cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A Kinetics Driven Commensurate - Incommensurate Transition
Creators: name: Chaudhuri, Abhishek
name: Sreeram, P. A.
name: Sengupta, Surajit
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The steady state structure of an interface in an Ising system on a square lattice placed in a {\em non-uniform} external field, shows a commensurate -incommensurate transition driven by the velocity of the interface. The non-uniform field has a profile with a fixed shape which is designed to stabilize a flat interface, and is translated with velocity $v_{e}$. For small velocities the interface is stuck to the profile and is rippled with a periodicity which may be either commensurate or incommensurate with the lattice parameter of the square lattice. For a general orientation of the profile, the local slope of the interface locks in to one of infinitely many rational directions producing a devil's staircase structure. These ``lock-in'' or commensurate structures dissappear as $v_e$ increases through a kinetics driven commensurate - incommensurate transition. For large $v_e$ the interface becomes detached from the field profile and coarsens with Kardar-Parisi-Zang exponents. The complete phase-diagram and the multifractal spectrum corresponding to these structures have been obtained numerically together with several analytic results concerning the dynamics of the rippled phases. Our work has technological implications in crystal growth and the production of surfaces with various desired surface morphologies.
description: 5 figures, submitted to Phase Transitions
Natural Resources, Economic Growth and Geography
Creators: name: González-Val, Rafael
name: Pueyo, Fernando
name: González-Val, Rafael
name: Pueyo, Fernando
Publisher: name: Unknown
Year: 2018
Subjects: subject: Research Methods/ Statistical Methods
subject: Industrial Location
subject: Endogenous Growth
subject: Renewable Resource
subject: Geography

description: In this paper we discuss the relationship between economic growth and natural resources at a global level, taking into account geography. With this aim, our model integrates elements of the theories of endogenous growth, natural resources and new economic geography. We find that an increase in the world growth rate can lead to a higher depletion of the natural resources following an increase in the world demand due to expansion in population. However, the consideration of geography and growth mechanisms make the relationship between growth and natural resources more complex, and can even lead to the opposite conclusion when the forces behind growth are different from world demand. Indeed, either a reduction in transport costs or an increase in R&D productivity appears to be able to generate a faster growth compatible with a lower depletion of natural resources.
New phenolic compounds from Calothamnus quadrifidus R.Br. aerial parts and their antioxidant activity
Creators: name: Reham R. Ibrahim
name: Ibrahim, Haitham A.
name: Shabana, Samah S.
name: Doaa G El-Hosari
name: Ali, Sahar A.
name: Shahenda Mahgoub
name: Moharram, Fatma A.
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
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: Developmental Biology

description: Two new compounds calothphenone (1) and 6-methoxy kaempferol 3-O-(6″-E-p-coumaroyl)-β- d-glucopyranoside (6-methoxy tiliroside) (2) along with six known compounds viz gallic acid (3), methyl gallate (4), kaempferol 3-O-(6″-E-p-coumaroyl)-β-d-glucopyranoside (tiliroside) (5), castalagin (6), kaempferol (7) and quercetin (8) were isolated from the ethyl acetate fraction (EAF) of 80% aqueous methanol extract of Calothamnus quadrifidus aerial parts. Their structure was established based on different chemical and spectroscopic techniques (1H-/13C-NMR and 2D NMR). Antioxidant activity for EAF and compounds 1, 2 and 5 was evaluated using DPPH, superoxide radical and nitric oxide (NO) inhibition methods. EAF exhibited strong activity to inhibit DPPH, superoxide and NO radicals. Moreover, all tested compounds demonstrated a close high ability to inhibit superoxide and NO radicals in comparison to ascorbic acid, but they exerted lower activity towards DPPH radical.
Deepfake Video Forensics based on Transfer Learning
Creators: name: U, Rahul
name: M, Ragul
name: K, Raja Vignesh
name: K, Tejeswinee
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Deeplearning has been used to solve complex problems in various domains. As it advances, it also creates applications which become a major threat to our privacy, security and even to our Democracy. Such an application which is being developed recently is the "Deepfake". Deepfake models can create fake images and videos that humans cannot differentiate them from the genuine ones. Therefore, the counter application to automatically detect and analyze the digital visual media is necessary in today world. This paper details retraining the image classification models to apprehend the features from each deepfake video frames. After feeding different sets of deepfake clips of video fringes through a pretrained layer of bottleneck in the neural network is made for every video frame, already stated layer contains condense data for all images and exposes artificial manipulations in Deepfake videos. When checking Deepfake videos, this technique received more than 87 per cent accuracy. This technique has been tested on the Face Forensics dataset and obtained good accuracy in detection.
description: This submission has been removed by arXiv administrators due to copyright infringement
China’s Energy Policy & Investments and their Impact on the Sub-Saharan African Region
Creators: name: Grimoux, Valentin
name: Grimoux, Valentin
Publisher: name: Unknown
Year: 2018
Subjects: subject: Resource /Energy Economics and Policy
subject: Economic Development
subject: Energy Security
subject: International Cooperation
subject: Investments

