cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Dilute Fermi gas in quasi-one-dimensional traps: From weakly interacting fermions via hard core bosons to weakly interacting Bose gas
Creators: name: Tokatly, I. V.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We study equilibrium properties of a cold two-component Fermi gas confined in a quasi-one-dimensional trap of the transverse size $l_{\perp}$. In the dilute limit ($nl_{\perp}\ll 1$, where $n$ is the 1D density) the problem is exactly solvable for an arbitrary 3D fermionic scattering length $a_{F}$. When $l_{\perp}/a_{F}$ goes from $-\infty$ to $+\infty$, the system successively passes three regimes: weakly interacting Fermi gas, hard core Bose gas and weakly coupled Bose gas. The regimes are separated by two crossovers at $a_{F}\sim \pm nl_{\perp}^{2}$. In conclusion we discuss experimental implications of these results.
description: RevTex4, 4 pages, 2 eps figures; revised version with new references and extended discussion of the physics of qusi-1D "BCS-BEC" crossover
Supersolid Stripes Enhanced by Correlations in a Raman Spin-Orbit-Coupled System
Creators: name: Sánchez-Baena, Juan
name: Medico, Jordi Boronat
name: Castrillejo, Ferran Mazzanti
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: A Bose gas under the effect of Raman Spin-Orbit Coupling (SOC) is analyzed using the Discrete Spin T-moves Diffusion Monte Carlo method. By computing the energy as well as the static structure factor and the superfluid fraction of the system, the emergence of an energetically favorable supersolid stripe state is observed, which is in agreement with recent observations. A significant enhancement of the stability of the stripe phase with respect to the mean-field prediction is observed when the strength of the inter-atomic correlations is increased. We also quantify and characterize the degree of superfluidity of the stripes and show that this quantity is mostly determined by the ratio between the Raman coupling and the square of the momentum difference between the pair of SOC inducing laser beams.
description: 5 pages, 4 figures
DO DOMESTIC FOOD PRODUCERS IN FOOD DEFICIT COUNTRIES BENEFIT FROM INTERNATIONAL TRADE? EVIDENCE FROM RICE MARKETS IN FIVE WEST AFRICAN COUNTRIES
Creators: name: Akande, Olaide Rufai
name: Akande, Olaide Rufai
Publisher: name: Unknown
Year: 2012
Subjects: subject: International Relations/Trade
subject: Producer prices
subject: market liberalization
subject: price transmission
subject: producer price volatility

description: Motivated by the negative impact of the 2006-2008 food crises on rice consumer prices and welfare, the impact of international trade on producer prices of rice in food deficit countries was examined using data collected from five randomly selected West African countries and analyzed with econometric GARCH estimation procedure. The finding shows that domestic rice producers in food deficit countries benefit from international prices in countries where market liberalization is not significantly associated with instability in domestic producer prices. Further evidence leads to the conclusion that: urbanization results into preference for imported rice and low producer prices in some areas; market information system, market access infrastructure and integration of domestic markets with regional and global types are poorly developed; official development assistance (ODA) is an important policy tool for development of rice sector in these areas; and that policy efforts in these countries at controlling producer price volatility during the 2006-2008 food crises were largely effective. The study suggests that in order to ensure a competitive domestic rice market, curb producer price volatility and benefit from international trade, a concomitant heavy public investment in agriculture, development of market access infrastructure, market information system as well as market integration are necessary policy actions in these countries.
Induced photon emission from quark jets in ultrarelativistic heavy-ion collisions
Creators: name: Zakharov, B. G.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the induced photon bremsstrahlung from a fast quark produced in AA-collisions due to multiple scattering in quark-gluon plasma. For RHIC and LHC conditions the induced photon spectrum is sharply peaked at photon energy close to the initial quark energy. In this region the contribution of the induced radiation to the photon fragmentation function exceeds the ordinary vacuum radiation. Contrary to previous analyses our results show that at RHIC and LHC energies the final-state interaction effects in quark-gluon plasma do not suppress the direct photon production, and even may enhance it at p_{T} about 5-15 GeV.
description: 11 pages, 4 figures
Parasthetops Perkins & Balfour-Browne 1994
Creators: name: Perkins, Philip D.
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Hydraenidae
Parasthetops

