cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Dynamical characterization of $Z_{2}$ Floquet topological phases via quantum quenches
Creators: name: Zhang, Lin
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The complete characterization of a generic $d$-dimensional Floquet topological phase is usually hard for the requirement of information about the micromotion throughout the entire driving period. In a recent work [L. Zhang et al., Phys. Rev. Lett. 125, 183001 (2020)], an experimentally feasible dynamical detection scheme was proposed to characterize the integer Floquet topological phases using quantum quenches. However, this theory is still far away from completion, especially for free-fermion Floquet topological phases, where the states can also be characterized by $Z_{2}$ invariants. Here we develop the first full and unified dynamical characterization theory for the $Z_{2}$ Floquet topological phases of different dimensionality and tenfold-way symmetry classes by quenching the system from a trivial and static initial state to the Floquet topological regime through suddenly changing the parameters and turning on the periodic driving. By measuring the minimal information of Floquet bands via the stroboscopic time-averaged spin polarizations, we show that the topological spin texture patterns emerging on certain discrete momenta of Brillouin zone called the $0$ or $π$ gap highest-order band-inversion surfaces provide a measurable dynamical $Z_{2}$ Floquet invariant, which uniquely determines the Floquet boundary modes in the corresponding quasienergy gap and characterizes the $Z_{2}$ Floquet topology. The applications of our theory are illustrated via one- and two-dimensional models that are accessible in current quantum simulation experiments. Our work provides a highly feasible way to detect the $Z_{2}$ Floquet topology and completes the dynamical characterization for the full tenfold classes of Floquet topological phases, which shall advance the research in theory and experiments.
description: Published version
Highly structured disk around the planet host PDS 70 revealed by high-angular resolution observations with ALMA
Creators: name: Keppler, M.
name: Teague, R.
name: Bae, J.
name: Benisty, M.
name: Henning, T.
name: van Boekel, R.
name: Chapillon, E.
name: Pinilla, P.
name: Williams, J. P.
name: Bertrang, G. H. -M.
name: Facchini, S.
name: Flock, M.
name: Ginski, Ch.
name: Juhasz, A.
name: Klahr, H.
name: Liu, Y.
name: Mueller, A.
name: Perez, L. M.
name: Pohl, A.
name: Rosotti, G.
name: Samland, M.
name: Semenov, D.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: PDS 70b is the most robustly detected young planet imaged in the gap of a transition disk so far, found at a separation of ~195 mas (~22 au) from its host star and at a position angle of about 155 deg. This system is therefore a unique laboratory to characterize the properties of young planetary systems at the stage of their formation. We aim to trace direct and indirect imprints of PDS 70b on the gas and dust emission of the circumstellar disk in order to study the properties of this ~5 Myr young planetary system. We obtained ALMA band 7 observations of PDS 70 in dust continuum and $^{12}CO$ (3-2) and combined them with archival data resulting in an unprecedented angular resolution of about 70 mas (~8 au). We derive an upper limit on circumplanetary material at the location of PDS 70b of ~0.01 $M_{\oplus}$ and find a highly structured circumstellar disk in both dust and gas. The outer dust ring peaks at ~0.65" (74 au) and reveals a possible second unresolved peak at ~0.53" (60 au). The integrated intensity of CO also shows evidence of a depletion of emission at ~0.2" (23 au) with a width of ~0.1" (11 au). The gas kinematics show evidence of a deviation from Keplerian rotation inside $\lesssim$0.8" (91 au). This implies a pressure gradient that can account for the location of the dust ring well beyond the location of PDS 70b. Further in, we detect an inner disk which appears to be connected to the outer disk by a possible bridge feature in the North-West region in both gas and dust. We compare the observations to hydrodynamical simulations including a planet with different masses covering the estimated mass range previously derived from NIR photometry (~5-9 M$_{Jup}$). We find that even a planet with a mass of 10 M$_{Jup}$ may not be sufficient to explain the extent of the wide gap and an additional low-mass companion may be needed to account for the observed disk morphology.
description: Accepted for publication in A&A
RFI Response: Roadmap for TIP
Creators: name: Long Term Ecological Research Network
Publisher: name: Zenodo
Year: 2023
Subjects: LTER
Long-Term Ecological Research
Partnerships
NSF Technology, Innovation and Partnerships

description: LTER Network response to NSF Request for Information (RFI) on Developing a Roadmap for the Directorate for Technology, Innovation, and Partnerships at the National Science Foundation (document # 2023-08995). Response was developed and approved by the LTER Executive Board and submitted to TIPRoadmap-RFI@nsf.gov  on 27 July, 2023.
Rotenoid and isoflavone metabolites from an antioxidant seed extract of Dalbergia lanceolaria subsp. paniculata (roxb.) thoth
Creators: name: El-Kassem, Lamia T. Abou
name: Hawas, Usama W.
name: Abdelfattah, Mohamed S.
name: Ayat A. Mostafa
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biochemistry
subject: Medicine
subject: Pharmacology
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: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Plant Biology

description: A new rotenoid named 12-O-methylrotenolol along with five known rotenoid and isoflavone metabolites were isolated from the seeds of Dalbergia lanceolaria subsp. paniculata, collected from Egypt. The structures of these compounds were identified by physical and spectroscopic data measurements ([α]D, UV, 1D- and 2D-NMR and MS). The methanol extract of the seeds exhibited strong antioxidant activity with IC50 value 0.7 µg/µl against DPPH radical, in respect to quercetin as antioxidant reference (IC50 1.5 μM), while the tested compounds from this extract showed weak activities with IC50 values ranged from 19.6 to 33.0 µM.