description: This research provides a grasp of China’s energy needs and their implications for SSA countries in order to give a balanced and better understanding of its role on the continent. More specifically, the aim is to understand why and how China is involved in the SSA energy sector and what are the benefits and the costs of its engagement. On the one hand, a clearer knowledge of how the Chinese investment system works will help to assess the scope of the Chinese strategy and the role of the government for the set of actors that are committed in Africa. On the other hand, by digging deeper into Chinese energy projects in Africa, one will be able to appreciate to what extent this relationship can be considered a win-win, whereby each party is equally benefitting from cooperation by ensuring the smooth development of the African and Chinese economies.
Are Renewables Profitable in 2030? A Comparison between Wind and Solar across Europe
Creators: name: Bertsch, Valentin
name: Di Cosmo, Valeria
name: Bertsch, Valentin
name: Di Cosmo, Valeria
Publisher: name: Unknown
Year: 2018
Subjects: subject: Resource /Energy Economics and Policy
subject: Renewable Energy Targets
subject: Renewable Electricity Generation
subject: RES-E Target, EU Electricity Market
subject: Profitability

description: The European Union has set ambitious targets for emission reduction and the penetration of renewable energy, including the electricity generation sector as one of the major emitters of CO2. After a period of subsidy-driven investments, the costs of renewables decreased strongly making investments more attractive. Since European countries differ strongly in terms of natural resources, we analyse the profitability of wind onshore and offshore and solar PV across Europe to determine where it is optimal to invest in the future and to understand which factors drive the profitability of the investments. We use a power systems model to simulate the whole European electricity market in 2030. Using the renewable revenues determined by the model, we calculate the internal rate of return to analyse how profitable each technology is in each country. We find that investments in the considered technologies are not homogeneously profitable across Europe. This suggests that cooperation between European countries can be expected to achieve the overall targets at lower costs than nationally-driven approaches. We also find that in many countries, wind onshore and solar PV are profitable by 2030 in absence of any financial support. Wind offshore does not seem to be profitable without financial support.
Concurrent magneto-optical imaging and magneto-transport readout of electrical switching of insulating antiferromagnetic thin films
Creators: name: Schreiber, Felix
name: Baldrati, Lorenzo
name: Schmitt, Christin
name: Ramos, Rafael
name: Saitoh, Eiji
name: Lebrun, Romain
name: Kläui, Mathias
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We demonstrate stable and reversible current induced switching of large-area ($> 100\;μm^2$) antiferromagnetic domains in NiO/Pt by performing concurrent transport and magneto-optical imaging measurements in an adapted Kerr microscope. By correlating the magnetic images of the antiferromagnetic domain changes and magneto-transport signal response in these current-induced switching experiments, we disentangle magnetic and non-magnetic contributions to the transport signal. Our table-top approach establishes a robust procedure to subtract the non-magnetic contributions in the transport signal and extract the spin-Hall magnetoresistance response associated with the switching of the antiferromagnetic domains enabling one to deduce details of the antiferromagnetic switching from simple transport measurements.
description: 12+2 pages, 3+2 figures, V2: Corrected equation for R_transv calculation, results unaffected
Development of Research and Innovation Ecosystem in the GCC States: A Case of Qatar
Creators: name: Rahman, Md Mizanur
Publisher: name: Zenodo
Year: 2025

description: In a world where innovation dictates progress, an era defined by rapid technological advancements and a geographical context that dictates an urgent need for sustainable development, nations have recognized the critical role that research and innovation ecosystems play in driving their economic growth and societal progress. Qatar, a small but strategically positioned country within the Gulf Cooperation Council (GCC), is no exception in the equation of transitioning to a knowledge-based economy. Towards this end and in order to establish itself as a leader in research and innovation, as guided by a visionary leadership that prioritizes knowledge as a cornerstone of national development, Qatar has embarked on an ambitious journey and has recently achieved significant milestones in this arena harnessing its natural bonanza. This research aims to explore the dynamics of Qatar's Research and Innovation Ecosystem (QRIE), examining how leadership influences institutional interactions and contributes to the nation’s burgeoning status as a research and innovation hub.
Additional file 1 of Breastfeeding as a balancing act – pregnant Swedish women’s voices on breastfeeding
Creators: name: Cato, Karin
name: Sylvén, Sara
name: Henriksson, Helena
name: Rubertsson, Christine
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Molecular Biology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Developmental Biology

description: Additional file 1 Supplementary figure. Example of coding.
Additional file 1 of Quantifying the economic cost of antibiotic resistance and the impact of related interventions: rapid methodological review, conceptual framework and recommendations for future studies
Creators: name: Jit, Mark
name: Ng, Dorothy
name: Nantasit Luangasanatip
name: Sandmann, Frank
name: Atkins, Katherine
name: Robotham, Julie
name: Pouwels, Koen
Publisher: name: figshare
Year: 2020
Subjects: subject: Space Science
subject: Medicine
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Marine Biology