description: Parasthetops Perkins & Balfour­Browne, 1994
 Parasthetops Perkins & Balfour­Browne, 1994: 37 (type species Parasthetops nigritus Perkins & Balfour­Browne, 1994).
 The genus Parasthetops comprises 21 species, including 13 new species described below. The genus has a wide distribution in South Africa and Namibia (Fig. 88), and there is one known locality in Zimbabwe. The majority of species and specimens have been collected from stones in the current of streams or rivers. New distribution records for four of the eight previously described species of Parasthetops are given below. New locality records are not yet available for the following species (Perkins & Balfour­Browne, 1994; map figures in parentheses): P. andreaei (Fig. 93), P. camurus (Fig. 100), P. reflexus (Fig. 94), and P. rufulus (Fig. 94).
 The division of Parasthetops species into groups is herein based primarily on dorsal sculpture and general body form. In most groups the form of the male genitalia corroborate the placement of species. In other cases, however, there is considerable difference in aedeagal form within a species group. For example, the aedeagi of the three species in the camurus group (Figs. 33–35) are quite dissimilar from one another; however, none of the three show any obvious similarity to the aedeagi of species in other groups. Additional study is needed to confirm the composition of some of the species groups. Perhaps additional groups will become evident when more new species are discovered.
description: Published as part of Perkins, Philip D., 2008, Facial affect recognition in individuals at clinical high risk for psychosis, pp. 1-124 in Zootaxa 1864 on page 10, DOI: 10.17615/mqt8-8z21, http://zenodo.org/record/5133132
MOESM1 of A population-based cohort study of mortality of intensive care unit patients with liver cirrhosis
Creators: name: Huang, Yu-Feng
name: Chao-Shun Lin
name: Yih-Giun Cherng
name: Chun-Chieh Yeh
name: Ray-Jade Chen
name: Ta-Liang Chen
name: Chien-Chang Liao
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 1: Figure S1. Flow chart for selecting intensive care unit patients with or without liver cirrhosis, 2006-2013. Table S1. International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM) codes of diseases. Table S2. Stratified analysis and effects of cirrhosis-related clinical indicators on ICU mortality. Table S3. Stratified analysis and effects of cirrhosis-related clinical indicators on one-year mortality of ICU patients. Table S4. The actual survival starting at the day of ICU admission in patients with and without liver cirrhosis
Scattering of signal in vertical granular chain with impurities
Creators: name: Xu, Aiguo
Publisher: name: arXiv
Year: 2003
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We investigate the scattering process of impulse from impurities in vertical granular chain system under gravity. Most of the studies are focused on the case of light impurities. The reflection rates follow power laws with the impuity depth. There is a valley in the curve of reflection rate versus the initial perturbation strength and the curve is not symmetric. Some results on the scattering process from heavy impurities are also presented. There is a transition region in the initial velocity space. Through this region the exponent for leading peak changes smoothly from its saturant value in small $ v_i$ side to its saturant value in large $v_i$ side; the exponent for signal speed changes smoothly from its saturant value in small $v_i$ side to its saturant value in large $v_i$ side. Both the peak of the exponent for reflection rate and the valley for the reflection rate versus $v_i$ also locate within this transition region.
description: 7 figures
Gradient estimates for the constant mean curvature equation in hyperbolic space
Creators: name: López, Rafael
Publisher: name: arXiv
Year: 2019
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 35J62, 35J25, 35J93, 35B38, 53A10

description: We establish gradient estimates for solutions to the Dirichlet problem for the constant mean curvature equation in hyperbolic space. We obtain these estimates on bounded strictly convex domains by using the maximum principles theory of $Φ$-functions of Payne and Philippin. These estimates are then employed to solve the Dirichlet problem when the mean curvature $H$ satisfies $H<1$ under suitable boundary conditions.
Survival Analysis of Cereal Crop Variety Innovations in the UK
Creators: name: Srinivasan, Chittur S.
name: Matchaya, Greenwell C.
name: Srinivasan, Chittur S.
name: Matchaya, Greenwell C.
Publisher: name: Unknown
Year: 2012
Subjects: subject: Crop Production/Industries
subject: Research and Development/Tech Change/Emerging Technologies
subject: Survival Analysis
subject: Plant Variety Protection
subject: Intellectual Property Rights

description: This paper explores the changing survival patterns of cereal crop variety innovations in the UK since the introduction of plant breeders’ rights in the mid-1960s. Using non-parametric, semi-parametric and parametric approaches, we examine the determinants of the survival of wheat variety innovations, focusing on the impacts of changes to Plant Variety Protection (PVP) regime over the last four decades. We find that the period since the introduction of the PVP regime has been characterised by the accelerated development of new varieties and increased private sector participation in the breeding of cereal crop varieties. However, the increased flow of varieties has been accompanied by a sharp decline in the longevity of innovations. These trends may have contributed to a reduction in the returns appropriated by plant breeders from protected variety innovations and may explain the decline of conventional plant breeding in the UK. It may also explain the persistent demand from the seed industry for stronger protection. The strengthening of the PVP regime in conformity with the UPOV Convention of 1991, the introduction of EU-wide protection through the Community Plant Variety Office and the introduction of royalties on farm-saved seed have had a positive effect on the longevity of protected variety innovations, but have not been adequate to offset the long term decline in survival durations.
Supporting data: "Bosonic condensation of exciton-polaritons in an atomically thin crystal" Nature Materials publication
Creators: name: Solanas, Carlos Antón
name: Harder, Tristan
name: Klaas, Martin
name: Sefaattin Tongay
name: Kavokin, Alexey
name: Cai, Hui
name: Watanabe, Kenji
name: Taniguchi, Takashi
name: Sedov, Evgeny
name: Schneider, Christian
name: Klembt, Sebastian
name: Suchomel, Holger
name: Waldherr, Max
name: Höfling, Sven
Publisher: name: figshare
Year: 2021
Subjects: subject: Condensed Matter Physics
subject: FOS: Physical sciences

description: Set of txt files containing the data reported in the figures of the main text of the Nature Materials publication entitled "Bosonic condensation of exciton-polaritons in an atomically thin crystal".
On the Value of Agricultural Biodiversity
Creators: name: Di Falco, Salvatore
name: Di Falco, Salvatore
Publisher: name: Unknown
Year: 2012
Subjects: subject: Crop Production/Industries
subject: agrobiodiversity
subject: ecosystem services
subject: food production
subject: resilience
subject: developing countries

