cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Combined effects of pairing fluctuations and a pseudogap in the Cuprate Hall effect
Creators: name: Boyack, Rufus
name: Wang, Xiaoyu
name: Chen, Qijin
name: Levin, K.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The normal-state behavior of the temperature-dependent Hall coefficient in cuprate superconductors is investigated using linear response theory. The Hall conductivity is of paramount importance in that its sign and magnitude directly reflect the sign of the charge carriers and the size of particle-hole asymmetry effects. Here we apply a strong-pairing fluctuation theory that incorporates pseudogap effects known to be important in cuprate transport. As a result, in the vicinity of the transition temperature our theoretical approach goes beyond the conventional superconducting fluctuation formalism. In this regime, pseudogap effects are evident in both the transverse and longitudinal conductivities and the bosonic response is explicitly gauge invariant. The presence of a gap in the excitation spectrum is also apparent at higher temperatures, where the gapped fermionic quasiparticles are the dominant contribution to the Hall coefficient. The observed non-monotonic temperature dependence of the Hall coefficient therefore results from a delicate interplay between the fermionic quasiparticles and the bosonic fluctuations. An important feature of our work is that the sign of the Hall conductivity from the Cooper pair fluctuations is the same as that of their fermionic constituents. Thus, we find no sign change in the Hall coefficient above the transition temperature. This prediction is corroborated by experiments, away from special charge ordering stoichiometries. The theoretical results presented in this paper provide crucial signatures that can be experimentally verified, enabling validation of the present theory.
description: 14 pages, 8 figures
Groundwater use in the Eagle Ford Shale: some policy recommendations
Creators: name: Steadman, Maxwell Philipp
name: Arnett, Benton
name: Healy, Kevin
name: Jiang, Zhongnan
name: LeClere, David
name: McLaughlin, Leslie
name: Roberts, Joey
Publisher: name: Texas Water Journal
Year: 2015

description: Advances in hydraulic fracturing (fracking) and horizontal drilling have allowed oil and gas companies to tap into Texas’ previously inaccessible shale reserves. Fracking in the state has grown at an exponential rate and is not expected to decline until 2025. Fracking requires the consumption of vast amounts of groundwater, a resource that is already strained. This study quantifies the water consumption associated with fracking in the Eagle Ford Shale, evaluates the current regulatory framework, and proposes 3 policy recommendations. The data show that fracking has become the primary consumer of groundwater in the most active counties within the Eagle Ford. Our study proposes 3 policy solutions to ensure that groundwater is consumed in an economically efficient manner in these areas. These solutions are a more thorough system for reporting consumption, tax incentives for oil and gas companies to use substitutes for fresh groundwater, and an alternative property rights system to the current rule of capture system.
description: Texas Water Journal, Vol. 6 No. 1 (2015)
Additional file 1: of Local angiotensin II contributes to tumor resistance to checkpoint immunotherapy
Creators: name: Xie, Guozhu
name: Cheng, Tan
name: Lin, Jie
name: Zhang, Lanfang
name: Zheng, Jieling
name: Liu, Ying
name: Xie, Guobo
name: Wang, Baiyao
name: Yuan, Yawei
Publisher: name: figshare
Year: 2018
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Figure S1. The efficacy of knockdown was detected through qRT-PCR and western blotting. The efficacy of knockdown in 4T1 cells (A) and CT26 cells (B). Figure S2. Role of AGT gene-silencing in growth of 4T1 and CT26 cells. AGT-silencing didn't significantly inhibit tumor growth of 4T1 (A) and CT26 cells (B) in NOD/SCID mice. (C) AGT silencing inhibited CT26 growth in BALB/c mice and the depletion of CD8+ T cells reversed this role. Figure S3. Strategy of combined AGT gene-silencing and PD1 blockade. Figure S4. AngII signaling blockage sensitizes tumors to checkpoint immunotherapy. AGT gene-silencing in 4T1 (A) and CT26 cells (B) rendered tumors more sensitive to anti-PD1 immunotherapy. Figure S5. Percentages of CD3+, CD45+, and CD11b+ cells in 4T1 tumors from BALB/c mice treated with different Ang II-receptor blockers. (A), (B), and (C) correspond to Figure 3A, 3E, and 3F. Figure S6. Representative FACS plot of Teffs (CD8+CD44+) and Tregs (CD4+Foxp3+) in AGT-silenced and control 4T1 tumors from BALB/c mice. Bar chart (right) indicated statistic difference (n = 3). Figure S7. α-SMA, CD8 or CD206 positive cells in hypoxic regions of 4T1 tumors. Positive cells were counted in 4 random 400× microscope visions in hypoxic regions of AGT-silenced or control tumors which were from 3 independent mice, (n = 12). Figure S8. The content of TAMs, Mo-MDSCs and G-MDSCs in shRNA-AGT 4T1 tumors. (A-B) Representative FACS plot. (C) Percentages of these populations (n = 3). Figure S9. AGT-silencing triggers an immune-activating cytokine profile in hypoxic 4T1 cells. The levels of 6 cytokinesby ELISA analysis (A). Gene Ontology analysis showed hypoxia induced significantly higher frequencies of cytokines which were associated with 39 biological processes (B, p < 0.01) and 17 signaling pathways (D, left, p < 0.05). The cytokines influenced by AGT-silencing in hypoxia condition were associated with 58 biological processes (C, p < 0.01) and 22 signaling pathways (D, right, p < 0.05). Table S1. Antibodies for Immunofluorescence. (DOCX 48272 kb)
Revealing the dust grain size in the inner envelope of the Class I protostar Per-emb-50
Creators: name: Agurto-Gangas, C.
name: Pineda, J. E.
name: Szucs, L.
name: Testi, L.
name: Tazzari, M.
name: Miotello, A.
name: Caselli, P.
name: Dunham, M.
name: Stephens, I. W.
name: Bourke, T. L.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: A good constraint of when the growth of dust grains from sub-micrometer to millimeter sizes occurs, is crucial for planet formation models. This provides the first step towards the production of pebbles and planetesimals in protoplanetary disks. Currently, it is well established that Class II objects have large dust grains. However, it is not clear when in the star formation process this grain growth occurs. We use multi-wavelength millimeter observations of a Class I protostar to obtain the spectral index of the observed flux densities $α_\mathrm{mm}$ of the unresolved disk and the surrounding envelope. Our goal is to compare our observational results with visibility modeling at both wavelengths simultaneously. We present data from NOEMA at 2.7 mm and SMA at 1.3 mm of the Class I protostar, Per-emb-50. We model the dust emission with a variety of parametric and radiative transfer models to deduce the grain size from the observed emission spectral index. We find a spectral index in the envelope of Per-emb-50 of $α_{\rm env}$=$3.3\pm0.3$, similar to the typical ISM values. The radiative transfer modeling of the source confirms this value of $α_{\rm env}$ with the presence of dust with a $a_\mathrm{max}$$\leq$100 $μ$m. Additionally, we explore the backwarming effect, where we find that the envelope structure affects the millimeter emission of the disk. Our results reveal grains with a maximum size no larger than $100$ $μ$m in the inner envelope of the Class I protostar Per-emb-50, providing an interesting case to test the universality of millimeter grain growth expected in these sources.
Leaf Photosynthesis Potential in Pineapple (Ananas comosus L. Merr.) 'Smooth Cayenne', a Crassulacean Acid Metabolism Plant
Creators: name: Pannee Chuennakorn
Publisher: name: Department of Agriculture
Year: 2021
Subjects: Light response
Chlorophyll fluorescence
Electron transport rate
Photochemistry
Total acid content

