cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
From Exact Results to Gauge Dynamics on $\mathbb{R}^3\times S^1$
Creators: name: Ardehali, Arash Arabi
name: Cassia, Luca
name: Lü, Yongchao
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We revisit the vacuum structure of the $\mathcal{N}=1$ Intriligator-Seiberg-Shenker model on $\mathbb{R}^3\times S^1$. Guided by the Cardy-like asymptotics of its Romelsberger index, and building on earlier semi-classical results by Poppitz and Ünsal, we argue that previously overlooked non-perturbative effects generate a Higgs-type potential on the classical Coulomb branch of the low-energy effective 3d $\mathcal{N}=2$ theory. In particular, on part of the Coulomb branch we encounter the first instance of a dynamically-generated quintic monopole superpotential.
description: v3: Major revision with a more cogent presentation and several clarifications added. Mention of a preliminary investigation indicating a potential mismatch between the index perspective and the semi-classical approach in the case of the BCI model removed, as we now deem that investigation too crude. 20 pages, 2 figures
Quantum resonances and decoherence for delta-kicked atoms
Creators: name: Wimberger, Sandro
name: Guarneri, Italo
name: Fishman, Shmuel
Publisher: name: arXiv
Year: 2002
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The quantum resonances occurring with delta-kicked atoms when the kicking period is an integer multiple of the half-Talbot time are analyzed in detail. Exact results about the momentum distribution at exact resonance are established, both in the case of totally coherent dynamics and in the case when decoherence is induced by Spontaneous Emission. A description of the dynamics when the kicking period is close to, but not exactly at resonance, is derived by means of a quasi-classical approximation where the detuning from exact resonance plays the role of the Planck constant. In this way scaling laws describing the shape of the resonant peaks are obtained. Such analytical results are supported by extensive numerical simulations, and explain some recent surprising experimental observations.
description: 51 pages, 13 figures; KEYWORDS: quantum chaos, decoherence, kicked rotor, dynamical localization, atom optics; submitted to Nonlinearity
Erfassung und Validierung der subjektiven Talentkriterien von Fussballtrainern unter Verwendung eines konstruktivistischen Ansatzes
Creators: name: Jokuschies, Nina Maria
Publisher: name: Universität Bern
Year: 2016
Subjects: 790 Sports, games & entertainment

description: Talentselektionsentscheidungen sind zentraler Teil des Talentförderprozesses im Fussball und werden vorwiegend von Trainern und Trainerinnen gefällt. Aufgrund des Forschungsdefizits zum Talentverständnis wurden in der vorliegenden kumulativen Dissertation die subjektiven Talentkriterien von Experten-Fussballtrainern untersucht. Hierfür wurde unter der Verwendung eines konstruktivistischen Ansatzes ein halbstrukturierter Interviewleitfaden entwickelt. In einer ersten Studie lag der Fokus auf der differenzierten Erfassung der subjektiven Talentkriterien und einem ersten (inhaltlichen) Vergleich der von den Trainern verwendeten Talentmodelle. Zudem wurde die Verwendung einer Repertory Grid Technik getestet. In der zweiten Studie wurde das Studiendesign mit Blick auf die zusätzliche Überprüfung von Reliabilität und Validität der von den Trainern verwendeten Talentmodelle mithilfe der Repertory Grid Technik auf ein Mixed-Method-Design erweitert. Die Ergebnisse aus den beiden Studien mit sechs Experten-Clubtrainern und fünf Junioren-Nationaltrainern der Altersstufen U14 bis U18 geben einen differenzierten Einblick in das subjektive Talentverständnis der befragten Trainer. Über einen Zeitraum von 10 Wochen liessen sich adäquate Reliabilitätskoeffizienten finden. Als Hinweis auf die Validität lieferte eine ganzheitliche Potentialbeurteilung als Kriterium mittlere bis starke Korrelationen mit den Spielerbeurteilungen anhand der Talentkriterien durch die Trainer. Die beiden im Rahmen der Dissertation durchgeführten Studien werden in die sportwissenschaftliche Talentforschung eingeordnet und diskutiert.
Additional file 10: Figure S2 of Genus level analysis of PKS-NRPS and NRPS-PKS hybrids reveals their origin in Aspergilli
Creators: name: Theobald, Sebastian
name: Vesth, Tammi
name: Andersen, Mikael
Publisher: name: figshare
Year: 2019
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Plant Biology
subject: Computational Biology

description: Branch B from hybrid maximum likelihood phylogeny (Fig. 1). Sections and species groups indicated by tip color; Orientation of hybrids N-type (NRPS-PKS) and P-type (PKS-NRPS) indicated by tip shape. Tip labels constist of jgi organism name, jgi protein id and associated compound (if applicable). Percentage values of 1000 times bootstrap are indicated in red next to the node.
Design and prototyping of HARMONI's light-injection module for AO calibrations
Creators: name: Schwartz, Noah
name: Dohlen, Kjetil
name: El Hadi, Kacem
name: Karacar, Emre
name: Sauvage, Jean-Francois
name: Bardou, Lisa
name: Morris, Tim
name: Black, Martin
Publisher: name: Proceedings of AO4ELT7 conference 2023 - Editors: Thierry Fusco and Benoit Neichel
Year: 2023
Subjects: ELT
HARMONI
ADAPTIVE OPTICS
CALIBRATION SOURCE
OPTICAL FIBRES