description: Crop biodiversity is very important for both the functioning of ecological systems and the generation of a vast array of ecosystem services. More agricultural biodiversity is associated with higher agriculture production and lower risk exposure. This article explores the recent contributions on the economics of agrobiodiversity. The focus is (mostly) on the empirical literature. Future issues are also highlighted.
The Coma Cluster at gamma-ray energies: multifrequency constraints
Creators: name: Reimer, A.
name: Reimer, O.
name: Schlickeiser, R.
name: Iyudin, A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The Coma cluster exhibits evidence for a high-energetic non-thermal particle population. At frequencies >1 GHz recent radio halo observations confirm a significant spectral steepening of the volume-integrated emission. We calculate the volume-averaged high-energy spectrum due to inverse Compton scattering off the CMB radiation field and non-thermal bremsstrahlung according to an exponential cutoff in the electron spectrum as deduced from the radio observations. The synchrotron radiation from secondary pairs, created from the decay of charged mesons produced in hadronic pp-interactions, is found to set significant constraints on the energy content of relativistic hadrons in Coma. This limits the maximum flux at high energies. Our findings support a low ratio of relativistic hadron to thermal energy density. Predictions for Coma's high energy emission are discussed in the light of current and expected abilities of upcoming gamma-ray instruments.
description: 7 pages, 2 figures, A&A, accepted; Minor changes to reflect the accepted version
Phase-resolved gamma-ray spectroscopy of the Crab pulsar observed by POLAR
Creators: name: Li, Han-Cheng
name: Gauvin, Neal
name: Ge, Ming-Yu
name: Hajdas, Wojtek
name: Kole, Merlin
name: Li, Zheng-Heng
name: Produit, Nicolas
name: Song, Li-Ming
name: Sun, Jian-Chao
name: Szabelski, Jacek
name: Tymieniecka, Teresa
name: Yuan-HaoWang
name: Wu, Bo-Bing
name: Wu, Xin
name: Xiong, Shao-Lin
name: Shuang-NanZhang
name: Zhang, Yong-Jie
name: Zheng, Shi-Jie
Publisher: name: arXiv
Year: 2019
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The POLAR detector is a space based Gamma-Ray Burst (GRB) polarimeter sensitive in the 15-500 keV energy range. Apart from its main scientific goal as a Gamma-Ray Burst polarimeter it is also able to detect photons from pulsars in orbit. By using the six-months in-orbit observation data, significant pulsation from the PSR B0531+21 (Crab pulsar) was obtained. In this work, we present the precise timing analysis of the Crab pulsar, together with a phase-resolved spectroscopic study using a joint-fitting method adapted for wide field of view instruments like POLAR. By using single power law fitting over the pulsed phase, we obtained spectral indices ranging from 1.718 to 2.315, and confirmed the spectral evolution in a reverse S shape which is homogenous with results from other missions over broadband. We will also show, based on the POLAR in-orbit performance and Geant4 Monte-Carlo simulation, the inferred capabilities of POLAR-2, the proposed follow-up mission of POLAR on board the China Space Station (CSS), for pulsars studies.
description: 15 pages, 9 figures, 2 tables, accepted for publication in Journal of High Energy Astrophysics
Electronic lifetimes in ballistic quantum dots electrostatically coupled to metallic environments
Creators: name: Guinea, F.
name: Jalabert, R. A.
name: Sols, F.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We calculate the lifetime of low-energy electronic excitations in a two-dimensional quantum dot near a metallic gate. We find different behaviors depending on the relative values of the dot size, the dot-gate distance and the Thomas-Fermi screening length within the dot. The standard Fermi liquid behavior is obtained when the dot-gate distance is much shorter than the dot size or when it is so large that intrinsic effects dominate. Departures from the Fermi liquid behavior are found in the unscreened dipole case of small dots far away from the gate, for which a Caldeira-Leggett model is applicable. At intermediate distances, a marginal Fermi liquid is obtained if there is sufficient screening within the dot. In these last two non-trivial cases, the level width decays as a power law with the dot-gate distance.
The VANDELS survey: A strong correlation between Ly$α$ equivalent width and stellar metallicity at $\mathbf{3\leq z \leq 5}$
Creators: name: Cullen, F.
name: McLure, R. J.
name: Dunlop, J. S.
name: Carnall, A. C.
name: McLeod, D. J.
name: Shapley, A. E.
name: Amorín, R.
name: Bolzonella, M.
name: Castellano, M.
name: Cimatti, A.
name: Cirasuolo, M.
name: Cucciati, O.
name: Fontana, A.
name: Fontanot, F.
name: Garilli, B.
name: Guaita, L.
name: Jarvis, M. J.
name: Pentericci, L.
name: Pozzetti, L.
name: Talia, M.
name: Zamorani, G.
name: Calabrò, A.
name: Cresci, G.
name: Fynbo, J. P. U.
name: Hathi, N. P.
name: Giavalisco, M.
name: Koekemoer, A.
name: Mannucci, F.
name: Saxena, A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the results of a new study investigating the relationship between observed Ly$α$ equivalent width ($W_λ$(Ly$α$)) and the metallicity of the ionizing stellar population ($Z_{\star}$) for a sample of $768$ star-forming galaxies at $3 \leq z \leq 5$ drawn from the VANDELS survey. Dividing our sample into quartiles of rest-frame $W_λ$(Ly$α$) across the range $-58 \unicode{xC5} \lesssim$ $W_λ$(Ly$α$) $\lesssim 110 \unicode{xC5}$ we determine $Z_{\star}$ from full spectral fitting of composite far-ultraviolet (FUV) spectra and find a clear anti-correlation between $W_λ$(Ly$α$) and $Z_{\star}$. Our results indicate that $Z_{\star}$ decreases by a factor $\gtrsim 3$ between the lowest $W_λ$(Ly$α$) quartile ($\langle$$W_λ$(Ly$α$)$\rangle=-18\unicode{xC5}$) and the highest $W_λ$(Ly$α$) quartile ($\langle$$W_λ$(Ly$α$)$\rangle=24\unicode{xC5}$). Similarly, galaxies typically defined as Lyman Alpha Emitters (LAEs; $W_λ$(Ly$α$) $>20\unicode{xC5}$) are, on average, metal poor with respect to the non-LAE galaxy population ($W_λ$(Ly$α$) $\leq20\unicode{xC5}$) with $Z_{\star}$$_{\rm{non-LAE}}\gtrsim 2 \times$ $Z_{\star}$$_{\rm{LAE}}$. Finally, based on the best-fitting stellar models, we estimate that the increasing strength of the stellar ionizing spectrum towards lower $Z_{\star}$ is responsible for $\simeq 15-25\%$ of the observed variation in $W_λ$(Ly$α$) across our sample, with the remaining contribution ($\simeq 75-85\%$) being due to a decrease in the HI/dust covering fractions in low $Z_{\star}$ galaxies.
description: 10 pages, 6 figures, MNRAS accepted
Dc-Driven Diatomic Frenkel-Kontorova Model
Creators: name: Xu, Aiguo
name: Hong, Jongbae
Publisher: name: arXiv
Year: 2003
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We investigate the resonance steps, spatiotemporal dynamics, and dynamical phase diagrams of the dc-driven diatomic Frenkel-Kontorova model. The complete resonance velocity spectrum is given. The diatomic effects result in each resonant state being characterized by two integer pairs, $(k_1,k_2)$ and $(k_1,k_2^{\prime})$. In the high-velocity region the linear response of the average velocity, $v$, of the chain to the driving force $F$ is often punctuated by subharmonic resonances $(k_1>k_2)$. There are two kinds of nonlinear response regions in the high-velocity region. A new physical interpretation of the mean-field treatment is presented.
description: PDF file
MOESM1 of Developing a clinical decision support for opioid use disorders: a NIDA center for the clinical trials network working group report
Creators: name: Bart, Gavin
name: Saxon, Andrew
name: Fiellin, David
name: McNeely, Jennifer
name: Muench, John
name: Shanahan, Christopher
name: Huntley, Kristen
name: Gore-Langton, Robert
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Molecular Biology
subject: Pharmacology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Developmental Biology
subject: Cancer
subject: Science Policy

