cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A Generalized Fluctuation-Dissipation Theorem for Nonlinear Response Functions
Creators: name: Wang, Enke
name: Heinz, Ulrich
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A nonlinear generalization of the Fluctuation-Dissipation Theorem (FDT) for the n-point Green functions and the amputated 1PI vertex functions at finite temperature is derived in the framework of the Closed Time Path formalism. We verify that this generalized FDT coincides with known results for n=2 and 3. New explicit relations among the 4-point nonlinear response and correlation (fluctuation) functions are presented.
description: 34 pages, Revtex
Quantum Oscillations of The Positive Longitudinal Magnetoconductivity: a Fingerprint for Identifying Weyl Semimetals
Creators: name: Deng, Ming-Xun
name: Qi, G. Y.
name: Ma, R.
name: Shen, R.
name: Sheng, L.
name: Xing, D. Y.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Weyl semimetals (WSMs) host charged Weyl fermions as emergent quasiparticles. We develop a unified analytical theory for the anomalous positive longitudinal magnetoconductance (LMC) in a WSM, which bridges the gap between the classical and ultra-quantum approaches. More interestingly, the LMC is found to exhibit periodic-in-$1/B$ quantum oscillations, originating from the oscillations of the nonequilibrium chiral chemical potential. The quantum oscillations, superposed on the positive LMC, are a remarkable fingerprint of a WSM phase with chiral anomaly, whose observation is a valid criteria for identifying a WSM material. In fact, such quantum oscillations were already observed by several experiments.
description: 5 pages, 3 figures
Eigenstates of Linear Combinations of Phase Operators
Creators: name: Sukumar, C. V.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The eigenstates of linear combinations of the Susskind and Glogowerphase operators for the harmonic oscillator are constructed. It is shown that such eigenstates are squeezed states.
description: 6pages
Gauge covariant algebras and local BRST cohomology
Creators: name: Brandt, Friedemann
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The formulation of the local BRST cohomology on infinite jet bundles and its relation and reduction to gauge covariant algebras are reviewed. As an illustration, we compute the local BRST cohomology for geodesic motion in (pseudo-) Riemannian manifolds and discuss briefly the result (symmetries, constants of the motion, consistent deformations).
description: 16 pages, latex, no figures
Themus (Telephorops) uniformis Yang, Kopetz & Yang, 2013, stat. n.
Creators: name: Yang, Yuxia
name: Kopetz, Andreas
name: Yang, Xingke
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cantharidae
Themus
Themus uniformis

description: Themus (Telephorops) uniformis Wittmer, 1983 stat. n. Figs 1-2 Themus (s.str.) bitinctus uniformis Wittmer 1983a: 218, fig. 30. Themus (s.str.) cribripennis Wittmer 1983b: 151, figs. 46, 49. Themus (Telephorops) bitinctus uniformis: Švihla 2008: 187. Themus (Telephorops) cribripennis: Švihla 2008: 187. syn. n. Type material examined. Themus (s.str.) bitinctus uniformis: Holotype ♂ (NHMB): [p]"Yen-ping, China \ VII.21. 1917 \ Ac. 5148", [h]"bitinctus \ uniformis", [p] "HOLOTYPUS", [p]"Naturhist. \ Museum Basel \ coll. W. Wittmer", [p]"CANTHARIDAE \ CANTH00000449". Themus (s.str.) cribripennis: Holotype ♂ (MNHN): [p]"Taihorinsho \ Formosa \ Sauter, VIII_ 7_09", [h]"Cantharis \ davidis Fairm.", [h]"Themus (s.str.) \ cribripennis \ Wittm. \ det. W. Wittmer", [p] "HOLOTYPUS", [h] "136". Paratype: 1♀ (NHMB): [p]"Suisharyo \ Formosa \ H. Sauter, X.1911", [h]"Themus s.str. \ cribripennis \ Wittm. \ det. W. Wittmer", [p] "PARATYPUS", [p]"CANTHARIDAE \ CANTH00002654". Distribution. China (Fujian, Taiwan). Remarks. Having examined the holotypes of Themus cribripennis Wittmer, 1983b and Themus bitinctus uniformis Wittmer, 1983a, we were unable to find differences justifying their separation, which has led us to consider all the examined specimens of both nominal species to be conspecific. Therefore, we synonymized Themus cribripennis under Themus bitinctus uniformis. Furthermore, Themus bitinctus uniformis should be upgraded to the specific rank, because it is obviously different from Themus bitinctus Wittmer, 1982 (located in Vietnam) in the aedeagus, except the difference in the elytra coloration from the latter.
