cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Experimental studies of light propagation and storage
Creators: name: Gao, H.
name: Rosenberry, M.
name: Wang, J.
name: Batelaan, H.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We report on an experimental study of light pulse propagation and storage in a Rb atomic vapor for different pulse durations, magnetic fields, and atomic densities, and for two different isotopes. The results have been analyzed and compared with previous studies.
description: 16 pages. submitted to PRA
Supervised Jet Clustering with Graph Neural Networks for Lorentz Boosted Bosons
Creators: name: Ju, Xiangyang
name: Nachman, Benjamin
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: Jet clustering is traditionally an unsupervised learning task because there is no unique way to associate hadronic final states with the quark and gluon degrees of freedom that generated them. However, for uncolored particles like $W$, $Z$, and Higgs bosons, it is possible to approximately (though not exactly) associate final state hadrons to their ancestor. By labeling simulated final state hadrons as descending from an uncolored particle, it is possible to train a supervised learning method to create boson jets. Such a method much operates on individual particles and identifies connections between particles originating from the same uncolored particle. Graph neural networks are well-suited for this purpose as they can act on unordered sets and naturally create strong connections between particles with the same label. These networks are used to train a supervised jet clustering algorithm. The kinematic properties of these graph jets better match the properties of simulated Lorentz-boosted $W$ bosons. Furthermore, the graph jets contain more information for discriminating $W$ jets from generic quark jets. This work marks the beginning of a new exploration in jet physics to use machine learning to optimize the construction of jets and not only the observables computed from jet constituents.
description: 12 pages, 8 figures, data is published at https://zenodo.org/record/3981290#.XzQs5zVlAUF, code is available at https://github.com/xju2/root_gnn/releases/tag/v0.6.0
Estrategias lingüísticas en el desarrollo de competencias profesionales en la era digital
Creators: name: Ortiz, Francisco
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 470401
subject: Applied linguistics and educational linguistics

description: El artículo "Estrategias lingüísticas en el desarrollo de competencias profesionales en la era digital" analiza cómo el uso adecuado de estrategias lingüísticas contribuye al desarrollo de habilidades profesionales en un entorno digital. En un mundo cada vez más globalizado y tecnológico, las competencias lingüísticas son esenciales para interactuar en plataformas digitales, gestionar la comunicación interprofesional y acceder a oportunidades laborales.El artículo explora la importancia de adaptar las habilidades lingüísticas a los nuevos medios de comunicación, como las redes sociales, videoconferencias y plataformas colaborativas, y cómo estas herramientas pueden mejorar la eficacia profesional. Además, se examinan las estrategias lingüísticas que promueven la adaptabilidad, la empatía y la efectividad comunicativa en un contexto laboral cambiante.A través de ejemplos prácticos y estudios de caso, se demuestra cómo el dominio de múltiples idiomas y la capacidad para emplear las estrategias lingüísticas adecuadas mejoran la integración en equipos internacionales, facilitan el networking y potencian el aprendizaje continuo. Las empresas y profesionales que dominan las estrategias lingüísticas digitales logran posicionarse mejor en el mercado global, incrementando su competitividad.
The Supersymmetric Method in Random Matrix Theory and Applications to QCD
Creators: name: Verbaarschot, J. J. M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The supersymmetric method is a powerful method for the evaluation of quenched averages in disordered systems. Among others, this method has been applied to the theory of S-matrix fluctuations, the theory of universal conductance fluctuations and the microscopic spectral density of the QCD Dirac operator. We start this series of lectures with a general review of Random Matrix Theory and the statistical theory of spectra. An elementary introduction of the supersymmetric method in Random Matrix Theory is given in the second and third lecture. We will show that a Random Matrix Theory can be rewritten as an integral over a supermanifold. This integral will be worked out for the Gaussian Unitary Ensemble that describes systems with broken time reversal invariance. We especially emphasize the role of symmetries. As a second example of the application of the supersymemtric method we discuss the calculation of the microscopic spectral density of the QCD Dirac operator. which is known to be given by chiral Random Matrix Theory. Also in this case we use symmetry considerations to rewrite the generating function for the resolvent as an integral over a supermanifold. The main topic of the second last lecture is the recent developments on the relation between the supersymmetric partition function and the Toda lattice hierarchy. We will show that this relation is an efficient way to calculate superintegrals. Finally, we will discuss the quenched QCD Dirac spectrum at nonzero chemical potential. Because of the nonhermiticity of the Dirac operator the usual supersymmetric method has not been successful in this case. However, we will show that the supersymmetric partition function can be evaluated by means of the replica limit of the Toda lattice equation.
description: Lectures given at the 2004 ELAF Summer School in Mexico City, 89 pages, 4 figures
Generalized Quantum Relativistic Kinematics: a Stability Point of View
Creators: name: Chryssomalakos, C.
name: Okon, E.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We apply Lie algebra deformation theory to the problem of identifying the stable form of the quantum relativistic kinematical algebra. As a warm up, given Galileo's conception of spacetime as input, some modest computer code we wrote zeroes in on the Poincare-plus-Heisenberg algebra in about a minute. Further ahead, along the same path, lies a three dimensional deformation space, with an instability double cone through its origin. We give physical as well as geometrical arguments supporting our view that moment, rather than position operators, should enter as generators in the Lie algebra. With this identification, the deformation parameters give rise to invariant length and mass scales. Moreover, standard quantum relativistic kinematics of massive, spinless particles corresponds to non-commuting moment operators, a purely quantum effect that bears no relation to spacetime non-commutativity, in sharp contrast to earlier interpretations.
description: 26 pages, 2 figures
COMMERCIALIZATION EFFECTS ON HOUSEHOLD INCOME, POVERTY, AND DIVERSIFICATION: A COUNTERFACTUAL ANALYSIS OF MAIZE FARMERS IN KENYA
Creators: name: Olwande, John
name: Smale, Melinda
name: Olwande, John
name: Smale, Melinda
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Food Security and Poverty
subject: International Development
subject: Marketing
subject: FOS: Economics and business