description: Additional file 1. Search terms used in the rapid review.
Weakly multiplicative arithmetic functions and the normal growth of groups
Creators: name: Schlage-Puchta, Jan-Christoph
Publisher: name: arXiv
Year: 2019
Subjects: subject: Number Theory (math.NT)
subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: We show that an arithmetic function which satisfies some weak multiplicativity properties and in addition has a non-decreasing or $\log$-uniformly continuous normal order is close to a function of the form $n\mapsto n^c$. As an application we show that a finitely generated, residually finite, infinite group, whose normal growth has a non-decreasing or a $\log$-uniformly continuous normal order is isomorphic to $(\mathbb{Z}, +)$.
Ab initio evaluation of complexation energies for cyclodextrin drug inclusion complexes
Creators: name: Oqmhula, Kenji
name: Hongo, Kenta
name: Maezono, Ryo
name: Ichibha, Tom
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We examined the reliability of exchange-correlation functionals for molecular encapsulations combined by van der Waals forces, comparing their predictions with those of diffusion Monte Carlo method. We established that functionals with D3 dispersion force correction and including sufficient proportion of exact-exchange in long-ranged interaction can comparatively reliably estimate the binding strength. Our finding agrees with a previous ab initio study on argon dimer. However we found that even such functionals may not be able to distinguish the energy differences among different conformations.
A Review of the Occurrence and Causes for Wildfires and Their Impacts on the Geoenvironment
Creators: name: Goli, Venkata Siva Naga Sai
name: Farid, Arvin
name: Alam, Md Khorshed
name: Deniz Akin, Idil
name: Akinleye, Taiwo
name: Chen, Xiaohui
name: Cheng, Qing
name: Cleall, Peter
name: Cuomo, Sabatino
name: Foresta, Vito
name: Ge, Shangqi
name: Iervolino, Luca
name: Iradukunda, Pierrette
name: Luce, Charles H.
name: Koda, Eugeniusz
name: Mickovski, Slobodan B.
name: O’Kelly, Brendan C.
name: John Ricketts, Evan
name: Sadegh, Mojtaba
name: Sarris, Theofilos S.
name: Singh, Devendra N.
name: Singh, Prithvendra
name: Tang, Chao-Sheng
name: Tardio, Guillermo
name: Vaverková, Magdalena Daria
name: Veneris, Max
name: Winkler, Jan
Publisher: name: Institute of Environmental Science and Research
Year: 2024
Subjects: classificationCode: 370299
subject: Climate change science not elsewhere classified

description: Wildfires have short- and long-term impacts on the geoenvironment, including the changes to biogeochemical and mechanical properties of soils, landfill stability, surface- and groundwater, air pollution, and vegetation. Climate change has increased the extent and severity of wildfires across the world. Simultaneously, anthropogenic activities—through the expansion of urban areas into wildlands, abandonment of rural practices, and accidental or intentional fire-inception activities—are also responsible for a majority of fires. This paper provides an overall review and critical appraisal of existing knowledge about processes induced by wildfires and their impact on the geoenvironment. Burning of vegetation leads to loss of root reinforcement and changes in soil hydromechanical properties. Also, depending on the fire temperature, soil can be rendered hydrophobic or hydrophilic and compromise soil nutrition levels, hinder revegetation, and, in turn, increase post-fire erosion and the debris flow susceptibility of hillslopes. In addition to direct hazards, wildfires pollute air and soil with smoke and fire suppression agents releasing toxic, persistent, and relatively mobile contaminants into the geoenvironment. Nevertheless, the mitigation of wildfires’ geoenvironmental impacts does not fit within the scope of this paper. In the end, and in no exhaustive way, some of the areas requiring future research are highlighted.
Distribution of work in isothermal non-equilibrium processes
Creators: name: Speck, Thomas
name: Seifert, Udo
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Diffusive motion in an externally driven potential is considered. It is shown that the distribution of work required to drive the system from an initial equilibrium state to another is Gaussian for slow but finite driving. Our result is obtained by projection method techniques exploiting a small parameter defined as the switching rate between the two states of the system. The exact solution for a simple model system shows that such an expansion may fail in higher orders, since the mean and the variance following from the exact distribution show non-analytic behavior.
Topological isoconductance signatures in Majorana nanowires
Creators: name: Ricco, L. S.
name: Sanches, J. E.
name: Marques, Y.
name: de Souza, M.
name: Figueira, M. S.
name: Shelykh, I. A.
name: Seridonio, A. C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We consider transport properties of a hybrid device composed by a quantum dot placed between normal and superconducting reservoirs, and coupled to a Majorana nanowire: a topological superconducting segment hosting Majorana zero-modes at the opposite ends. It is demonstrated that if topologically protected (nonoverlapping) Majorana zero-modes are formed in the system, zero-bias Andreev conductance through the dot exhibits isoconductance profiles with the shape depending on the spin asymmetry of the coupling between a dot and a topological superconductor. Otherwise, for the topologically trivial situation corresponding to the formation of Andreev bound states, the conductance is insensitive to the spin polarization and the isoconductance signatures disappear. This allows to propose an experimental protocol for distinguishing between isolated Majorana zero-modes and Andreev bound states.
Desreplicação e avaliação da atividade antinociceptiva e anti-inflamatória do extrato hidroetanólico de folhas de Campomanesia xanthocarpa O. Berg
Creators: name: Fabrício Damasceno Leandro
name: Cabral, Layla Dutra Marinho
name: Tallita Marques Machado
name: Koolen, Hector Henrique Ferreira
name: Da Silva, Felipe Moura Araújo
name: Guilhon-Simplicio, Fernanda
name: Da Silva, Marcelo Aparecido
name: Giusti-Paiva, Alexandre
name: De Carvalho Veloso Moura, Clarice
name: Da Silva, Geraldo Alves
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Physiology
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Inorganic Chemistry
subject: Hematology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: 60506 Virology
subject: Cardiology