description: Additional file 1. Opioid use disorder clinical algorithm.
Achieving Sustainable Development in Poverty-Stricken Mountainous Areas in Rural China: Issues and Countermeasures
Creators: name: Jin, Han
name: Zhang-Yue, Zhou
name: Stoeckl, Natalie
name: Jin, Han
name: Zhang-Yue, Zhou
name: Stoeckl, Natalie
Publisher: name: Unknown
Year: 2006
Subjects: subject: Consumer/Household Economics
subject: Food Security and Poverty
subject: International Development
subject: Regional sustainable development
subject: Poor mountainous areas
subject: Rural poverty of China
subject: Integrated Regional Management
subject: Regional United Entity

description: Despite efforts by the Chinese government to reduce rural poverty in recent decades, the extent of poverty in many mountainous areas of rural China is still high. To survive, rural residents in these areas are often forced to over-exploit the already stretched natural resources; the end result being serious degradation of the natural environment. This lowers productivity and rural incomes, which exacerbates the problem. This paper discusses a variety of factors that contribute to this poverty cycle in China’s mountainous areas and explores countermeasures that may help break the cycle while encouraging sustainable development.
The Interstate Water Trading Regime
Creators: name: Allan, Jacqueline
name: Allan, Jacqueline
Publisher: name: Unknown
Year: 1999
Subjects: Resource /Energy Economics and Policy

description: In November last year, a pilot interstate water trading project was approved by the Murray-Darling Basin Ministerial Council. This project allows private diverters along a region of the River Murray to permanently trade high security water from one State to another – until November 1997 this would have been impossible. Under this project, solutions will be developed to complex interstate water trading issues so that water will be able to move to higher value uses; be applied to soils that are more appropriate to irrigation; and be used more efficiently – irrespective of State borders. This will in turn help the irrigation industry in Australia become more economically and environmentally sustainable.
Quantum $φ$-synchronization in coupled optomechanical system with periodic modulation
Creators: name: Qiao, G. J.
name: Liu, X. Y.
name: Liu, H. D.
name: Sun, C. F.
name: Yi, X. X.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Based on the concepts of quantum synchronization and quantum phase synchronization proposed by A. Mari \textit{et al.} in Phys. Rev. Lett. 111, 103605 (2013), we introduce and characterize the measure of a more generalized quantum synchronization called quantum $φ$-synchronization under which the pairs of variables have the same amplitude and possess the same $φ$ phase shift. Naturally, quantum synchronization and quantum anti-synchronization become special cases of quantum $φ$-synchronization. Their relations and differences are also discussed. To illustrate these theories, we investigate the quantum $φ$-synchronization and quantum phase synchronization phenomena of two coupled optomechanical systems with periodic modulation and show that quantum $φ$-synchronization is more general as a measure of synchronization. We also show the phenomenon of quantum anti-synchronization when $φ=π$.
description: 6 pages, 5 figures, comments are wellcome
Maximal degree variational principles
Creators: name: Gaeta, G.
name: Morando, P.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mathematical Physics (math-ph)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 58A15; 34A26; 37C10; 70G75