description: High poverty rate persists in rural Kenya, where farming households continue to depend on agriculture for food and income, despite economic growth. Maize is the most widely grown crop, with the maize-growing smallholder population quite heterogeneous and diversified.However, less than half the growers enter the market to sell at least a portion of their harvest.Our objective in this paper is to test the effects of maize market participation on household income, poverty status, and income diversification among Kenya’s smallholder maize growers. We employ a combination of propensity score matching and endogenous switching regression on household panel data covering a ten-year period. The propensity score matching results show that in the overall, participation in the maize market has a significant impact on household income and poverty, with the magnitude of impact estimates differing across segments of maize growers, while the impact on diversification of income sources is not significant in most cases. These results persist after controlling for hidden selection bias through endogenous switching regression, with the impact estimates larger. Heterogeneity effects attest to existence of underlying differences among the maize-producing households that make sellers better off than non-sellers regardless of participation in the maize market. Our findings reinforce the call for interventions to expand the capacity of smallholder maize farmers to produce for the market in efforts to raise incomes and contribute to a more widespread poverty reduction.
Birth of the Universe from the Landscape of String Theory
Creators: name: Kobakhidze, Archil
name: Mersini-Houghton, Laura
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show that a unique, most probable and stable solution for the wavefunction of the universe, with a very small cosmological constant $Λ_1 \simeq (\fracπ{l_p N})^2$, can be predicted from the supersymmetric minisuperspace with $N$ vacua, of the landscape of string theory without reffering to the antropic principle. Due to the nearest neighbor tunneling in moduli space lattice, the $N$-fold degeneracy of vacua is lifted and a discrete spectrum of bound state levels over the whole minisuperspace emerges. $SUSY$ is spontaneously broken by these bound states, with discrete nonzero energy levels $Λ_s \simeq (\frac{s π}{l_p N})^2$, $s = 1,2,..$.
description: 4 pp, no figures
On Charged Black Holes in Anti-de Sitter Space
Creators: name: Brecher, Dominic
name: He, Jianyang
name: Rozali, Moshe
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the region inside the event horizon of charged black holes in five dimensional asymptotically anti-de Sitter space, using as a probe two-sided correlators which are dominated by spacelike geodesics penetrating the horizon. The spacetimes we investigate include the Reissner-Nordstrom black hole and perturbations thereof. The perturbed spacetimes can be found exactly, enabling us to perform a local scan of the region between the inner and outer horizons. Surprisingly, the two-sided correlators we calculate seem to be geometrically protected from the instability of the inner horizon.
description: 1+37 pages, 20 ps and eps figures, LaTeX. References added and changes made to section 5
LCBD-g results based on distance-based data from Quantitative measurement of geodiversity uniqueness: research implications and conservation applications
Creators: name: Alahuhta, Janne
name: García-Girón, Jorge
name: Hjort, Jan
name: Salminen, Henriikka
name: Tukiainen, Helena
name: Heino, Jani
Publisher: name: The Royal Society
Year: 2024
Subjects: classificationCode: 3705
subject: Geology
subject: FOS: Earth and related environmental sciences