description: Thai Agricultural Research Journal, 39, 1, 44-54
The Holling-Tanner model considering an alternative food for predator.pdf
Creators: name: Arancibia-Ibarra, Claudio
name: Gonzalez-Olivares, Eduardo
Publisher: name: figshare
Year: 2019
Subjects: subject: 10202 Biological Mathematics
subject: FOS: Mathematics
subject: 10299 Applied Mathematics not elsewhere classified

description: This work deals with a modiﬁed Leslie-Gower type predator-prey model where the predators have an alternative food when the quantity of prey diminish and a Holling type II functional response is considered.With both assumptions the model obtained has a significative difference with the known May-Holling-Tanner model, since the new equilibrium point appears, which can be a repeller or a saddle point for different set on the parameter spaceWe can obtain different dynamics according the parameter values and it can possible to prove that the existence of a unique positive equilibrium point which is global asymptotically stable.Also, for other parameter constraints we prove the existence of separatrix curves on the phase plane that divide the behaviour of the trajectories, which can have different ω − limit implying that solutions are highly sensitives to initial conditions.
Spectral and Transport Properties of Quantum Wires with Bond Disorder
Creators: name: Altland, Alexander
name: Merkt, Rainer
Publisher: name: arXiv
Year: 2001
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Systems with bond disorder are defined through lattice Hamiltonians that are of pure nearest neighbour hopping type, i.e. do not contain on-site contributions. Previous analyses based on the Dorokhov-Mello-Pereyra-Kumar (DMPK) transfer matrix technique have shown that both spectral and transport properties of quasi one-dimensional systems belonging to this category are highly unusual. Notably, regimes with absence of exponential Anderson localization are observed, the single particle density of states exhibits singular structure in the vicinity of the band centre, and the manifestation of these phenomena depends in an apparently topological manner on the even- or oddness of the channel number. In this paper we re-consider the problem from the complementary perspective of the non-linear sigma-model. Relying on the standard analogy between one-dimensional statistical field theories and zero-dimensional quantum mechanics, we will relate the problem to the behaviour of a quantum point particle subject to an Aharonov-Bohm flux. We will re-derive previous DMPK results, identify a new class of even/odd staggering phenomena and trace back the anomalous behaviour of the bond disordered system to a simple physical mechanism, viz. the flux periodicity of the quantum Aharonov-Bohm system. We will also touch upon connections to the low energy physics of other lattice systems, notably disordered chiral systems in 0 and 2 dimensions and antiferromagnetic spin chains.
description: 55 pages, 2 figures included
Additional file 3 of Effects of parathyroid hormone and vitamin D supplementation on stroke among patients receiving peritoneal dialysis
Creators: name: You, Xiaohan
name: Zhou, Ying
name: Zhang, Jianna
name: Zhou, Qiongxiu
name: Shi, Yanling
name: Su, Zhen
name: Chen, Chaoshen
name: Shao, Rongrong
name: Zhang, Ji
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Developmental Biology
subject: Mental Health
subject: Computational Biology