description: Published as part of Yang, Yuxia, Kopetz, Andreas & Yang, Xingke, 2013, Taxonomic and nomenclatural notes on the genera Themus Motschulsky and Lycocerus Gorham (Coleoptera, Cantharidae), pp. 1-19 in ZooKeys 340 on page 3, DOI: 10.3897/zookeys.340.5470, http://zenodo.org/record/null
title: Media and Formation of Common National Identity in Post-Soviet Ukraine
Creators: name: Burianenko, Roksolana
Publisher: name: George Mason University
Year: 2017
Subjects: subject: Ukrainian crisis
subject: Language
subject: Identity
subject: Media

description: Ukrainian conflict could be viewed as the complex economic, political and social crisis within the state. I am studying the presentation of Ukrainian national identity in media during the conflict period, from November 23, 2013 till nowadays. The purpose of the study is to examine the description by the Ukrainian media of the conflict and development of the national identity connotations of the conflict. This project aims to answer the following question: ‘how do the Ukrainian media portray the current state crisis in relation to Ukrainian identity?’ The primary data for the analysis are articles and published speeches, discussions in mass media. Qualitative and quantitative data have been used for the analysis. The research project comprises of one case study with the sample of two media sources. The two samples have been used from two Ukrainian media sources: Ukraine Crisis Media Center and Pershyi Natsionalnyi TV channel (First National). Ukraine Crisis Media Center refers to the newly emerged crisis center and operates as an independent press agency; a major media source during the conflict. Pershyi Natsionalnyi TV channel (First National) is the Ukrainian state-run television channel, which is covering over 97% of Ukrainian territory. Sociological polls conducted by the Razumkov Center in Kyiv and Kiev International Institute of Sociology have been used as secondary data. Thus, Ukrainian identity has been described by the media based on the principle of “otherness” of the Ukrainian nation in relation to the Russian. Media present Ukrainian conflict in the framework of the cultural dimensions of the Ukrainian ethnicity. Media as an information sharing source should actively use public broadcasting and analytical discussions for the processes of formation of the common national identity among Ukrainians.
Geometric quantization of symplectic maps and Witten's asymptotic conjecture
Creators: name: Ioos, Louis
Publisher: name: arXiv
Year: 2018
Subjects: subject: Differential Geometry (math.DG)
subject: Mathematical Physics (math-ph)
subject: Geometric Topology (math.GT)
subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We use the theory of Berezin-Toeplitz operators of Ma and Marinescu to study the spaces of holomorphic sections of a prequantizing line bundle over compact Kähler manifolds under deformations of the complex structure. We show that the parallel transport in the induced vector bundle over the deformation space behaves like a Toeplitz operator, and compute its first coefficient. We then use this result to establish a semi-classical trace formula for the induced quantization of symplectic maps, and give an application to Witten's asymptotic expansion conjecture for the quantum representations of the mapping class group.
description: 51 pages, to appear in Adv. Math
Coherent Contributions of Nuclear Mesons to Electroproduction and the HERMES Effect
Creators: name: Miller, G. A.
name: Brodsky, S. J.
name: Karliner, M.
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We show that nuclear sigma, omega, and pi mesons can contribute coherently to enhance the electroproduction cross section on nuclei for longitudinal virtual photons at low Q^2 while depleting the cross section for transverse photons. We are able to describe recent HERMES inelastic lepton-nucleus scattering data at low Q^2 and small x using photon-meson and meson-nucleus couplings which are consistent with (but not determined by) existing constraints from meson decay widths, nuclear structure, deep inelastic scattering, and lepton pair production data. We find that while nuclear-coherent pion currents are not important for the present data, they could be observed at different kinematics. Our model for coherent meson electroproduction requires the assumption of mesonic currents and couplings which can be verified in separate experiments. The observation of nuclear-coherent mesons in the final state would verify our theory and allow the identification of a specific dynamical mechanism for higher-twist processes.
description: Published version with improved shadowing parametrization. To be published in Physics Letters B 481, 245-252, May, 2000
title: Neighborhood Quality, Childcare Quality, and Children's Early Developmental Outcomes
Creators: name: Bor, Elif
Publisher: name: George Mason University
Year: 2007
Subjects: subject: Neighborhood Quality
subject: Childcare Quality
subject: Early childhood
subject: Children's Developmental Outcomes

description: There has been mounting interest in the social sciences about the importance of multiple ecological contexts such as family, child-care settings, and neighborhoods that influence developmental outcomes in children. While the influence of the immediate family environment on early development has been investigated in detail, the effects of distal contexts beyond the family have only recently received attention. As a result of the changing trends in parental employment (e.g., growth in maternal employment) during the past half century, young children have begun to spend substantial hours in various child-care settings and to experience direct contact with neighborhoods through several neighborhood settings such as parks, churches, libraries, and children’s programs. The purpose of this current study is to explore the ways in which the interrelations between two important ecological systems -- neighborhood and childcare -- are associated with young children’s cognitive, social-emotional, language, and behavioral outcomes. As a part of a larger project, The Miami School Readiness Project, participants included 7,563 four-year-old preschool children receiving subsidies to attend community-based childcare, Title 1 public school pre-k programs, and children attending fee supported public-school pre-k programs in Miami-Dade County, Miami, Florida. Hypotheses were tested using statistical analyses including correlations, multiple regressions, and ANOVA. The results revealed small but significant relations between neighborhood characteristics and child outcomes. First of all, neighborhood risk negatively predicted children’s social-emotional and language outcomes after controlling for the family-level characteristics of parent income, parent education, and parent ethnicity. Among the neighborhood dimensions, socio-economic status was found to be the most influential characteristic of neighborhoods on child outcomes. Second, the quality of childcare services was lower in high-risk neighborhoods. Unexpectedly, high-socio economic status of the neighborhoods predicted only the facilities and building attractiveness of childcare, but did not predict the quality of services, activities, and interactions provided by childcare centers. Third, the relationship between the neighborhood quality and children’s outcomes was found to be stronger for children attending public school pre-kindergarten programs than for children receiving subsidies to attend community-based childcare centers. Fourth, family density/the presence of young children was negatively associated with childcare quality indicating that high quality childcare services are not found in the neighborhoods where they are needed the most. Finally, childcare quality did not buffer against the influence of neighborhood risk on development.
