cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Gluon Propagator in Lattice Landau Gauge with twisted boundary conditions
Creators: name: Tok, Torsten
name: Langfeld, Kurt
name: Reinhardt, Hugo
name: von Smekal, Lorenz
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We investigate the infrared behaviour of the gluon propagator in Landau gauge on a lattice with twisted boundary conditions. Analytic calculations using Dyson-Schwinger equations, exact renormalization group and stochastic quantization show that the gluon propagator in Landau gauge approaches zero for small momentum. On the other hand lattice calculations and calculations on a four-torus seem to give rise to a non-zero limit. One possible reason for this difference is the existence of zero-momentum fluctuation modes which potentially give a massive contribution to the gluon propagator. Our simulations show that with twisted boundary conditions these zero-momentum modes are suppressed and the gluon propagator becomes smaller than in a periodic ensemble.
description: 5 pages, 4 figures, talk given at 23rd International Symposium on Lattice Field Theory: Lattice 2005, Trinity College, Dublin, Ireland, 25-30 Jul 2005 (topology and confinement)
EFFECTS OF GOVERNMENT PAYMENTS TO FARMERS ON REAL AGRICULTURAL ASSET VALUES IN THE 1980s
Creators: name: Moss, Charles B.
name: Shonkwiler, J. S.
name: Moss, Charles B.
name: Shonkwiler, J. S.
Publisher: name: Unknown
Year: 1988
Subjects: subject: Agricultural and Food Policy
subject: Financial Economics
subject: Political Economy
subject: Informational Content
subject: Bayesian Vector Autoregression
subject: Real Asset Values
subject: Government Payments

description: This study determines the effect of government payments on real agricultural asset values using a Bayesian vector autoregression. By examining the statistical significance of past government payments to agriculture, and average and historical effects of innovations in government payments to agriculture, this study finds increases in government payments to agriculture decreased real asset values slightly in the 1980s.
Agrilus violacellus Thomson 1879
Creators: name: Curletti, Gianfranco
name: Migliore, Letizia
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Buprestidae
Agrilus
Agrilus violacellus

description: Agrilus violacellus Thomson, 1879
 Agrilus violacellus Thomson, 1879: 67 (holotypus MNHN).
 Agrilus bathyllus Obenberger, 1933 syn. nov. (holotypus NMPC).
 Material examinado: 13 exs., BRASIL, Santa Catarina, Rio Vermelho, XI.1950 Dirings leg. ; idem, XII.1950; idem, I.1952; idem, XII.1952; idem XI.1958; Joinville, Dirings leg. ; Timbó, IV.1956, Dirings leg. ; São
 Bento do Sul, XII.1950, Dirings leg. ; Paraná, Rolândia, I.1950, Dirings leg.
description: Published as part of Curletti, Gianfranco & Migliore, Letizia, 2014, O gênero Agrilus Curtis, 1829 nas coleções do Museu de Zoologia da Universidade de São Paulo (Coleoptera: Buprestidae), pp. 81-106 in Papéis Avulsos de Zoologia (São Paulo) (São Paulo) 54 (8) on pages 99-100, DOI: 10.1590/0031-1049.2014.54.08, http://zenodo.org/record/4656297
Quantum Phase Transitions in Anti-ferromagnetic Planar Cubic Lattices
Creators: name: Wellard, Cameron
name: Orus, Roman
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Motivated by its relation to an $\cal{NP}$-hard problem, we analyze the ground state properties of anti-ferromagnetic Ising-spin networks embedded on planar cubic lattices, under the action of homogeneous transverse and longitudinal magnetic fields. This model exhibits a quantum phase transition at critical values of the magnetic field, which can be identified by the entanglement behavior, as well as by a Majorization analysis. The scaling of the entanglement in the critical region is in agreement with the area law, indicating that even simple systems can support large amounts of quantum correlations. We study the scaling behavior of low-lying energy gaps for a restricted set of geometries, and find that even in this simplified case, it is impossible to predict the asymptotic behavior, with the data allowing equally good fits to exponential and power law decays. We can therefore, draw no conclusion as to the algorithmic complexity of a quantum adiabatic ground-state search for the system.
description: 7 pages, 13 figures, final version (accepted for publication in PRA)
Convolutional Approximate Message-Passing
Creators: name: Takeuchi, Keigo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: This letter proposes a novel message-passing algorithm for signal recovery in compressed sensing. The proposed algorithm solves the disadvantages of approximate message-passing (AMP) and orthogonal/vector AMP, and realizes their advantages. AMP converges only in a limited class of sensing matrices while it has low complexity. Orthogonal/vector AMP requires a high-complexity matrix inversion while it is applicable for a wide class of sensing matrices. The key feature of the proposed algorithm is the so-called Onsager correction via a convolution of messages in all preceding iterations while the conventional message-passing algorithms have correction terms that depend only on messages in the latest iteration. Thus, the proposed algorithm is called convolutional AMP (CAMP). Ill-conditioned sensing matrices are simulated as an example in which the convergence of AMP is not guaranteed. Numerical simulations show that CAMP can improve the convergence property of AMP and achieve high performance comparable to orthogonal/vector AMP in spite of low complexity comparable to AMP.
description: The paper was accepted for publication on IEEE Signal Process. Lett
Finite Connectivity Attractor Neural Networks
Creators: name: Wemmenhove, B.
name: Coolen, A. C. C.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study a family of diluted attractor neural networks with a finite average number of (symmetric) connections per neuron. As in finite connectivity spin glasses, their equilibrium properties are described by order parameter functions, for which we derive an integral equation in replica symmetric (RS) approximation. A bifurcation analysis of this equation reveals the locations of the paramagnetic to recall and paramagnetic to spin-glass transition lines in the phase diagram. The line separating the retrieval phase from the spin-glass phase is calculated at zero temperature. All phase transitions are found to be continuous.
description: 17 pages, 4 figures
Additional file 1 of A different vision of translational research in biomarker discovery: a pilot study on circulatory mitochondrial proteins as Parkinson’s disease potential biomarkers
Creators: name: Anjo, Sandra I.
name: Santos, Patrícia Valério Dos
name: Rosado, Luiza
name: Baltazar, Graça
name: Baldeiras, Inês
name: Pires, Diana
name: Gomes, Andreia
name: Januário, Cristina
name: Castelo-Branco, Miguel
name: Grãos, Mário
name: Manadas, Bruno
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Inorganic Chemistry