description: Additional file 3.
The precision of slow-roll predictions for the CMBR anisotropies
Creators: name: Martin, Jerome
name: Schwarz, Dominik
Publisher: name: arXiv
Year: 1999
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Inflationary predictions for the anisotropy of the cosmic microwave background radiation (CMBR) are often based on the slow-roll approximation. We study the precision with which the multipole moments of the temperature two-point correlation function can be predicted by means of the slow-roll approximation. We ask whether this precision is good enough for the forthcoming high precision observations by means of the MAP and Planck satellites. The error in the multipole moments due to the slow-roll approximation is demonstrated to be bigger than the error in the power spectrum. For power-law inflation with $n_S=0.9$ the error from the leading order slow-roll approximation is $\approx 5%$ for the amplitudes and $\approx 20%$ for the quadrupoles. For the next-to-leading order the errors are within a few percent. The errors increase with $|n_S - 1|$. To obtain a precision of 1% it is necessary, but in general not sufficient, to use the next-to-leading order. In the case of power-law inflation this precision is obtained for the spectral indices if $|n_S - 1| < 0.02$ and for the quadrupoles if $|n_S - 1| < 0.15$ only. The errors in the higher multipoles are even larger than those for the quadrupole, e.g. $\approx 15%$ for l=100, with $n_S = 0.9$ at the next-to-leading order. We find that the accuracy of the slow-roll approximation may be improved by shifting the pivot scale of the primordial spectrum (the scale at which the slow-roll parameters are fixed) into the regime of acoustic oscillations. Nevertheless, the slow-roll approximation cannot be improved beyond the next-to-leading order in the slow-roll parameters.
description: 3 important additions: 1. discussion of higher multipoles, 2. comparison of error from the slow-roll approximation with the error from the cosmic variance, 3. suggestion for improvement of slow-roll approximation; two figures and a table added; 15 pages, 14 figures, RevTeX; accepted for publication in Phys. Rev. D
Optical Angular Momentum Manipulations in a Four Wave Mixing Process
Creators: name: Prajapati, Nikunj
name: Super, Nathan
name: Lanning, Nicholas R.
name: Dowling, Jonathan P.
name: Novikova, Irina
Publisher: name: arXiv
Year: 2018
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We investigate the spatial and quantum intensity correlations between the probe and Stokes optical fields produced via four-wave mixing in a double-Λ configuration, when both incoming probe and control fields carry non-zero optical orbital angular momentum (OAM). We observed that the topological charge of the generated Stokes field obeyed the OAM conservation law. However, the maximum values and optimal conditions for the intensity squeezing between the probe and Stokes fields were largely independent of the angular momenta of the beams, even when these two fields had significantly different OAM charges. We also investigated the case of a composite-vortex pump field, containing two closely-positioned optical vortices, and showed that the generated Stokes field carried the OAM corresponding to the total topological charge of the pump field, further expanding the range of possible OAM manipulation techniques.
description: 8 pages, 6 figures, paper being published in optical letters
Theory of Tunneling Anomaly in Superconductor above Paramagnetic Limit
Creators: name: Kee, Hae-Young
name: Aleiner, I. L.
name: Altshuler, B. L.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We study the tunneling density of states (DoS) in the superconducting systems driven by Zeeman splitting $E_Z$ into the paramagnetic phase. We show that, even though the BCS gap disappears, superconducting fluctuations cause a strong DoS singularity in the vicinity of energies $-E^*$ for electrons polarized along the magnetic field and $E^*$ for the opposite polarization. The position of this singularity $E^*=\case{1}{2}(E_Z + \sqrt{E_Z^2- Δ^2})$ (where $Δ$ is BCS gap at $E_Z=0$) is universal. We found analytically the shape of the DoS for different dimensionality of the system. For ultra-small grains the singularity has the shape of the hard gap, while in higher dimensions it appears as a significant though finite dip. The spin-orbit scattering, and the orbital magnetic field suppress the singularity. Our results are qualitatively consistent with recent experiments in superconducting films.
description: 29 pages, 17 figures included
MPEC 2024-B90 : 2024 BG2
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 BG2