Exact Results in Chern-Simons Supergravity
Creators: name: Valtancoli, P.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We propose an extension of a recent non-perturbative method suited for solving the N-body problem in (2+1)-gravity to the case of Chern-Simons supergravity. Coupling with supersymmetric point particles is obtained implicitly by extending the DJH matching conditions of gravity. The consistent solution of the interacting case is obtained by building a general non-trivial mapping, extending the superanalytic mapping, between a flat polydromic $X^M$ supercoordinate system and a physical one $x^N$, representing the DJH matching conditions around the superparticles. We show how to construct such a mapping in terms of analytic functions, and we give their exact expressions for the two body case. The extension to the N body case is also discussed. In the Minkoskian coordinates the superparticles move freely, and in particular the fermionic coordinates $Θ(ξ^N_{(i)})$ are constants, whose values can be fixed by using the monodromy properties. While the bosonic part of the supergeodesic equations are obtained, as in gravity, by measuring the bosonic distance in Minkowskian space-time, we find that the fermionic geodesic equations can be defined only by requiring that a non-perturbative divergence of the $X^M = X^M(x^N)$ mapping cancels out on the world-lines of the superparticles.
description: 29 pages, LaTeX, no figures
On Gauge Invariance and Ward Identities for the Wilsonian Renormalisation Group
Creators: name: Litim, Daniel F.
name: Pawlowski, Jan M.
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate non-Abelian gauge theories within a Wilsonian Renormalisation Group approach. The cut-off term inherent in this approach leads to a modified Ward identity (mWI). It is shown that this mWI is compatible with the flow and that the full effective action satisfies the usual Ward identity (WI). The universal 1-loop beta-function is derived within this approach and the extension to the 2-loop level is briefly outlined.
description: 4 pages, latex, talk presented by J. M. Pawlowski at QCD 98, Montpellier, July 2-8, 1998; to be published in Nucl. Phys. B (Proc. Suppl.), reference updated
A nonextensive approach for understanding the van der Waals' equation
Creators: name: Zheng, Lining
name: Du, Jiulin
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: In order to improve the teaching of the course of statistical physics in universities, in this article we introduce nonextensive statistics, a new statistical theory about complex systems. We study the two modification coefficients a and b in the van der Waals' equation in nonextensive statistics and thus understand the possible relation between the van der Waals' equation and the nonextensivity. We express these coefficients when a real gas is regarded as the nonextensive gas and then relate them to the q-parameter in nonextensive statistics. Furthermore, we derive the q-parameter of a real gas, which contain the intermolecular Lennard-Jones potential, but also strongly depend on the state parameter and molecular number of the gas. From the new statistical physics, we show that the nonextensivity plays a significant role in the coefficients of the van der Waals' equation if the gas contains limited number of molecules or the gas is regarded as a few-body system. This article is suitable to read for senior undergraduate students, graduate students and teachers who teach the course of statistical physics in universities.
description: 7 pages, 34 references
Quantum Langevin equation from forward--backward path integral
Creators: name: Kleinert, H.
name: Shabanov, S. V.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Quantum Physics (quant-ph)
subject: Condensed Matter (cond-mat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The quantum Langevin equation is derived from the Feynman-Veron forward--backward path integral representation for a density matrix of a quantum system in a thermal oscillator bath. We exhibit the mechanism by which the classical, $c$-valued noise in the Feynman-Vernon theory turns into an operator-valued quantum noise fulfilling characteristic commutation relation necessary for the unitarity of the time evolution in the quantum Langevin equation.