description: Variation in LCBD-g values based on the distance-based data approach for (a) Rekijoki, (b) Paistunturit, and (c) Oulanka regions. Significant LCBD-g values at the 0.05 significance threshold after Holm corrections for multiple testing are shown with yellow borders.
Machine Learning for Transient Recognition in Difference Imaging With Minimum Sampling Effort
Creators: name: Mong, Yik-Lun
name: Ackley, Kendall
name: Galloway, Duncan
name: Killestein, Tom
name: Lyman, Joe
name: Steeghs, Danny
name: Dhillon, Vik
name: O'Brien, Paul
name: Ramsay, Gavin
name: Poshyachinda, Saran
name: Kotak, Rubina
name: Nuttall, Laura
name: Pall'e, Enric
name: Pollacco, Don
name: Thrane, Eric
name: Dyer, Martin
name: Ulaczyk, Krzysztof
name: Cutter, Ryan
name: McCormac, James
name: Chote, Paul
name: Levan, Andrew
name: Marsh, Tom
name: Stanway, Elizabeth
name: Gompertz, Ben
name: Wiersema, Klaas
name: Chrimes, Ashley
name: Obradovic, Alexander
name: Mullaney, James
name: Daw, Ed
name: Littlefair, Stuart
name: Maund, Justyn
name: Makrygianni, Lydia
name: Burhanudin, Umar
name: Starling, Rhaana
name: Eyles, Rob
name: Tooke, Spencer
name: Duffy, Christopher
name: Aukkaravittayapun, Suparerk
name: Sawangwit, Utane
name: Awiphan, Supachai
name: Mkrtichian, David
name: Irawati, Puji
name: Mattila, Seppo
name: Heikkil"a, Teppo
name: Breton, Rene
name: Kennedy, Mark
name: Mata-Sanchez, Daniel
name: Rol, Evert
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The amount of observational data produced by time-domain astronomy is exponentially in-creasing. Human inspection alone is not an effective way to identify genuine transients fromthe data. An automatic real-bogus classifier is needed and machine learning techniques are commonly used to achieve this goal. Building a training set with a sufficiently large number of verified transients is challenging, due to the requirement of human verification. We presentan approach for creating a training set by using all detections in the science images to be thesample of real detections and all detections in the difference images, which are generated by the process of difference imaging to detect transients, to be the samples of bogus detections. This strategy effectively minimizes the labour involved in the data labelling for supervised machine learning methods. We demonstrate the utility of the training set by using it to train several classifiers utilizing as the feature representation the normalized pixel values in 21-by-21pixel stamps centered at the detection position, observed with the Gravitational-wave Optical Transient Observer (GOTO) prototype. The real-bogus classifier trained with this strategy can provide up to 95% prediction accuracy on the real detections at a false alarm rate of 1%.
description: 9 pages, 8 figures
Do We Accurately Know the Formation of Solar 8B?
Creators: name: Gai, Moshe
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A detailed examination of current data on S_17 (as opposed to an examination of S_17(0) only) excludes quoting S_17(0) with sufficiently small uncertainty. In contrast to suggestions that S_17(0) is now known with the accuracy of \pm 3%, the exact value of S_17(0) is dependent on the choice of the data and the choice of theory used for extrapolation. In addition recent high precision results (including the Seattle data) on S_17 which are in good agreement, still differ on the measured slopes, as do theoretical models that predict different d-wave contribution, precluding an accurate extrapolation to zero energy of the consistent data. Using a common extrapolation of only the consistent high precision data, suggests a value of S_17(0) = 21.2 \pm 0.5 eV-b, but a value equal to or smaller than 19.0 eV-b can not be excluded due to the uncertainty in the extrapolation, leading to an additional error of +0.0 -3.0 eV-b. This (unacceptable) situation must be cleared by future experiments.
description: Contribution to Neutrino 04, Paris, June 14-19, 2004, with one figure that includes the latest data
SERTÉS-HÍGTRÁGYÁRA ALAPOZOTT KAPCSOLT ENERGIA- ÉS TAKARMÁNY-ELŐÁLLÍTÁS
Creators: name: Attila, Bai
name: Attila, Bai
Publisher: name: Unknown
Year: 2013
Subjects: subject: Environmental Economics and Policy
subject: Livestock Production/Industries
subject: Resource /Energy Economics and Policy
subject: alga-előállítás
subject: bio-üzemanyag
subject: alga-olaj
subject: takarmányozás
subject: termesztés-technológia
subject: algae-production
subject: bio-fuel
subject: algoil
subject: feeding
subject: production technology

