaviour to various degree depending on the gear used. In the first version of the model had to increase catchability as cod biomass decreased. The second model used effort profiles based on documented qualitative and quantitative changes in fishing capacity and effort. In both cases, results showed that very large marine reserves (80%) by themselves could have hedge against mismanagement, while a 50% reserve would have only slowed the decrease of the cod population. The results also suggest that adding seasonal closures could help control fishing mortality although possible temporal effort displacement was not investigated. The principal benefits of seasonal closures would be to protect the spawning aggregations rather than controlling fishing mortality. Every management scenario that was efficient at controlling fishing mortality implied decreasing the catch before the stock started rebuilding. Marine reserves could be used as an additional management tool along with other measures limiting the range of action of the fishery. For example, banishment or severe restrictions on gears allowed in the fishery could limit the geographical range of the fishery and help control fishing mortality.
Self-organization effects and light amplification of collective atomic recoil motion in a harmonic trap
Creators: name: Zhang, L.
name: Yang, G. J.
name: Xia, L. X.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Self-organization effects related to light amplification in the collective atomic recoil laser system with the driven atoms confined in a harmonic trap are investigated further. In the dispersive parametric region, our study reveals that the spontaneously formed structures in the phase space contributes an important role to the light amplification of the probe field under the atomic motion being modified by the trap.
description: Revtex4, 7 pages, 9 figures, revised version, to be published on J. Opt. B
Universal separability criterion for arbitrary density matrices from causal properties of separable and entangled quantum states
Creators: name: Skorobagatko, Gleb A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: General physical background of Peres-Horodecki positive partial transpose (ppt-) separability criterion is revealed. Especially, the physical sense of partial transpose operation is shown to be equivalent to the "local causality reversal" (LCR-) procedure for all separable quantum systems or to the uncertainty in a global time arrow direction in all entangled cases. Using these universal causal considerations the heuristic causal separability criterion has been proposed for arbitrary $ D^{N} \times D^{N}$ density matrices acting in $ \mathcal{H}_{D}^{\otimes N} $ Hilbert spaces which describe the ensembles of $ N $ quantum systems of $ D $ eigenstates each. Resulting general formulas have been then analyzed for the widest special type of one-parametric density matrices of arbitrary dimensionality, which model equivalent quantum subsystems being equally connected (EC-) with each other by means of a single entnaglement parameter $ p $. In particular, for the family of such EC-density matrices it has been found that there exists a number of $ N $- and $ D $-dependent separability (or entanglement) thresholds $ p_{th}(N,D) $ which in the case of a qubit-pair density matrix in $ \mathcal{H}_{2} \otimes \mathcal{H}_{2} $ Hilbert space are shown to reduce to well-known results obtained earlier by Peres [5] and Horodecki [6]. As the result, a number of remarkable features of the entanglement thresholds for EC-density matrices has been described for the first time. All novel results being obtained for the family of arbitrary EC-density matrices are shown to be applicable for a wide range of both interacting and non-interacting multi-partite quantum systems, such as arrays of qubits, spin chains, ensembles of quantum oscillators, strongly correlated quantum many-body systems with the possibility of many-body localization, etc.
description: 31 pages, 4 figures
Analysis of Key Non-Dairy Provisions of the Farm Security and Rural Investment Act of 2002
Creators: name: Fortenbery, T. Randall
name: Dobson, William D.
name: Fortenbery, T. Randall
name: Dobson, William D.