title: Greener than Thou: How the Rhetoric of the Green Food Market Reinforces Socioeconomic Hierarchies through the Illusion of Moral Superiority
Creators: name: Corp, Piper
Publisher: name: George Mason University
Year: 2009
Subjects: subject: Green consumerism
subject: Rhetoric
subject: Self-representation
subject: Green marketing
subject: Organic food
subject: Environmentalism

description: The market for “green” foods has expanded in recent years, largely due to the powerful rhetoric it employs. The rhetorical strategy behind green consumerism draws on deeply embedded cultural narratives to assert a rift between consumers and nature, a rift that is both initially unavoidable and entirely resolvable through acts of consumption. Green consumption is thus presented as an opportunity for enlightenment (e.g. living in harmony with nature) and political activism (e.g. protecting nature by supporting sustainable agriculture). Drawing on the theories of Lyotard and Debord, this thesis suggests that these two features create an occasion particularly well-suited for acts of differential representation. Consumption, in other words, provides consumers with the feeling of social responsibility and spiritual ascendance, which together create an illusion of moral superiority. By definition, this superiority only has meaning with reference to an amoral other, a role inhabited in this case by non-green consumers. This discourse is particularly problematic because of the significant price difference between green and non-green products—individuals without the financial means to purchase green products are recast as amoral consumers. A moral hierarchy emerges on top of the existing socioeconomic hierarchy, creating what appears to be a morally justified elite. It is ultimately this discourse, rather than a desire for environmental reform, that sustains green consumerism.
The Proton Spin Puzzle: A Status Report
Creators: name: Cheng, Hai-Yang
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The proton spin puzzle inspired by the EMC experiment and its present status are closely examined. Recent experimental progress is reviewed. Various factorization schemes due to the ambiguity arising from the axial anomaly are discussed. Some misconceptions in the literature about the $\MS$ factorization scheme are clarified. It is stressed that the polarized nucleon structure function $g_1(x)$ is independent of the factorization scheme chosen in defining the quark spin density. Consequently, the anomalous gluon and sea-quark interpretations for the deviation of the observed first moment of $g_1^p(x)$ from the Ellis-Jaffe sum rule are equivalent. While it is well known that the total quark spin in the chiral-invariant (CI) factorization scheme (e.g. the improved parton model) can be made to be close to the quark model expectation provided that the gluon spin is positive and large enough, it is much less known that, contrary to the gauge-invariant scheme (e.g. the MSbar scheme), the quark orbital angular momentum in the CI scheme deviates even farther from the relativistic quark model prediction. Recent developments in the NLO analysis of polarized DIS data, orbital angular momentum and lattice calculations of the proton spin content are briefly sketched.
description: 22 pages, 2 figures, invited plenary talk presented at the 2000 Annual Meeting of the Physical Society of ROC, National Cheng-Kung University, Taiwan, ROC, January 31 - February 1, 2000
Additional file 1 of Transcriptome analysis reveals gene responses to herbicide, tribenuron methyl, in Brassica napus L. during seed germination
Creators: name: Wang, Liuyan
name: Wang, Ruili
name: Lei, Wei
name: Wu, Jiayi
name: Li, Chenyang
name: Shi, Hongsong
name: Meng, Lijiao
name: Yuan, Fang
name: Zhou, Qingyuan
name: Cui, Cui
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Plant Biology

description: Additional file 1 Table S1. Quality and annotation of RNA-seq assembly.
Meson Properties in a renormalizable version of the NJL model
Creators: name: Mota, Andre L.
name: Nemes, M. Carolina
name: Hiller, Brigitte
name: Walliser, Hans
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In the present paper we implement a non-trivial and renormalizable extension of the NJL model. We discuss the advantages and shortcomings of this extended model compared to a usual effective Pauli-Villars regularized version. We show that both versions become equivalent in the case of a large cutoff. Various relevant mesonic observables are calculated and compared.
description: 13 pages, 3 Postscript figures
Topological phase diagram of the disordered 2XY model in presence of generalized Dzyaloshinskii-Moriya Interaction
Creators: name: Habibi, Alireza
name: Ghadimi, Rasoul
name: Jafari, S. A.
name: Rouhani, S.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Topological index of a system specifies gross features of the system. However, in situations such as strong disorder where by level repulsion mechanism the spectral gap is closed, the topological indices are not well-defined. In this paper, we show that the localization length of zero modes determined from appropriate use of transfer matrix method reveals much more information than the topological index. The localization length can provide not only information about the topological index of the Hamiltonian itself, but it can also provide information about the topological indices of the related Hamiltonians. As a case study, we study a generalized XY model (2XY model) plus a generalized Dziyaloshinskii-Moriya-like (DM) interaction that after fermionization breaks the time-reversal invariance and is parameterized by $ϕ$. The {\em parent} Hamiltonian at $ϕ=0$ which belongs to BDI class is indexed by integer winding number while the $ϕ\ne 0$ {\em daughter} Hamiltonian which belongs to class D is specified by a $Z_2$ index $ν=\pm 1$. We show that the localization length in addition to determining the $Z_2$ can count the number of Majorana zero modes left over at the boundary of the daughter Hamiltonian -- which are not protected by winding number anymore. Therefore the localization length outperforms the standard topological indices in two respects: (i) it is much faster and more accurate to calculate and (ii) it can count the winding number of the parent Hamiltonian by looking into the edges of the daughter Hamiltonian.