Anisotropic thermodynamics and $T/\sqrt H$ scaling of d-wave superconductors in the vortex state
Creators: name: Vekhter, I.
name: Hirschfeld, P. J.
name: Carbotte, J. P.
name: Nicol, E. J.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The density of states of a 2D d-wave superconductor in the vortex state with applied magnetic field $\bf H$ in the plane is shown to exhibit fourfold oscillations as a function of the angle of the field with respect to the crystal axes. We find further that the frequency dependence of the density of states and the temperature dependence of transport coefficients obey different power laws, thus leading to different magnetic scaling functions, for field in the nodal and anti-nodal direction. We discuss the consequences of this anisotropy for measurements of the specific heat.
description: 4 pages, requires sprocl.sty and psfig.sty; manuscript for Proceedings of PPHMF-III
Non-Perturbative Renormalization Flow in Quantum Field Theory and Statistical Physics
Creators: name: Berges, J.
name: Tetradis, N.
name: Wetterich, C.
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We review the use of an exact renormalization group equation in quantum field theory and statistical physics. It describes the dependence of the free energy on an infrared cutoff for the quantum or thermal fluctuations. Non-perturbative solutions follow from approximations to the general form of the coarse-grained free energy or effective average action. They interpolate between the microphysical laws and the complex macroscopic phenomena. Our approach yields a simple unified description for O(N)-symmetric scalar models in two, three or four dimensions, covering in particular the critical phenomena for the second-order phase transitions, including the Kosterlitz-Thouless transition and the critical behavior of polymer chains. We compute the aspects of the critical equation of state which are universal for a large variety of physical systems and establish a direct connection between microphysical and critical quantities for a liquid-gas transition. Universal features of first-order phase transitions are studied in the context of scalar matrix models. We show that the quantitative treatment of coarse graining is essential for a detailed estimate of the nucleation rate. We discuss quantum statistics in thermal equilibrium or thermal quantum field theory with fermions and bosons and we describe the high temperature symmetry restoration in quantum field theories with spontaneous symmetry breaking. In particular, we explore chiral symmetry breaking and the high temperature or high density chiral phase transition in quantum chromodynamics using models with effective four-fermion interactions.
description: 178 pages, appears in Physics Reports
Endoscopic ultrasound-guided drainage of pelvic abscess: a systematic review and meta-analysis
Creators: name: Pu, Xinxin
name: Huang, Shu
name: Zhang, Lu
name: Zhang, Han
name: Xia, Huifang
name: Zeng, Xinyi
name: Lü, Muhan
name: Peng, Yan
name: Ren, Jing
name: Tang, Xiaowei
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Space Science
subject: Medicine
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Marine Biology
subject: Cancer
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences

description: As an emerging minimally invasive technology, endoscopic ultrasound (EUS) has been reported to treat pelvic abscess instead of surgical or image-guided percutaneous drainage (PCD) under certain conditions. The aim of this study was to assess the efficacy and safety of EUS-guided drainage for patients with pelvic abscesses. We conducted a comprehensive literature search on PubMed, Embase, Cochrane Library, and Web of Science databases (inception–March 2022). The main outcomes were technical success, clinical success, and complications. Comprehensive meta-analysis software was used to calculate the pooled event rate. Twelve studies containing 272 patients were included. These pelvic abscesses most frequently developed after abdominal and pelvic surgery (n = 180, 66.2%), inflammatory bowel disease (n = 32, 11.8%), and other inflammatory conditions. Respectively, the pooled technical and clinical success rate was 100% and 88.7% [95% confidence interval (CI): 83.8–92.2%, I2 = 1.0%, p < 0.001]. After excluding an individual study, the pooled rate of complications changed from 11.5% (95% CI: 7.4–17.4%, I2 = 38.8%, p < 0.001) to 8.2% (95% CI: 5.0–13.3%, I2 = 0, p < 0.001). EUS-guided drainage of the pelvic abscess was feasible, effective, and safe. Further randomized-controlled studies with large-sample sizes were required in the future.
Light Propagation in Inhomogeneous Universes II. Cosmological Parameter Survey
Creators: name: Premadi, Premana
name: Martel, Hugo
name: Matzner, Richard
name: Futamase, Toshifume
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Using a multiple-lens plane algorithm, we study light propagation in inhomogeneous universes, for 43 different COBE-normalized Cold Dark Matter models, with various values of the density parameter Omega_0, cosmological constant lambda_0, Hubble constant H_0, and rms density fluctuation sigma_8. This is the largest cosmological parameter survey ever done in this field. We performed a total of 3,798 experiments, each experiment consisting of propagating a square beam of angular size 21.9'' x 21.9'' composed of 116,281 light rays from the observer up to redshift z=3. These experiments provide statistics of the magnification, shear, and multiple imaging of distant sources. The results of these experiments can be compared with observations, and eventually help constraining the possible values of the cosmological parameters. Additionally, they provide insight into the gravitational lensing process and its complex relationship with the various cosmological parameters.