description: Additional file 1: Supplementary Methods. Document containing: 1) detailed information on the methods used in the present work.
Нетрадиционный подход расчета эффективности аграрной продукции
Non-traditional approach to assessment of efficiency of agricultural production
Creators: name: Dudoglo, Tatiana
name: Dudoglo, Tatiana
Publisher: name: Unknown
Year: 2018
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: profitability
subject: sales price
subject: fixed and variable costs
subject: profit
subject: crop yield
subject: cost of production
subject: sales volume
subject: Moldova

description: The purpose of the study is to substantiate some features of planning and analysis of the efficiency of crop production based on the coefficient of advance of the threshold of profitability, as well as the development of practical recommendations for their direct use by specialists of agricultural enterprises (a case study from Moldova). It is emphasized that the indicators of the efficiency of products in agriculture, such as profit per one hectare of crop land or one centner of production, can be calculated precisely without requiring data for crop yield and total production volume of cultivated crops. It is established that the indicators of economic efficiency of produced and realized production depend on the degree of removal (deviation) of the actual yield from the break-even point (profitability threshold). An indicator named as the break-even excess coefficient is used for evaluating the given degree of deviation. An inter-relationship between the value of the break-even excess and the indicators of profit per one hectare of land and one centner of production is determined. The given interrelationship is presented in formulas, in a table and on a graph. Based on the example of a specific agricultural enterprise the calculations of given inter-relationships for leading crop types are performed. In order to identify whether the given inter-relation is specific for the conditions of agricultural production in a particular enterprise, the calculations of analogous indicators are made for two neighboring enterprises likewise. Besides, the inter-relationship between the financial safety margin and operational leverage on the one hand and the coefficient of exceeding the break-even level on the other hand is presented. Our research will allow the professionals at agricultural enterprises to determine the degree of revenues per one unit of area or unit of production as well the values of financial safety margin and operational leverage across of all product nomenclature based on the values of coefficient of exceeding the break-even level.
Application and Optimization of Power to Gas System for Inland Transportation Through River Nile
Creators: name: Mohab Ibrahim
Publisher: name: figshare
Year: 2021
Subjects: subject: 91305 Energy Generation, Conversion and Storage Engineering
subject: FOS: Mechanical engineering
subject: 90607 Power and Energy Systems Engineering (excl. Renewable Power)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: 90608 Renewable Power and Energy Systems Engineering (excl. Solar Cells)

description: this paper discusses the technical and economic feasibility of replacing the traditional diesel engine, used in driving a bulk carrier barge with a load capacity of 850 tons operating in the river Nile on the Alexandria/Aswan route, with a renewable energy-based system that utilizes Solar Panels as an energy source and hydrogen gas as an energy storage medium (P2G).
THE DISTRIBUTION OF STANDARDIZED FUTURES PRICE CHANGES
Creators: name: Venkateswaran, Meenakshi
name: Brorsen, B. Wade
name: Hall, Joyce A.
name: Venkateswaran, Meenakshi
name: Brorsen, B. Wade
name: Hall, Joyce A.
Publisher: name: Unknown
Year: 1988
Subjects: Demand and Price Analysis
Research Methods/ Statistical Methods

description: The observed non-normality of futures price changes has been attributed to non-constant variance. This paper tests whether the non-normality is due to changing variances or additional factors. The data are adjusted for heteroskedasticity and the stability-under-addition test of stable distributions performed on the original and the rescaled data sets. Rescaled data are less leptokurtic than the original data, but the rescaled data are still not normal. Thus, factors other than changing variance may also be responsible for the observed leptokurticity of daily futures returns.
Управлінський потенціал організаційної культури у розв’язанні ділових конфліктів
Management potential of organizational culture in resolving business conflicts
Creators: name: Kopytova, Iryna
name: Kopytova, Iryna
Publisher: name: Unknown
Year: 2018
Subjects: subject: Agribusiness
subject: Labor and Human Capital
subject: business conflicts
subject: organizational culture
subject: conflict-management
subject: organization relations
subject: organizational values
subject: Ukraine