Publisher: name: Unknown
Year: 2002
Subjects: Agricultural and Food Policy

description: The contentious 2002 Farm Bill has been described by many as the most politicized farm legislation in recent history. Many lawmakers concluded that the 1996 Farm Bill was based on flawed assumptions and that U.S. farmers needed a more dependable safety net. Hence, their support for the 2002 Farm Bill, which represents a partial return to agricultural policies existing prior to the 1996 Freedom to Farm Bill. Many crop producers will see enhanced short-run returns under the new legislation. In addition, the new Farm Bill will remove incentives for expanded soybean production relative to corn in the U.S. Politically popular conservation payments increase under the new legislation. However, trading partners have been angered by the legislation. This will sour the atmosphere for agricultural trade liberalization negotiations in the Doha WTO Round, and may trigger additional complaints to be launched against the U.S. under the WTO dispute settlement mechanisms
Deep-Masking Generative Network: A Unified Framework for Background Restoration from Superimposed Images
Creators: name: Feng, Xin
name: Pei, Wenjie
name: Jia, Zihui
name: Chen, Fanglin
name: Zhang, David
name: Lu, Guangming
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Restoring the clean background from the superimposed images containing a noisy layer is the common crux of a classical category of tasks on image restoration such as image reflection removal, image deraining and image dehazing. These tasks are typically formulated and tackled individually due to the diverse and complicated appearance patterns of noise layers within the image. In this work we present the Deep-Masking Generative Network (DMGN), which is a unified framework for background restoration from the superimposed images and is able to cope with different types of noise. Our proposed DMGN follows a coarse-to-fine generative process: a coarse background image and a noise image are first generated in parallel, then the noise image is further leveraged to refine the background image to achieve a higher-quality background image. In particular, we design the novel Residual Deep-Masking Cell as the core operating unit for our DMGN to enhance the effective information and suppress the negative information during image generation via learning a gating mask to control the information flow. By iteratively employing this Residual Deep-Masking Cell, our proposed DMGN is able to generate both high-quality background image and noisy image progressively. Furthermore, we propose a two-pronged strategy to effectively leverage the generated noise image as contrasting cues to facilitate the refinement of the background image. Extensive experiments across three typical tasks for image background restoration, including image reflection removal, image rain steak removal and image dehazing, show that our DMGN consistently outperforms state-of-the-art methods specifically designed for each single task.
description: 16 pages, accepted for publication in IEEE Transactions on Image Processing (TIP)
The relation between X-ray spectral index and the Eddington ratio in AGNs
Creators: name: Bian, W.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Using the H$β$ linewidth, we obtained the virial central supermassive black hole masses and then the Eddington ratios in a sample of broad-line AGNs and NLS1s observed by ASCA. Combined with the data from ROSAT and Chandra observations, We found a strong correlation between hard/soft X-ray photon index and the Eddington ratio. Such a correlation can be understood by a two-zone accretion flow model, in which zone is a thin disk and the inner zone is an advection-dominated accretion flow (ADAF) disk. The relation between X-ray photon index and the Eddington ratio may account for NLS1s with not too steep X-ray photon index founded by SDSS. If this relation is directly related to the accretion disk, it may also exist in the accretion disk of different scales (such as microquasar).
description: 5 pages, 3 figues
ИМОМ ТЕРМИЗИЙНИНГ "СУНАНИ" ЁЗИЛИШ ТАРИХИ
Creators: name: Саиджалолов, Раҳматуллоҳ
Publisher: name: Zenodo
Year: 2024

description: Ат-Термизийнинг ижодий фаолиятида яратилган асарлари ичида «ал-Жоми’ ас-саҳиҳ» («Ишончли тўплам») энг асосий ўринни эгаллайди. Ушбу асар юқорида қайд қилганидек, «ал-Жоми’ ал-кабир» («Катта тўплам»), «Саҳиҳ ат-Термизий», «Сунан ат-Термизий» («Термизий суннатлари») каби номлар билан ҳам юритилади. Тарихчи Ибн Хажар ал-Асқалонийнинг ёзишича, ат-Термизий ушбу асарини 270 ҳижрий (884 милодий) йилда, яъни қарийб олтмиш ёшларида, илм-фанда катта тажриба орттириб, имомлик даражасига эришгандан кейин ёзиб тугатган.
HST/NICMOS observations of a proto-brown dwarf candidate
Creators: name: Apai, D.
name: Toth, L. V.
name: Henning, Th.
name: Vavrek, R.
name: Kovacs, Z.
name: Lemke, D.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present deep HST/NICMOS observations peering through the outflow cavity of the protostellar candidate IRAS 04381+2540 in the Taurus Molecular Cloud-1. A young stellar object as central source, a jet and a very faint and close (0.6") companion are identified. The primary and the companion have similar colours, consistent with strong reddening. We argue that the companion is neither a shock-excited knot nor a background star. The colour/magnitude information predicts a substellar upper mass limit for the companion, but the final confirmation will require spectroscopic information. Because of its geometry, young age and its rare low-mass companion, this system is likely to provide a unique insight into the formation of brown dwarfs.