description: 45 pages, including 23 figures, Accepted for publication in The Astrophysical Journal Supplement
Robust Generalization Strategies for Morpheme Glossing in an Endangered Language Documentation Context
Creators: name: Ginn, Michael
name: Palmer, Alexis
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computation and Language (cs.CL)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Generalization is of particular importance in resource-constrained settings, where the available training data may represent only a small fraction of the distribution of possible texts. We investigate the ability of morpheme labeling models to generalize by evaluating their performance on unseen genres of text, and we experiment with strategies for closing the gap between performance on in-distribution and out-of-distribution data. Specifically, we use weight decay optimization, output denoising, and iterative pseudo-labeling, and achieve a 2% improvement on a test set containing texts from unseen genres. All experiments are performed using texts written in the Mayan language Uspanteko.
On exclusive Racah matrices $\bar S$ for rectangular representations
Creators: name: Morozov, A.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Group Theory (math.GR)
subject: Geometric Topology (math.GT)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We elaborate on the recent observation that evolution for twist knots simplifies when described in terms of triangular evolution matrix ${\cal B}$, not just its eigenvalues $Λ$, and provide a universal formula for ${\cal B}$, applicable to arbitrary rectangular representation $R=[r^s]$. This expression is in terms of skew characters and it remains literally the same for the 4-graded rectangularly-colored hyperpolynomials, if characters are substituted by Macdonald polynomials. Due to additional factorization property of the differential-expansion coefficients for the double-braid knots, explicit knowledge of twist-family evolution leads to a nearly explicit answer for Racah matrix $\bar S$ in arbitrary rectangular representation $R$. We also relate matrix evolution to existence of a peculiar rotation $U$ of Racah matrix, which diagonalizes the $Z$-factors in the differential expansion -- what can be a key to further generalization to non-rectangular representations $R$.
description: 12 pages
The common patterns of abundance: the log series and Zipf's law
Creators: name: Frank, Steven A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Probability (math.PR)
subject: FOS: Biological sciences
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: In a language corpus, the probability that a word occurs $n$ times is often proportional to $1/n^2$. Assigning rank, $s$, to words according to their abundance, $\log s$ vs $\log n$ typically has a slope of minus one. That simple Zipf's law pattern also arises in the population sizes of cities, the sizes of corporations, and other patterns of abundance. By contrast, for the abundances of different biological species, the probability of a population of size $n$ is typically proportional to $1/n$, declining exponentially for larger $n$, the log series pattern. This article shows that the differing patterns of Zipf's law and the log series arise as the opposing endpoints of a more general theory. The general theory follows from the generic form of all probability patterns as a consequence of conserved average values and the associated invariances of scale. To understand the common patterns of abundance, the generic form of probability distributions plus the conserved average abundance is sufficient. The general theory includes cases that are between the Zipf and log series endpoints, providing a broad framework for analyzing widely observed abundance patterns.
description: New extended introduction, minor editing
Quantum Optical Two-Atom Thermal Diode
Creators: name: Kargi, Cahit
name: Naseem, M. Tahir
name: Opatrný, Tomáš
name: Müstecaplıoğlu, Özgür E.
name: Kurizki, Gershon
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We put forward a quantum-optical model for a thermal diode based on heat transfer between two thermal baths through a pair of interacting qubits. We find that if the qubits are coupled by a Raman field that induces an anisotropic interaction, heat flow can become non-reciprocal and undergoes rectification even if the baths have equal dissipation rates and/or the qubits are resonant. The heat flow rectification is explained by four-wave mixing and Raman transitions between dressed states of the interacting qubits and are governed by a global master equation. The anisotropic two-qubit interaction is the key for this present simple quantum thermal diode, whose resonant operation allows for high-efficiency rectification of large heat currents. Effects of spatial overlap of the baths are addressed. We also discuss the possible realizations of the model system in various platforms including optomechanical systems, systems of trapped ions, and circuit QED.
description: Comments are welcome
Literature review of Strongyloides spp. in non-human primates from Strongyloides in non-human primates: significance for public health control
Creators: name: Nosková, Eva
name: Sambucci, Kelly M.
name: Petrželková, Klára J.
name: Červená, Barbora
name: Modrý, David
name: Pafčo, Barbora
Publisher: name: The Royal Society
Year: 2023
Subjects: classificationCode: 420299
subject: Epidemiology not elsewhere classified

description: Articles reporting the occurrence of Strongyloides (147 reports) in nonhuman primates, search the Web of Science and Scopus databases (keywords: parasites, Strongyloides, strongyloidiasis, primates, ape), indicating Strongyloides species, host species, location, and reference.
Quasinormal spectrum in the asymptotically safe gravity
Creators: name: Zinhailo, A. F.