description: In this paper, we present the design of the Adaptive Optics Calibration Unit (AOCU) of the HARMONI instrument, focusing on the light-injection module. We present theoretical photometric budget and evaluate experimental performance in the laboratory. We show that despite large attenuations ranging from 102-108, the scheme delivers the required beam quality (flux, geometry). Owing to the good performance and high level of flexibility of this scheme we are planning on using it for the AOCU and to replicate it for several other internal light-sources of HARMONI.
Price- and Non-Price Water Demand Management Strategies for Water Utilities
Creators: name: Asci, Serhat
name: Borisova, Tatiana
name: Dukes, Michael D.
name: Asci, Serhat
name: Borisova, Tatiana
name: Dukes, Michael D.
Publisher: name: Unknown
Year: 2015
Subjects: subject: Consumer/Household Economics
subject: Demand and Price Analysis
subject: Resource /Energy Economics and Policy
subject: Residential water demand
subject: non-price conservation
subject: smart irrigation controller.

description: Florida’s freshwater withdrawals for public water supply are the fourth largest in the U.S. (Kenny et al., 2009). Groundwater is the primary freshwater source, and given reductions in aquifer levels, water suppliers have been developing price- and non-price strategies to encourage residential water conservation. This study estimates price and income water demand elasticities for high water use residential properties in Central Florida, and compares the effectiveness of conservation pricing and irrigation controller installation in curbing residential water use. Our panel dataset includes monthly water use for 180 properties for January 2003 ̶ May 2009 (11,903 observations). Three stage least square (3SLS) technique is used to estimate average price and income elasticity, while property-level gross irrigation requirements account for weather effects on outdoor water use. Given alternative estimation techniques, the income elasticity is 0.07 and the price elasticity ranges from -0.11 to -0.13. Based on existing literature (Boyer et al., 2014), smart irrigation controller installation results in average 3.5 KGA/month water use reduction. The same water use reduction is achieved by 170% water price increase that is currently politically infeasible. However, moderate price increase can incentivize installation of irrigation controllers by reducing their payback periods.
First principles study of topological phase in chains of $3d$ transition metals
Creators: name: Kobiałka, Aksel
name: Piekarz, Przemysław
name: Oleś, Andrzej M.
name: Ptok, Andrzej
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Recent experiments have shown the signatures of Majorana bound states at the ends of magnetic chains deposited on a superconducting substrate. Here, we employ first principles calculations to directly investigate the topological properties of $3d$ transition metal nanochains (i.e., Mn, Cr, Fe and Co). In contrast to the previous studies [Nadj-Perge et al. Science 346, 602 (2014) and Ruby et al. Nano Lett. 17, 4473 (2017)], we found the exact tight binding models in the Wannier orbital basis for the isolated chains as well as for the surface--deposited wires. Based on these models, we calculate topological invariant of $\mathbb{Z}_2$ phase for all systems. Our results for the isolated chains demonstrate the existence of the topological phase only in the Mn and Co systems. We considered also a non-collinear magnetic order as a source of the non--trivial topological phase and found that this type of magnetic order is not a stable ground state in the Fe and Co isolated chains. Further studies showed that a coupling between the chain and substrate leads to strong modification of the band structure. Moreover, the analysis of the topological invariant indicates a possibility of emergence of the topological phase in all studied nanochains deposited on the Pb surface. Therefore, our results demonstrate an important role of the coupling between deposited atoms and a substrate for topological properties of nanosystems.
description: 11 pages, 7 figures
Strong-driving-assisted multipartite entanglement in cavity QED
Creators: name: Solano, E.
name: Agarwal, G. S.
name: Walther, H.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a method of generating multipartite entanglement by considering the interaction of a system of N two-level atoms in a cavity of high quality factor with a strong classical driving field. It is shown that, with a judicious choice of the cavity detuning and the applied coherent field detuning, vacuum Rabi coupling produces a large number of important multipartite entangled states. It is even possible to produce entangled states involving different cavity modes. Tuning of parameters also permits us to switch from Jaynes-Cummings to anti-Jaynes-Cummings like interaction.
description: Last version with minor changes and added references. Accepted for publication in Phys. Rev. Letters
Automated Fitting of Neural Network Potentials at Coupled Cluster Accuracy: Protonated Water Clusters as Testing Ground
Creators: name: Schran, Christoph
name: Behler, Jörg
name: Marx, Dominik
Publisher: name: arXiv
Year: 2019
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Highly accurate potential energy surfaces are of key interest for the detailed understanding and predictive modeling of chemical systems. In recent years, several new types of force fields, which are based on machine learning algorithms and fitted to ab initio reference calculations, have been introduced to meet this requirement. Here we show how high-dimensional neural network potentials can be employed to automatically generate the potential energy surface of finite sized clusters at coupled cluster accuracy, namely CCSD(T*)-F12a/aug-cc-pVTZ. The developed automated procedure utilizes the established intrinsic properties of the model such that the configurations for the training set are selected in an unbiased and efficient way to minimize the computational effort of expensive reference calculations. These ideas are applied to protonated water clusters from the hydronium cation, H$_3$O$^+$, up to the tetramer, H$_9$O$_{4}^{+}$, and lead to a single potential energy surface that describes all these systems at essentially converged coupled cluster accuracy with a fitting error of 0.06 kJ/mol per atom. The fit is validated in detail for all clusters up to the tetramer and yields reliable results not only for stationary points, but also for reaction pathways, intermediate configurations, as well as different sampling techniques. Per design the NNPs constructed in this fashion can handle very different conditions including the quantum nature of the nuclei and enhanced sampling techniques covering very low as well as high temperatures. This enables fast and exhaustive exploration of the targeted protonated water clusters with essentially converged interactions. In addition, the automated process will allow one to tackle finite systems much beyond the present case.
An Analysis of Producer Participation in the Georgia Grown State Marketing Program
Creators: name: Dudacek, Margaret
name: Berning, Joshua
name: Dudacek, Margaret
name: Berning, Joshua
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: Marketing
subject: FOS: Economics and business