description: Let $M$ be smooth $n$-dimensional manifold, fibered over a $k$-dimensional submanifold $B$ as $π:M \to B$, and $\vartheta \in Λ^k (M)$; one can consider the functional on sections $ϕ$ of the bundle $π$ defined by $\int_D ϕ^* (\vartheta)$, with $D$ a domain in $B$. We show that for $k = n-2$ the variational principle based on this functional identifies a unique (up to multiplication by a smooth function) nontrivial vector field in $M$, i.e. a system of ODEs. Conversely, any vector field $X$ on $M$ satisfying $i_X ({\rm d} \vartheta) = 0$ for some $\vartheta \in Λ^{n-2} (M)$ admits such a variational characterization. We consider the general case, and also the particular case $M = P \times R$ where one of the variables (the time) has a distinguished role; in this case our results imply that any Liouville (volume-preserving) vector field on the phase space $P$ admits a variational principle of the kind considered here.
description: Some misprints corrected
Parasthetops nigritus Perkins & Balfour-Browne 1994
Creators: name: Perkins, Philip D.
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Hydraenidae
Parasthetops
Parasthetops nigritus

description: Parasthetops nigritus Perkins & Balfour­Browne, 1994
(distribution map: Fig. 92)
 New collection records: South Africa: Western Cape Province, Du Toits Mts., 15 km E Paarl, elev. 800­ 1000 m, 33° 45' S, 18° 58' E, 1 March 1997, Hess & Heckes (2 NMW); Du Toits Mts., 8 km SE Franschhoek, 33° 55' S, 19° 8' E, 28 February 1997, Hess & Heckes (7 NMW); Du Toits Mts., 9 km SE Franschhoek, 33° 55' S, 19° 8' E, 28 February 1997, Hess & Heckes (2 NMW); E Franschhoek, Du Toit River, elev. 600 m, 33° 43' S, 19° 11' E, 19 March 1988, Malicky (50 NMW); Hex River Mts., 7 km SW Ceres, Breede River, rockpools, elev. 400 m, 33° 23' S, 19° 19' E, 26 February 1997, Hess (28 NMW); Stellenbosch Mts., 10 km SE Stellenbosch, Jonkershoek, 33° 56' S, 18° 51' E, 28 February 1997, Hess & Heckes (5 NMW); Tentskloof River, ex. stones in current, 32° 37' S, 19° 10' E, 13 April 2005 (5 AMG); Thee River, downstream from confluence with tributary, 32° 48' S, 19° 7' E, 15 April 2005 (2 AMG); Thee River, upstream of confluence with tributary, ex. stones in current, riffles and runs, 32° 48' S, 19° 7' E, 15 April 2005 (1 AMG).
description: Published as part of Perkins, Philip D., 2008, Facial affect recognition in individuals at clinical high risk for psychosis, pp. 1-124 in Zootaxa 1864 on page 11, DOI: 10.17615/mqt8-8z21, http://zenodo.org/record/5133132
Chromospheric Synoptic Maps of Polar Crown Filaments
Creators: name: Diercke, Andrea
name: Denker, Carsten
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Polar crown filaments form above the polarity inversion line between the old magnetic flux of the previous cycle and the new magnetic flux of the current cycle. Studying their appearance and their properties can lead to a better understanding of the solar cycle. We use full-disk data of the Chromospheric Telescope (ChroTel) at the Observatorio del Teide, Tenerife, Spain, which were taken in three different chromospheric absorption lines (H-alpha 6563A, CaII-K 3933A, and HeI 10830A), and we create synoptic maps. In addition, the spectroscopic HeI data allow us to compute Doppler velocities and to create synoptic Doppler maps. ChroTel data cover the rising and decaying phase of Solar Cycle 24 on about 1000 days between 2012 and 2018. Based on these data, we automatically extract polar crown filaments with image-processing tools and study their properties. We compare contrast maps of polar crown filaments with those of quiet-Sun filaments. Furthermore, we present a super-synoptic map summarizing the entire ChroTel database. In summary, we provide statistical properties, i.e. number and location of filaments, area, and tilt angle for both the maximum and declining phase of Solar Cycle 24. This demonstrates that ChroTel provides a promising data set to study the solar cycle.
description: 18 pages, 10 figures
Applications of Gas Imaging Micro-Well Detectors to an Advanced Compton Telescope
Creators: name: Bloser, P. F.
name: Hunter, S. D.
name: Ryan, J. M.
name: McConnell, M. L.
name: Miller, R. S.
name: Jackson, T. N.
name: Bai, B.
name: Jung, S.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a concept for an Advanced Compton Telescope (ACT) based on the use of pixelized gas micro-well detectors to form a three-dimensional electron track imager. A micro-well detector consists of an array of individual micro-patterned proportional counters opposite a planar drift electrode. When combined with thin film transistor array readouts, large gas volumes may be imaged with very good spatial and energy resolution at reasonable cost. The third dimension is determined from the drift time of the ionization electrons. The primary advantage of this approach is the excellent tracking of the Compton recoil electron that is possible in a gas volume. Such good electron tracking allows us to reduce the point spread function of a single incident photon dramatically, greatly improving the imaging capability and sensitivity. The polarization sensitivity, which relies on events with large Compton scattering angles, is particularly enhanced. We describe a possible ACT implementation of this technique, in which the gas tracking volume is surrounded by a CsI calorimeter, and present our plans to build and test a small prototype over the next three years.