description: please compile with included .bbl file
title: Investigation of DPA Resistance of Block RAMs in FPGAs
Creators: name: Shah, Shaunak
Publisher: name: George Mason University
Year: 2010
Subjects: subject: DPA
subject: Block RAMs
subject: Side channel
subject: Countermeasures

description: Security at low cost is an important factor for cryptographic hardware implementations. Unfortunately, the security of cryptographic implementations is threatened by Side Channel Analysis (SCA). SCA attempts to discover the secret key of a device by exploiting implementation characteristics and bypassing the algorithm’s mathematical security. Differential Power Analysis (DPA) is a type of SCA, which exploits the device’s power consumption characteristics. Several countermeasures to DPA have been proposed, however, all of them increase security at the cost of increased area which in-turn leads to increased power consumption and reduced throughput. FPGAs are popular due to their reconfigurability, lower development cost, off-the-shelf availability and shorter time to market. Block RAMs are large memories in FPGAs that are commonly used as ROM, FIFO, Look-up tables, etc. In this paper we explore the DPA resistance of Block RAMs and verify if their usage can improve the security of block ciphers such as the Advanced Encryption Standard (AES). We implemented a small test circuit comprised of elements from AES on Xilinx Spartan 3E FPGA and discovered that moving essential parts of AES from look-up tables (LUT) and distributed RAMs to Block RAMs yields about 26 times increase in DPA resistance without any increase in the area. On the contrary it reduces the LUT based area consumption by a factor of 4 and increases speed 1.4 times. Subsequently the same techniques when applied to a standard S-Box and a T-Box implementation of AES showed similar results. The security increased about 9 times, slice area got reduced about 4 times and speed increased about 1.18 times.
Phosphorus skipping effect on productivity, profitability and sustainability of rice-wheat cropping systems in Indo-Gangetic plains of India
Creators: name: Tripathi, Subhash Chandra
name: Chander, Subhash
name: Meena, Raj Pal
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Plant Biology

description: A field experiment was conducted for eight years at ICAR-Indian Institute of Wheat and Barley Research, Karnal, Haryana, India to study the skipping effect of P application on productivity, profitability and sustainability of rice-wheat cropping system. Rice yield and biomass were 8.35% and 6.6% higher where cowpea was grown after wheat compared to rice-vegetable pea-wheat crop sequence, respectively. Phosphorus application to rice or wheat or both crops exhibited at par rice grain yield, biomass, harvest index. Phosphorus application to both crops or only in rice crop produced maximum and significantly higher wheat yield (4.62 t ha−1) as compared to P application only to wheat (4.48 t ha−1). Eight years growing of green gram, cowpea and vegetable pea increased the organic carbon content 42.89, 16.38 and 4.57 %, respectively compared to the initial level. Skipping of P to either crop, by considering 13.5 million ha rice-wheat area, will save approximately Rs 40,500 million (Rs = Indian rupee) or US $ 623 million ($ = Rs 65) per year. Air pollution may be checked, due to saving on diesel in transportation of P fertilizer, to the tune of 60,383 tonnes of CO2 per year by reducing emission of one of important global warming gas.
MAKTABGACHA TA'LIMNI RIVOJLANTIRISHDA KOMPETENSIYAVIY YONDASHUVLAR
Creators: name: Valiyeva, F.R.
Publisher: name: Zenodo
Year: 2024

description: O‘zbekiston Respublikasining “Maktabgacha ta’lim va tarbiya to‘g‘risida”gi qonunida belgilanganidek, “Maktabgacha yoshdagi bolalarning sog‘lom, har tomonlama kamol topib shakllanishi, o‘qishga intilish hissini oshirish, muntazam ta’lim olishga tayyorlash, uzluksiz ta’limning keyingi bo‘g‘inlarida o‘qishni davom ettirishi uchun zamin hozirlash, qolaversa, mustaqil fikrlash va o‘z fikrini erkin bayon etish ko‘nikmasini shakllantirishda maktabgacha ta’limning roli muhim. Zero, maktabgacha bo‘lgan yosh bola shaxsining jismoniy, psixologik va ijtimoiy jihatdan shakllanishining asosiy davridir.
Solution of the Specific Model of Five-Body Problem to Investigate the Effective Alpha-Nucleon Interaction in a Partial-wave Analysis
Creators: name: Pouya, E. Ahmadi
name: Rajabi, A. A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In this paper, we have solved a simple specific model of the five-body problem in the framework of the Yakubovsky equations, restricted to the configurations of the alpha-nucleon types only, to investigate the effective interaction between an inert alpha-particle and a neutron. In general case, the Yakubovsky scheme for the solution of the five-body system leads to a set of four coupled equations related to four independent configurations, which can be restricted to two coupled ones, to describe the effective alpha-nucleon structure model, namely an inert four-body alpha-core and a nucleon. Hence, in such a model, the other configurations will not be taken into account. To calculate the binding energies of the five-body system in the model of alpha- nucleon structure, the two coupled equations are represented in the momentum space on the basis of the Jacobi momenta. After an explicit evaluation of the two coupled integral equations in a partial-wave analysis, the obtained equations are the starting point for a numerical calculation as an eigenvalue equation form, using typical iteration method. In the first step to the calculations, i.e. applying some spin-independent potential models, some obtained binding energy differences between the four-body as an alpha-particle and the five-body as an alpha-nucleon systems suggest that a simple effective interaction between an inert alpha-particle and a nucleon is attractive and of about 13 MeV. In addition, the represented binding energy results with respect to the regarded spin-independent potentials are in fair agreement with the obtained results from other methods.