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Dynamics of superconducting strings with chiral currents
Creators: name: Blanco-Pillado, J. J.
name: Olum, Ken D.
name: Vilenkin, Alexander
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We rederive, using an elementary formalism, the general solution to the equations of motion for a superconducting string with a chiral (null) neutral current, earlier obtained by Carter and Peter. We apply this solution to show that the motion of such string loops is strictly periodic and analyze cusp-like behavior and vorton solutions of arbitrary shape. We argue that this solution can be used to approximately describe the dynamics of superconducting strings with small non-chiral currents. We use this description to estimate the electromagnetic radiation power from such strings.
description: 7 pages, RevTex. Final version, to appear in Phys. Rev. D. Emphasizes that the general chiral string solution was previously given by Carter and Peter and that we only give a simple rederivation. Includes application to radiation from non-chiral strings with small currents
Topological Phase Transition in Superconductors with Mirror Symmetry
Creators: name: Lowe, Adam
name: Ortuno, Miguel
name: Yurkevich, Igor V
Publisher: name: arXiv
Year: 2019
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We provide analytical and numerical evidence that the attractive two-dimensional Kitaev model on a lattice with mirror symmetry demonstrates unusual 'intrinsic' phase at half filling. This phase emerges in the phase diagram at the boundary separating two topological superconductors with opposite Chern numbers and exists due to condensation of non-zero momentum Cooper pairs. Unlike Fulde-Ferrell-Larkin-Ovchinnikov superconductivity, the Cooper pairs momenta are lying along two lines in the Brillouin zone meaning simultaneous condensation of a continuum of Cooper pairs.
description: 6 pages, 5 figures
On spectroscopic structure of two interacting electrons in a quantum dot
Creators: name: Mustafa, Omar
Publisher: name: arXiv
Year: 2001
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The shifted 1/N expansion technique, used by El-Said (Phys. Rev. B 61, 13026 (2000)), to study the relative Hamiltonian of two interacting electrons confined in a quantum dot, is investigated. El-Said's results from SLNT are revised and results from an alternative method are also reported. The distinctive role of the central spike term, $(m^2-1/4)/q^2$, in determinig the spectral properties of the above problem is shown, moreover.
description: 14 pages, Latex file, 1 ps figures, to appear in the Czech J Phys
Justification of Peregrine soliton from full water waves
Creators: name: Su, Qingtang
Publisher: name: arXiv
Year: 2019
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: The Peregrine soliton $Q(x,t)=e^{it}(1-\frac{4(1+2it)}{1+4x^2+4t^2})$ is an exact solution of the 1d focusing nonlinear schrödinger equation (NLS) $iB_t+B_{xx}=-2|B|^2B$, having the feature that it decays to $e^{it}$ at the spatial and time infinities, and with a peak and troughs in a local region. It is considered as a prototype of the rogue waves by the ocean waves community. The 1D NLS is related to the full water wave system in the sense that asymptotically it is the envelope equation for the full water waves. In this paper, working in the framework of water waves which decay non-tangentially, we give a rigorous justification of the NLS from the full water waves equation in a regime that allows for the Peregrine soliton. As a byproduct, we prove long time existence of solutions for the full water waves equation with small initial data in space of the form $H^s(\mathbb{R})+H^{s'}(\mathbb{T})$, where $s\geq 4, s'>s+\frac{3}{2}$.
description: We fix several typos and add some remarks
Unravelling the large deviation statistics of Markovian open quantum systems
Creators: name: Carollo, Federico
name: Jack, Robert L.
name: Garrahan, Juan P.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We analyse dynamical large deviations of quantum trajectories in Markovian open quantum systems in their full generality. We derive a {\em quantum level-2.5 large deviation principle} for these systems, which describes the joint fluctuations of time-averaged quantum jump rates and of the time-averaged quantum state for long times. Like its level-2.5 counterpart for classical continuous-time Markov chains (which it contains as a special case) this description is both {\em explicit and complete}, as the statistics of arbitrary time-extensive dynamical observables can be obtained by contraction from the explicit level-2.5 rate functional we derive. Our approach uses an unravelled representation of the quantum dynamics which allows these statistics to be obtained by analysing a classical stochastic process in the space of pure states. For quantum reset processes we show that the unravelled dynamics is semi-Markov, and derive bounds on the asymptotic variance of the number of quantum jumps which generalise classical thermodynamic uncertainty relations. We finish by discussing how our level-2.5 approach can be used to study large deviations of non-linear functions of the state such as measures of entanglement.
description: 5+12 pages, 1 figure
Arctioblepsis rubida C. Felder & R. Felder 1862
Creators: name: Singh, Navneet
name: Ranjan, Rahul
name: Talukdar, Avishek
name: Joshi, Rahul
name: Kirti, Jagbir Singh
name: Chandra, Kailash
name: Mally, Richard
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Pyralidae
Arctioblepsis
Arctioblepsis rubida

description: 352. Arctioblepsis rubida C. Felder & R. Felder, 1862: 33
Type locality: Tse-kiang [China, Zhejiang], Níngbô Shì [Ning-po]
 Distribution. Indian records: Sikkim, Khasis (Hampson 1896b), Meghalaya, Arunachal Pradesh (Singh & Ranjan 2015), Assam, Manipur (Sondhi et al. 2021). Global records: China (Hampson 1896b), Nepal (Yamanaka 1995), Borneo (Sutton et al. 2015).
  Genus Arippara Walker, [1863c] 1864: 74
 Type species: Arippara indicator Walker, [1863c] 1864, by monotypy
 = Paleca Butler, 1879c: 354
 Type species: Paleca rufescens Butler, 1879c, by original designation
 = Paredra Snellen, 1880b: 60
 Type species: Paredra eogenalis Snellen, 1880b, by monotypy
description: Published as part of Singh, Navneet, Ranjan, Rahul, Talukdar, Avishek, Joshi, Rahul, Kirti, Jagbir Singh, Chandra, Kailash & Mally, Richard, 2022, A catalogue of Indian Pyraloidea (Lepidoptera), pp. 1-423 in Zootaxa 5197 (1) on page 116, DOI: 10.11646/zootaxa.5197.1.1, http://zenodo.org/record/7252292
Bostra ferrifusalis Hampson 1899
Creators: name: Singh, Navneet
name: Ranjan, Rahul
name: Talukdar, Avishek
name: Joshi, Rahul
name: Kirti, Jagbir Singh
name: Chandra, Kailash
name: Mally, Richard
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Pyralidae
Bostra
Bostra ferrifusalis