description: The purpose of the article is to determine peculiarities, essence, content, dialectic nature of correlation of business conflicts and organizational culture in developing countries (in the case of Ukraine). A special attention draws to preconditioned application of management potential of organization culture for maintaining management potential of organization culture for ensuring conflict management in business companies. The research showed that the internal reason for any business conflict cores in frameworks of interpersonal relations in the staff, which are conditioned under the impact of organization culture. This justifies its management significance in preventing and constructively resolving business conflicts in companies. The analysis of practice of management certifies that ignoring high management potential of organization culture and its inactivity in enterprises of Ukraine is a source of conflict-relatedness of social relations. The author suggests the principles to be followed in the formation of organizational culture. It will help to reduce the level of conflict in Ukrainian business organizations and will increase their efficiency and competitiveness.
A Diagnostic for Bias in Linear Mixed Model Estimators Induced by Dependence Between the Random Effects and the Corresponding Model Matrix
Creators: name: Karl, Andrew T.
name: Zimmerman, Dale L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistics Theory (math.ST)
subject: Applications (stat.AP)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: We explore how violations of the often-overlooked standard assumption that the random effects model matrix in a linear mixed model is fixed (and thus independent of the random effects vector) can lead to bias in estimators of estimable functions of the fixed effects. However, if the random effects of the original mixed model are instead also treated as fixed effects, or if the fixed and random effects model matrices are orthogonal with respect to the inverse of the error covariance matrix (with probability one), or if the random effects and the corresponding model matrix are independent, then these estimators are unbiased. The bias in the general case is quantified and compared to a randomized permutation distribution of the predicted random effects, producing an informative summary graphic for each estimator of interest. This is demonstrated through the examination of sporting outcomes used to estimate a home field advantage.
description: 26 pages, 4 figures, 2 tables
Agrilus yeti Curletti & Migliore 2014, sp. nov.
Creators: name: Curletti, Gianfranco
name: Migliore, Letizia
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Buprestidae
Agrilus
Agrilus yeti

description: Agrilus yeti sp. nov.
 (Fig. 15)
 Etimologia: o corpo pubescênte lembra a imagem do “abominável homem das neves”.
Comprimento 6,9 mm. Fronte larga, brônzeo- -escura, sulcada na parte posterior e deprimida na anterior; duas placas lisas, medianas e margens internas dos olhos, revestidas por uma pubescência dourada. Clípeo com a mesma pubescência. Olhos grandes, com genas pequenas cobertas por pubescência branca. Carena pré-umeral arqueada, interrompida, com comprimento cerca de 1/3 do pronoto. Carenas marginais separadas na base. Mentoneira com margem anterior amplamente sinuada. Processo prosternal com pubescência branca intensa; lados paralelos. O ápice elitral acobreado, visto dorsalmente. Laterotergitos com pubescencia amarelo-ouro. Lado ventral do corpo preto com Mesosterno com pubescência branca uniforme. Manchas grandes da mesma pubescência nos lados dos urosternitos. Pernas pretas com reflexos brônzeo-metálicas; unhas anteriotes bífidas e posteriores denticuladas. Metatarso mais curto que a metatíbia: metarsômero I mais longo do que os três seguintes (I> II + III + IV), metarsômero V quase tão longo quanto o I (II + III + IV <V). Edeago estreito, com lados subparalelos e lobo mediano acuminado (Fig. 26).
 Descrição dos parátipos: Comprimento 7,4-8 mm. Não foram encontradas diferenças dignas de descrição.
 Material tipo: Holótipo ♂: BRASIL, Santa Catarina, Rio Vermelho, IX.1950, Dirings (MZUSP). Parátipos: ♂ BRASIL, Santa Catarina, Joinville, 1 ex., Dirings (MZUSP); ♂, São Bento do Sul, 1 ex., V.1949, Dirings leg. (MZUSP); ♂, Amazonas, Benjamin Constant (Rio Javari), 1 ex., XI.1961, Dirings (MCCI).
 Discussão: As dimensões, juntamente com a distribuição e a cor da pubescência, tornam a espécie inconfundível para a fauna brasileira.
Espécie de ampla distribuição, sendo encontrada tanto na Amazônia quanto no sul da Mata Atlântica, fato este, que traz algumas dúvidas, tanto que a localidade amazônica deve ser confirmada.
description: Published as part of Curletti, Gianfranco & Migliore, Letizia, 2014, O gênero Agrilus Curtis, 1829 nas coleções do Museu de Zoologia da Universidade de São Paulo (Coleoptera: Buprestidae), pp. 81-106 in Papéis Avulsos de Zoologia (São Paulo) (São Paulo) 54 (8) on page 100, DOI: 10.1590/0031-1049.2014.54.08, http://zenodo.org/record/4656297
Joint lattice QCD - dispersion theory analysis confirms the quark-mixing top-row unitarity deficit
Creators: name: Seng, Chien-Yeah
name: Feng, Xu
name: Gorchtein, Mikhail
name: Jin, Lu-Chang
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Recently, the first ever lattice computation of the $γW$-box radiative correction to the rate of the semileptonic pion decay allowed for a reduction of the theory uncertainty of that rate by a factor of $\sim3$. A recent dispersion evaluation of the $γW$-box correction on the neutron also led to a significant reduction of the theory uncertainty, but shifted the value of $V_{ud}$ extracted from the neutron and superallowed nuclear $β$ decay, resulting in a deficit of the CKM unitarity in the top row. A direct lattice computation of the $γW$-box correction for the neutron decay would provide an independent cross-check for this result but is very challenging. Before those challenges are overcome, we propose a hybrid analysis, converting the lattice calculation on the pion to that on the neutron by a combination of dispersion theory and phenomenological input. The new prediction for the universal radiative correction to free and bound neutron $β$-decay reads $Δ_R^V=0.02477(24)$, in excellent agreement with the dispersion theory result $Δ_R^V=0.02467(22)$. Combining with other relevant information, the top-row CKM unitarity deficit persists.
description: Version to appear in Physical Review D, Rapid Communication
Agriloides agoretus Curletti & Migliore 2014, comb. nov.
Creators: name: Curletti, Gianfranco
name: Migliore, Letizia
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Buprestidae
Agriloides
Agriloides agoretus