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Asymptotically safe gravity is based on the idea of the dependence of the gravitational coupling upon the distance from the origin, approaching its classical value in the weak field regime. We consider three cases of identifying the cut-off parameter in the asymptotically safe gravity, leading to the three distinctive models for black holes. We find that the deviation of the fundamental mode from the Schwarzschild limit is a few percent, in contrast to the higher overtones, where the deviation reaches hundreds of percent, even when the fundamental mode almost coincides with the Schwarzschild mode. This behavior is connected with the fact that the quantum correction to the black hole spacetime is strong near the event horizon, but quickly falls off with distance and negligible near the peak of the effective potential surrounding the black hole.
description: 8 pages, 3 tables. Version to match the published one in Proceedings of RAGtime 23-25. Edited by Z. Stuchl\'ik, G. T\"or\"ok and V. Karas. Institute of Physics in Opava
Friction, order, and transverse pinning of a two-dimensional elastic lattice under periodic and impurity potentials
Creators: name: Kawaguchi, Takaaki
name: Matsukawa, Hiroshi
Publisher: name: arXiv
Year: 2000
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Frictional phenomena of two-dimensional elastic lattices are studied numerically based on a two-dimensional Frenkel-Kontorova model with impurities. It is shown that impurities can assist the depinning. We also investigate anisotropic ordering and transverse pinning effects of sliding lattices, which are characteristic of the moving Bragg glass state and/or transverse glass state. Peculiar velocity dependence of the transverse pinning is observed in the presence of both periodic and random potentials and discussed in the relation with growing order and discommensurate structures.
description: RevTeX, 4 pages, 5 figures. to appear in Phys. Rev. B Rapid Commun
Do T asymmetries for neutrino oscillations in uniform matter have a CP-even component?
Creators: name: Bernabeu, Jose
name: Segarra, Alejandro
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Observables of neutrino oscillations in matter have, in general, contributions from the effective matter potential. It contaminates the CP violation asymmetry adding a fake effect that has been recently disentangled from the genuine one by their different behavior under T and CPT. Is the genuine T-odd CPT-invariant component of the CP asymmetry coincident with the T asymmetry? Contrary to CP, matter effects in uniform matter cannot induce by themselves a non-vanishing T asymmetry; however, the question of the title remained open. We demonstrate that, in the presence of genuine CP violation, there is a new non-vanishing CP-even, and so CPT-odd, component in the T asymmetry in matter, which is of odd-parity in both the phase $δ$ of the flavor mixing and the matter parameter $a$. The two disentangled components, genuine $A^\mathrm{T;CP}_{αβ}$ and fake $A^\mathrm{T;CPT}_{αβ}$, could be experimentally separated by the measurement of the two T asymmetries in matter ($ν_α\leftrightarrow ν_β$) and ($\barν_α\leftrightarrow \barν_β$). For the ($ν_μ\leftrightarrow ν_e$) transitions, the energy dependence of the new $A^\mathrm{T;CPT}_{μe}$ component is like the matter-induced term $A^\mathrm{CP;CPT}_{μe}$ of the CP asymmetry which is odd under a change of the neutrino mass hierarchy. We have thus completed the physics involved in all observable asymmetries in matter by means of their disentanglement into the three independent components, genuine $A^\mathrm{CP;T}_{αβ}$ and fake $A^\mathrm{CP;CPT}_{αβ}$ and $A^\mathrm{T;CPT}_{αβ}$.
description: 12 pages, 1 figure
Weak field limit and gravitational waves in higher-order gravity
Creators: name: Capozziello, Salvatore
name: Capriolo, Maurizio
name: Caso, Loredana
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We derive the weak field limit for a gravitational Lagrangian density $L_{g}=(R+a_{0}R^{2}+\sum_{k=1}^{p} a_{k}R\Box^{k}R)\sqrt{-g}$ where higher-order derivative terms in the Ricci scalar $R$ are taken into account. The interest for this kind of effective theories comes out from the consideration of the infrared and ultraviolet behaviors of gravitational field and, in general, from the formulation of quantum field theory in curved spacetimes. Here, we obtain solutions in weak field regime both in vacuum and in the presence of matter and derive gravitational waves considering the contribution of $R\Box^{k}R$ terms. By using a suitable set of coefficients $a_{k}$, it is possible to find up to $(p+2)$ normal modes of oscillation with six polarization states with helicity 0 or 2. Here $p$ is the higher order term in the $\Box$ operator appearing in the gravitational Lagrangian. More specifically: the mode $ω_{1}$, with $k^{2}=0$, has transverse polarizations $ε_{μν}^{\left(+\right)}$ and $ε_{μν}^{\left(\times\right)}$ with helicity 2; the $(p+1)$ modes $ω_{m}$, with $k^{2}\neq0$, have transverse polarizations $ε_{μν}^{\left(1\right)}$ and non-transverse ones $ε_{μν}^{\left(\text{TT}\right)}$, $ε_{μν}^{\left(\text{TS}\right)}$, $ε_{μν}^{\left(L\right)}$ with helicity 0.
description: 21 pages, to appear in Int.J.Geom.Meth.Mod.Phys
Spin-Wave Excitations of Half-Filled Kondo Lattice Model
Creators: name: Matsushita, Yasuhiro
name: Shiina, Ryousuke
name: Ishii, Chikara
Publisher: name: arXiv
Year: 1998
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The spin excitations in the antiferromagnetic phase of half-filled Kondo lattice model are studied by means of the decoupling approximation for spin Green's function. The spin-wave spectrum is calculated as a function of Kondo coupling, and this is used to calculate the thermodynamic quantities at low temperatures. The Néel temperature of the form $T_{\rm N}=0.087{J}^2\ln{(1/J)}$ is obtained for the 3-dimensional case in the weak-coupling limit. It is pointed out that the ratio of the spin-wave velocity to the Néel temperature $v_s/T_{\rm N}$ is enhanced as the Kondo coupling becomes small, reflecting the long-range nature of effective interactions between localized spins.