description: 357. Bostra ferrifusalis Hampson, 1899e: 699
Type locality: Khasi [Khasis]
Distribution. Indian records: Khasis (Hampson 1899e). Global records: unknown.
description: Published as part of Singh, Navneet, Ranjan, Rahul, Talukdar, Avishek, Joshi, Rahul, Kirti, Jagbir Singh, Chandra, Kailash & Mally, Richard, 2022, A catalogue of Indian Pyraloidea (Lepidoptera), pp. 1-423 in Zootaxa 5197 (1) on page 117, DOI: 10.11646/zootaxa.5197.1.1, http://zenodo.org/record/7252292
Mixed phases in U(N) superconductivity
Creators: name: Moore, M. A.
name: Newman, T. J.
name: Bray, A. J.
name: Chin, S-K.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We consider a general class of type-II superconductors which are described by N complex order parameters (OP), with an overall U(N) symmetry for the energy functional. In the lowest energy state, each OP adopts its own particular lattice structure, making the spatial variation of the overall condensate very complex. We present detailed results for the case N=2. We also treat the limit N -> infinity, which allows us to resolve a recent controversy, by showing that all previous studies are fundamentally flawed.
description: 9 double column pages, Revtex, 7 figures uuencoded
Fluctuation-dissipation theorem and quantum tunneling with dissipation
Creators: name: Fujikawa, Kazuo
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We suggest to take the fluctuation-dissipation theorem of Callen and Welton as a basis to study quantum dissipative phenomena (such as macroscopic quantum tunneling) in a manner analogous to the Nambu-Goldstone theorem for spontaneous symmetry breakdown. It is shown that the essential physical contents of the Caldeira-Leggett model such as the suppression of quantum coherence by Ohmic dissipation are derived from general principles only, namely, the fluctuation-dissipation theorem and unitarity and causality (i.e., dispersion relations), without referring to an explicit form of the Lagrangian. An interesting connection between quantum tunneling with Ohmic dissipation and the Anderson's orthogonality theorem is also noted.
description: To appear in Phys. Rev. E
Sum Rules of Neutrino Masses and CP Violation in the Four-Neutrino Mixing Scheme
Creators: name: Xing, Zhi-zhong
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We show that the commutator of lepton mass matrices is invariant under terrestial matter effects in the four-neutrino mixing scheme. A set of model-independent sum rules for neutrino masses, which may be generalized to hold for an arbitrary number of neutrino families, are for the first time uncovered. Useful sum rules for the rephasing-invariant measures of leptonic CP violation have also been found. Finally we present a generic formula of T-violating asymmetries and expect it to be applicable to the future long-baseline neutrino oscillation experiments.
description: RevTex 8 pages. 3 references added. Phys. Rev. D (in printing)
A VLT/FLAMES survey for massive binaries in Westerlund 1: VI. Properties of X-ray bright massive cluster members
Creators: name: Clark, J. S.
name: Ritchie, B. W.
name: Negueruela, I.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Despite the first detection of X-rays from massive stars occurring four decades ago, the physical dependence of the emission mechanism(s) on the underlying stellar and binary properties of the emitters remains uncertain. The young massive cluster Westerlund 1 provides an ideal testbed for understanding this phenomenon, with over 50 cluster members detected in historical X-ray observations. In the decade since these data were obtained, significant new multi-epoch observations of the cluster have been made, allowing a fundamental reappraisal of the nature of both X-ray bright and dark stars. A total of 45 X-ray sources within Wd1 now have precise spectral classifications. These observations identify 16 candidate and confirmed massive binaries; by comparison 22 stars have X-ray properties that imply a contribution from a wind collision zone. X-ray emission appears confined to O9-B0.5 supergiants, Wolf-Rayets and a small group of highly luminous interacting/post-interaction binaries. Despite their presence in large numbers, no emission is seen from earlier, less evolved O stars or later, cooler B super-/hypergiants. We suppose that the lack of X-ray emission from O giants is due to their comparatively low bolometric luminosities if, as expected, they follow the canonical L_X/L_bol relation for hot stars. The transition away from X-ray emission for OB supergiants occurs at the location of the bistability jump; we speculate that below this limit, stellar wind velocities are insufficient for internal, X-ray emitting shocks to form. Our results are consistent with recent findings that massive binaries are not uniformly brighter than single stars of comparable luminosity and spectral type, although it is noteworthy that the brightest and hardest stellar X-ray sources within Wd1 are all either confirmed or candidate massive, interacting/post-interaction binaries (Abridged).
description: 10 pages, 2 figures, accepted for publication in Astronomy and Astrophysics
A new steroidal alkaloid from Fritillaria michailovskyi Fomin
Creators: name: Wang, Yan
name: Aamer, Muhammad
name: Aslay, Meral
name: Sener, Bilge
name: Khan, Farooq-Ahmad
name: Wahab, Atia-tul
name: Rahman, Atta-ur
name: Choudhary, Muhammad Iqbal
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Molecular Biology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Cancer