description: ResumoO campomanesia xanthocarpa, conhecido popularmente como gabiroba, é utilizado como planta medicinal no tratamento de doenças inflamatórias, úlceras, entre outros usos, exigindo estudos para auxiliar na comprovação dessas atividades. Neste estudo, o extrato de folhas de C. xanthocarpa(CxHE) foi submetido a ensaios de lamber patas induzidas por formalina, peritonite induzida por testes de hiperalgesia mecânica induzida por lipopolissacarídeo e carragenina. Na análise química, foram realizadas uma triagem fitoquímica preliminar e a determinação do teor de fenol e flavonóides, além das análises pelos sistemas ESI-MS / MS e HPLC-DAD. O CxHE apresentou compostos como taninos, triterpenóides, esteróides e saponinas e teor de fenóis (35,9 ± 1,3 GAE / g extrato) e flavonóides (23,3 ± 2,1 mg EQ / g extrato). Foram identificados ácido protocatecuico, ácido gálico, galato de etila, quercetina e galato de 3-metil epigalocatequina, alfa e beta-amirinas. CxHE em doses de 10-1000 mg / kg po demonstrou efeitos anti-inflamatórios e antinociceptivos em todos os in vivo ensaios empregados neste estudo.
Self-Enforcing International Environmental Agreements: Adaptation and Complementarity
Creators: name: Rubio, Santiago J.
name: Rubio, Santiago J.
Publisher: name: Unknown
Year: 2018
Subjects: subject: Research Methods/ Statistical Methods
subject: International Environmental Agreements
subject: Mitigation-Adaptation Game
subject: Strategic Complements

description: This paper studies the impact of adaptation on the stability of an international emission agreement. To address this issue we solve a three-stage coalition formation game where in the first stage countries decide whether or not to sign the agreement. Then, in the second stage, signatories (playing together) and non-signatories (playing individually) select their levels of emissions. Finally, in the third stage, each country decides on its level of adaptation non co-operatively. We solve this game for two models. For both, it is assumed that damages are linear with respect to emissions which guarantee that emissions are strategic complements in the second stage of the game. However, for the first model adaptation reduces the marginal damages of emissions in a multiplicative way whereas for the second model the reduction occurs in an additive way. Our analysis shows that the models yield different predictions in terms of participation. In the first case, we find that the larger the gains of full cooperation, the larger the cooperation. However, in the second case, the unique stable agreement we find consists of three countries regardless of the gains of full cooperation. These results suggest that complementarity can play in favor of cooperation but that it is not a sufficient condition to obtain more participation in an emission agreement. Finally, we would like to point out that our research indicates that the way adaptation reduces damages plays a critical role over the outcome of the coalition formation game.
Vortex line in a neutral finite-temperature superfluid Fermi gas
Creators: name: Nygaard, N.
name: Bruun, G. M.
name: Schneider, B. I.
name: Clark, C. W.
name: Feder, D. L.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The structure of an isolated vortex in a dilute two-component neutral superfluid Fermi gas is studied within the context of self-consistent Bogoliubov-de Gennes theory. Various thermodynamic properties are calculated and the shift in the critical temperature due to the presence of the vortex is analyzed. The gapless excitations inside the vortex core are studied and a scheme to detect these states and thus the presence of the vortex is examined. The numerical results are compared with various analytical expressions when appropriate.
description: 8 pages, 6 embedded figures
On kaonic hydrogen. Quantum field theoretic and relativistic covariant approach
Creators: name: Ivanov, A. N.
name: Cargnelli, M.
name: Faber, M.
name: Marton, J.
name: Troitskaya, N. I.
name: Zmeskal, J.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We study kaonic hydrogen, the bound K^-p state A_(Kp). Within a quantum field theoretic and relativistic covariant approach we derive the energy level displacement of the ground state of kaonic hydrogen in terms of the amplitude of K^-p scattering for arbitrary relative momenta. The amplitude of low-energy K^-p scattering near threshold is defined by the contributions of three resonances Lambda(1405), Lambda(1800) and Sigma^0(1750) and a smooth elastic background. The amplitudes of inelastic channels of low-energy K^-p scattering fit experimental data on near threshold behaviour of the cross sections and the experimental data by the DEAR Collaboration. We use the soft-pion technique (leading order in Chiral Perturbation Theory) for the calculation of the partial width of the radiative decay of pionic hydrogen A_(pi p) -> n + gamma and the Panofsky ratio. The theoretical prediction for the Panofsky ratio agrees well with experimental data. We apply the soft-kaon technique (leading order in Chiral Perturbation Theory) to the calculation of the partial widths of radiative decays of kaonic hydrogen A_(Kp) -> Lambda^0 + gamma and A_(Kp) -> Sigma^0 + gamma. We show that the contribution of these decays to the width of the energy level of the ground state of kaonic hydrogen is less than 1%.
description: 33 pages, 1 figure, latex, References are added
Link Prediction: A Graphical Model Approach
Creators: name: Alpago, Daniele
name: Zorzi, Mattia
name: Ferrante, Augusto
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: We consider the problem of link prediction in networks whose edge structure may vary (sufficiently slowly) over time. This problem, with applications in many important areas including social networks, has two main variants: the first, known as positive link prediction or PLP consists in estimating the appearance of a link in the network. The second, known as negative link prediction or NLP consists in estimating the disappearance of a link in the network. We propose a data-driven approach to estimate the appearance/disappearance of edges. Our solution is based on a regularized optimization problem for which we prove existence and uniqueness of the optimal solution.
Exact and linearized refractive index stress-dependence in anisotropic photoelastic crystals
Creators: name: Davì, Fabrizio
Publisher: name: arXiv
Year: 2020
Subjects: subject: Classical Physics (physics.class-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 74B99, 74E10, 74F15, 78A10