description: PACS. No: 21.45.+v, 21.30.Fe, 21.30.-x, 21.10.Dr http://www.actaphys.uj.edu.pl/findarticle?series=Reg&vol=48&page=1279. arXiv admin note: text overlap with arXiv:nucl-th/0605063, arXiv:1009.2319, arXiv:0704.2056 by other authors
On tree form-factors in (supersymmetric) Yang-Mills theory
Creators: name: Selivanov, K. G.
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: {\it Perturbiner}, that is, the solution of field equations which is a generating function for tree form-factors in N=3 $(N=4)$ supersymmetric Yang-Mills theory, is studied in the framework of twistor formulation of the N=3 superfield equations. In the case, when all one-particle asymptotic states belong to the same type of N=3 supermultiplets (without any restriction on kinematics), the solution is described very explicitly. It happens to be a natural supersymmetrization of the self-dual perturbiner in non-supersymmetric Yang-Mills theory, designed to describe the Parke-Taylor amplitudes. In the general case, we reduce the problem to a neatly formulated algebraic geometry problem (see Eqs(\ref{5.15i}),(\ref{5.15ii}),(\ref{5.15iii})) and propose an iterative algorithm for solving it, however we have not been able to find a closed-form solution. Solution of this problem would, of course, produce a description of all tree form-factors in non-supersymmetric Yang-Mills theory as well. In this context, the N=3 superfield formalism may be considered as a convenient way to describe a solution of the non-supersymmetric Yang-Mills theory, very much in the spirit of works by E.Witten \cite{Witten} and by J.Isenberg, P.B.Yasskin and P.S.Green \cite{2}.
description: 17 pages, Latex, the form of citation in the abstract have been corrected by xxx.lanl.gov request
Stable Branched Electron Flow
Creators: name: Braem, B A
name: Gold, C
name: Hennel, S
name: Röösli, M
name: Berl, M
name: Dietsche, W
name: Wegscheider, W
name: Ensslin, K.
name: Ihn, T
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The pattern of branched electron flow revealed by scanning gate microscopy shows the distribution of ballistic electron trajectories. The details of the pattern are determined by the correlated potential of remote dopants with an amplitude far below the Fermi energy. We find that the pattern persists even if the electron density is significantly reduced such that the change in Fermi energy exceeds the background potential amplitude. The branch pattern is robust against changes in charge carrier density, but not against changes in the background potential caused by additional illumination of the sample.
description: Accepted for publication in New Journal of Physics
title: Environmental influences on neural systems of relational complexity
Creators: name: Kalbfleisch, M. Layne
name: DeBettencourt, Megan T.
name: Kopperman, Rebecca
name: Banasiak, Meredith
name: Roberts, Joshua M.
name: Halavi, Maryam
Publisher: name: Frontiers
Year: 2013
Subjects: subject: Event-related fMRI
subject: Heuristic processing
subject: Prefrontal cortex
subject: Reasoning
subject: Color perception
subject: Relational complexity
subject: Visual contrast
subject: Constructivist learning

description: Constructivist learning theory contends that we construct knowledge by experience and that environmental context influences learning. To explore this principle, we examined the cognitive process relational complexity (RC), defined as the number of visual dimensions considered during problem solving on a matrix reasoning task and a well-documented measure of mature reasoning capacity. We sought to determine how the visual environment influences RC by examining the influence of color and visual contrast on RC in a neuroimaging task. To specify the contributions of sensory demand and relational integration to reasoning, our participants performed a non-verbal matrix task comprised of color, no-color line, or black-white visual contrast conditions parametrically varied by complexity (relations 0, 1, 2). The use of matrix reasoning is ecologically valid for its psychometric relevance and for its potential to link the processing of psychophysically specific visual properties with various levels of RC during reasoning. The role of these elements is important because matrix tests assess intellectual aptitude based on these seemingly context-less exercises. This experiment is a first step toward examining the psychophysical underpinnings of performance on these types of problems. The importance of this is increased in light of recent evidence that intelligence can be linked to visual discrimination. We submit three main findings. First, color and black-white visual contrast (BWVC) add demand at a basic sensory level, but contributions from color and from BWVC are dissociable in cortex such that color engages a “reasoning heuristic” and BWVC engages a “sensory heuristic.” Second, color supports contextual sense-making by boosting salience resulting in faster problem solving. Lastly, when visual complexity reaches 2-relations, color and visual contrast relinquish salience to other dimensions of problem solving.