description: 7 pages, 6 figures, to appear in New Astronomy Reviews (proceedings of the Seeon Conference "Astronomy with Radioactivities IV and Filling the Sensitivity Gap in MeV Astronomy")
The mean tilt of sunspot bipolar regions: theory, simulations and comparison with observations
Creators: name: Kleeorin, N.
name: Safiullin, N.
name: Kuzanyan, K.
name: Rogachevskii, I.
name: Tlatov, A.
name: Porshnev, S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: A theory of the mean tilt of sunspot bipolar regions (the angle between a line connecting the leading and following sunspots and the solar equator) is developed. A mechanism of formation of the mean tilt is related to the effect of Coriolis force on meso-scale motions of super-granular convection and large-scale meridional circulation. The balance between the Coriolis force and the Lorentz force (the magnetic tension) determines an additional contribution caused by the large-scale magnetic field to the mean tilt of the sunspot bipolar regions at low latitudes. The latitudinal dependence of the solar differential rotation affects the mean tilt which can explain deviations from the Joy's law for the sunspot bipolar regions at high latitudes. The obtained theoretical results and performed numerical simulations based on the nonlinear mean-field dynamo theory which takes into account conservation of the total magnetic helicity and the budget equation for the evolution of the Wolf number density, are in agreement with observational data of the mean tilt of sunspot bipolar regions over individual solar cycles 15 - 24.
description: 12 pages, 4 figures, mn2e.cls , revised, final version
The XMM-Newton and BeppoSAX view of the Ultra Luminous Infrared Galaxy MKN 231
Creators: name: Braito, V.
name: Della Ceca, R.
name: Piconcelli, E.
name: Severgnini, P.
name: Bassani, L.
name: Cappi, M.
name: Franceschini, A.
name: Iwasawa, K.
name: Malaguti, G.
name: Marziani, P.
name: Palumbo, G. G. C.
name: Persic, M.
name: Risaliti, G.
name: Salvati, M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We discuss XMM-Newton and BeppoSAX observations of MKN 231, the lowest-redshift Broad Absorption Line (BAL) QSO known so far and one of the best-studied Ultra Luminous Infrared Galaxies. By combining the XMM-Newton spectral resolution and the high-energy bandpass of BeppoSAX we have been able to study in more detail than previously possible its 0.2--50 keV spectral properties. The BeppoSAX PDS data unveiled, for the first time, a highly absorbed ($N_H\sim 2\times 10^{24}$cm$^{-2}$) power-law component. We find that: a) below 10 keV we are seeing only reprocessed radiation through reflection and/or scattering; b) the intrinsic 2-10 keV luminosity of MKN 231 is $1^{+1.0}_{-0.5} \times 10^{44}$ ergs s$^{-1}$, i.e. more than an order of magnitude greater than previous measurements; c) the starburst activity significantly contributes to the soft ($E<2$ keV) X-ray emission.
description: 11 pages,3 figures, Latex manuscript, Accepted for publication in Astronomy and Astrophysics
MOESM1 of Bacteriocin production by mucosal bacteria in current and previous colorectal neoplasia
Creators: name: Kohoutova, Darina
name: Forstlova, Miroslava
name: Moravkova, Paula
name: Jiri Cyrany
name: Bosak, Juraj
name: Smajs, David
name: Rejchrt, Stanislav
name: Bures, Jan
Publisher: name: figshare
Year: 2020
Subjects: subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
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: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. Primers used for the detection of colicin genes
How to create a research project by mining the datasets of open science sharing?
Creators: name: Liu Huan
Publisher: name: Zenodo
Year: 2025

description: Article: How to create a research project by mining the datasets of open science sharing?

Author: Liu Huan (1983-), Chief Editor, Master of Science (First Class Honours, 2009), The University of Auckland.

Copyrights Registered by Block Chain, and the Block Chain ID (6921cb6d84b3a74c435d45d7575bad612f3a67262c5233bbc61e1af6bf5c5439). Register time: 2025-02-03 16:49

All copyrights reserved. Latest revised on 2025-2-3

In recent years, due to the construction and development of open research data sharing platform, such as Zenodo and Science Data Bank, the traditional review papers have not meet the requirement of the era development any more, especially under the background of the increasingly intensive competition and more strictly regulatory environment. The traditional review papers are only suitable for textbooks, which must be changed to Dissertation papers to meet the requirements of international journal publishing.