description: A Világ talán legfontosabb, hosszú távon egyszerre nehezen megoldandó problémái az élelmiszer- és energia-ellátás, valamint az élhető környezet biztosítása. A nemzetközi tendenciák azt mutatják, hogy ezek megoldására a szennyvíz-gazdálkodással összekötött, füstgáz-bevezetéssel kombinált, a melléktermékeket takarmányozásra hasznosító és biodízel előállítására alkalmas nagy olajtartalmú algafajok termesztése tekinthető az egyik legígéretesebb alternatívának. A Debreceni Egyetem AGTC és a Monergo Kft együttműködésével 2009-től folynak termesztéstechnológiai kísérletek ebben a témában. Kísérleteinket 4 algafajjal (Chlorella vulgaris, Scenedesmus quadricauda, Sc. dimorphus, Spirulina platensis) végeztük el. Kisüzemi kísérleteink alapján úgy véljük, hogy az algatelep megvalósítása a sertéstelepeken lehetővé teheti a képződő összes melléktermék hatékony hasznosítását, piacképes termékek előállítását, illetve jelentős költségek (takarmány, műtrágya, mosóvíz) megtakarítását. Kísérleteinket 2013-tól várhatóan kiterjesztjük a takarmányozási célú hasznosításra is. ------------------------------------------------------------------------ Food- and energy supply as well as livable environment can be considered as the most important, but simoultaneously hard to be solved troubles of mankind in the long run. Based on international tendencies, production of algae species with high oil-content and suitable for utilization of by-products for foddering- and biodiesel production, connected with sludge management and flue gas utilization can be regarded one of the most promising method. Experimentations in algae production technology has been delivered since 2009 in this topic by the cooperation of University of Debrecen and Monergo Ltd. We tested 4 algae species (Chlorella vulgaris, Scenedesmus quadricauda, Scenedesmus dimorphus, Spirulina platensis) during out investigations. Based on our small scale tests we suppose that establishment of an algae pond/plant can allow the effective utilization of all of by-products of a pig farm, the production of marketable final products and significant costs savings (foddering, fertilization, washing water). We are going to continue our experimentations from 2013 especially in the topic of algae use as animal feeding.
Hadron Correlations from Recombination and Fragmentation
Creators: name: Fries, R. J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We review the formalism of quark recombination applied to the hadronization of a quark gluon plasma. Evidence in favor of the quark recombination model is outlined. Recent work on parton correlations, leading to detectable correlations between hadrons, is discussed. Hot spots from completely quenched jets are a likely source of such correlations which appear to be jet-like. It will be discussed how such a picture compares with measurement of associated hadron yields at RHIC.
description: Overview talk at Hot Quarks 2004; 15 pages, 5 figures; submitted to J. Phys. G
Quantitative Probe of Pairing Correlations in a Cold Fermionic Atom Gas
Creators: name: Duine, R. A.
name: MacDonald, A. H.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: A quantitative measure of the pairing correlations present in a cold gas of fermionic atoms can be obtained by studying the dependence of RF spectra on hyperfine state populations. This proposal follows from a sum rule that relates the total interaction energy of the gas to RF spectrum line positions. We argue that this indicator of pairing correlations provides information comparable to that available from the spin-susceptibility and NMR measurements common in condensed-matter systems.
description: 5 pages, 1 figure
Symmetries from Locality. III. Massless Spin 2 Gravitons and Time Translations
Creators: name: Hertzberg, Mark P.
name: Litterer, Jacob A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We relax the assumption of time translation and Lorentz boost symmetry in theories involving massless spin 2 gravitons, while maintaining a basic notion of locality that there is no instantaneous signaling at a distance. We project out longitudinal modes, leaving only two degrees of freedom of the graviton. Our previous work, which assumed time translation symmetry, found that the Lorentz boost symmetry is required to ensure locality at leading order. In this work, without assuming time translations or Lorentz boosts, we show that locality of the exchange action between matter sources demands that massless spin 2, at leading order, organizes into Einstein-Hilbert plus a Gauss-Bonnet term with a prefactor that is constrained to be a particular function of time; while in the matter sector we recover time translation and Lorentz boost symmetry. Finally, we comment on whether the time dependence of the Gauss-Bonnet prefactor may be forbidden by going to higher order in the analysis and we mention that other possibilities are anticipated if graviton mass terms are included.
description: 11 pages in double column format. V2: Further clarifications. Updated towards version accepted for publication in Phys. Rev. D, including journal title. V3: Minor changes to final published version
Neutrino-Nucleus Reactions and Muon Capture in 12C
Creators: name: Krmpotic, F.
name: Samana, A.
name: Mariano, A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The neutrino-nucleus cross section and the muon capture rate are discussed within a simple formalism which facilitates the nuclear structure calculations. The corresponding formulae only depend on four types of nuclear matrix elements, which are currently used in the nuclear beta decay. We have also considered the non-locality effects arising from the velocity-dependent terms in the hadronic current. We show that for both observables in 12C the higher order relativistic corrections are of the order of ~5 only, and therefore do not play a significant role. As nuclear model framework we use the projected QRPA (PQRPA) and show that the number projection plays a crucial role in removing the degeneracy between the proton-neutron two quasiparticle states at the level of the mean field. Comparison is done with both the experimental data and the previous shell model calculations. Possible consequences of the present study on the determination of the $ν_μ->ν_e$ neutrino oscillation probability are briefly addressed.
description: 29 pages, 6 figures, Revtex4. Several changes were made to the previous manuscript, the results and final conclusions remain unalterable. It has been accepted for publication as a Regular Article in Physical Review C
title: Novel materials based on functionalised silsesquioxanes
Creators: name: Hardy, Julie
Publisher: name: The Open University
Year: 2001

description: The functionalisation of silsesquioxanes results in materials with novel physical properties. A series of compounds has been coupled with silsesquioxanes [HSiO3/2]8 and [SiO3/2]8 [OSi(CH3)2H]8 and the properties of the products investigated. Typically, coupling reactions involved hydrosilylation with H2PtCl6 or [Pt{(η-ViMe2Si)2O}(PtBu3)].

Mesogenic compounds have been shown to undergo a change in the liquid crystalline phase produced, once attached to the silsesquioxane core. A more ordered phase was observed due to the tethering of the mesogen to the cage. The silsesquioxanes core was considered to have been deformed in the production of this phase.