description: For the permittivity tensor of photoelastic anisotropic crystals we obtain the exact non-linear dependence on the Cauchy stress tensor. We obtain the same result for its square root whose principal components, the crystal principal refractive index, are the starting point for any photoelastic analysis of transparent crystals. From these exact results then we obtain, in a total general manner, the linearized expressions to within higher-order terms in the stress tensor for both the permittivity tensor and its square root. We finish by showing some relavant examples of both non-linear and linearized relations for optically isotropic, uniaxial and biaxial crystals.
description: 23 pages, 1 figure. Dedicated to Paolo Podio-Guidugli for his 80th birthday
Aperiodic Quantum Random Walks
Creators: name: Ribeiro, Pedro
name: Milman, Perola
name: Mosseri, Remy
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We generalize the quantum random walk protocol for a particle in a one-dimensional chain, by using several types of biased quantum coins, arranged in aperiodic sequences, in a manner that leads to a rich variety of possible wave function evolutions. Quasiperiodic sequences, following the Fibonacci prescription, are of particular interest, leading to a sub-ballistic wavefunction spreading. In contrast, random sequences leads to diffusive spreading, similar to the classical random walk behaviour. We also describe how to experimentally implement these aperiodic sequences.
description: 4 pages and 4 figures
The Severi inequality $K^2\ge 4χ$ for surfaces of maximal Albanese dimension
Creators: name: Pardini, Rita
Publisher: name: arXiv
Year: 2004
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14J29

description: We prove the so-called Severi inequality, stating that the invariants of a minimal smooth complex projective surface of maximal Albanese dimension satisfy: K^2_S >= 4χ(S).
description: Final version: proof slightly simplified, a reference added
A new kernel-based approach for spectral estimation
Creators: name: Zorzi, Mattia
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: The paper addresses the problem to estimate the power spectral density of an ARMA zero mean Gaussian process. We propose a kernel based maximum entropy spectral estimator. The latter searches the optimal spectrum over a class of high order autoregressive models while the penalty term induced by the kernel matrix promotes regularity and exponential decay to zero of the impulse response of the corresponding one-step ahead predictor. Moreover, the proposed method also provides a minimum phase spectral factor of the process. Numerical experiments showed the effectiveness of the proposed method.
Additional file 2 of Unexpected genomic, biosynthetic and species diversity of Streptomyces bacteria from bats in Arizona and New Mexico, USA
Creators: name: Park, Cooper J.
name: Caimi, Nicole A.
name: Buecher, Debbie C.
name: Valdez, Ernest W.
name: Northup, Diana E.
name: Andam, Cheryl P.
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2: Fig. S1. 16S rRNA tree of Streptomyces isolates with bootstrap values.
Additional file 6 of An efficient gene disruption method for the woody plant pathogen Botryosphaeria dothidea
Creators: name: Dong, Bao-Zhu
name: Guo, Li-Yun
Publisher: name: figshare
Year: 2020
Subjects: subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Evolutionary Biology
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified

description: Additional file 6: Table S1. Primers used for vector construction and transformants analysis. The lowercase represented the homologous sequence flanking the restriction sites of SacI and HindIII.
Additional file 5 of An efficient gene disruption method for the woody plant pathogen Botryosphaeria dothidea
Creators: name: Dong, Bao-Zhu
name: Guo, Li-Yun
Publisher: name: figshare
Year: 2020
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology

description: Additional file 5: Fig. S5.Bdo_02540 and Bdo_05381 expression in mycelium cultured for 3, 6, and 9 days on PDA. The expression in 3-day-old culture with mycelium appeared whitish on the underside of the plate was used as the control. The relative expression levels were calculated according to the 2−ΔΔCt method. Bars represent the standard error of three replicates. Different letters represent significant differences according to an ANOVA and Duncan’s method (P
Modeling deswelling, thermodynamics, structure, and dynamics in ionic microgel suspensions
Creators: name: Brito, Mariano E.
name: Denton, Alan R.
name: Nägele, Gerhard
Publisher: name: arXiv
Year: 2019
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Ionic microgel particles in a good solvent swell to an equilibrium size determined by a balance of electrostatic and elastic forces. When crowded, ionic microgels deswell owing to a redistribution of microions inside and outside the particles. The concentration-dependent deswelling affects the interactions between the microgels, and consequently the suspension properties. We present a comprehensive theoretical study of crowding effects on thermodynamic, structural, and dynamic properties of weakly cross-linked ionic microgels in a good solvent. The microgels are modeled as microion- and solvent-permeable colloidal spheres with fixed charge uniformly distributed over the polymer gel backbone, whose elastic and solvent-interaction free energies are described using Flory-Rehner theory. Two mean-field methods for calculating the crowding-dependent microgel radius are investigated, and combined with calculations of the net microgel charge characterizing the electrostatic part of an effective microgel pair potential, with charge renormalization accounted for. Using this effective pair potential, thermodynamic and static suspension properties are calculated including the osmotic pressure and microgel pair distribution function. The latter is used in our calculations of dynamic suspension properties, where we account for hydrodynamic interactions. Results for diffusion and rheological properties are presented over ranges of microgel concentration and charge. We show that deswelling mildly enhances self- and collective diffusion and the osmotic pressure, lowers the suspension viscosity, and significantly shifts the suspension crystallization point to higher concentrations. The paper presents a bottom-up approach to efficiently computing suspension properties of crowded ionic microgels using single-particle characteristics.
description: 23 pages, 17 figures
Additional file 4 of An efficient gene disruption method for the woody plant pathogen Botryosphaeria dothidea
Creators: name: Dong, Bao-Zhu
name: Guo, Li-Yun
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Biotechnology
subject: Cancer
subject: Plant Biology

description: Additional file 4: Fig. S4. Verification of Bdo_02540 GD B. dothidea HTLW03 transformants. The Bdo_02540 GD transformant (ΔBdo_02540–1) was analyzed with four PCR amplifications and a Southern blot. aΔBdo_02540–1 had the correct upstream and downstream fragments, lacked the ORF fragment, and had a longer whole-length fragment than the WT control. b Southern blot analysis of the hph insertion loci.
Farm size and farmers environmental-friendly practices in livestock farming
Creators: name: CORSI, ALESSANDRO
name: NOVELLI, SILVIA
name: BIAGINI, DAVIDE
name: CORSI, ALESSANDRO
name: NOVELLI, SILVIA
name: BIAGINI, DAVIDE
Publisher: name: Unknown
Year: 2018
Subjects: Agricultural and Food Policy
Environmental Economics and Policy

description: Agriculture is among the major contributors to climate change, accounting for 24 percent of global CO2 emissions. Within the agricultural sector, livestock has a major role in greenhouse gas emissions. However, animal husbandry also affects the environment through nitrogen leaching to water tables from manure and slurry spread or stored on the soil. Both impacts can be diminished by appropriate practices, concerning the effluents storage and the modalities of their spreading on the soil. We investigate to what extent farmers adopt such practices and, more importantly, which are farm and farmers’ characteristics more conducive to the adoption of such practices. In particular, given the predominance of small farms in Italian agriculture, we assess the effect of farm size on the adoption of appropriate practices. To this purpose, we estimate ordered and binomial probit models of the adoption of virtuous practices from data of the 2010 Agricultural Census in Piedmont (Italy). The results suggest that, in general, larger farms are more likely to adopt virtuous practices, but the effect of farm size is nevertheless rather weak. Technical and cost issues linked to the physical conditions (location in hills and mountains) are apparently a relevant impediment to these practices.
Exchange Biasing of the Ferromagnetic Semiconductor Ga1-xMnxAs
Creators: name: Eid, K. F.
name: Stone, M. B.
name: Ku, K. C.
name: Schiffer, P.
name: Samarth, N.
name: Shih, T. C.
name: Palmstrom, C. J.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We demonstrate the exchange coupling of a ferromagnetic semiconductor (Ga1-xMnxAs) with an overgrown antiferromagnet (MnO). Unlike most conventional exchange biased systems, the blocking temperature of the antiferromagnet (T_B = 48 +- 2 K) and the Curie temperature of the ferromagnet (T_C = 55.1 +- 0.2 K) are comparable. The resulting exchange bias manifests itself as a clear shift in the magnetization hysteresis loop when the bilayer is cooled in the presence of an applied magnetic field and an enhancement of the coercive field.
description: pdf file only; submitted to Applied Physics Letters
What is Malegra and how does it work?
Creators: name: 4UK, Kamagra
Publisher: name: Zenodo
Year: 2025