Dissertation obtains the empirical data by searching and collecting data (mainly by quoting the published data of others and obtaining the use license) in an organized way. Then re-editing and re-calculating data creates new original research papers as dissertation, which are suitable for the first year postgraduate study (Research-based) or for the Master dissertation (Coursework-based). The main requirements are as follows: (See article)

版权申明:禁止复制、转载!

近年来由于开放型研究数据共享平台的建设和兴起,比如Zenodo、Science Data Bank之类研究数据共享平台的发展,传统的综述类论文已经显得不再符合时代发展,尤其是在竞争与监管环境日益激烈和严格的背景下,传统的综述类论文仅仅适合教科书,必须变更为Dissertation论文才能符合国际期刊的发表要求。

Dissertation论文是通过有组织地收集资料的方式来获取实证性数据(主要通过引用他人已经发表的论文数据,并且取得相关数据使用许可),自己重新编辑、计算,创作出新的原创型实证性论文。可以适用于研究生一年级阶段中(研究类)科研基础性训练或是硕士论文(授课类)。要求如下: (见文章)

修改于2025-2-3

Article Download
Parasthetops curidius Perkins & Balfour-Browne 1994
Creators: name: Perkins, Philip D.
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Hydraenidae
Parasthetops
Parasthetops curidius

description: Parasthetops curidius Perkins & Balfour­Browne, 1994
(distribution map: Fig. 99)
 New collection record: South Africa: Eastern Cape Province, 10 mi. N. Alice, 32° 37' S, 26° 56' E, 17 March 1968, P. J. Spangler (2 USNM).
description: Published as part of Perkins, Philip D., 2008, Facial affect recognition in individuals at clinical high risk for psychosis, pp. 1-124 in Zootaxa 1864 on page 11, DOI: 10.17615/mqt8-8z21, http://zenodo.org/record/5133132
Parasthetops spinipes Perkins & Balfour-Browne 1994
Creators: name: Perkins, Philip D.
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Hydraenidae
Parasthetops
Parasthetops spinipes

description: Parasthetops spinipes Perkins & Balfour­Browne, 1994
(distribution map: Fig. 92)
 New collection records: South Africa: Eastern Cape Province, 14 km W. Rhodes, 30° 48' S, 27° 55' E, 20 February 1979, J. T. Polhemus (CL 960) (1 AMG); near Wildebees River, Small muddy pool, fringed with sedges, at side of road, marginal vegetation out of current, ECR 115, 31° 12' S, 28° 5' E, 26 March 1993, (2 AMG); Seep near Ben Macdhui, bedrock and small stones, some trailing algae and small plants, elev. 2500 m, 30° 59' S, 28° 15' E, 1 April 1993, (ECR 177) (1 AMG); KwaZulu­Natal Province, Umkomaas River, top of Sani Pass, site 1, ex. stones in current, elev. 2865 m, 29° 35' S, 29° 17' E, 18 December 1996, F. de Moor & C. Dickens (Umk 133 A) (4 AMG).
description: Published as part of Perkins, Philip D., 2008, Facial affect recognition in individuals at clinical high risk for psychosis, pp. 1-124 in Zootaxa 1864 on page 11, DOI: 10.17615/mqt8-8z21, http://zenodo.org/record/5133132
Independent Control of Multiple Channels in Metasurface Devices
Creators: name: Wang, Xuchen
name: Díaz-Rubio, Ana
name: Tretyakov, Sergei A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: In analogy with electromagnetic networks which connect multiple input-output ports, metasurfaces can be considered as multi-port devices capable of providing different functionalities for waves of different polarizations illuminating the surface from different directions. The main challenge in the design of such multichannel metasurfaces is to ensure independent and full control of the electromagnetic response for each channel ensuring the fulilment of the boundary condition at the metasurface. In this work, we demonstrate that by properly engineering the evanescent fields excited at each port (that is, for all possible illumination directions), it is possible to independently control the reflection or transmission for all different illuminations. We develop a fully analytical method to analyze and synthesize general space-modulated impedance metasurfaces, engineering strong spatial dispersion. This method, combined with mathematical optimization, allows us to find a surface impedance profile that simultaneously ensures the desired electromagnetic responses at each port. We validate the technique via the design of phase-controlled multichannel retroreflectors. In addition, we demonstrate that the method is rather powerful in the design of other functional metasurfaces such as multifunctional reflectors and multichannel perfect absorbers.
description: 10 pages
Stochastic dynamics of adhesion clusters under shared constant force and with rebinding
Creators: name: Erdmann, T.
name: Schwarz, U. S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Single receptor-ligand bonds have finite lifetimes, so that biological systems can dynamically react to changes in their environment. In cell adhesion, adhesion bonds usually act cooperatively in adhesion clusters. Outside the cellular context, adhesion clusters can be probed quantitatively by attaching receptors and ligands to opposing surfaces. Here we present a detailed theoretical analysis of the stochastic dynamics of a cluster of parallel bonds under shared constant loading and with rebinding. Analytical solutions for the appropriate one-step master equation are presented for special cases, while the general case is treated with exact stochastic simulations. If the completely dissociated state is modeled as an absorbing boundary, mean cluster lifetime is finite and can be calculated exactly. We also present a detailed analysis of fluctuation effects and discuss various approximations to the full stochastic description.
description: Revtex, 29 pages, 23 postscript figures included (some with reduced image quality)
TRMT2B is responsible for both tRNA and rRNA m5U-methylation in human mitochondria
Creators: name: Powell, Christopher A.
name: Minczuk, Michal
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Hematology
subject: 60506 Virology
subject: Computational Biology