Learning to Optimize under Non-Stationarity
Creators: name: Cheung, Wang Chi
name: Simchi-Levi, David
name: Zhu, Ruihao
Publisher: name: arXiv
Year: 2018
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: We introduce algorithms that achieve state-of-the-art \emph{dynamic regret} bounds for non-stationary linear stochastic bandit setting. It captures natural applications such as dynamic pricing and ads allocation in a changing environment. We show how the difficulty posed by the non-stationarity can be overcome by a novel marriage between stochastic and adversarial bandits learning algorithms. Defining $d,B_T,$ and $T$ as the problem dimension, the \emph{variation budget}, and the total time horizon, respectively, our main contributions are the tuned Sliding Window UCB (\texttt{SW-UCB}) algorithm with optimal $\widetilde{O}(d^{2/3}(B_T+1)^{1/3}T^{2/3})$ dynamic regret, and the tuning free bandit-over-bandit (\texttt{BOB}) framework built on top of the \texttt{SW-UCB} algorithm with best $\widetilde{O}(d^{2/3}(B_T+1)^{1/4}T^{3/4})$ dynamic regret.
description: This version fixed an error in the proof of Lemma 1 with Assumption 4 of arXiv:2103.05750
Simple Realization Of The Fredkin Gate Using A Series Of Two-body Operators
Creators: name: Chau, H. F.
name: Wilczek, F.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Quantum Physics (quant-ph)
subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: The Fredkin three-bit gate is universal for computational logic, and is reversible. Classically, it is impossible to do universal computation using reversible two-bit gates only. Here we construct the Fredkin gate using a combination of six two-body reversible (quantum) operators.
description: Revtex 3.0, 7 pages, 3 figures appended at the end, please refer to the comment lines at the beginning of the manuscript for reasons of replacement
Adversarial Personalized Ranking for Recommendation
Creators: name: He, Xiangnan
name: He, Zhankui
name: Du, Xiaoyu
name: Chua, Tat-Seng
Publisher: name: arXiv
Year: 2018
Subjects: subject: Information Retrieval (cs.IR)
subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Item recommendation is a personalized ranking task. To this end, many recommender systems optimize models with pairwise ranking objectives, such as the Bayesian Personalized Ranking (BPR). Using matrix Factorization (MF) --- the most widely used model in recommendation --- as a demonstration, we show that optimizing it with BPR leads to a recommender model that is not robust. In particular, we find that the resultant model is highly vulnerable to adversarial perturbations on its model parameters, which implies the possibly large error in generalization. To enhance the robustness of a recommender model and thus improve its generalization performance, we propose a new optimization framework, namely Adversarial Personalized Ranking (APR). In short, our APR enhances the pairwise ranking method BPR by performing adversarial training. It can be interpreted as playing a minimax game, where the minimization of the BPR objective function meanwhile defends an adversary, which adds adversarial perturbations on model parameters to maximize the BPR objective function. To illustrate how it works, we implement APR on MF by adding adversarial perturbations on the embedding vectors of users and items. Extensive experiments on three public real-world datasets demonstrate the effectiveness of APR --- by optimizing MF with APR, it outperforms BPR with a relative improvement of 11.2% on average and achieves state-of-the-art performance for item recommendation. Our implementation is available at: https://github.com/hexiangnan/adversarial_personalized_ranking.
description: SIGIR 2018
Mapping forest tree species in high resolution UAV-based RGB-imagery by means of convolutional neural networks
Creators: name: Schiefer, Felix
name: Kattenborn, Teja
name: Frick, Annett
name: Frey, Julian
name: Schall, Peter
name: Koch, Barbara
name: Schmidtlein, Sebastian
Publisher: name: Karlsruher Institut für Technologie (KIT)
Year: 2021

description: With consumer-grade unmanned aerial vehicles (UAVs) on the rise, which enable easy, time-flexible, and cost-effective acquisition of very high-resolution RGB data, the mapping of forest tree species using solely RGB imagery is of high interest, as it does not rely on sophisticated sensors, does not require extensive calibration and preprocessing and, therefore, enables the application by a wide audience. In combination with convolutional neural networks (CNNs), which particularly exploit spatial patterns and, therefore, highly benfit from very high-resolution remote sensing, this offers great potential for accurately mapping forest tree species.