Silsesquioxanes capable of complexing metal atoms have also been studied. Polyether derivatised cages were prepared and preliminary studies indicate potential for potassium complexation. Vinyl functionalised silsesquioxanes have also been shown to complex platinum, in an exchange reaction with [Pt{(η-ViMe2Si)2O}(PtBu3)].

Investigations into the hydrosilylation reaction have involved coupling triethylsilane, triethoxysilane and the silsesquioxanes with a variety of vinyl, allyl and alkenic compounds. The proportions of α and β adducts were considered. Particular substituents were found to encourage α addition, with species having an oxygen or phenyl group at the allylic position producing the α-regioisomer as well as the typical β product. It is suggested that such substitution affects the mode of cis ligand insertion in the Chalk Harrod mechanism. A preference for the α-regioisomer was also observed for the hydrosilylations of vinyl silsesquioxane compounds.
Zastosowanie narzędzi analizy technicznej w bezpośrednim i pośrednim inwestowaniu w towary
Creators: name: Górska, Anna
name: Górska, Anna
Publisher: name: Unknown
Year: 2011
Subjects: subject: International Relations/Trade
subject: Research Methods/ Statistical Methods
subject: precious metals
subject: sector indices
subject: spot prices
subject: technical analysis indicators
subject: / metale szlachetne
subject: subindeksy sektorowe
subject: ceny spot
subject: wskaźniki analizy technicznej

description: Investing in commodities can be done twofold. It can be done indirectly, via buying stock of a commodity-based company or it can be done directly via purchasing a commodity in the spot market. Direct investing is usually the least problematic in the metals market. Investors support their decisions using various tools of technical analysis. They are applied in a similar manner whether for stock or metals market. The aim of this paper is to evaluate the direct and indirect investments by using a selected set of technical analysis indicators. The analysis covers the period from March 2009 to July 2011 and is based on spot prices. The basic indicators and oscillators are derived in order to determine the adequate (optimal) strategy. / Synopsis. Inwestowanie w towary może się odbywać na dwa sposoby. Inwestowanie pośrednie polega m.in. na zakupie akcji spółek działających na rynkach towarowych, zaś bezpośrednie na fizycznym zakupie towaru na rynku gotówkowym. W inwestowaniu bezpośrednim najmniej kłopotliwe jest inwestowanie na rynkach metali szlachetnych. Inwestorzy giełdowi w swoich decyzjach inwestycyjnych posiłkują się narzędziami analizy technicznej, których zasady stosowania są analogiczne w przypadku inwestowania w metale szlachetne jak i w akcje spółek. Celem pracy jest zatem wykorzystanie wybranych wskaźników analizy technicznej do oceny inwestycji bezpośrednich i pośrednich w towary. Analiza oparta jest na cenach spot, pochodzących z okresu od marca 2009 do końca lipca 2011 roku. Na ich podstawie są wyznaczone podstawowe wskaźniki i oscylatory, które będą pomocne w wyborze odpowiednich strategii.
Full Paper Work stress in Government Sector A Perspective towards productivity.pdf
Creators: name: Raj, Nitesh
Publisher: name: figshare
Year: 2020
Subjects: subject: 80708 Records and Information Management (excl. Business Records and Information Management)
subject: FOS: Media and communications
subject: 140211 Labour Economics
subject: FOS: Economics and business