description: RNA species play host to a plethora of post-transcriptional modifications which together make up the epitranscriptome. 5-methyluridine (m5U) is one of the most common modifications made to cellular RNA, where it is found almost ubiquitously in bacterial and eukaryotic cytosolic tRNAs at position 54. Here, we demonstrate that m5U54 in human mitochondrial tRNAs is catalysed by the nuclear-encoded enzyme TRMT2B, and that its repertoire of substrates is expanded to ribosomal RNAs, catalysing m5U429 in 12S rRNA. We show that TRMT2B is not essential for viability in human cells and that knocking-out the gene shows no obvious phenotype with regards to RNA stability, mitochondrial translation, or cellular growth.
Beef Feedlot Supply Response in Australia
Creators: name: Griffith, Garry R.
name: Coddington, Anna
name: Murdoch, Scott
name: Griffith, Garry R.
name: Coddington, Anna
name: Murdoch, Scott
Publisher: name: Unknown
Year: 2004
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Demand and Price Analysis
subject: Farm Management
subject: Livestock Production/Industries
subject: Production Economics
subject: Productivity Analysis
subject: Beef
subject: feedlot
subject: supply response
subject: Australia
subject: demand and supply elasticities
subject: agricultural technologies
subject: equilibrium displacement model
subject: feed

description: Reliable estimates of demand and supply elasticities are required for industry-wide evaluations of new agricultural technologies, new primary product promotion campaigns or new policy initiatives impacting on agricultural industries. In developing an equilibrium displacement model of the Australian beef industry, recent supply elasticities for feedlot beef in Australia were not available. The issue of consistency of throughput of feedlot beef and utilisation of feedlot capacity is also an important industry concern. Feedlot survey data were used to estimate supply response functions for feedlot beef. The results indicated that price response was much more inelastic than shown in previous work, reflecting perhaps the industrialisation of the industry in recent years and the significant level of foreign investment. The price of fed cattle plays the largest role in influencing decisions to place cattle on feed. The price of feed is also a major input affecting utilisation of feedlot capacity, however the price of feeder steers plays a lesser role in feedlot decision making than previously thought.
Inward Bound: The incredible journey of massive black holes as they pair and merge; I. The effect of mass ratio in flattened rotating galactic nuclei
Creators: name: Khan, Fazeel Mahmood
name: Mirza, Muhammad Awais
name: Holley-Bockelmann, Kelly
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Understanding how supermassive black holes (SMBHs) pair and merge helps to inform predictions of off-center, dual, and binary AGN, and provides key insights into how SMBHs grow and co-evolve with their galaxy hosts. As the loudest known gravitational wave source, binary SMBH mergers also hold centerstage for the Laser Interferometer Space Antenna (LISA), a joint ESA/NASA gravitational wave observatory set to launch in 2034. Here, we continue our work to characterize SMBH binary formation and evolution through increasingly more realistic high resolution direct $N$-body simulations, focusing on the effect of SMBH mass ratio, orientation, and eccentricity within a rotating and flattened stellar host. During the dynamical friction phase, we found a prolonged orbital decay for retrograde SMBHs and swift pairing timescales for prograde SMBHs compared to their counterparts in non-rotating models, an effect that becomes more pronounced for smaller mass ratios $M_{\rm sec}/M_{\rm prim} = q$. During this pairing phase, the eccentricity dramatically increases for retrograde configurations, but as the binary forms, the orbital plane flips so that it is almost perfectly prograde, which stifles the rapid eccentricity growth. In prograde configurations, SMBH binaries form and remain at comparatively low eccentricities. As in our prior work, we note that the center of mass of a prograde SMBH binary itself settles into an orbit about the center of the galaxy. Since even the initially retrograde binaries flip their orbital plane, we expect few binaries in rotating systems to reside at rest in the dynamic center of the host galaxy, though this effect is smaller as $q$ decreases.
description: Accepted for publication in MNRAS
Thermodynamic Properties and Pressure Effect on the Superconductivity in CaAlSi and SrAlSi
Creators: name: Lorenz, B.
name: Cmaidalka, J.
name: Meng, R. L.
name: Chu, C. W.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Superconductivity in the C32 compounds CaAlSi and SrAlSi is investigated by heat capacity (Cp) measurements as well as high-pressure ac-susceptibility experiments. The heat capacity in the superconducting state is well explained by the BCS theory in the weak-coupling limit. The jump of Cp at the superconducting transition (compared to the normal state electronic heat capacity) is 1.62 and 1.21 for CaAlSi and SrAlSi, respectively, and agrees well with the BCS value of 1.43. The magnitudes of the superconducting gaps are estimated as 2.7 meV (CaAlSi) and 1.4 meV (SrAlSi). The pressure effect on the superconducting transition temperature, dlnTc/dp, is positive in CaAlSi (+0.026 GPa-1) but negative in SrAlSi (-0.024 GPa-1). The opposite sign of the pressure coefficients of Tc indicates distinct differences in the electronic structure and the density of states at the Fermi energy of the two compounds in agreement with recent band structure calculations.
description: Revised manuscript, Fig. 1 replaced, Phys. Rev. B in press