description: State marketing programs are dedicated to promoting state grown and produced products. Currently, every state in the US has a state marketing program. At the same time, these programs vary in the extent of their efforts to promote state-specific agricultural products. To date, numerous studies have examined the impact of specific state marketing programs from a consumer perspective. To our knowledge, no studies have examined the producer side of state grown programs. The focus of this research is to identify specific factors that affect firm participation in the Georgia state marketing program, Georgia Grown. We rely on a unique data set identifying characteristics of participants in the Georgia Grown program along with their selection into a specific tier of marketing service. Importantly, each tier requires a specific sum for participation. Using this data, we are able to identify specific factors that influence participation including: industry sector and geographic region. The results of this analysis are relevant for understanding how state marketing programs can better interact with the suppliers who are interested in participating in their program.
The Comovement between Non-GM and GM Soybean Price in China: Evidence from Dalian Futures Market
Creators: name: Wang, Nanying
name: Houston, Jack
name: Wang, Nanying
name: Houston, Jack
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agricultural Finance
subject: Food Consumption/Nutrition/Food Safety
subject: China
subject: DCC-GARCH Model
subject: time-varying correlation
subject: macroeconomic

description: The price variability of agricultural commodities reached record levels in 2008, and again more recently in 2010, raising concerns about this increased price volatility would be temporal or structural. The Chinese soybean futures market is the second largest in the world, after the CME group, in terms of trading volume. There are two soybean futures contracts in China: non-GM and GM. Due to its dominant market share of trading volume, the non-GM contract is the representative of China’s soybean markets (He and Wang, 2011). However, with the emergence of the GM soybean contract in 2004, the components of non-GM futures price volatility might have changed. This study examines the volatility determinants as well as seasonality of non-GM and GM soybean futures prices traded in Dalian Commodity Exchange from 2005 to 2014. Also, we test the comovement between these two soybeans markets. We analyze the volatility by incorporating changes in important economic variables into the Dynamic Conditional Correlation-Generalized Autoregressive Conditional Heteroskedastic (DCC-GARCH) model. This research provides statistical evidence that the futures prices of soybeans in China are being influenced by the increasing consumption of soybeans, the import quantity of soybean, the trading volume in futures market and weather. We also find spillover effect from non-GM to GM in soybean markets. A better understanding of the volatility determinants provides important additional information for various market participants, including commodity traders, hedgers, arbitrageurs, exchanges and regulatory agencies.
The friction of tilted skates on ice
Creators: name: van Leeuwen, J. M. J.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The friction felt by a speed skater is calculated as function of the velocity and tilt angle of the skate. This calculation is an extension of the more common theory of friction of upright skates. Not only in rounding a curve the skate has to be tilted, but also in straightforward skating small tilt angles occur, which turn out to be of noticeable influence on the friction. As for the upright skate the friction remains fairly insensitive of the velocities occurring in speed skating.
description: 16 pages, 6 figures
MOESM2 of Transcriptomic and evolutionary analysis of the mechanisms by which P. argentatum, a rubber producing perennial, responds to drought
Creators: name: Nelson, Andrew
name: Grisel Ponciano
name: McMahan, Colleen
name: Ilut, Daniel
name: N. Pugh
name: Diaa Elshikha
name: Hunsaker, Douglas
name: Pauli, Duke
Publisher: name: figshare
Year: 2019
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: Additional file 2: Table S1. Mapping rate comparison between filtered and unfiltered guayule transcriptome.
Perception and Attitude of Agricultural Students towards E-learning
Creators: name: Ghadei, Kalyan
name: Rudd, Rick
name: Ghadei, Kalyan
name: Rudd, Rick
Publisher: name: Unknown
Year: 2015
Subjects: subject: Teaching/Communication/Extension/Profession
subject: Students
subject: Agriculture
subject: Access
subject: Awareness
subject: perception
subject: attitude
subject: E-learning