description: A new steroidal alkaloid, michainine (1), was isolated from Fritillaria michailovskyi Fomin, along with nine known compounds 2–10 of different classes, including ribonucleoside, steroids, and fatty acids, which were isolated for the first time from this plant. Their structures were elucidated through extensive spectroscopic techniques, as well as by comparing the data in the literature. Furthermore, the dichloromethane fraction of F. michailovskyi showed a positive butyrylcholinesterase inhibitory activity, along with non-cytotoxicity against 3T3 cell line.
Plecoptera megarthra Hampson 1910
Creators: name: Mbata, Keith J.
name: Prins, Jurate De
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Erebidae
Plecoptera
Plecoptera megarthra

description: Plecoptera megarthra Hampson, 1910c
COMMON NAME(S): Woodworm or Wood borer.
SYNONYM(S): None.
IUCN STATUS: Not Evaluated (NE).
DISTRIBUTION: Tanzania, Zambia.
LOCALITY IN ZAMBIA: Type Locality is Niamadzi River in Loangwa [now Luangwa] Valley (Altitude 2000 ft., or 609.6 m] in NE Rhodesia [now N. E. Zambia], Eastern Province.
LARVAL HOSTPLANT(S): Unknown.
SOURCES: African Moths 2019; De Prins & De Prins 2022; Hampson 1910c.
description: Published as part of Mbata, Keith J. & Prins, Jurate De, 2023, Annotated checklist of moths of Zambia (Insecta: Lepidoptera), pp. 1-503 in Zootaxa 5354 (1) on page 278, DOI: 10.11646/zootaxa.5354.1.1, http://zenodo.org/record/10130434
title: Διεξαγωγή έρευνας σχετικά με τη διαχείριση επιχειρησιακών κινδύνων (Enterprise Risk Management) στις Ελληνικές Εισηγμένες Επιχειρήσεις
titleType: AlternativeTitle
Creators: name: Deligiannakis, Stylianos D.
Publisher: name: National Technological University of Athens
Year: 2013
Subjects: Διαχείριση επιχειρησιακών κινδύνων
Ελληνικές εισηγμένες επιχειρήσεις
Επιχειρησιακοί κίνδυνοι
Enterprise risk management
Greek listed companies
ERM
Survey
Maturity model
Maturity levels

description: 150 σ.
description: Στα πλαίσια της παρούσας Διπλωματικής Εργασίας έγινε μια λεπτομερής καταγραφή της υφιστάμενης κατάστασης της Διαχείρισης Επιχειρησιακών Κινδύνων (ERM) στις ελληνικές εισηγμένες επιχειρήσεις. Η έρευνα πραγματοποιήθηκε με τη χρήση δομημένου, μη παραλλαγμένου ηλεκτρονικού ερωτηματολογίου και μέσω των αποτελεσμάτων που εξήχθησαν, οι επιχειρήσεις που συμμετείχαν κατετάγησαν σε Επίπεδα Ωριμότητας στη Διαχείριση Επιχειρησιακών Κινδύνων. Η κατάταξη αυτή επιβεβαιώθηκε με τη χρήση της Διβηματικής Ανάλυσης κατά Συστάδες (Two Step Cluster Analysis). Τέλος, ανεδείχθησαν οι ελλείψεις των επιχειρήσεων σε θέματα οργάνωσης, διαδικασιών, πληροφοριακών συστημάτων και στρατηγικής σε ότι αφορά στο ERM, με ταυτόχρονη παρουσίαση προτάσεων για την βελτίωση των επιδόσεών τους.
description: This thesis records the current state of Enterprise Risk Management (ERM) in Greek listed companies in detail. The survey was conducted using a structured, non-disguised on-line questionnaire and through the results obtained, the firms involved were classified into maturity levels in Enterprise Risk Management. (ERM Maturity Levels). This classification was confirmed using Two Step Cluster Analysis. Finally, shortages of the firms' organization, processes, IT systems and strategy regarding ERM were highlighted, while ways of improving of their performance were proposed.
Morphological analysis of Heliconia spp: A promising cut flower in Bangladesh
Creators: name: Islam, M.S.
name: Mehraj, H
name: Roni, M.Z.K.
name: ONA, A.F.
name: Uddin, A.F.M. Jamal
Publisher: name: figshare
Year: 2021
Subjects: subject: 70601 Horticultural Crop Growth and Development
subject: FOS: Agriculture, forestry and fisheries