Here, we present the findings of our recent study, in which we used very high-resolution RGB imagery from UAVs in combination with CNNs for the mapping of forest tree species. In this study, we used multicopter UAVs to obtain very high-resolution (<2 cm) RGB imagery over 51 ha of temperate forests in the Southern Black Forest region, and the Hainich National Park in Germany. To fully harness the end-to-end learning capabilities of CNNs, we used a semantic segmentation approach (U-net) that concurrently segments and classifies tree species from imagery. With a diverse dataset in terms of study areas, site conditions, illumination properties, and phenology, we accurately mapped nine tree species, three genus-level classes, deadwood, and forest floor (mean F1-score 0.73). We found that a coarser spatial resolution substantially reduced the model accuracy (mean F1-score of 0.26 at 32 cm resolution) and that larger tile sizes during CNN training negatively affected the model accuracies for underrepresented classes. Additional height information from normalized digital surface models slightly increased the model accuracy but simultaneously increased computational complexity and data requirements. Our results highlight the key role that UAVs can play in the mapping of forest tree species, given that air- and spaceborne remote sensing currently does not provide comparable spatial resolutions. Given the end-to-end learning capabilites of CNNs extensive preprocessing becomes partly obsolete, whereas the use of a large and diverse dataset facilitates a high degree of generalization of the CNN, thus fostering transferability. The synergy of high-resolution UAV imagery and CNN provide a fast and flexible yet accurate means of mapping forest tree species.

In this contribution, we will give an outlook on how the combination of UAV imagery and CNNs can be integrated with multitemporal satellite imagery (Sentinel-1 and Sentinel-2) in order to extrapolate the UAV-based tree species maps to larger areas.
Interactions between broiler chickens, soil parameters and short rotation coppice willow in a free-range system
Creators: name: Stadig, Lisanne M.
name: Tuyttens, Frank A. M.
name: T. Bas Rodenburg
name: Vandecasteele, Bart
name: Ampe, Bart
name: Reubens, Bert
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Medicine
subject: Ecology
subject: FOS: Biological sciences

description: Planting short rotation coppice willows (SRCW) in chickens’ free-range areas could have several advantages for the chickens, environment and farmer. Our aim was to test the effects of combining SRCW and chickens on free-range use, soil conditions and SRCW growth. A free-range chicken area was partially planted with a grass/clover mixture, and partially with SRCW. Chickens preferred to range in SRCW compared to grassland. No effects of periodical chicken presence on SRCW growth were observed. Total mineral N (Nmin) was affected by interactions between vegetation type, location, and soil depth; it was generally higher in SRCW than in grassland and in areas close to the chicken houses. Nmin did not appear to accumulate in the soil over the years, but there were strong indications for higher risk of N leaching to deeper soil layers and possibly to groundwater close to the houses and in SRCW. SRCW was beneficial for the chickens, but the combination needs to be studied further with a focus on strategies for preventing nutrient leaching to groundwater.
Lithium in the Hyades L5 brown dwarf 2MASSJ04183483+2131275
Creators: name: Lodieu, N.
name: Rebolo, R.
name: Perez-Garrido, A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: From the luminosity, effective temperature, and age of the Hyades brown dwarf 2MASSJ04183483+2131275 (2M0418), sub-stellar evolutionary models predict a mass in the range 39-55 Jupiter masses (M_Jup) which is insufficient to produce any substantial lithium burning except for the very upper range >53 M_Jup. Our goal is to measure the abundance of lithium in this object, test the consistency between models and observations and refine constraints on the mass and age of the object. We used the 10.4-m Gran Telescopio Canarias (GTC) with its low-dispersion optical spectrograph to obtain ten spectra of 2277s each covering the range 6300-10300 Angstroms with a resolving power of R~500. In the individual spectra, which span several months, we detect persistent unresolved H_alpha in emission with pseudo equivalent widths (pEW) in the range 45-150 Angstroms and absorption lines of various alkalis with the typical strengths found in objects of L5 spectral type. The lithium resonance line at 6707.8 Angstroms is detected with pEW of 18+/-4 Angstroms in 2M0418 (L5). We determine a lithium abundance of log N(Li) = 3.0+/-0.4 dex consistent with a minimum preservation of 90% of this element which confirms 2M0418 as a brown dwarf with a maximum mass of 52 M_Jup. We infer a maximum age for the Hyades of 775 Myr from a comparison with the BHAC15 models. Combining recent results from the literature with our study, we constrain the mass of 2M0418 to 45-52 M_Jup and the age of the cluster to 580-775 Myr (1 sigma) based on the lithium depletion boundary method.
description: Accepted for publications to A&A. Version after language edition but not proofs-edited; 5 pages, 4 figures, 2 tables
Supersymmetry and Bosonization in Three Dimensions
Creators: name: Edelstein, Jose D.
name: Nunez, Carlos
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss on the possible existence of a supersymmetric invariance in purely fermionic planar systems and its relation to the fermion-boson mapping in three-dimensional quantum field theory. We consider, as a very simple example, the bosonization of free massive fermions and show that, under certain conditions on the masses, this model displays a supersymmetric-like invariance in the low energy regime. We construct the purely fermionic expression for the supercurrent and the non-linear supersymmetry transformation laws. We argue that the supersymmetry is absent in the limit of massless fermions where the bosonized theory is non-local.
description: 12 pages, LaTeX, no figures, to appear in Physics Letters B