description: E-learning as one of the important tool that has widely been accepted, used and strengthened the teaching, learning curriculum in different sphere of our life in the present world including application in education. Its role in Agriculture is of high importance. Hence an attempt made to conduct a study on e-learning among agriculture students. The papers describe the access, awareness, attitude and perception of Agricultural students towards e-learning. It is revealed from the study that 90.24 per cent of the students were aware and 67.07 per cent of them had favorable attitude towards e-learning .The authors in belief that the findings mentioned in the paper would help in strategic planning, implementation of various ICT projects, determining efficiencies and effectiveness of projects related to educational planning and monitoring.
description: International net work of E learning should be initiated to reach the world wide students of Agriculture.
Ferrofluids as thermal ratchets
Creators: name: Engel, Andreas
name: Mueller, Hanns Walter
name: Reimann, Peter
name: Jung, Achim
Publisher: name: arXiv
Year: 2002
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Colloidal suspensions of ferromagnetic nano-particles, so-called ferrofluids, are shown to be suitable systems to demonstrate and investigate thermal ratchet behavior: By rectifying thermal fluctuations, angular momentum is transferred to a resting ferrofluid from an oscillating magnetic field without net rotating component. Via viscous coupling the noise driven rotation of the microscopic ferromagnetic grains is transmitted to the carrier liquid to yield a macroscopic torque. For a simple setup we analyze the rotation of the ferrofluid theoretically and show that the results are compatible with the outcome of a simple demonstration experiment.
description: 4 pages, 3 figures, corrected version, improved figures, to be published in Phys. Rev. Lett
MOESM1 of Transcriptomic and evolutionary analysis of the mechanisms by which P. argentatum, a rubber producing perennial, responds to drought
Creators: name: Nelson, Andrew
name: Grisel Ponciano
name: McMahan, Colleen
name: Ilut, Daniel
name: N. Pugh
name: Diaa Elshikha
name: Hunsaker, Douglas
name: Pauli, Duke
Publisher: name: figshare
Year: 2019
Subjects: subject: Biophysics
subject: Molecular Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology

description: Additional file 1: Figure S1. Representative image of water-restricted guayule flowering relative to non-flowering control plants of the same age.
Energy Sugar Beets to Biofuel: Field to Fuel Production System and Cost Estimates
Creators: name: Haankuku, Choolwe
name: Epplin, Francis M.
name: Kakani, Gopal V.
name: Haankuku, Choolwe
name: Epplin, Francis M.
name: Kakani, Gopal V.
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: Crop Production/Industries
subject: Production Economics
subject: Resource /Energy Economics and Policy
subject: breakeven price
subject: biorefinery
subject: energy beets

description: Energy beets (Beta vulgaris L.) meet the requirements for advanced biofuel feedstocks under the Energy Independence and Security Act of 2007. A mixed-integer programming model was constructed to determine the breakeven price of ethanol from energy beets, and to determine the optimal size and biorefinery location. The model, based on limited field data, evaluates Southern Plains beet production in a 3-year crop rotation, and beet harvest, transportation and processing. The optimal strategy depends critically on several assumptions including a just-in-time harvest and delivery system that remains to be tested in field trials. Based on a conversion rate of 26 gallons per wet ton and capital cost of $128 million for a 40,000,000 gallons per year biorefinery, the estimated breakeven ethanol price is $2.63 per gallon. The estimated beet delivered cost of $1.31 per gallon compares with the net corn feedstock cost ($1.17 to $1.74 per gallon in 2014). If for a mature industry, the cost to process beets was equal to the cost to process corn, the beet breakeven ethanol price would be $1.96 per gallon ($2.97 per gallon gasoline equivalent).
Probing the Planck Scale with Neutrino Oscillations
Creators: name: Brustein, Ram
name: Eichler, David
name: Foffa, Stefano
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Quantum gravity "foam", among its various generic Lorentz non-invariant effects, would cause neutrino mixing. It is shown here that, if the foam is manifested as a nonrenormalizable effect at scale M, the oscillation length generically decreases with energy $E$ as (E/M)^(-2). Neutrino observatories and long-baseline experiments should have therefore already observed foam-induced oscillations, even if M is as high as the Planck energy scale. The null results, which can be further strengthened by better analysis of current data and future experiments, can be taken as experimental evidence that Lorentz invariance is fully preserved at the Planck scale, as is the case in critical string theory.
description: 11 pages, 2 figures. Final version published in PRD. 1 figure, references, clarifications and explanations added. Results unchanged
Dynamical evolution of axion condensates under stimulated decays into photons
Creators: name: Carenza, Pierluca
name: Mirizzi, Alessandro
name: Sigl, Günter
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Dark matter axion condensates may experience stimulated decays into photon pairs. This effect has been often interpreted as a parametric resonance of photons from the axion-photon coupling, leading to an exponential growth of the photon occupation number in a narrow instability band. Most of the previous literature does not consider the possible evolution of the axion field due to the photon growth. We revisit this effect presenting a mean field solution of the axion-photon kinetic equations, in terms of number of photons and pair correlations. We study the limit of no axion depletion, recovering the known instability. Moreover, we extend the results including a possible depletion of the axion field. In this case we find that the axion condensate exhibits the behaviour of an inverted pendulum. We discuss the relevance of these effects for two different cases: an homogeneous axion field at recombination and a localized axion clump and discuss constraints that could result from the induced photon background.
description: 15 pages, 3 pdf figures. v2: 17 pages, 3 figures. Discussion enlarged. Added Appendix on axion instability in the expanding Universe. Matches the version accepted on PRD
Testing Theories of Fermion Masses
Creators: name: Raby, Stuart
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The origin of quark and lepton masses is one of the outstanding problems of physics. As the experimental data becomes more and more accurate, testing theories of fermion masses requires greater care. In this talk we discuss a theoretical framework for testing those theories with a high energy desert. It is only with precision tests that we can hope to narrow the set of viable, beyond the standard model theories.
description: 9 pages, 3 figures, proceedings of SUSY'01, June 2001, Dubna, Russia
Time Dependent Variational Principle for Tree Tensor Networks
Creators: name: Bauernfeind, Daniel
name: Aichhorn, Markus
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present a generalization of the Time Dependent Variational Principle (TDVP) to any finite sized loop-free tensor network. The major advantage of TDVP is that it can be employed as long as a representation of the Hamiltonian in the same tensor network structure that encodes the state is available. Often, such a representation can be found also for long-range terms in the Hamiltonian. As an application we use TDVP for the Fork Tensor Product States tensor network for multi-orbital Anderson impurity models. We demonstrate that TDVP allows to account for off-diagonal hybridizations in the bath which are relevant when spin-orbit coupling effects are important, or when distortions of the crystal lattice are present.
description: Submission to SciPost
THE COVID-19 PANDEMIC AND ITS CONSEQUENCES ABOUT THE GLOBAL TOURISM INDUSTRY
Creators: name: Shokirova, Nodira
name: Xusniddixujayeva, Aziza
Publisher: name: Academic research in educational sciences
Year: 2021
Subjects: coronavirus infection
pandemic
crisis
stimulating
new threats and challenges
main global problems
industry of tourism
world community
confrontation.