description: Agriloides agoretus (Obenberger, 1935) comb. nov.
 Agrilus agoretus Obenberger, 1935: 133
 Material examinado: BRASIL, Goiás, Jataí (Faz. Cachoeirinha), 1 ex., X.1962, Exp. do Departamento de Zoologia.
 Exame do typus (NMPC), mostrou que a espécie descrita como Agrilus na realidade pertence ao gênero Agriloides Kerremans, 1903.
description: Published as part of Curletti, Gianfranco & Migliore, Letizia, 2014, O gênero Agrilus Curtis, 1829 nas coleções do Museu de Zoologia da Universidade de São Paulo (Coleoptera: Buprestidae), pp. 81-106 in Papéis Avulsos de Zoologia (São Paulo) (São Paulo) 54 (8) on page 100, DOI: 10.1590/0031-1049.2014.54.08, http://zenodo.org/record/4656297
Additional file 2 of Association of acute kidney injury with readmissions after hospitalization for acute exacerbation of chronic obstructive pulmonary disease: a population-based study
Creators: name: Hirayama, Atsushi
name: Goto, Tadahiro
name: Hasegawa, Kohei
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Developmental Biology
subject: Marine Biology
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 2 : Table S1. Characteristics of patients hospitalized for acute exacerbation of chronic obstructive pulmonary disease by readmission status. Table S2. Characteristics of patients hospitalized for acute exacerbation of chronic obstructive pulmonary disease by acute kidney injury (complete case analysis). Table S3. Hazard ratio for all-cause readmission during 30-day periods after index hospitalization for acute exacerbation of chronic obstructive pulmonary disease, according to acute kidney injury, overall and stratified by age category and sex (complete case analysis). Table S4. Hazard ratio for all-cause readmission during 90-day periods after index hospitalization for acute exacerbation of chronic obstructive pulmonary disease, according to acute kidney injury, overall and stratified by age category and sex (complete case analysis). Table S5. Hazard ratio for all-cause readmission during 30-day and 90-day periods after index hospitalization for acute exacerbation of chronic obstructive pulmonary disease, according to acute kidney injury and acute kidney injury with dialysis. Table S6. The ten most frequent principal diagnoses of 90-day readmissions in patient hospitalized for acute exacerbation of chronic obstructive pulmonary disease, stratified by acute kidney injury.
Agrilus asiaticus Kerremans 1898
Creators: name: Curletti, Gianfranco
name: Migliore, Letizia
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Buprestidae
Agrilus
Agrilus asiaticus

description: Agrilus asiaticus Kerremans, 1898 (sub planefasciatus Obenberger, 1936)
 Agrilus asiaticus Kerremans, 1898: 178.
 syn. planefasciatus Obenberger, 1936: 115.
 Material examinado: JAPÃO, Tokyo, Niffara?, 1 ex., 17.VI.1962, N. Nakamura leg., Nakamura det.
description: Published as part of Curletti, Gianfranco & Migliore, Letizia, 2014, O gênero Agrilus Curtis, 1829 nas coleções do Museu de Zoologia da Universidade de São Paulo (Coleoptera: Buprestidae), pp. 81-106 in Papéis Avulsos de Zoologia (São Paulo) (São Paulo) 54 (8) on page 102, DOI: 10.1590/0031-1049.2014.54.08, http://zenodo.org/record/4656297
Application and Optimization of Power to Gas System.pdf
Creators: name: Mohab Ibrahim
Publisher: name: figshare
Year: 2021
Subjects: subject: 91305 Energy Generation, Conversion and Storage Engineering
subject: FOS: Mechanical engineering
subject: 90607 Power and Energy Systems Engineering (excl. Renewable Power)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: 90608 Renewable Power and Energy Systems Engineering (excl. Solar Cells)