description: Malegra medicine is used to manage sexual defects which we also call erectile dysfunction. This medicine works very fast and within 30-50 minutes of taking it, you will have the option to get unique and powerful strength. This medicine is used by many people all over the world. It starts in the brain and ends with the most violent penis. When your brain gets the signal that men are experiencing sexual excitement, it reacts to the characters that supply more blood to the rejuvenating penis. In turn, it gains hardness and remains in this state for a long time. Disappointment from erection occurs in the context of many factors that affect the general hematopoietic scale. It stops with the removal of organs that are unable to function. You can buy Malegra 100 Mg online which contains Sildenafil Citrate, which falls under the category of PDE5 blockers.
Oscillations of the error term in the prime number theorem
Creators: name: Schlage-Puchta, Jan-Christoph
Publisher: name: arXiv
Year: 2019
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11N05

description: Let $σ+iγ$ be a zero of the Riemann zeta function to the right of the line $\frac{1}{2}+it$. We show that this zero causes large oscillations of the error term of the prime number theorem. Our result is close to optimal both in terms of the magnitude and in the localization of large values for the error term.
Familial hypercholesterolemia and lipoprotein(a) hyperlipidemia as independent and combined cardiovascular risk factors
Creators: name: Orsó, Evelyn
name: Ahrens, Norbert
name: Dzenan, Kilalic
name: Schmitz, Gerd
Publisher: name: Universität Regensburg
Year: 2009
Subjects: subject: Familial hypercholesterolemia, Lipoprotein(a) hyperlipidemia, Cardiovascular risk, Lipoprotein apheresis, Biomarker
subject: 610 Medizin

description: The phenotypic diversity of familial hypercholesterolemia (FH) and lipoprotein(a) hyperlipidemia (Lp(a)-HLP), as defined risks for coronary artery disease with genetic background, and their frequent co-incidence with additional cardiovascular risk factors require a critical revisiting of the current diagnostic and screening criteria as well as therapeutic recommendations established for FH or isolated Lp(a)-HLP, since there is no clear guidance for patient stratification and disease management for combined cases. Further evaluation of the recent biomarkers and establishment of novel biomarkers are necessary for extended risk assessment of cardiovascular disease in FH or Lp(a)-HLP and to better understand the pathophysiology of these syndrome complexes. Lipoprotein apheresis is used as long-term treatment to reduce circulating lipoproteins in patients with severe FH and/or Lp(a)-HLP, particularly with multiple cardiovascular risks who are intolerant or insufficiently responsive to lipid-lowering drugs. Recent sophisticated analyses of molecular lipid species (lipidome) extended with transcriptomic and/or proteomic approaches may provide further lipid biomarkers for disease management of FH and/or Lp(a)-HLP, and relevant data for optimization of apheresis treatment. This review summarizes current studies investigating FH and Lp(a)-HLP as independent and combined cardiovascular risk factors, and some promising biomarker candidates for these entities.
Assessing the full distribution of greenhouse gas emissions from crop, livestock and commercial forestry plantations in Brazil's Southern Amazon
Creators: name: Carauta, M.
name: Guzman-Bustamante, I.
name: Meurer, K.
name: Hampf, A.
name: Troost, C.
name: Rodrigues, R.
name: Berger, T.
name: Carauta, M.
name: Guzman-Bustamante, I.
name: Meurer, K.
name: Hampf, A.
name: Troost, C.
name: Rodrigues, R.
name: Berger, T.
Publisher: name: Unknown
Year: 2018
Subjects: Crop Production/Industries