description: The article deals with the issues related to the analysis of the consequences of coronavirus infection, which has had an extremely negative impact on the international tourism industry. The author provides extensive factual material describing the scale and depth of the crisis that has erupted. Special attention is paid to the state of the domestic tourism business. It is noted that one of the key measures to bring the industry out of the crisis is the development of domestic tourism. The author proves the inadmissibility of attempts by a number of Western countries to politicize the global problem. Such attempts can lead the world community to unpredictable consequences, including in the field of international tourism. The conclusions in the article suggest that overcoming the consequences of the pandemic will be to contribute to the solution of other global problems of our time – in the field of economy, ecology, social and humanitarian spheres [Fukuyama F]
БАЧАДОН БЎЙНИ ХАВФЛИ ЎСМАЛАРИНИНГ ЁШГА ХОС ХУСУСИЯТЛАРИ
Creators: name: Ш. Б. Баротова
name: Д. В. Темирова
name: Г. Ф. Махмудова
Publisher: name: Academic research in educational sciences
Year: 2021
Subjects: эндофит
ретроспектив
проспектив
ясси хужайрали рак

description: Тадқиқотнинг мақсади фертил ва кекса ѐшдаги аѐлларда бачадон бўйни хавфли ўсмаларининг клинико-анатомо-морфологик хусусиятларини ўрганишдан иборат. Изланиш бачадон бўйни хавфли ўсмаси бўлган 60 нафар беморнинг ретроспектив ва проспектив маьлумотлари асосида олиб борилди. Касалланиш 52,2 ѐшли аѐлларда 35-39 ѐш хамда 60-64 ѐшлиларга нисбатан кўпрок кузатилмокда. Айтиш мумкинки, аѐлларда 83,3% холатларда ясси хужайрали рак тури учрамоқда. Айнан катта ѐшли аѐлларда ракнинг бу тури эндофит шаклда ўсиб давонинг қийинлашига ва прогнозининг яхши бўлмаслигига сабаб бўлмоқда.
Augmented Magnetic Octupole in Kagome Antiferromagnets Detectable via X-ray Magnetic Circular Dichroism
Creators: name: Yamasaki, Yuichi
name: Nakao, Hironori
name: Arima, Taka-hisa
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The magneto-optical Kerr effect (MOKE) has recently been discovered in antiferromagnetic Kagome lattice Mn3Sn. Since the compound exhibits a coplanar $120^\circ$ antiferromagnetic (AFM) order, the magnetic moments cancel each other, and the net magnetization is almost zero. However, the MOKE is allowed due to the lack of the time-reversal symmetry (TRS) of the AFM order. X-ray magnetic circular dichroism (XMCD) can detect a difference in up and down the spin density of states (DOS), and thus XMCD originating from the spin operator, the so-called Sz term, should be negligibly small as well as the net magnetization. Nonetheless, we show that XMCD originating from the magnetic dipole operator, the so-called Tz term, should remain uncancelled in the AFM with the broken TRS. Moreover, we clarify that there is a strong link between the Tz term and the augmented magnetic octupole (AMO), which suggests that XMCD can be an effective approach for analyzing multipole moments in antiferromagnets.
ИНГЛИЗ ТИЛИДАН ЎЗБЕК ТИЛИГА КИРИБ КЕЛГАН СЎЗЛАРНИНГ ТАРЖИМА МАСАЛАЛАРИ
Creators: name: Гулбаҳор Aзимжон Қизи Назарова
Publisher: name: Academic research in educational sciences
Year: 2021
Subjects: таржима
маданият
миллий ўзига хослик
она тили
контекст
эквивалентлик.