description: this paper discusses the technical and economic feasibility of replacing the traditional diesel engine, used in driving a bulk carrier barge with a load capacity of 850 tons operating in the river Nile on the Alexandria/Aswan route, with a renewable energy-based system that utilizes Solar Panels as an energy source and hydrogen gas as an energy storage medium (P2G).
Socio-economic Impact of Watershed Development in Kanpur
Creators: name: Babu, Govind
name: Singh, R. K.
name: Singh, Babu
name: Babu, Govind
name: Singh, R. K.
name: Singh, Babu
Publisher: name: Unknown
Year: 2004
Subjects: Production Economics
Resource /Energy Economics and Policy

description: The socio-economic impact of a watershed project in Kanpur Dehat district of Uttar Pradesh has been evaluated in a 'before and after' framework. The implementation of the project has facilitated area expansion during the post-rainy season, which was fallow before initiation of the project. The productivity of most of the crops has also increased. Besides, the project could arrest degradation of the land, which was very severe in the command area and was acting as a limitation in improving the crop productivity. Livestock population has also increased considerably. These improvements in the agricultural activity have led to an increase in the onfarm employment opportunities for the farmers of the area. Smallholders have been benefited the most from the project.
Multi-graded Galilean conformal algebras
Creators: name: Ragoucy, Eric
name: Rasmussen, Jorgen
name: Raymond, Christopher
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Galilean conformal algebras can be constructed by contracting a finite number of conformal algebras, and enjoy truncated $\mathbb{Z}$-graded structures. Here, we present a generalisation of the Galilean contraction procedure, giving rise to Galilean conformal algebras with truncated $\mathbb{Z}^{\otimesσ}$-gradings, $σ\in\mathbb{N}$. Detailed examples of these multi-graded Galilean algebras are provided, including extensions of the Galilean Virasoro and affine Kac-Moody algebras. We also derive the associated Sugawara constructions and discuss how these examples relate to multivariable extensions of Takiff algebras. We likewise apply our generalised contraction prescription to tensor products of $W_3$ algebras and obtain new families of higher-order Galilean $W_3$ algebras.
description: 17 pages
Quantum Dots Attached to Ferromagnetic Leads: Exchange Field, Spin Precession, and Kondo Effect
Creators: name: König, Jürgen
name: Martinek, Jan
name: Barnas, Jozef
name: Schön, Gerd
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Spintronics devices rely on spin-dependent transport behavior evoked by the presence of spin-polarized electrons. Transport through nanostructures, on the other hand, is dominated by strong Coulomb interaction. We study a model system in the intersection of both fields, a quantum dot attached to ferromagnetic leads. The combination of spin-polarization in the leads and strong Coulomb interaction in the quantum dot gives rise to an exchange field acting on electron spins in the dot. Depending on the parameter regime, this exchange field is visible in the transport either via a precession of an accumulated dot spin or via an induced level splitting. We review the situation for various transport regimes, and discuss two of them in more detail.
description: 20 pages, 6 figures, to be published in Lecture Notes in Physics
Effect of graphene nanoplatelets and accelerated weathering on the mechanical and shape memory behaviour of 3D printed components
Creators: name: Alsaadi, Mohamad
name: Hinchy, Eoin
name: Mc Carthy, Conor
name: Devine, Declan M.
Publisher: name: University of Limerick
Year: 2024
Subjects: classificationCode: 40
subject: Engineering

description: The need for sustainable materials has increased the adoption of 3D printing techniques in various applications due to their valuable advantages of obtaining complex design, fast site production, with significantly less waste, and thus more cost-effective, compared to traditional polymer processing techniques like moulding and extrusion. The objective of this work is to investigate the effect of functionalised graphene nanoplatelets and accelerated weathering ageing on the tensile, Izod impact, fracture toughness and shape memory behaviour of 3D printed methacrylate-based resin. The accelerated weathering aging of 1000 hrs was conducted on the 3D printed samples. The fracture toughness results in terms of critical stress intensity factor were calculated using single-edge notch bending (SENB) tests. The shape memory (SM) behaviour in terms of shape fixity and shape recovery results were determined using dynamic mechanical analysis (DMA). The results showed good resistance to weathering ageing and enhancement by incorporating functionalised graphene nanoplatelets. The maximum increment values of the tensile strength, impact resistance and critical stress intensity factor were 18%, 25% and 16%, respectively. The glass transition temperature values were slightly increased. The shape fixity ratios and the shape recovery ratios were greater than 97% and 90%, respectively. This study provides new knowledge in expanding and developing 4DPg in various industrial applications like in soft robotics as actuators and thermal sensors.
Symmetries in $B \to D^* \ell ν$ angular observables
Creators: name: Algueró, Marcel
name: Descotes-Genon, Sébastien
name: Matias, Joaquim
name: Novoa-Brunet, Martín
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We apply the formalism of amplitude symmetries to the angular distribution of the decays $B \to D^* \ell ν$ for $\ell=e,μ,τ$. We show that the angular observables used to describe the distribution of this class of decays are not independent in absence of New Physics contributing to tensor operators. We derive sets of relations among the angular coefficients of the decay distribution for the massless and massive lepton cases which can be used to probe in a very general way the consistency among the angular observables and the underlying New Physics at work. We use these relations to access the longitudinal polarisation fraction of the $D^*$ using different angular coefficients from the ones used by Belle experiment. This in the near future can provide an alternative strategy to measure $F_L^{D^*}$ in $B \to D^* τν$ and to understand the relatively high value measured by the Belle experiment. Using the same symmetries, we identify three observables which may exhibit a tension if the experimental value of $F_L^{D^*}$ remains high. We discuss how these relations can be exploited for binned measurements. We also propose a new observable that could test for specific scenarios of New Physics generated by light right-handed neutrinos. Finally we study the prospects of testing these relations based on the projected experimental sensitivity of new experiments.
description: We included a discussion on detection of presence of light right handed neutrinos and experimental prospects of the new experimental determination of FL, also more references are added. Final version to appear in JHEP. 39 pages and 9 figures
Steleuthera maremboca Barnard 1964
Creators: name: Berge, Jørgen
Publisher: name: Zenodo
Year: 2004
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Amphipoda
Stegocephalidae
Steleuthera
Steleuthera maremboca