description: Astronomy & Astrophysics Letters, in press; 4 pages, 2 figures
Resonance mode in $B_{1g}$ Raman scattering -- a way to distinguish between spin-fluctuation and phonon-mediated $d-$wave superconductivity
Creators: name: Chubukov, A. V.
name: Devereaux, T. P.
name: Klein, M. V.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We argue that Raman scattering in $B_{1g}$ symmetry allows one to distinguish between phonon-mediated and magnetically-mediated $d-$wave superconductivity. In spin mediated superconductors, $B_{1g}$ Raman intensity develops a resonance at a frequency $ω_{res} < 2Δ_{max}$, whose origin is similar to a neutron resonance. In phonon-mediated $d-$wave superconductors, such a resonance does not develop. Several extensions of the argument are presented.
description: 5 pages, 3 figures
On the Double Coset Membership Problem for Permutation Groups
Creators: name: Verbitsky, Oleg
Publisher: name: arXiv
Year: 2008
Subjects: subject: Computational Complexity (cs.CC)
subject: FOS: Computer and information sciences

description: We show that the Double Coset Membership problem for permutation groups possesses perfect zero-knowledge proofs.
description: 14 pages
Roots of Bernstein-Sato polynomials for monomial ideals: a positive characteristic approach
Creators: name: Budur, Nero
name: Mustata, Mircea
name: Saito, Morihiko
Publisher: name: arXiv
Year: 2005
Subjects: subject: Algebraic Geometry (math.AG)
subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: Primary 14B05; Secondary 13N10, 32S40

description: We describe the roots of the Bernstein-Sato polynomial of a monomial ideal using reduction mod p and invariants of singularities in positive chracteristic. We give in this setting a positive answer to a problem of Takagi, Watanabe and the second author, concerning the dependence on the characteristic for these invariants of singularities.
description: 17pages
Harsch, Helmut / Voß, Gerhard (Hrsg.), Versuche mehrdimensionaler Schriftauslegung
Creators: name: Wagner, Günter
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 22 Nr. 3 (1973): Ökumenische Rundschau, Band 22, Heft 3
Nuw CDM cosmology from the weak lensing convergence PDF
Creators: name: Boyle, Aoife
name: Uhlemann, Cora
name: Friedrich, Oliver
name: Barthelemy, Alexandre
name: Codis, Sandrine
name: Bernardeau, Francis
name: Giocoli, Carlo
name: Baldi, Marco
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Pinning down the total neutrino mass and the dark energy equation of state is a key aim for upcoming galaxy surveys. Weak lensing is a unique probe of the total matter distribution whose non-Gaussian statistics can be quantified by the one-point probability distribution function (PDF) of the lensing convergence. We calculate the convergence PDF on mildly non-linear scales from first principles using large-deviation statistics, accounting for dark energy and the total neutrino mass. For the first time, we comprehensively validate the cosmology-dependence of the convergence PDF model against large suites of simulated lensing maps, demonstrating its percent-level precision and accuracy. We show that fast simulation codes can provide highly accurate covariance matrices, which can be combined with the theoretical PDF model to perform forecasts and eliminate the need for relying on expensive N-body simulations. Our theoretical model allows us to perform the first forecast for the convergence PDF that varies the full set of $Λ$CDM parameters. Our Fisher forecasts establish that the constraining power of the convergence PDF compares favourably to the two-point correlation function for a Euclid-like survey area at a single source redshift. When combined with a CMB prior from Planck, the PDF constrains both the neutrino mass $M_ν$ and the dark energy equation of state $w_0$ more strongly than the two-point correlation function.