description: Мақолада сўзларни бир тилдан иккинчи тилга таржима қилишда эквивалентликни аниқлаш муаммоларини ўрганишга бағишланган. Мақолада ҳар иккала тилда эквиваленти бўлмаган инглиз ва ўзбек тилларидаги тушунчаларнинг намуналари келтирилган бўлиб, улар миллий-маданий, тарихий ва географик хусусиятлар эгалиги билан изоҳланади. Муаллиф бундай эквивалент бўлмаган сўзлар ва тушунчаларни бир тилдан иккинчи тилга таржима қилишнинг янги услубини таклиф қилади. Мақолада таржима назарияси ва амалиѐтига оид муҳим масалаларга хулосалар берилган, тўғри ва самарали таржимага эришиш йўллари келтирилган. Тадқиқотнинг назарий қисми кўплаб мисоллар билан исботланган
RG Flows from Super-Liouville Theory to Critical Ising Model
Creators: name: Ahn, Changrim
name: Kim, Chanju
name: Rim, Chaiho
name: Zamolodchikov, Al. B.
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study an integrable deformation of the super-Liouville theory which generates a RG flows to the critical Ising model as the IR fixed point. This model turns out to be a supersymmetric sinh-Gordon model with spontaneously broken N=1 supersymmetry. The resulting massless Goldstino is the only stable on-shell particle which controls the IR behaviours. We propose the exact $S$-matrix of the Goldstino and compare associated thermodynamic Bethe ansatz equations with the quantization conditions derived from the reflection amplitudes of the the super-Liouville theory to provide nonperturbative checks for both the (NS) and the (R) sectors.
description: 10 pages, 1 figures, to be published in Phys. Lett. B
Dynamics of Suspended Dust Grains: Experimental Investigations and Implications for Protoplanetary Discs
Creators: name: Capelo, Holly Larson
Publisher: name: Universität Bern
Year: 2018
Subjects: 500 Science
520 Astronomy
530 Physics

description: The collective interaction of solid particulate matter with flowing gas is one of the fundamental processes occurring in planet-forming discs. Small dust grains and pebbles are comparable to or smaller than the mean free path of the gas in observed and simulated discs, where the collective force of particles on the gas has been predicted to create a fluid 'streaming instability' that can produce a turbulent flow and associated localised solid-density enhancements. Such fluid instabilities are therefore favoured amongst candidate mechanisms that concentrate solids in the initial stages of planet formation, which requires sufficiently compact mass concentrations for gravity to play its role in assembling matter, first by producing precursor planetesimals via gravitational instabilities, and subsequently via accretion. Previously, the streaming instability was studied analytically and with numerical simulations. This is the first work to test the mechanism directly in laboratory experiments. In this thesis, I show that the non-linear phase of the streaming instability is manifest, both in experiments and simulations, when fluidised particles settle against a pressure gradient and the solid-to-gas density ratio is close to unity. The experimental results set a precedent for empirical studies of scalable two-phase flows with properties similar to the fluids in protoplanetary discs. These experimental findings provide a test case to calibrate codes that include additional physical processes important for mass assembly such as collisions and charge attraction. Having established a facility to study low-pressure gas flows will enable myriad additional tests of the dynamical interaction between rarefied gas and sample materials.
Stable vortex and dipole vector solitons in a saturable nonlinear medium
Creators: name: Yang, Jianke
name: Pelinovsky, Dmitry E.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We study both analytically and numerically the existence, uniqueness, and stability of vortex and dipole vector solitons in a saturable nonlinear medium in (2+1) dimensions. We construct perturbation series expansions for the vortex and dipole vector solitons near the bifurcation point where the vortex and dipole components are small. We show that both solutions uniquely bifurcate from the same bifurcation point. We also prove that both vortex and dipole vector solitons are linearly stable in the neighborhood of the bifurcation point. Far from the bifurcation point, the family of vortex solitons becomes linearly unstable via oscillatory instabilities, while the family of dipole solitons remains stable in the entire domain of existence. In addition, we show that an unstable vortex soliton breaks up either into a rotating dipole soliton or into two rotating fundamental solitons.
description: To appear in Phys. Rev. E
Telecoupled Landscapes for  Nature Inclusive Transitions; Conceptual framing and methods
Creators: name: Ingram, Verina
Publisher: name: Zenodo
Year: 2023
Subjects: Nature inclusive
transition
telecoupling
governance
transformative change
biodiversity
equity

description: The Dutch landscape is highly connected with other (inter)national landscapes, implying that considering telecoupling is foundational for nature inclusive transitions in the Netherlands. Our review demonstrated that there are multiple framings of telecoupling, with a development from structural to actor based and  governance approaches. Each of the identified approaches uses different angles, such as systems impact,  flow focused or intervention impact. To effectively use the concept of telecoupling, it is important to further develop and connect to scholarship such as power, equity, transformative change and environmental justice, which is currently lacking. This also includes different perspectives and knowledge often overlooked in  systems approaches (e.g. local knowledge) and the learning across methodologies (e.g. Social learning, ethnography).
ВАТАНПАРВАРЛИК МИЛЛИЙ ҚАДРИЯТЛАРИМИЗНИНГ МУСТАҲКАМ УСТУНИ
Creators: name: Ихтиёр Мизробович Саидов
Publisher: name: Academic research in educational sciences
Year: 2021
Subjects: миллий қадриятлар
ѐшлар
келажак
ишонч
миллий ғурур
ватанпарварлик
маънавий-ахлоқий
жисмоний баркамол
тарбия
уларга таълим-тарбия