description: Steleuthera maremboca Barnard, 1964
(figure 4)
 Steleuthera maremboca Barnard, 1964: 15.
The description complements Barnard’s original description (1964: 15), based upon examination of the holotype. Only those appendages that needed redescription are presented.
 Description
 Epistome. Epistome laterally smooth. Epistomal plate (medial keel) produced into a small elongate medial ridge covering the entire epistome.
 Mouthparts. Mouthparts not elongate. Mandibles with incisors transverse, partly toothed; left lacinia mobilis present, strongly toothed and distally produced.
 Maxilla 1 palp articulation absent, distally with one short simple seta; outer plate distally subrectangular, ST in a 5/3 arrangement with two parallel rows.
 Maxilla 2 outer plate not gaping and geniculate, setae distally straight; inner plate with setae-rows A and B apressed together; row C present, row D absent.
 Maxilliped palp four-articulate, article 2 distally unproduced. Articles 1–3 without long slender setae. Inner plate distally with inner corner weakly produced, one nodular seta present. Outer plate with outer setae-row present, setae short and simple; distal setae-group absent.
 Labrum about as long as broad, left lobe reduced.
 Labium distally broad, distal finger absent.
 Pereopods and coxae. Coxal plates and basis on the pereopods smooth. Pereopod 6 basis posteriorly rudimentary expanded, medially without a row of long plumose setae; posterior margin of basis smooth.
 Oostegites and gills. Gills present on pereopods 2–7, oostegites on pereopods 2–5.
 Urosome. Articulation between urosomites 2 and 3 present; uropod 3 peduncle longer than telson, outer ramus two-articulate.
description: Published as part of Berge, Jørgen, 2004, The subfamily Andaniopsinae (Crustacea: Amphipoda: Stegocephalidae): description of one new species and redescription of Steleuthera maremboca, pp. 1385-1395 in Journal of Natural History 38 (11) on pages 1390-1392, DOI: 10.1080/0022293031000155368, http://zenodo.org/record/4658568
Study of the spin-pump-induced inverse spin-Hall effect in Bi doped n-type Si
Creators: name: Ezhevskii, A. A.
name: Guseinov, D. V.
name: Soukhorukov, A. V.
name: Novikov, A. V.
name: Yurasov, D. V.
name: Gusev, N. S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: An inverse spin Hall effect (ISHE) in n-type silicon was observed experimentally when conduction electrons were scattered on the spin-orbit potential of bismuth. The spin current in the silicon layer was generated by excitation of the magnetization precession during ferromagnetic resonance in a thin permalloy (Py) layer deposited on a Si layer doped by phosphor and bismuth. From the angular dependences of the dc voltage for different Py/n-Si:Bi structures aligned along the [011] or [100] crystal axes, we were able to distinguish the planar Hall effect (PHE) and ISHE contributions. The ISHE dc voltage signal was proportional to sinθ*sin2θ product for the structure aligned to the [011] crystal axis and to sinθ*cos2θ for the [100] direction. In addition, the PHE dc voltage was observed for the angles corresponded to the sin2θ dependence. It means that for silicon as a many-valley semiconductor, the scattering of spins due to the spin-orbit potential induced by shallow donor in n-type material is dependent on the orientation of the valley axes relative to the direction of the magnetic field.
QCD vacuum topological susceptibility in a non-local chiral quark model
Creators: name: Dorokhov, A. E.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The topological susceptibility of QCD vacuum is studied in the framework of a covariant chiral quark model with non-local quark-quark interaction. The relation of the first moment of topological susceptibility χ'(0) and the 'spin crisis' problem is briefly discussed. It is shown, in particular, that one always gets the inequality χ'(0)>χ'_{OZI}.
description: Talk at SPIN-03 Workshop, Dubna, September 16-20, 2003, to appear in Proceedings; 6 pages, 1 figure
The ALMA Spectroscopic Survey in the HUDF: The Cosmic Dust and Gas Mass Densities in Galaxies up to $z\sim3$
Creators: name: Magnelli, Benjamin
name: Boogaard, Leindert
name: Decarli, Roberto
name: Gónzalez-López, Jorge
name: Novak, Mladen
name: Popping, Gergö
name: Smail, Ian
name: Walter, Fabian
name: Aravena, Manuel
name: Assef, Roberto J.
name: Bauer, Franz Erik
name: Bertoldi, Frank
name: Carilli, Chris
name: Cortes, Paulo C.
name: da Cunha, Elisabete
name: Daddi, Emanuele
name: Díaz-Santos, Tanio
name: Inami, Hanae
name: Ivison, Robert J.
name: Fèvre, Olivier Le
name: Oesch, Pascal
name: Riechers, Dominik
name: Rix, Hans-Walter
name: Sargent, Mark T.
name: van der Werf, Paul
name: Wagg, Jeff
name: Weiss, Axel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Using the deepest 1.2 mm continuum map to date in the Hubble Ultra Deep Field obtained as part of the ALMA Spectroscopic Survey (ASPECS) large program, we measure the cosmic density of dust and implied gas (H$_{2}+$H I) mass in galaxies as a function of look-back time. We do so by stacking the contribution from all $H$-band selected galaxies above a given stellar mass in distinct redshift bins, $ρ_{\rm dust}(M_\ast>M,z)$ and $ρ_{\rm gas}(M_\ast>M,z)$. At all redshifts, $ρ_{\rm dust}(M_\ast>M,z)$ and $ρ_{\rm gas}(M_\ast>M,z)$ grow rapidly as $M$ decreases down to $10^{10}\,M_\odot$, but this growth slows down towards lower stellar masses. This flattening implies that at our stellar mass-completeness limits ($10^8\,M_\odot$ and $10^{8.9}\,M_\odot$ at $z\sim0.4$ and $z\sim3$), both quantities converge towards the total cosmic dust and gas mass densities in galaxies. The cosmic dust and gas mass densities increase at early cosmic time, peak around $z\sim2$, and decrease by a factor $\sim4$ and 7, compared to the density of dust and molecular gas in the local universe, respectively. The contribution of quiescent galaxies -- i.e., with little on-going star-formation -- to the cosmic dust and gas mass densities is minor ($\lesssim10\%$). The redshift evolution of the cosmic gas mass density resembles that of the star-formation rate density, as previously found by CO-based measurements. This confirms that galaxies have relatively constant star-formation efficiencies (within a factor $\sim2$) across cosmic time. Our results also imply that by $z\sim0$, a large fraction ($\sim90\%$) of dust formed in galaxies across cosmic time has been destroyed or ejected to the intergalactic medium.
description: 32 pages, 13 figures, Accepted for publication in ApJ
Additional file 1 of Association of acute kidney injury with readmissions after hospitalization for acute exacerbation of chronic obstructive pulmonary disease: a population-based study
Creators: name: Hirayama, Atsushi
name: Goto, Tadahiro
name: Hasegawa, Kohei
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Developmental Biology
subject: Marine Biology
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1 : Figure S1. Patient flow of the study. AECOPD, acute exacerbation of chronic obstructive pulmonary disease.
Ab-initio studies of exciton $g$ factors: Monolayer transition metal dichalcogenides in magnetic fields
Creators: name: Deilmann, Thorsten
name: Krüger, Peter
name: Rohlfing, Michael
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The effect of a magnetic field on the optical absorption in semiconductors has been measured experimentally and modeled theoretically for various systems in previous decades. We present a new first-principles approach to systematically determine the response of excitons to magnetic fields, i.e. exciton $g$ factors. By utilizing the $GW$-Bethe-Salpeter equation methodology we show that $g$ factors extracted from the Zeeman shift of electronic bands are strongly renormalized by many-body effects which we trace back to the extent of the excitons in reciprocal space. We apply our approach to monolayers of transition metal dichalcogenides (MoS$_2$, MoSe$_2$, MoTe$_2$, WS$_2$, and WSe$_2$) with strongly bound excitons for which $g$ factors are weakened by about 30%.
Short timescale behavior of colliding heavy nuclei at intermediate energies
Creators: name: Hudan, S.
name: deSouza, R. T.
name: Ono, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: An Antisymmetrized Molecular Dynamics model is used to explore the collision of $^{114}$Cd projectiles with $^{92}$Mo target nuclei at E/A=50 MeV over a broad range in impact parameter. The atomic number (Z), velocity, and emission pattern of the reaction products are examined as a function of the impact parameter and the cluster recognition time. The non-central collisions are found to be essentially binary in character resulting in the formation of an excited projectile-like fragment (PLF$^*$) and target-like fragment (TLF$^*$). The decay of these fragments occurs on a short timescale, 100$\le$t$\le$300 fm/c. The average excitation energy deduced for the PLF$^*$ and TLF$^*$ `saturates for mid-central collisions, 3.5$\le$b$\le$6 fm, with its magnitude depending on the cluster recognition time. For short cluster recognition times (t=150 fm/c), an average excitation energy as high as $\approx$6 MeV is predicted. Short timescale emission leads to a loss of initial correlations and results in features such as an anisotropic emission pattern of both IMFs and alpha particles emitted from the PLF$^*$ and TLF$^*$ in peripheral collisions.
description: 19 pages, 17 figures
Transforming Institutions for Sustainable Development of Natural Resources Programmes
Creators: name: Marothia, Dinesh K.
name: Marothia, Dinesh K.
Publisher: name: Unknown
Year: 2004
Subjects: Resource /Energy Economics and Policy
Teaching/Communication/Extension/Profession