description: Today stress is a major issue for government offices and there are no sufficientremedies to fix this problem. The productivity in employees is falling due to heavy stressin government offices. This is an alarming situation and hence there is a need to examinethe impact of stress level on employee of Government sectors. Stress is not necessarilybad in itself. While stress is typically discussed in negative context, it is has positiveview. Job stress is a symptoms arising from the higher level of hierarchy and the pressurecreated by stakeholder. The changed technologically advanced environment forced themto deviate from their normal functioning. It is a problem of adjustment and adaptationwith new sphere of work culture. As the employees overcome from this situation thesooner he will able to face the stress and can enjoy the life. That leads towards stressmanagement. To get stress relief these five strategies can help for stress elimination i.e.,CDITA 1.take a clear instruction for task 2.ifdoubts arises then ask again 3. involve thewhole team 4.manage the time and 5. accomplish the work assigned. The best way tocontrol stress is to have a great time management with calm and focused mind. There isno need of special skills or superhuman abilities to cope with stress. The only need isfocused and positive state of mind.
NGTS-11 b / TOI-1847 b: A transiting warm Saturn recovered from a TESS single-transit event
Creators: name: Gill, Samuel
name: Wheatley, Peter J.
name: Cooke, Benjamin F.
name: Jordán, Andrés
name: Nielsen, Louise D.
name: Bayliss, Daniel
name: Anderson, David R.
name: Vines, Jose I.
name: Lendl, Monika
name: Acton, Jack S.
name: Armstrong, David J.
name: Bouchy, François
name: Brahm, Rafael
name: Bryant, Edward M.
name: Burleigh, Matthew R.
name: Casewell, Sarah L.
name: Eigmüller, Philipp
name: Espinoza, Néstor
name: Gillen, Edward
name: Goad, Michael R.
name: Grieves, Nolan
name: Günther, Maximilian N.
name: Henning, Thomas
name: Hobson, Melissa J.
name: Hogan, Aleisha
name: Jenkins, James S.
name: McCormac, James
name: Moyano, Maximiliano
name: Osborn, Hugh P.
name: Pollacco, Don
name: Queloz, Didier
name: Rauer, Heike
name: Rojas, Felipe
name: Sarkis, Paula
name: Smith, Alexis M. S.
name: Pinto, Marcelo Tala
name: Tilbrook, Rosanna H.
name: Udry, Stéphane
name: Watson, Christopher A.
name: West, Richard G.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report the discovery of NGTS-11 b (=TOI-1847 b), a transiting Saturn in a 35.46-day orbit around a mid K-type star (Teff=5050 K). We initially identified the system from a single-transit event in a TESS full-frame image light-curve. Following seventy-nine nights of photometric monitoring with an NGTS telescope, we observed a second full transit of NGTS-11 b approximately one year after the TESS single-transit event. The NGTS transit confirmed the parameters of the transit signal and restricted the orbital period to a set of 13 discrete periods. We combined our transit detections with precise radial velocity measurements to determine the true orbital period and measure the mass of the planet. We find NGTS-11 b has a radius of 0.817+0.028-0.032 $R_J$, a mass of 0.344+0.092-0.073 $M_J$, and an equilibrium temperature of just 435+34-32 K, making it one of the coolest known transiting gas giants. NGTS-11 b is the first exoplanet to be discovered after being initially identified as a TESS single-transit event, and its discovery highlights the power of intense photometric monitoring in recovering longer-period transiting exoplanets from single-transit events.
description: 8 pages, 3 Figures, 1 table. Accepted to ApJ letters
Leptonic decay constants f_Ds and f_D in three flavor lattice QCD
Creators: name: Simone, J. N.
name: Aubin, C.
name: Bernard, C.
name: DeTar, C.
name: di Pierro, M.
name: El-Khadra, A. X.
name: Gottlieb, Steven
name: Gregory, E. B.
name: Heller, U. M.
name: Hetrick, J. E.
name: Kronfeld, A. S.
name: Mackenzie, P. B.
name: Menscher, D. P.
name: Nobes, M.
name: Okamoto, M.
name: Oktay, M. B.
name: Osborn, J.
name: Sugar, R.
name: Toussaint, D.
name: Trottier, H. D.
name: :
name: Lattice, The Fermilab
name: MILC
name: Collaborations, HPQCD
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We determine the leptonic decay constants in three flavor unquenched lattice QCD. We use O(a^2)-improved staggered light quarks and O(a)-improved charm quarks in the Fermilab heavy quark formalism. Our preliminary results, based upon an analysis at a single lattice spacing, are f_Ds = 263(+5-9)(+/-24) MeV and f_D = 225(+11-13)(+/-21) MeV. In each case, the first reported error is statistical while the is the combined systematic uncertainty.
description: Talk presented at Lattice2004(heavy), Fermilab, June 21-26, 2004. 3 pages, 2 figures
Honest AI: Fine-Tuning "Small" Language Models to Say "I Don't Know", and Reducing Hallucination in RAG
Creators: name: Chen, Xinxi
name: Wang, Li
name: Wu, Wei
name: Tang, Qi
name: Liu, Yiyao
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Hallucination is a key roadblock for applications of Large Language Models (LLMs), particularly for enterprise applications that are sensitive to information accuracy. To address this issue, two general approaches have been explored: Retrieval-Augmented Generation (RAG) to supply LLMs with updated information as context, and fine-tuning the LLMs with new information and desired output styles. In this paper, we propose Honest AI: a novel strategy to fine-tune "small" language models to say "I don't know" to reduce hallucination, along with several alternative RAG approaches. The solution ranked 1st in Task 2 for the false premise question. The alternative approaches include using RAG with search engine and knowledge graph results, fine-tuning base LLMs with new information and combinations of both approaches. Although all approaches improve the performance of the LLMs, RAG alone does not significantly improve the performance and fine-tuning is needed for better results. Finally, the hybrid approach achieved the highest score in the CRAG benchmark. In addition, our approach emphasizes the use of relatively small models with fewer than 10 billion parameters, promoting resource efficiency.
Zmienność cen pszenicy w Unii Europejskiej
Creators: name: Hamulczuk, Mariusz
name: Klimowski, Cezary
name: Hamulczuk, Mariusz
name: Klimowski, Cezary
Publisher: name: Unknown
Year: 2011
Subjects: subject: Agribusiness
subject: Crop Production/Industries
subject: Demand and Price Analysis
subject: Research Methods/ Statistical Methods
subject: Risk and Uncertainty
subject: wheat prices
subject: volatility
subject: price risk
subject: / ceny pszenicy
subject: zmienność
subject: ryzyko cenowe