description: Accepted by MNRAS
title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¼ÐµÑÐ¾Ð´Ð¸ÐºÐ¸ Ð¾Ð¿ÐµÑÐ°ÑÐ¸Ð²Ð½Ð¾Ð³Ð¾ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ ÑÐµÑ Ð½Ð¸ÑÐµÑÐºÐ¸Ð¼ ÑÐ¾ÑÑÐ¾ÑÐ½Ð¸ÐµÐ¼ Ð¼Ð°ÑÐ»Ð¾Ð½Ð°Ð¿Ð¾Ð»Ð½ÐµÐ½Ð½ÑÑ ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾ÑÐ¾Ð²
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Development of a methodology for the operational management of the technical condition of oil-filled transformers
Creators: name: ÐÐ°ÑÑÑÐ¾Ð², ÐÐ²Ð³ÐµÐ½Ð¸Ð¹
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2024
Subjects: Ð¢ÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾ÑÐ½ÑÐµ Ð¼Ð°ÑÐ»Ð°
Ð¢ÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾ÑÑ
ÑÐµÐ»Ð»ÑÐ»Ð¾Ð·Ð°
ÑÐµÑ Ð½Ð¸ÑÐµÑÐºÐ¾Ðµ ÑÐ¾ÑÑÐ¾ÑÐ½Ð¸Ðµ
ÐºÐ¸ÑÐ»Ð¾ÑÐ½Ð¾Ðµ ÑÐ¸ÑÐ»Ð¾
Ð°Ð´ÑÐ¾ÑÐ±ÑÐ¸Ð¾Ð½Ð½ÑÐ¹ ÑÐ¸Ð»ÑÑÑ
ÑÐµÑÐ¼Ð¾ÑÐ¸ÑÐ¾Ð½Ð½ÑÐ¹ ÑÐ¸Ð»ÑÑÑ
cellulose
technical condition
acid number
adsorption filter thermosyphon filter

description: ÐÐ±ÑÐµÐºÑÐ¾Ð¼ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð±ÑÐ» Ð²ÑÐ±ÑÐ°Ð½Ñ Ð¼Ð°ÑÐ»Ð¾Ð½Ð°Ð¿Ð¾Ð»Ð½ÐµÐ½Ð½ÑÐµ ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾ÑÑ, Ð´Ð»Ñ ÐºÐ¾ÑÐ¾ÑÑÑ Ð±ÑÐ»Ð° ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ð° Ð¼ÐµÑÐ¾Ð´Ð¸ÐºÐ° Ð¾Ð¿ÐµÑÐ°ÑÐ¸Ð²Ð½Ð¾Ð³Ð¾ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¼ ÑÐ¾ÑÑÐ¾ÑÐ½Ð¸ÐµÐ¼. ÐÑÐ¸ ÑÑÐ¾Ð¼ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÐ¼ Ð¾Ð±ÑÐµÐºÑÐ¾Ð¼ Ð² Ð´Ð°Ð½Ð½Ð¾Ð¹ Ð¼ÐµÑÐ¾Ð´Ð¸ÐºÐµ ÑÐ²Ð»ÑÐµÑÑÑ ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾ÑÐ½Ð¾Ðµ Ð¼Ð°ÑÐ»Ð¾, ÑÐ°Ðº ÐºÐ°Ðº Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ Ð½ÐµÐ³Ð¾ Ð¼Ð¾Ð¶Ð½Ð¾ Ð±ÑÑÑÑÐ¾ Ð¸ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ Ð¾ÑÐµÐ½Ð¸ÑÑ ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¾Ðµ ÑÐ¾ÑÑÐ¾ÑÐ½Ð¸Ðµ ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾ÑÐ°, Ð½Ðµ Ð²ÑÐºÐ»ÑÑÐ°Ñ Ð¸ ÑÐ°Ð·Ð±Ð¸ÑÐ°Ñ ÐµÐ³Ð¾. Ð Ð¿ÑÐ¾ÑÐµÑÑÐµ ÑÐ°Ð±Ð¾ÑÑ Ð±ÑÐ»Ð¸ Ð¸Ð·ÑÑÐµÐ½Ñ ÑÐ²Ð¾Ð¹ÑÑÐ²Ð°, ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ¸, Ð¾ÑÐ¾Ð±ÐµÐ½Ð½Ð¾ÑÑÐ¸ ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾ÑÐ½ÑÑ Ð¼Ð°ÑÐµÐ» Ð¸ Ð½Ð°Ð²ÐµÑÐ½ÑÑ ÑÐ»ÐµÐ¼ÐµÐ½ÑÐ¾Ð² ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾ÑÐ°.
description: The subject of the research was chosen to be oil-filled transformers, for which a methodology for the operational management of their technical condition was developed. In this methodology, the primary focus is on the transformer oil, as it allows for a quick and effective assessment of the transformers technical condition without shutting it down or disassembling it. During the course of the work, the properties, characteristics, and features of transformer oils and the auxiliary elements of the transformer were studied.