description: 6 pages, LaTeX, 2 figures
Pulsed interactions unify reaction-diffusion and spatial nonlocal models for biological pattern formation
Creators: name: Colombo, Eduardo H.
name: Martinez-Garcia, Ricardo
name: Calabrese, Justin M.
name: López, Cristóbal
name: Hernández-García, Emilio
Publisher: name: arXiv
Year: 2023
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: The emergence of a spatially-organized population distribution depends on the dynamics of the population and mediators of interaction (activators and inhibitors). Two broad classes of models have been used to investigate when and how self-organization is triggered, namely, reaction-diffusion and spatially nonlocal models. Nevertheless, these models implicitly assume smooth propagation scenarios, neglecting that individuals many times interact by exchanging short and abrupt pulses of the mediating substance. A recently proposed framework advances in the direction of properly accounting for these short-scale fluctuations by applying a coarse-graining procedure on the pulse dynamics. In this paper, we generalize the coarse-graining procedure and apply the extended formalism to new scenarios in which mediators influence individuals' reproductive success or their motility. We show that, in the slow- and fast-mediator limits, pulsed interactions recover, respectively, the reaction-diffusion and nonlocal models, providing a mechanistic connection between them. Furthermore, at each limit, the spatial stability condition is qualitatively different, leading to a timescale-induced transition where spatial patterns emerge as mediator dynamics becomes sufficiently fast.
Anti-inflammatory effect of fucoxanthin on dextran sulfate sodium-induced colitis in mice
Creators: name: Yang, Yuan-Ping
name: Tong, Qiao-Yun
name: Zheng, Shi-Hua
name: Zhou, Ming-Dong
name: You-Meng Zeng
name: Zhou, Ting-Ting
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biochemistry
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: Immunology
subject: FOS: Clinical medicine
subject: Cancer

description: The anti-inflammatory activities of fucoxanthin, a marine carotenoid derived from the macroalgae and microalgae, have been demonstrated in the previous studies. However, the effect of fucoxanthin on ulcerative colitis (UC), an inflammatory bowel disease, was still unclear. In this study, we evaluated the in vivo anti-inflammatory effect of fucoxanthin on dextran sulfate sodium(DSS)-induced colitis in mice. Fucoxanthin at the doses of 50 and 100 mg/kg/day significantly protected against DSS-induced gradual loss of body weight, exhibited inhibitory effects on the DSS-induced increase of disease activity index and colon shortening. Moreover, fucoxanthin treatment resulted in a marked amelioration of the histological damage in the colon, and reduced the colonic PGE2 levels in colitic mice. In addition, the DSS-induced overexpressions of inflammation-related molecules including COX‐2 and NF-κB were significantly decreased in fucoxanthin-treated mice. These finding suggested that the use of fucoxanthin provides a new and attractive alternative to control UC.
On an Estimation of the Coronal Magnetic Field Strength from Spectrographic Observations in the Microwave Range
Creators: name: Ledenev, V. G.
name: Karlicky, M.
name: Yan, Y.
name: Fu, Q.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Observations of the solar radio emission in the microwave frequency range show fine structures consisting of a number of the almost parallel narrow frequency bands. We interpret these bands as the cyclotron harmonics plasma emission. This emission is generated by the anisotropic electron beam, which excites longitudinal waves on the normal Doppler effect resonance. Then the longitudinal waves convert into the radio emission on the second harmonic of the longitudinal waves frequency and sometimes into the fundamental one. Estimations of the magnetic field strength made on the basis of such a model give the values of the magnetic field in the microwave burst sources as ~ 100-200 G. The estimations of density variations are also given.
description: 6 pages, 2 Postscript figures
Plasmonic Parametric Absorbers
Creators: name: Fardad, Shima
name: Salandrino, Alessandro
Publisher: name: arXiv
Year: 2018
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Exploiting the dynamics of Plasmonic Parametric Resonance (PPR), we introduce the theory of Plasmonic Parametric Absorbers (PPA). The key insight informing the PPA idea is that in the PPR process a pump field experiences an extinction rate that strongly depends on the intensity of the pump itself, creating two distinct regimes: one of weak absorption under low intensity illumination, and one of strong absorption when the threshold of parametric resonance is met or exceeded. Due to this reverse saturable absorption behavior, PPAs are promising candidates for optical limiting applications.
Additional file 1 of CYP3A4 and CYP11A1 variants are risk factors for ischemic stroke: a case control study
Creators: name: Gao, Ning
name: Tang, Hong
name: Gao, Ling
name: Tu, Guolong
name: Luo, Han
name: Xia, Ying
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Pharmacology
subject: Environmental Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Developmental Biology

description: Additional file 1:Table S1. Primers sequence of PCR and UEP used in this study. Table S2. Relationships between CYP3A4 polymorphism and Ischemic stroke risk.