description: Observed increased volatility of world commodity prices causes an increase of risk exposure. Thus market participants can not achieve the desired value of their goal function. The aim of this research was an assessment of wheat prices volatility in selected EU member states. Results of the analysis indicate a dispersion of volatility among the analyzed countries which is to some extent caused by the data aggregation effect. Lack of normality of log returns of the price series indicates a high possibility of outliers’ existence. Volatility of wheat prices is conditional which implies a need of using special risk measures. / Synopsis. Obserwowany wzrost zmienności cen na światowych rynkach rolnych powoduje coraz większą ekspozycję na ryzyko cenowe wpływając na możliwość niezrealizowania pożądanego poziomu wartości funkcji celu podmiotów rynkowych. Celem opracowania była ocena zmienności cen pszenicy w wybranych krajach UE jako podstawy szacowania ryzyka cenowego. Przeprowadzone badania wskazują na występowanie różnic w zmienności, przy czym w znacznej części są one pochodną agregacji danych. Brak normalności rozkładów zmian stóp zwrotu cen wskazuje na duże prawdopodobieństwo pojawiania się obserwacji odstających. Zmienność cen pszenicy ma charakter warunkowy, co implikuje konieczność stosowania odpowiednich miar szacunków zmienności.
The Exchange Gate in Solid State Spin Quantum Computation: The Applicability of the Heisenberg Model
Creators: name: Scarola, V. W.
name: Sarma, S. Das
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Solid state quantum computing proposals rely on adiabatic operations of the exchange gate among localized spins in nanostructures. We study corrections to the Heisenberg interaction between lateral semiconductor quantum dots in an external magnetic field. Using exact diagonalization we obtain the regime of validity of the adiabatic approximation. We also find qualitative corrections to the Heisenberg model at high magnetic fields and in looped arrays of spins. Looped geometries of localized spins generate flux dependent, multi-spin terms which go beyond the basic Heisenberg model.
description: 13 pages, 8 figures
Full Paper Impact Of Real Employment IJRAR.pdf
Creators: name: Raj, Nitesh
Publisher: name: figshare
Year: 2020
Subjects: Economics

description: The general conception of employment is that it makes access of livelihood easily. On the basis of a survey on thegeneral condition of Rikshawpuller of Dumka district who is unskilled labor, it is found that even they earn sufficientincome to meet the minimum level of substances still their condition is unsatisfactory and due to less marginalpropensity to save (MPS), investment is never be equal to saving while it is covered by various government welfareprogramme. Only by strong willingness to save and changed psychology can uplift their status in society and living ofstandard so they can equally participate in development of the economy of Santhal Pargana. And government shouldknow that despite all the good efforts, why the objectives of welfare programme has been not fulfilled.
Interactions between the extracellular and transmembrane domains of IG-alpha/beta heterodimer are required for BCR assembly and cell surface expression
Creators: name: Dylke, Janis
Publisher: name: University of British Columbia
Year: 2010

description: The B cell antigen receptor (BCR) is expressed on the surface of B-lymphocytes where it binds antigen and transmits signals that regulate B cell activation, growth and differentiation. The BCR is composed of membrane IgM (mlgM) and two signaling proteins, Ig-α and Ig-β. If either of the signaling proteins is not expressed, the incomplete mlgM-containing BCR will not traffic to the cell surface. Our hypothesis is that specific protein:protein interactions between both the extracellular and transmembrane (TM) regions of Ig-α and Ig-β are necessary for receptor assembly, cell surface expression and effective signaling to support the proper development of B cells. While previous work has shown the importance of the T M region in BCR assembly, this study indicates that a heterodimer of the extracellular domains of Ig-α and Ig-β are also required for proper association with mlgM. Cell lines expressing mutated Ig-α proteins that did not heterodimerize with Ig-β in the extracellular and T M domains were unable to properly assemble the BCR. Conversely, an Ig-α mutant with an Ig-β cytoplasmic tail (Cβ (α/α/β)) was able to assemble with the rest of the BCR and traffic to the cell surface. Thus, both the extracellular and TM regions if the Ig-α/Ig-β must be properly associated in order for the BCR to assemble. Additionally, an Ig-α mutant with a truncated cytoplasmic domain (ΔαKVK (α/α/0)) was not able to associate with Ig-β, indicating that the cytoplasmic domain may play a role in BCR assembly. Further studies with truncation mutants are required to confirm this result. In the future additional Ig-α/Ig-β mutants will be expressed to better define the regions of protein:protein interactions.
Dynamics of HIV Infection: an entropic-energetic view
Creators: name: González, Ramón E. R.
name: Figueirêdo, P. H.
name: Coutinho, S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: We propose a time-parameterized analogy between the thermodynamic behavior of a 3-level energy system and the progression of the HIV infection described by the cell population evolution generated by an appropriated cellular automata model. The development of internal energy and its fluctuations, and of the entropy of the 3-level energy system allows the identification of an effective temperature that uniquely characterizes the three main stages of the dynamic process of HIV infection. Furthermore, this thermodynamical equivalence allows obtaining the instants associated with particular time intervals of the evolution of internal energy and entropy, which are not quantitatively accessible by the usual dynamic models based on differential equations or cellular automata. The maximum entropy point, which marks the threshold between the states of positive and negative temperatures, also corresponds to the onset of the immune system\' exhaustion and the concomitant and inexorable progression to AIDS. Such point lies in the time interval where the energy inversion mechanisms in the populations of non-infected and infected cells occur. This time lag is also characterized by considerable fluctuations of the internal energy when different samples are compared.
description: The manuscript contains (including the references) 14 pages, 6 figures and one table. This work was submitted and approved in Physica A
Zmiany w powierzchni upraw ogrodniczych pod osłonami w Polsce w pierwszej dekadzie XXI w.
Creators: name: Jabłońska, Lilianna
name: Olewnicki, Dawid
name: Jabłońska, Lilianna
name: Olewnicki, Dawid
Publisher: name: Unknown
Year: 2011
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Crop Production/Industries
subject: Land Economics/Use
subject: horticultural products
subject: cultivation under cover
subject: vegetables
subject: ornamental plants
subject: / produkty ogrodnicze
subject: uprawa pod osłonami
subject: warzywa
subject: rośliny ozdobne