description: In India, the natural resources development programmes are manages under different property regimes, viz, state, common property or private property regimes. The failures of purely community and solely government controlled natural resources management has led to the distributed or shared governance. In this paper, the outcome of the renewable common property resources (CPRs) development programmes has been presented under different property regimes for the upliftment of rural poor with examples from the newly created state of Chhattisgarh. The role of the institutional arrangement, types of property rights regimes and authority systems in managing the renewable CPRs development programmes has been analysed based on the studies conducted by the author during the last 15 years in this region of Chhattisgarh. The sites of the case studies were visited by the author during the initial stages of the programme implementation and were revisited in May/June 2004. Through these case studies, the efficacy of alternative management systems or alternative governance structures in managing CPRs-based development programmes has been assessed in a dynamic framework. The case studies discussed are: (i) Micro-Minor Irrigation Tanks, (ii) Village Woodlots, (iii) Community Fish Ponds, (iv) Non-Timber Forest Products, and (v) Participatory Irrigation Management. The outcomes of these case studies have suggested that the policy designers of institutional arrangements for CPRs development programmes in the rural areas should have in-depth understanding of the strengths and weaknesses of the alternative property rights regimes. Distributed governance though seems to be the most appropriate for designing CPRs management programmes, serious theoretical and empirical studies are needed for testing the efficacy of the alternative models.
Impact Assessment of Processing of Pearl Millet for Value-Addition and Development of Health Foods
Creators: name: Khatkar, R. K.
name: Mittal, S. B.
name: Singh, V. K.
name: Khatkar, R. K.
name: Mittal, S. B.
name: Singh, V. K.
Publisher: name: Unknown
Year: 2004
Subjects: Food Consumption/Nutrition/Food Safety
Research and Development/Tech Change/Emerging Technologies