Imaging Electron Wave Functions of Quantized Energy Levels in Carbon Nanotubes
Creators: name: Venema, Liesbeth C.
name: Wildoer, Jeroen W. G.
name: Janssen, Jorg W.
name: Tans, Sander J.
name: Tuinstra, Hinne L. J. Temminck
name: Kouwenhoven, Leo P.
name: Dekker, Cees
Publisher: name: arXiv
Year: 1998
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Carbon nanotubes provide a unique system to study one-dimensional quantization phenomena. Scanning tunneling microscopy is used to observe the electronic wave functions that correspond to quantized energy levels in short metallic carbon nanotubes. Discrete electron waves are apparent from periodic oscillations in the differential conductance as a function of the position along the tube axis, with a period that differs from that of the atomic lattice. Wave functions can be observed for several electron states at adjacent discrete energies. The measured wavelengths are in good agreement with the calculated Fermi wavelength for armchair nanotubes.
description: 11 pages, 4 figures in seperate PDF file
Babycurus subpunctatus Borelli 1925
Creators: name: Kovařík, František
name: Lowe, Graeme
name: Seiter, Michael
name: Plíšková, Jana
name: Šťáhlavský, František
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Scorpiones
Buthidae
Babycurus
Babycurus subpunctatus

description: Babycurus subpunctatus Borelli, 1925
(Figures 56–57, 62–63, 66, 78–86, 103–123, Table 2)
 Babycurus subpunctatus Borelli, 1925: 318; Kovařík, 1998: 104; Fet & Lowe, 2000: 79; Kovařík, 2000: 256; Kovařík, 2003: 134.
TYPE LOCALITY AND TYPE DEPOSITORY. Somalia, Cuban Cubu; MCSN.
MATERIAL EXAMINED. Ethiopia, Somali State, Liben region, between Filtu and Dolo Odo, 04°50'07.5"N 40°55'13.5"E, 912 m a.s.l. (Fig. 120, locality No. 14 EI), 1♂ 1♀ (Figs. 110–122), 20.XI.2014, leg. F. Kovařík, FKCP. Somalia, Cuban Cubu, IX.1923, 1♀ (holotype, Figs. 80–82, 103–109), leg. S. Patrizi, MCSN.
DIAGNOSIS. Total length 22.5 mm (male) – 32.25 mm (females). Coloration yellowish brown to orange. Chelicerae yellow without reticulation. Pedipalp movable fingers with 6 principal rows of denticles and apical row of four denticles. Last row has one external and no internal granule. Pectines with 16–17 teeth in both sexes. First metasomal segment has 10 carinae, second through fourth segments have eight carinae. Telson setose, smooth, with subaculear tooth short and pointed. Vesicle elongate, ellipsoidal. Aculeus curved, slightly shorter than vesicle. Sexual dimorphism minor, adult males with chela slightly narrower in males (ratio chela length manus width 5.1 in male and 4.3– 4.6 in females); there is no difference in length and width of metasomal segments (ratio metasomal segment V length to width 2.44–2.9 in both sexes); posterior margin of sternite V without smooth median patch in both sexes; fingers of pedipalps almost straight in both sexes.
 COMMENTS ON LOCALITY. The both specimens were collected under stones along a road on the locality 14EI (Fig. 120) during a day (temperature 34.6 ºC and 38% humidity). Apart from B. subpunctatus, the first author (FK) recorded Hottentotta trilineatus, Parabuthus cf. liosoma (Ehrenberg, 1828), Uroplectes sp., and two very common species of Pandinus sp. at this locality.
description: Published as part of Kovařík, František, Lowe, Graeme, Seiter, Michael, Plíšková, Jana & Šťáhlavský, František, 2015, Scorpions of Ethiopia (Arachnida: Scorpiones). Part II. Genus Babycurus Karsch, 1886 (Buthidae), with description of two new species, pp. 1-31 in Euscorpius 196 on page 30
Strongyloides spp. sequences obtained from humans and non-human primates available in the GenBank database from Strongyloides in non-human primates: significance for public health control
Creators: name: Nosková, Eva
name: Sambucci, Kelly M.
name: Petrželková, Klára J.
name: Červená, Barbora
name: Modrý, David
name: Pafčo, Barbora
Publisher: name: The Royal Society
Year: 2023
Subjects: classificationCode: 420299
subject: Epidemiology not elsewhere classified

description: Genomic DNA sequences available in the GenBank database labelled as S. stercoralis, S. fuelleborni, S. cebus and Strongyloides sp. and having a primate indicated as the host. Markers such as 18S rDNA, ITS1, 5.8S, ITS2, 28S rDNA, cox1, 16S rDNA, and complete mitochondrial genomes were included in the analysis (n=2,347). Sequences were sorted based on the marker, host species and country as provided in the GenBank.
Neobuthus Hirst 1911
Creators: name: Lowe, Graeme
name: Kovařík, František
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Scorpiones
Buthidae
Neobuthus

description: Neobuthus Hirst, 1911
(Figs. 1–165, Tables 1–5)
 Neobuthus Hirst, 1911: 462; Kovařík & Lowe, 2012: 2; Kovařík et al., 2013: 4, 14; for complete generic synonymy prior to 2012, see Kovařík & Lowe, 2012: 2.