description: Мақолада бугунги кунда миллий қадриятларимизни ѐш авлод онгига чуқур сингдириш ва шу орқали ѐшларимизда келажакка ишонч туйғуларини қарор топтириш ва ўтмиш меъросимиз унинг ўрни каби масалалар тахлил этилган.
Kreative KI-Werkzeuge für den Arbeitsalltag? Eine Nutzerperspektive
Creators: name: Müllner, Christopher
name: Hoßbach, Christian
name: Geldmacher, Jan
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2024
Subjects: subject: Künstliche Intelligenz
subject: KI-Tools
subject: Kreativität
subject: Problemlösen
subject: Mensch-Maschine-Interaktion
subject: Human Resources Management
subject: Personalentwicklung
subject: Kompetenzentwicklung
subject: 300

description: Wie können KI-Tools zur Unterstützung kreativer Denkprozesse eingesetzt werden? Dieser Beitrag zeigt aus einer Nutzerperspektive unterschiedliche Arten von KI-Tools auf und demonstriert deren Anwendung anhand eines Fallbeispiels aus der praktischen Personalarbeit. Im Fokus steht dabei, wie Mitarbeitende auf unterschiedliche Art und Weise mit diesen Werkzeugen arbeiten, welche wir als Alleskönner, Spezialisten und Kreativitätskatalysatoren kategorisieren. Auf dieser Basis diskutieren wir vergleichende Erfahrungen bei der Anwendung der KI-Tools und welche Implikationen sich daraus für die Entwicklung kreativer Kompetenzen ergeben. Dieser Beitrag liefert Erkenntnisse zur Integration von KI in kreative Arbeitsprozesse und bietet Anhaltspunkte für die Gestaltung von Personalentwicklungsmaßnahmen im Kontext der digitalen Transformation.
Entangled coherent states and squeezing in N trapped ions
Creators: name: Solano, E.
name: Filho, R. L. de Matos
name: Zagury, N.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider a resonant bichromatic excitation of N trapped ions that generates displacement and squeezing in their collective motion conditioned to their ionic internal state, producing eventually Scrhodinger cat states and entangled squeezing. Furthermore, we study the case of tetrachromatic illumination or producing the so called entangled coherent states in two motional normal modes.
description: 4 Revtex pages, no figures. To appear in Proceedings of "Mysteries, Puzzles and Paradoxes in Quantum Mechanics", Garda Lake, Italy (2001)
ТЕМИР ЙЎЛ ТРАНСПОРТИДА ЮКЛАРНИ ЕТКАЗИБ БЕРИШ ЖАРАЁНИДАГИ ВАГОНЛАРДАН САМАРАЛИ ФОЙДАЛАНИШНИ ТАҲЛИЛ ҚИЛИШ
Creators: name: Диёр Бобоев
name: Жамол Шихназаров
Publisher: name: Academic research in educational sciences
Year: 2021
Subjects: математик моделлаштириш
оптималлик шарти
бўш вагонлар
туриб қолиш
техник меьѐр
юк оқими
вагон айланмаси
статик юклама
мақсад функцияси
шартли чегаралар

description: Мақолада юкларни етказиб бериш жараѐнида вагонларнинг ўз вақтида бориши учун юк турига мос келувчи вагонларни танлаш чора-тадбирлари кўрсатиб берилган. Юкларни ташиш жараѐнида узоқ вақт туриб қолишига сабаб бўлувчи омилларни бартараф этиш учун бекатда мавжуд бўш вагонлардан ўз вақтида самарали фойдаланиш бўйича таклифлар ишлаб чиқилган. Бундан ташқари, юкларни етказиб бериш жараѐнида вагонларнинг юк кўтаришидан унумли фойдаланиб, мавжуд ташиш усулидаги камчиликларни бартараф этиш бўйича таклифлар берилган
Long-distance contributions to the QCD pressure
Creators: name: Schroder, York
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The QCD pressure is a most fundamental quantity, for which lattice data is available up to a few times the critical temperature $T_c$. Perturbation theory, even at very high temperatures, has serious convergence problems. Combining analytical and 3d numerical methods, we show that it is possible to compute the QCD pressure from about $2 T_c$ to infinity. We also describe an algorithm to generate and classify high order Feynman diagrams which is tailored to minimize computational effort.
description: 5 pages; talk at Statistical QCD, Bielefeld, August 26-30, 2001
GENDER AND ITS EFFECT ON LANGUAGE ACQUISITION
Creators: name: Zubaydova, Nilufar Nematillayevna
name: Gafforov, Hasan Shukhratovich
Publisher: name: Academic research in educational sciences
Year: 2021
Subjects: Age
Gender
Acquisition
Affective
Second Language
Factors
Difference
Effect.