description: A high rate of development of horticultural production under cover was observed in Poland since 1993. However, economists were anxious about its future after our integration with the UE and the abolishment of tariff walls. The aim of the study was to verify those opinions. The changes in the horticultural acreage under cover in Poland during the years 2000-2009 have been investigated. The tendency and dynamics of changes in the area under cover and their structure according to group of plants, cover types and regions of Poland have been analysed. It was found that our integration with the UE had no influence on our greenhouse production sector. Since 2003, the acreage under vegetable cultivation is stable and that under floriculture production shows a gradual increase. Changes in the production structure in particular provinces were noticed. / Synopsis. W Polsce po 1993 roku obserwowano dynamiczny rozwój produkcji ogrodniczej pod osłonami. Równocześnie obawiano się o jej przyszłość po zniesieniu barier celnych w wyniku akcesji do Unii Europejskiej. W pracy podjęto próbę zweryfikowania tych obaw. Przeprowadzono badania zmian w powierzchni upraw ogrodniczych pod osłonami w Polsce w latach 2000-2009. Analizowano kierunek i dynamikę zmian całkowitego areału pod osłonami oraz areału upraw warzywniczych i kwiaciarskich, w tym kwiatów ciętych, a także strukturę upraw według grup roślin i typów osłon oraz zróżnicowanie regionalne. Badania wykazały, iż przystąpienie do Unii Europejskiej nie miało istotnego wpływu na naszą produkcję pod osłonami. Od 2003 roku powierzchnia upraw warzyw jest na stabilnym poziomie, a powierzchnia upraw kwiaciarskich wykazuje niewielką tendencję rosnącą. Odnotowano zmiany w strukturze produkcji w poszczególnych województwach.
Koszt zakupu usług w całkowitych kosztach produkcji rolniczej gospodarstw; analiza porównawcza na przykładzie Polski i Niemiec
Creators: name: Kołodziejczak, Małgorzata
name: Kołodziejczak, Małgorzata
Publisher: name: Unknown
Year: 2011
Subjects: subject: Agribusiness
subject: Agricultural Finance
subject: International Relations/Trade
subject: Production Economics
subject: agriculture
subject: services
subject: regions
subject: European Size Unit
subject: types of farming
subject: / rolnictwo
subject: usługi
subject: regiony
subject: Europejska Jednostka Wielkości
subject: typy rolnicze

description: The aim of the paper was to assess the share of services in the production costs of in Polish and German agriculture in comparison with all the EU countries. The analysis was based on the Farm Accountancy Data Network (FADN). The research covered services according to the regions of the European Union, different economic size classes (ESU) and different types of farming (TF). The services costs share in the intermediate consumption of resources, their value per farm and per one hectare of agricultural land in 2008 were evaluated. It was proved that a significant difference between the cost of these services in Poland and Germany existed. / Synopsis. W artykule podjęto próbę przedstawienia udziału kosztu zakupu usług w kosztach produkcji w rolnictwie polskim i niemieckim na tle Unii Europejskiej. Badanie przeprowadzono w oparciu o bazę danych systemu rachunkowości rolnej FADN. Analizą objęto usługi według regionów, klas wielkości ekonomicznej i typów rolniczych. Zidentyfikowano ich udział w zużyciu pośrednim, a także ich koszt w przeliczeniu na jedno gospodarstwo i 1 ha UR w 2008 roku. Wykazano, że występuje zauważalna różnica w tym zakresie pomiędzy rolnictwem polskim i niemieckim.
A source of a quasi--spherical space--time: The case for the M--Q solution
Creators: name: Herrera, L.
name: Barreto, W.
name: Pastora, J. L. Herenández
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: We present a physically reasonable source for an static, axially--symmetric solution to the Einstein equations. Arguments are provided, supporting our belief that the exterior space--time produced by such source, describing a quadrupole correction to the Schwarzschild metric, is particularly suitable (among known solutions of the Weyl family) for discussing the properties of quasi--spherical gravitational fields.
description: 34 pages, 9 figures. To appear in GRG