description: A pot experiment was conducted at the Horticulture Farm, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh during October, 2010 to December, 2011 to distinguish the performances of different Heliconia cultivars and explore as promising cut flower with its five cultivars namely Pink blush, Scarlet torch, Golden torch, Red devil and Lob-star-claw in the Randomized Complete Block Design (RCBD) with three replications. Significant differences among cultivars were found for all of the attributes evaluated. All five cultivars performed acceptably well as cut flower and could be explore and popularize as commercial cut flower in Bangladesh after further verification responding various factor as well as cultural practices.
Feynman Diagrams of Generalized Matrix Models and the Associated Manifolds in Dimension 4
Creators: name: De Pietri, Roberto
name: Petronio, Carlo
Publisher: name: arXiv
Year: 2000
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The problem of constructing a quantum theory of gravity has been tackled with very different strategies, most of which relying on the interplay between ideas from physics and from advanced mathematics. On the mathematical side, a central role is played by combinatorial topology, often used to recover the space-time manifold from the other structures involved. An extremely attractive possibility is that of encoding all possible space-times as specific Feynman diagrams of a suitable field theory. In this work we analyze how exactly one can associate combinatorial 4-manifolds to the Feynman diagrams of certain tensor theories.
description: 25 pages, 10 figures. Minor canges
Additional file of Deep sequencing reveals the complex and coordinated transcriptional regulation of genes related to grain quality in rice cultivars
Creators: name: R C Venu
name: M V Sreerekha
name: Nobuta, Kan
name: Beló, André
name: Yuese Ning
name: Gynheung An
name: Meyers, Blake C
name: Wang, Guo-Liang
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file of Deep sequencing reveals the complex and coordinated transcriptional regulation of genes related to grain quality in rice cultivars
Second-Order Leptonic Radiative Corrections for Lepton-Proton Scattering
Creators: name: Bucoveanu, R. -D.
name: Spiesberger, H.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The interpretation of high-precision lepton-nucleon scattering experiments requires the knowledge of higher-order radiative corrections. We present a calculation of the cross section for unpolarized lepton-proton scattering including leptonic radiative corrections up to second order, including one- and two-loop corrections, radiation of one and two photons and one-loop corrections for one-photon radiation. Numerical results are given for the planned P2 experiment at the MESA facility in Mainz, and some results are also discussed for Qweak and the suggested MUSE experiment.
description: 28 pages
Saluria nilgiriensis Hampson 1918
Creators: name: Singh, Navneet
name: Ranjan, Rahul
name: Talukdar, Avishek
name: Joshi, Rahul
name: Kirti, Jagbir Singh
name: Chandra, Kailash
name: Mally, Richard
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Pyralidae
Saluria
Saluria nilgiriensis

description: 327. Saluria nilgiriensis Hampson, 1918b: 95
Type locality: India, Tamil Nadu, Madras, Nilgiris, Pykara
Distribution. Indian records: Madras [province], Nilgiris, Pykara (Hampson 1918b). Global records: unknown.
description: Published as part of Singh, Navneet, Ranjan, Rahul, Talukdar, Avishek, Joshi, Rahul, Kirti, Jagbir Singh, Chandra, Kailash & Mally, Richard, 2022, A catalogue of Indian Pyraloidea (Lepidoptera), pp. 1-423 in Zootaxa 5197 (1) on page 110, DOI: 10.11646/zootaxa.5197.1.1, http://zenodo.org/record/7252292
Estimation of Reynolds number for flows around cylinders with lattice Boltzmann methods and artificial neural networks
Creators: name: Carrillo, Mauricio
name: Que, Ulices
name: González, José A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Applied Physics (physics.app-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The present work investigates the application of Artificial Neural Networks (ANNs) to estimate the Reynolds ($Re$) number for flows around a cylinder. The data required to train the ANN was generated with our own implementation of a Lattice Boltzmann Method (LBM) code performing simulations of a 2-dimensional flow around a cylinder. As results of the simulations, we obtain the velocity field ($\vec{v}$) and the vorticity ($\vec{\nabla}\times\vec{v}$) of the fluid for 120 different values of $Re$ measured at different distances from the obstacle and use them to teach the ANN to predict the $Re$. The results predicted by the networks show good accuracy with errors of less than $4\%$ in all the studied cases. One of the possible applications of this method is the development of an efficient tool to characterize a blocked flowing pipe.
description: 8 pages, 16 figures
MORPHOLOGICAL ANALYSIS OF Heliconia spp: A PROMISING CUT FLOWER IN BANGLADESH
Creators: name: Islam, M.S.
name: Mehraj, H
name: Roni, M.Z.K.
name: ONA, A.F.
name: Uddin, A.F.M. Jamal
Publisher: name: figshare
Year: 2020
Subjects: subject: 70601 Horticultural Crop Growth and Development
subject: FOS: Agriculture, forestry and fisheries