 EMENDED DIAGNOSIS. Small buthid scorpions, total length 18–23 mm (males), 22–31 mm (females); carapace strongly trapezoidal, surface granular with only anterior median carinae developed; ventral aspect of cheliceral fixed finger with single denticle; tergites with three carinae, of which the lateral pair may be less conspicuous; sternites III–VI with finely micro-denticulate posterior margins, lacking larger non-contiguous denticles; pectines with fulcra, hirsute; metasomal segments I–III with 8–10 carinae, segment V with enlarged lobate dentition on posterior ventrolateral carinae; telson rather bulbous, vesicle steeply inclined posteriorly, aculeus shorter than vesicle; macrosetae on vesicle oriented in anterior direction; pedipalps short with stout segments, movable finger of pedipalp with 4–6 subrows of primary denticles flanked by mid-row internal and proximal external accessory denticles, 3 denticles just proximal to terminal denticle; movable finger without dense terminal brush of setae on ventral surface; strongly spatulate microsetae not present on termini of fixed and movable fingers; pedipalp finger margins straight, without proximal scalloping or basal lobe and notch; trichobothrial pattern type A, orthobothriotaxic or neobothriotaxic minorante, dorsal trichobothria of femur arranged in β- configuration; trichobothrium d 2 of pedipalp femur present or absent on dorsal surface, d 2 of pedipalp patella present or absent, d 3 of pedipalp patella situated internal to dorsomedian carina, V 2 of chela manus strongly displaced internally relative to V 1, chela fixed finger with db located in proximal half, proximal to est; tibial spurs present on legs III–IV; sexual dimorphism in setation, granulation and metasomal dentition: pedipalps, legs and metasoma with weaker granulation and long, filiform macrosetae in females, stronger granulation and shorter (often spiniform) macrosetae in males, ventrosubmedian and ventrolateral carinae on segments II–III strongly developed with enlarged dentition in females, with regular dentition in males; capsule of hemispermatophore with 4 lobes, flagellum well separated from lobes.
 SUBORDINATE TAXA. N. awashensis Kovařík et Lowe, 2012, N. berberensis Hirst, 1911 (type species), N. cloudsleythompsoni Lourenço, 2001, N. eritreaensis sp. n., N. ferrugineus (Kraepelin, 1898), N. kutcheri sp. n., and N. sudanensis Lourenço, 2005 (taxonomic position unclear).
description: Published as part of Lowe, Graeme & Kovařík, František, 2016, Scorpions of the Horn of Africa (Arachnida, Scorpiones). Part V. Two new species of Neobuthus Hirst, 1911 (Buthidae), from Ethiopia and Eritrea, pp. 1-46 in Euscorpius 224 on page 2
Photonic thermal conduction by infrared plasmonic resonators in semiconductor nanowires
Creators: name: Tervo, Eric J.
name: Gustafson, Michael E.
name: Zhang, Zhuomin M.
name: Cola, Baratunde A.
name: Filler, Michael A.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Photons typically do not contribute to thermal transport within a solid due to their low energy density and tendency to be quickly absorbed. We propose a practical material system - infrared plasmonic resonators embedded in a semiconductor nanowire - that leverages near-field electromagnetic coupling to achieve photonic thermal transport comparable to the electronic and phononic contributions. We analytically show photonic thermal conductivities up to about 1 W m-1 K-1 for 10 nm diameter Si and InAs nanowires containing repeated resonators at 500 K. The nanowire system outperforms plasmonic particles in isotropic environments and presents a pathway for photonic thermal transport to exceed that of phonons and electrons.
description: 10 pages, 4 figures, plus supplementary information
Spin transitions in a small Si quantum dot
Creators: name: Rokhinson, L. P.
name: Guo, L. J.
name: Chou, S. Y.
name: Tsui, D. C.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We have studied the magnetic field dependence of the ground state energies in a small Si quantum dot. At low fields the first five electrons are added in a spin-up -- spin-down sequence minimizing the total spin. This sequence does not hold for larger number of electrons in the dot. At high fields the dot undergoes transitions between states with different spins driven entirely by Zeeman energy. We identify some features that can be attributed to transitions between different spin configurations preserving the total spin of the dot. For a few peaks we observed large linear shifts that correspond to the change of the spin of the dot by 3/2. Such a change requires that an electron in the dot flips its spin during every tunneling event.
description: Revtex, 5 pages, 3 figures
Stable Singularity-free Cosmological Solutions in non-projectable Horava-Lifshitz Gravity
Creators: name: Fukushima, Mitsuhiro
name: Misonoh, Yosuke
name: Miyashita, Shoichiro
name: Sato, Seiga
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We find stable singularity-free cosmological solutions in non-flat Friedmann-Lemaître-Robertson-Walker (FLRW) spacetime in the context of Hořava-Lifshitz (HL) theory. Although we encounter the negative squared effective masses of the scalar perturbations in the original HL theory, the behaviors can be remedied by relaxing the projectability condition. In our analysis, the effects from the background dynamics are taken into account as well as the sign of the coefficients in the quadratic action for perturbations. More specifically, we give further classification of the gradient stability/instability into five types. These types are defined in terms of the effective squared masses of perturbations $\mathcal{M}^2$, the effective friction coefficients in perturbation equations $\mathcal{H}$ and these magnitude relations $|\mathcal{M}^2|/\mathcal{H}^2$. Furthermore, we indicate that oscillating solutions possibly show a kind of resonance especially in open FLRW spacetime. We find that the higher order spatial curvature terms with Lifshitz scaling $z=3$ are significant to suppress the instabilities due to the background dynamics.