description: The study has assessed the impact of value-addition in pearl millet in terms of monetary benefits and nutritional values. It has revealed that partial replacement of basic ingredient with pearl millet (in flour or blanched grain form) in different food products can provide food and nutrition security besides economic benefits. The costs of these products were lower even after a nominal 5% higher costing. The value-addition in pearl millet in all the baked, traditional and diabetic products has brought positive changes in total economic surplus in both the rural and urban households in the state of Haryana. The benefits by the total economic surplus method have been estimated as Rs 157.72 lakh within a period of ten years after the implementation of the project. It will provide the net present value (NPV) of Rs 259.52 lakh within ten years. The internal rate of return (IRR) has turned out to be as high as 45 per cent. The Pay Back Period (PBP) has been observed as 3 years. The benefit cost ratio (BCR) has been found to be 1: 8.68. These findings have indicated that the project has high economic viability. However, there is a need to gear up the extension agencies to encourage the adoption of this upgraded technology to the target domain, especially in south-western part of the state.
Agrilus derasofasciatus Lacordaire
Creators: name: Curletti, Gianfranco
name: Migliore, Letizia
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Buprestidae
Agrilus
Agrilus derasofasciatus

description: Agrilus derasofasciatus Lacordaire in
 Boisduval & Lacordaire, 1835
 Agrilus derasofasciatus Lacordaire in Boisduval & Lacordaire, 1835: 613.
Europa largamente distribuída.
description: Published as part of Curletti, Gianfranco & Migliore, Letizia, 2014, O gênero Agrilus Curtis, 1829 nas coleções do Museu de Zoologia da Universidade de São Paulo (Coleoptera: Buprestidae), pp. 81-106 in Papéis Avulsos de Zoologia (São Paulo) (São Paulo) 54 (8) on page 102, DOI: 10.1590/0031-1049.2014.54.08, http://zenodo.org/record/4656297
Electronic structure of the quasi-one-dimensional organic conductor TTF-TCNQ
Creators: name: Sing, M.
name: Schwingenschlögl, U.
name: Claessen, R.
name: Blaha, P.
name: Carmelo, J. M. P.
name: Martelo, L. M.
name: Sacramento, P. D.
name: Dressel, M.
name: Jacobsen, C. S.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the electronic structure of the quasi-one-dimensional organic conductor TTF-TCNQ by means of density-functional band theory, Hubbard model calculations, and angle-resolved photoelectron spectroscopy (ARPES). The experimental spectra reveal significant quantitative and qualitative discrepancies to band theory. We demonstrate that the dispersive behavior as well as the temperature-dependence of the spectra can be consistently explained by the finite-energy physics of the one-dimensional Hubbard model at metallic doping. The model description can even be made quantitative, if one accounts for an enhanced hopping integral at the surface, most likely caused by a relaxation of the topmost molecular layer. Within this interpretation the ARPES data provide spectroscopic evidence for the existence of spin-charge separation on an energy scale of the conduction band width. The failure of the one-dimensional Hubbard model for the {\it low-energy} spectral behavior is attributed to interchain coupling and the additional effect of electron-phonon interaction.
description: 18 pages, 9 figures