description: This study focuses on evaluating the full distribution of greenhouse gas (GHG) emissions related to agricultural land-use change in Mato Grosso, Brazil, both from a farmer and policy perspective. By combining three simulation models as well as data from field experiments, we present a novel Integrated Assessment approach that evaluates a large set of production systems, management practices, technologies, climatic conditions, and soil types with very high spatial resolution. The main component of our application is a multi-agent mathematical programming simulator that links socio-economic and biophysical constraints at farm-level and, hence, simulates farmer decision-making and policy response. We estimate the GHG emissions related to the full range of farm production systems and sources, such as inputs, machinery production, diesel consumption, soil processes, land use change (soil organic carbon and carbon stock from vegetation) and enteric fermentation. The results of our simulations indicate that GHG emissions in Mato Grosso are very sensitive to alternative land use change scenarios. The largest source of GHG emissions from crop and eucalyptus production is the use of farming inputs, while for cattle production it is the emission from enteric fermentation. Final simulation results regarding farmer policy response will be presented at the ICAE conference. Acknowledgement : This research was financed by the CarBioCial project of the German Federal Ministry of Education and Research. We thankfully acknowledge the scholarships awarded by the Brazilian Coordination for the Improvement of Higher Education Personnel (CAPES) [grant number BEX-10421/14-9]. We are grateful to Embrapa Agrossilvipastoril and IMEA for the technical materials and knowledge provided. Special thanks to Eric B necke and Uwe Franko for their support on the parameterization of CANDY simulations. The simulation experiments were performed using the computational resources of bwUniCluster funded by the Ministry of Science, Research and the Arts and the Universities of the State of Baden-W rttemberg, Germany.
Hepatoprotective, cytotoxic, antimicrobial and antioxidant activities of Dioon spinulosum leaves Dyer Ex Eichler and its isolated secondary metabolites
Creators: name: Walaa A. Negm
name: Kamilia A. Abo El-Seoud
name: Kabbash, Amal
name: Kassab, Amira A.
name: El-Aasr, Mona
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
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: FOS: Biological sciences
subject: Science Policy
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences

description: Given the lack of adequate research on Dioon spinulosum (D. spinulosum) Dyer Ex Eichler, this study was conducted focusing on different biological activities and phytochemical investigation of D. spinulosum for the first time. D. spinulosum showed strong protective activity against DNA damage and potent activity against VERO cell line. It also presented antimicrobial and hepatoprotective activity. Phytochemical investigation of the leaves resulted in isolation of two new flavonoids, apigenin 7-O-α-d-glucopyranoside (15) and amentoflavone 7-O-α-l-rhamnopyranoside (16), in addition to fifteen known compounds: phytone (1), trans-phytol (2), β-sitosterol (3), stigmasterol (4), oliveriflavone (5), 7,4′,7″,4″′-tetramethylamentoflavone (6), 7,4',7''-trimethylamentoflavone (7), scaidopitysin (8), bilobetin (9), isoginkgetin (10), aromadendrin (11), sotusflavone (12), engeletin (14) and eriocitrin (17) for the first time together with amentoflavone (13). Compounds (11) and (13) displayed very strong cytotoxic activity and showed the highest protective activity against DNA damage.
XMM-Newton and Chandra observations of three X-ray faint early-type galaxies
Creators: name: O'Sullivan, E.
name: Ponman, T. J.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present XMM-Newton observations of three X-ray under-luminous elliptical galaxies, NGC 3585, NGC 4494 and NGC 5322. All three galaxies have relatively large optical luminosities (log LB=10.35-10.67 solar) but have X-ray luminosities consistent with emission from discrete sources only. In conjunction with a Chandra observation of NGC 3585, we analyse the XMM data and show that the three galaxies are dominated by discrete source emission, but do possess some X-ray emitting gas. The gas is at relatively low temperatures, kT=0.25-0.44 keV. All three galaxies show evidence of recent dynamical disturbance and formation through mergers, including kinematically distinct cores, young stellar ages, and embedded stellar disks. This leads us to conclude that the galaxies formed relatively recently and have yet to build up large X-ray halos. They are likely to be in a developmental phase where the X-ray gas has a very low density, making it undetectable outside the galaxy core. However, if the gas is a product of stellar mass loss, as seems most probable, we would expect to observe supersolar metal abundances. While abundance is not well constrained by the data, we find best fit abundances <0.1 solar for single-temperature models, and it seems unlikely that we could underestimate the metallicity by such a large factor.
description: Accepted for publication in MNRAS, 12 pages, 8 postscript figures
Additional file 5 of Unexpected genomic, biosynthetic and species diversity of Streptomyces bacteria from bats in Arizona and New Mexico, USA
Creators: name: Park, Cooper J.
name: Caimi, Nicole A.
name: Buecher, Debbie C.
name: Valdez, Ernest W.
name: Northup, Diana E.
name: Andam, Cheryl P.
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 5: Fig. S2. Core genome tree generated from 1149 concatenated core genes of Streptomyces identified by Roary.
The Pseudoscalar Meson Mass to Two Loops in Three-Flavor Partially Quenched $χ$PT
Creators: name: Bijnens, Johan
name: Danielsson, Niclas
name: Lahde, Timo A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: This paper presents a first study of the pseudoscalar meson masses to two loops, or NNLO, within the supersymmetric formulation of partially quenched chiral perturbation theory (PQ$χ$PT). The expression for the pseudoscalar meson mass in the case of three valence and three sea quarks with equal masses, but different from each other, is given to ${\cal O}(p^6)$, along with a numerical analysis.
description: 4 pages, one reference added, small changes in discussion