description: A pot experiment was conducted at the Horticulture Farm, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh during October, 2010 to December, 2011 to distinguish the performances of different Heliconia cultivars and explore as promising cut flower with its five cultivars namely Pink blush, Scarlet torch, Golden torch, Red devil and Lob-star-claw in the Randomized Complete Block Design (RCBD) with three replications. Significant differences among cultivars were found for all of the attributes evaluated. All five cultivars performed acceptably well as cut flower and could be explore and popularize as commercial cut flower in Bangladesh after further verification responding various factor as well as cultural practices.
Spin-Orbit-Induced Magnetic Anisotropy for Impurities in Metallic Samples I. Surface Anisotropy
Creators: name: Ujsaghy, O.
name: Zawadowski, A.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Motivated by the recent measurements of Kondo resistivity in thin films and wires, where the Kondo amplitude is suppressed for thinner samples, the surface anisotropy for magnetic impurities is studied. That anisotropy is developed in those cases where in addition to the exchange interaction with the impurity there is strong spin-orbit interaction for conduction electrons around the impurity in the ballistic region. The asymmetry in the neighborhood of the magnetic impurity exhibits the anisotropy axis $n$ which, in the case of a plane surface, is perpendicular to the surface. The anisotropy energy is $ΔE=K_d (nS)^2$ for spin $S$, and the anisotropy constant $K_d$ is inversionally proportional to distance $d$ measured from the surface and $K_d>0$. Thus at low temperature the spin is frozen in a singlet or doublet of lowest energy. The influence of that anisotropy on the electrical resistivity is the subject of the following paper (part II).
description: 28 pages, RevTeX (using epsfig), 8 eps figures included, submitted to PRB
DECIMER-Segmentation model
Creators: name: Kohulan Rajan
name: Henning Otto Brinkhaus
name: Achim Zielesny
name: Christoph Steinbeck
Publisher: name: Zenodo
Year: 2021
Subjects: DECIMER
DECIMER-Segmentation
OCSR

description: The latest model for detecting chemical structures and segmenting them using Mark-RCNN
Twist-4 Gluon Recombination Corrections for Deep Inelastic Structure Functions
Creators: name: Blümlein, J.
name: Ravindran, V.
name: Ruan, J.
name: Zhu, W.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We calculate twist--4 coefficient functions for the deep inelastic structure function $F_2(x,Q^2)$ associated to 4--gluon operator matrix elements for general values of the Bjorken variable $x$ and study the numerical effect on the slope $\partial F_2(x,Q^2)/\partial \log Q^2$. It is shown that these contributions diminish the strongly rising twist--2 terms towards small values of $x$.
description: 10 pages LATEX, 2 style file, 3 eps-files
Who regulates it? Water policy and hydraulic fracturing in Texas
Creators: name: Cook, Margaret
name: Huber, Karen L.
name: Webber, Michael E.
Publisher: name: Texas Water Journal
Year: 2015

description: Hydraulic fracturing, the injection of a pressurized fluid mixture of mostly water, sand and a small amount of chemicals (frac fluids), increases extraction rates and recovery of oil or gas. The technique has become increasingly popular when used in combination with horizontal drilling, especially in Texas shale formations. Hydraulic fracturing often requires thousands of cubic meters of water per well. Access to water might be challenging due to water scarcity, allocation policies, price, location, and competition for water. In this policy analysis, we conducted a detailed bottom-up survey for each groundwater conservation district to catalog and assess the prevailing policies and practices related to water and hydraulic fracturing, focusing on the ways in which the State of Texas regulates the use of fresh and non-freshwater for hydraulic fracturing. We find that policies are inconsistent statewide with great variability from district to district in regulations and potential solutions to the challenge of freshwater use. From this analysis, we provide information on the practice of hydraulic fracturing and examine strategies for reducing freshwater use through recycling and use of non-freshwater. In this report, we present the current water policy framework and alternative solutions.
description: Texas Water Journal, Vol. 6 No. 1 (2015)
Additional file 1 of Sex hormone-binding globulin and arthritis: a Mendelian randomization study
Creators: name: Qu, Zihao
name: Huang, Jiawei
name: Yang, Fangkun
name: Hong, Jianqiao
name: Wang, Wei
name: Yan, Shigui
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Medicine
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences

description: Additional file 1: Table S1. Calculation of linkage disequilibrium of selected SNPs. Table S2. The characteristics of GWAS studies on the included outcomes. Table S3. The association information of SHBG SNPs with OA in all participants and single sex. Table S4. The association information of SHBG SNPs with RA in all participants and single sex. TableS5. The association information of SHBG SNPs with AS in all participants and single sex. Table S6. The association information of SHBG SNPs with OA in two skeletal sites. Table S7. Related traits of SHBG SNPs. Table S8. Weighted median and MR-Egger analysis for genetic associations between serum SHBG concentration and all the outcomes. Table S9. MR-PRESSO analysis for genetic associations between serum SHBG concentration and all the outcomes
Variational dynamics in open spacetimes
Creators: name: Boersma, Jelle P.
Publisher: name: arXiv
Year: 2000
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the effect of non-vanishing surface terms at spatial infinity on the dynamics of a scalar field in an open FLRW spacetime. Starting from the path-integral formulation of quantum field theory we argue that classical physics is described by field configurations which extremize the action functional in the space of field configurations for which the variation of the action is well defined. Since these field configurations are not required to vanish outside a bounded domain, there is generally a non-vanishing contribution of a surface term to the variation of the action. We then investigate whether this surface term has an effect on the dynamics of the action-extremizing field configurations. This question appears to be surprisingly nontrivial in the case of the open FLRW geometry, since surface terms tend to grow as fast as volume terms in the infinite volume limit. We find that surface terms can be important for the dynamics of the field at a classical and at a quantum level, when there are supercurvature perturbations.
description: 21 pages, Latex, no figures