description: 23 pages, 14 figures, 4 tables; v2: added some comments and reference
Quantization of Second Order Fermions
Creators: name: Ferro-Hernández, Rodolfo
name: Olmos, Julio
name: Peinado, Eduardo
name: Vaquera-Araujo, Carlos A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The quantization of a massive spin $1/2$ field that satisfies the Klein-Gordon equation is studied. The framework is consistent, provided it is formulated as a pseudo-hermitian quantum field theory by the redefinition of the field dual and the identification of an operator that modifies the inner product of states in Hilbert space to preserve a real energy spectrum and unitary evolution. Since the fermion field has mass dimension one, the theory admits renormalizable fermion self-interactions.
description: 4 pages
Cosmological Density and Power Spectrum from Peculiar Velocities: Nonlinear Corrections and PCA
Creators: name: Silberman, L.
name: Dekel, A.
name: Eldar, A.
name: Zehavi, I.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We allow for nonlinear effects in the likelihood analysis of galaxy peculiar velocities, and obtain ~35%-lower values for the cosmological density parameter Om and the amplitude of mass-density fluctuations. The power spectrum in the linear regime is assumed to be a flat LCDM model (h=0.65, n=1, COBE) with only Om as a free parameter. Since the likelihood is driven by the nonlinear regime, we "break" the power spectrum at k_b=0.2 h/Mpc and fit a power law at k>k_b. This allows for independent matching of the nonlinear behavior and an unbiased fit in the linear regime. The analysis assumes Gaussian fluctuations and errors, and a linear relation between velocity and density. Tests using proper mock catalogs demonstrate a reduced bias and a better fit. We find for the Mark3 and SFI data Om_m=0.32+-0.06 and 0.37+-0.09 respectively, with sigma_8*Om^0.6 = 0.49+-0.06 and 0.63+-0.08, in agreement with constraints from other data. The quoted 90% errors include cosmic variance. The improvement in likelihood due to the nonlinear correction is very significant for Mark3 and moderately so for SFI. When allowing deviations from LCDM, we find an indication for a wiggle in the power spectrum: an excess near k=0.05 and a deficiency at k=0.1 (cold flow). This may be related to the wiggle seen in the power spectrum from redshift surveys and the second peak in the CMB anisotropy. A chi^2 test applied to modes of a Principal Component Analysis (PCA) shows that the nonlinear procedure improves the goodness of fit and reduces a spatial gradient of concern in the linear analysis. The PCA allows addressing spatial features of the data and fine-tuning the theoretical and error models. It shows that the models used are appropriate for the cosmological parameter estimation performed. We address the potential for optimal data compression using PCA.
description: 18 pages, LaTex, uses emulateapj.sty, ApJ in press (August 10, 2001), improvements to text and figures, updated references
ЎЗБЕКИСТОН НЕФТЬ ВА ГАЗ ТАРМОҒИДА ДАВЛАТ ИШТИРОКИДАГИ КОРХОНАЛАРНИ БОШҚАРИШ МУАММОЛАРИ ВА УЛАРНИ ҲАЛ ЭТИШ ЙЎЛЛАРИ
Creators: name: Нуралиев, Рустам
Publisher: name: Zenodo
Year: 2024

description: Ушбу мақолада, Ўзбекистон нефть ва газ саноати иқтисодиётнинг энг йирик сегменти бўлиб, бутун республика иқтисодиётини ривожлантириш учун энг муҳим стратегик аҳамиятига эга эканлиги ёритилган. Шу сабабли, мақолада “Ўзбекнефтегаз” акциядорлик жамиятининг давлат иштирокидаги корхоналарга умумий тавсиф ва уларни бошқариш тизими таҳлили кўрсатилган. Давлат иштирокидаги корхоналарни бошқариш муаммоларини ечиш йўллари, бошқарувни янада самарали ташкил этиш ва ривожлантириш учун таклиф ва тавсиялар берилган.
OCENA EFEKTYWNOŚCI EKONOMICZNEJ BRANŻY PASZOWEJ W POLSCE W LATACH 2010-2015
Creators: name: Czerwińska-Kayzer, Dorota
name: Bieniasz, Anna
name: Czerwińska-Kayzer, Dorota
name: Bieniasz, Anna
Publisher: name: Unknown
Year: 2017
Subjects: subject: Agribusiness
subject: efektywność ekonomiczna, rentowność, przemysł paszowy

description: Celem pracy jest ocena efektywności ekonomicznej branży paszowej w układzie klas w Polsce w latach 2010-2015, którą przeprowadzono na bazie niepublikowanych danych GUS. W pracy zastosowano podejście indukcyjne, umożliwiające przedstawienie szczegółowej struktury badanego zjawiska w połączeniu z metodą analizy wskaźnikowej. Efektywność branży paszowej była relatywnie wyższa niż w przemyśle spożywczym, zwłaszcza w odniesieniu do wydajności pracy i rentowności aktywów oraz kapitału własnego. Z kolei w układzie klas efektywność była zróżnicowana. Generalnie wyższą efektywnością cechowały się przedsiębiorstwa produkujące karmę dla zwierząt domowych.