Response of plankton community structure to temporal heterogeneity and productivity
Creators: name: Beisner, Beatrix Elisabeth
Publisher: name: University of British Columbia
Year: 2009

description: This thesis investigates the effects of different frequencies of temporal heterogeneity in vertical mixing on diversity and composition of phytoplankton communities. I examine the issue theoretically and experimentally in lake mesocosms for systems of different average productivity and for communities embedded within food webs of increasing complexity. The stochastic resource competition model shows that temporal heterogeneity in nutrient supply can be a feasible mechanism by which phytoplankton community diversity can be enhanced, mainly because demographic stochasticity can lead to a storage effect that precludes competitive exclusion. Responses by phytoplankton communities in oligotrophic Placid Lake to different experimental frequencies of vertical mixing depend on the nutrient status of the system and on the structure of higher trophic levels. Major effects of mixing on phytoplankton communities occur with enrichment, with shifts in community structure to larger, more filamentous types and to more diverse communities with increased water column stability (or decreased frequency of perturbations). Under low nutrient conditions, but when Daphnia was present, phytoplankton community structure also responded to different frequencies of mixing with lower community richness with more frequent mixing. This was attributed to an increase in predator-prey encounter rates with more frequent mixing. The inclusion of the entire natural plankton community led to a diminished response to frequency of mixing in phytoplankton, but to size-structure shifts in the top trophic level of invertebrate predators (i.e. Chaoborus sp.). The results of this study suggest that temporal heterogeneity arising in lakes as a result of storm events may have little influence in oligotrophic systems, contrary to the general conclusions drawn mainly from eutrophic laboratory systems that predict large responses in phytoplankton community structure.
Effects of Dust Growth and Settling in T Tauri Disks
Creators: name: D'Alessio, Paola
name: Calvet, Nuria
name: Hartmann, Lee
name: Franco-Hernandez, Ramiro
name: Servin, Hermelinda
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present self-consistent disk models for T Tauri stars which include a parameterized treatment of dust settling and grain growth, building on techniques developed in a series of papers by D'Alessio etal. The models incorporate depleted distributions of dust in upper disk layers along with larger-sized particles near the disk midplane, as expected theoretically and as we suggested earlier is necessary to account for mm-wave emission, SEDs, scattered light images, and silicate emission features simultaneously. By comparing the models with recent mid- and near-IR observations, we find that the dust to gas mass ratio of small grains at the upper layers should be < 10 % of the standard value. The grains that have disappeared from the upper layers increase the dust to gas mass ratio of the disk interior; if those grains grow to maximum sizes of the order of mm during the settling process, then both the millimeter-wave fluxes and spectral slopes can be consistently explained. Depletion and growth of grains can also enhance the ionization of upper layers, enhancing the possibility of the magnetorotational instability for driving disk accretion.
description: 53 pages, 18 figures. To appear in The Astrophysical Journal
Re-evaluation of the Gottfried sum using neural networks
Creators: name: Abbate, Riccardo
name: Forte, Stefano
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We provide a determination of the Gottfried sum from all available data, based on a neural network parametrization of the nonsinglet structure function F_2. We find S_G=0.244 +- 0.045, closer to the quark model expectation S_G=1/3 than previous results. We show that the uncertainty from the small x region is somewhat underestimated in previous determinations.