description: Learning foreign languages has become an influential part of our life, however, it is affected by many non-linguistic factors. As well as, language acquisition is a complicated process including several factors and that this process is incredibly influenced due to the flexibility of the brain. Moreover, the nature of memory systems involved in females and males also have a fundamental role that makes the genders different. Furthermore, age and gender are significant factors deeply influencing language acquisition process
Investment in on-farm reservoirs to align economic returns and ecosystem services
Creators: name: Xu, Ying
name: Kovacs, Kent
name: Nalley, Lanier
name: Popp, Michael
name: Xu, Ying
name: Kovacs, Kent
name: Nalley, Lanier
name: Popp, Michael
Publisher: name: Unknown
Year: 2015
Subjects: subject: Land Economics/Use
subject: Research and Development/Tech Change/Emerging Technologies
subject: Resource /Energy Economics and Policy
subject: Ecosystem services
subject: On-farm reservoirs
subject: Spatial-dynamic optimization

description: Groundwater use plays an important role in agriculture where the lack of timely rainfall can lower yields. Policy makers strive to conserve ecosystem services, such as groundwater supply, while at the same time providing for economic growth. We develop a spatially explicit landscape level model for analyzing the ecosystem service and economic consequences of alternative crop mix patterns. The spatially explicit ecosystem service model uses initial aquifer thickness, hydro-conductivity of the aquifer, a digital elevation model, and soil characteristics, among other data, to predict the value of groundwater, surface water quality, and greenhouse gas emissions. The spatially explicit economic model incorporates site characteristics and location to predict economic returns for a variety of potential crop types. By thinking carefully about the arrangement of activities, we find crop mix and surface water storage systems that sustain high levels of ecosystem services and economic returns. Compared to the current crop mix, we show that both ecosystem service conservation and the value of economic activity could be increased substantially.
Economic Impacts of the PROCISUR Programme: An International Study
Creators: name: Evenson, Robert
name: Da Cruz, Elmar R.
name: Evenson, Robert
name: Da Cruz, Elmar R.
Publisher: name: Unknown
Year: 1992
Subjects: International Development
Public Economics

description: The PROCISUR cooperative research programme is an agreement among Argentina, Brazil, Chile, Bolivia, Paraguay, and Uraguay. This paper analyses its impact in terms of rates of return, based on an analysis of the programme as it affects productivity changes in wheat, maize, and soyabeans in the member countries since the inception of the programme in 1978. Computed rates are high according to international standards. The paper stresses the importance of international cooperation.
METHODOLOGICAL BASIS OF ORGANIZATION OF PSYCHOLOGICAL SERVICE IN ORGANIZATIONS OF PRESCHOOL EDUCATION
Creators: name: Mardonova, Farangiz Ikrom Kizi
Publisher: name: Academic research in educational sciences
Year: 2021
Subjects: Psychological service
preschool education
methods.

description: The article is devoted to the theory and practice of psychological service in the preschool education system. Its content is: systematization of the main problems of preschool psychological service, which determine its formation and development; a description of the main conditions, strategy and tactics of its full-fledged functioning; determination of the psychologist's interaction with all subjects of the preschool educational space
Economic Efficiency of Agricultural Research
Creators: name: Bashev, Chrabrin
name: Denchev, Rumen
name: Bashev, Chrabrin
name: Denchev, Rumen
Publisher: name: Unknown
Year: 1992
Subjects: Agribusiness
Production Economics
Research and Development/Tech Change/Emerging Technologies

description: The economic dimension of science has been one of the most treated problems in economics during the past three and a half decades. Over 6,000 publications appeared on the assessment of research results; several hundred formulae have been proposed to measure the efficiency of research workers, research institutions, and of science as a whole. The different aspects of research activity and its role in the realization of social goals have also been clarified. However, the overall economic theory of research efficiency is still in its formative stage. The number of studies of agricultural efficiency increased in parallel with agriculture's share in the economy, the growth of society, and with the amount of resources allocated to development of agricultural production. During the past decade, considerable progress has been made in clarifying the approach to estimation of research efficiency in agriculture, using agricultural economic analytical techniques, and identifying factors affecting efficiency growth in research and innovation. This paper presents some ideas related to scientific efficiency in agricultural research. It also estimates the economic efficiency of wheat selection in Bulgaria.
Phase separation and nucleation in mixtures of particles with different temperatures
Creators: name: Ilker, Efe
name: Joanny, Jean-François
Publisher: name: arXiv
Year: 2019
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Differences in activities in colloidal particles are sufficient to drive phase separation between active and passive (or less active) particles, even if they have only excluded volume interactions. In this paper, we study the phase separation kinetics and propose a theory of phase separation of colloidal mixtures in the diffusive limit. Our model considers a mixture of diffusing particles coupled to different thermostats, it thus has a non-equilibrium nature due to the temperature differences. However, we show that indeed the system recovers an effective equilibrium thermodynamics in the dilute limit. We obtain phase diagrams showing the asymmetry in concentrations due to activity differences. By using a more general approach, we show the equivalence of phase separation kinetics with the well known Cahn-Hilliard theory. On the other hand, higher order expansions in concentration indicate the emergence of non-equilibrium effects leading to a breakdown of the equilibrium analogy. We lay out the general theory in terms of accessible parameters which we demonstrate by several applications. In this simple formalism, we capture a positive surface tension for hard spheres}, and interesting scaling laws for interfacial properties, droplet growth dynamics, and phase segregation conditions. \rev{Several of our results are in agreement with existing numerical simulations while we also propose testable predictions.
description: Published version, 19 pages (main text+appendix), 4 figures