description: 4 pages, 3 figures, latex with revtex
FORMALIZING INFORMALITY: THE PRAEDIAL REGISTRATION SYSTEM IN PERU
Creators: name: Lastarria-Cornhiel, Susana
name: Barnes, Grenville
name: Lastarria-Cornhiel, Susana
name: Barnes, Grenville
Publisher: name: Unknown
Year: 1999
Subjects: subject: Land Economics/Use
subject: Land titles--Registration and transfer--Peru
subject: Land tenure--Government policy--Peru
subject: Land administration--Peru

description: The Praedial Property Registration system has been presented as an alternative system to traditional registries for the formalization of immovable property. Much of the earlier design and pilot work for the Praedial Property Registration system was done by the Peruvian private organization, Instituto Libertad y Democracia (ILD). They claim that in Peru they "have formalized over 150,000 properties much more quickly, and at dramatically less costs, than traditional titling and registration programs" in three-and-a-half years during the early 1990s. This property formalization system has been trademarked as PROFORM. It is being offered to other countries as a quick and inexpensive way to convert informal property in the hands of a large proportion of the population into legally recognized private property, and as a source of capital for the grassroots development of these countries. This study assesses the functioning of this system in Peru and its replicability in other countries. There is no easily accessible documentation on how this property formalization program has actually functioned in Peru, and it is therefore difficult for development agencies to determine its applicability elsewhere. This assessment of the Registro Predial in Peru is an attempt to document the functioning of an important component of this formalization program. The study examines different aspects of property formalization and related institutions and processes. The scope of this assessment, therefore, includes not only the Registro Predial registration system, but also the titling process (prior to registration) and the credit worthiness and credit opportunities for titled and registered property in both urban and rural areas in Lima that fall under the jurisdiction of the Registro Predial. The study also examines the concepts and legal framework of titling, registration, ownership rights, and possession rights within the Peruvian context.
Magnetic Monopole Search at high altitude with the SLIM experiment
Creators: name: Balestra, S.
name: Cecchini, S.
name: Cozzi, M.
name: Errico, M.
name: Fabbri, F.
name: Giacomelli, G.
name: Giacomelli, R.
name: Giorgini, M.
name: Kumar, A.
name: Manzoor, S.
name: McDonald, J.
name: Mandrioli, G.
name: Marcellini, S.
name: Margiotta, A.
name: Medinaceli, E.
name: Patrizii, L.
name: Pinfold, J.
name: Popa, V.
name: Qureshi, I. E.
name: Saavedra, O.
name: Sahnoun, Z.
name: Sirri, G.
name: Spurio, M.
name: Togo, V.
name: Velarde, A.
name: Zanini, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The SLIM experiment was a large array of nuclear track detectors located at the Chacaltaya high altitude Laboratory (5230 m a.s.l.). The detector was in particular sensitive to Intermediate Mass Magnetic Monopoles, with masses 10^5 < M <10^{12} GeV. From the analysis of the full detector exposed for more than 4 years a flux upper limit of 1.3 x 10^{-15} cm^{-2} s^{-1} sr^{-1} for downgoing fast Intermediate Mass Monopoles was established at the 90% C.L.
description: 11 pages. 11 EPS figures. Added Fig. 5 and ref. [15]. Added more details in Sect. 2 and 3
Heterotic Line Bundle Models on Generalized Complete Intersection Calabi Yau Manifolds
Creators: name: Larfors, Magdalena
name: Passaro, Davide
name: Schneider, Robin
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The systematic program of heterotic line bundle model building has resulted in a wealth of standard-like models (SLM) for particle physics. In this paper, we continue this work in the setting of generalised Complete Intersection Calabi Yau (gCICY) manifolds. Using the gCICYs constructed in Ref. [1], we identify two geometries that, when combined with line bundle sums, are directly suitable for heterotic GUT models. We then show that these gCICYs admit freely acting $\mathbb{Z}_2$ symmetry groups, and are thus amenable to Wilson line breaking of the GUT gauge group to that of the standard model. We proceed to a systematic scan over line bundle sums over these geometries, that result in 99 and 33 SLMs, respectively. For the first class of models, our results may be compared to line bundle models on homotopically equivalent Complete Intersection Calabi Yau manifolds. This shows that the number of realistic configurations is of the same order of magnitude.
description: 15 pages plus appendices, 1 figure, python repository; v2 modified to match version to be published in jhep, 3 figures, results unchanged
art driven innovation and artistic activism 4 the purpose of good: learnings and visions after 1 year of COVID19
Creators: name: Wandl-Vogt, Eveline
Publisher: name: Zenodo
Year: 2021
Subjects: Open Innovation; Co-Creation; Participatory Methods; Art Driven Innovation; Artistic Activism; COVID19; Sustainable Development Goals; SDGs; Good Life Goals; GLGs; Sustainability Transition; Inclusive Living; Social Innovation; Responsible Innovation

description: Invited Keynote for the first Lahore Digital Arts Festival 2020 in Pakistan.
 Virtually contributed due to COVID19.