cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Enhancing HPC Security with a User-Based Firewall
Creators: name: Prout, Andrew
name: Arcand, William
name: Bestor, David
name: Bergeron, Bill
name: Byun, Chansup
name: Gadepally, Vijay
name: Hubbell, Matthew
name: Houle, Michael
name: Jones, Michael
name: Michaleas, Peter
name: Milechin, Lauren
name: Mullen, Julie
name: Rosa, Antonio
name: Samsi, Siddharth
name: Reuther, Albert
name: Kepner, Jeremy
Publisher: name: arXiv
Year: 2016
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: HPC systems traditionally allow their users unrestricted use of their internal network. While this network is normally controlled enough to guarantee privacy without the need for encryption, it does not provide a method to authenticate peer connections. Protocols built upon this internal network must provide their own authentication. Many methods have been employed to perform this authentication. However, support for all of these methods requires the HPC application developer to include support and the user to configure and enable these services. The user-based firewall capability we have prototyped enables a set of rules governing connections across the HPC internal network to be put into place using Linux netfilter. By using an operating system-level capability, the system is not reliant on any developer or user actions to enable security. The rules we have chosen and implemented are crafted to not impact the vast majority of users and be completely invisible to them.
title: Textile Waste Management in Kenya: An Investigation into the Current Practices and Opportunities for Improvement
Creators: name: Callar Odero, Georgine
Publisher: name: TU Wien
Year: 2023
Subjects: subject: production
subject: consumption
subject: textile industry
subject: textile waste
subject: waste management

description: Production and consumption have contributed highly to the global economy and damaged the planet's ecosystem and resources. The textile industry, for instance,contributes to economic growth at the individual and international levels through revenues gained through employment creation. Over three hundred million individualsrely on this sector for their incomes, and in return, governments benefit from the taxes throughout the textile value chain. Despite being an important industry sector for developing and developed nations, the textile industry has contributed to environmental pollution. Worldwide clothing consumption has increased because of the accessibility of quickly evolving fashions and lower apparel prices. The change in fashion trends hasled to a rise in the consumption of used clothing in developed nations. Consequently,developing nations witness a surge in second-hand garments that often end up in landfills or water bodies due to in adequate waste management infrastructure.This thesis analysed the state of textile waste from second-hand clothes imported into the Republic of Kenya based on desk-based research and evaluation of the country’spolicies and regulations on textile waste management. Kenya’s economy benefits from the trade of second-hand clothes. However, due to a lack of waste regulations, the environment suffers the repercussions of poorly managed textile waste. Textile waste has not been given much focus in the country, and consumers lack awareness of the impact of improper disposal of clothes in open dumps. Although regional legislations are developed, and brands promote sustainability, they rarely are tailored to the specific needs of developing countries. This thesis recommends that international brands provide market access for waste textile recyclers as an essential means to aid these countries.Opportunities for recycling and reusing clothes exist, but proper measures for collecting textile waste must be implemented through legislation. As a low-middle-income country, this study recommends that Kenya’s primary focus on textile waste management should be on the proper collection methods to facilitate the recycling of waste from textiles.
The Frequency Of Binary Star Interlopers Amongst Transitional Discs
Creators: name: Ruíz-Rodríguez, D.
name: Ireland, M.
name: Cieza, L.
name: Kraus, A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Using Non-Redundant Mask interferometry (NRM), we searched for binary companions to objects previously classified as Transitional Disks (TD). These objects are thought to be an evolutionary stage between an optically thick disk and optically thin disk. We investigate the presence of a stellar companion as a possible mechanism of material depletion in the inner region of these disks, which would rule out an ongoing planetary formation process in distances comparable to the binary separation. For our detection limits, we implement a new method of completeness correction using a combination of randomly sampled binary orbits and Bayesian inference. The selected sample of 24 TDs belong to the nearby and young star forming regions: Ophiuchus ($\sim$ 130 pc), Taurus-Auriga ($\sim$ 140 pc) and IC348 ( $\sim$ 220 pc). These regions are suitable to resolve faint stellar companions with moderate to high confidence levels at distances as low as 2 au from the central star. With a total of 31 objects, including 11 known TDs and circumbinary disks from the literature, we have found that a fraction of 0.38 $\pm$ 0.09 of the SEDs of these objects are likely due to the tidal interaction between a close binary and its disk, while the remaining SEDs are likely the result of other internal processes such as photoevaporation, grain growth, planet disk interactions. In addition, we detected four companions orbiting outside the area of the truncation radii and we propose that the IR excesses of these systems are due to a disk orbiting a secondary companion
description: 18 pages, 6 Figures, 11 Tables
Coupled spin-1/2 ladders as microscopic models for non-Abelian chiral spin liquids
Creators: name: Huang, Po-Hao
name: Chen, Jyong-Hao
name: Feiguin, Adrain E.
name: Chamon, Claudio
name: Mudry, Christopher
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We construct a two-dimensional (2D) lattice model that is argued to realize a gapped chiral spin liquid with (Ising) non-Abelian topological order. The building blocks are spin-1/2 two-leg ladders with $SU(2)$-symmetric spin-spin interactions. The two-leg ladders are then arranged on rows and coupled through SU(2)-symmetric interactions between consecutive ladders. The intra-ladder interactions are tuned so as to realize the c = 1/2 Ising conformal field theory, a fact that we establish numerically via Density Matrix Renormalization Group (DMRG) studies. Time-reversal breaking inter-ladder interactions are tuned so as to open a bulk gap in the 2D lattice system. This 2D system supports gapless chiral edge modes with Ising non-Abelian excitations but no charge excitations, in contrast to the Pfaffian non-Abelian fractional quantum Hall state.
description: 6 pages, 4 figures; 13 page supp. mat
On the growth constant for square-lattice self-avoiding walks
Creators: name: Jacobsen, Jesper Lykke
name: Scullard, Christian R.
name: Guttmann, Anthony J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The growth constant for two-dimensional self-avoiding walks on the honeycomb lattice was conjectured by Nienhuis in 1982, and since that time the corresponding results for the square and triangular lattices have been sought. For the square lattice, a possible conjecture was advanced by one of us (AJG) more than 20 years ago, based on the six significant digit estimate available at the time. This estimate has improved by a further six digits over the intervening decades, and the conjectured value continued to agree with the increasingly precise estimates. We discuss the three most successful methods for estimating the growth constant, including the most recently developed Topological Transfer-Matrix method, due to another of us (JLJ). We show this to be the most computationally efficient of the three methods, and by parallelising the algorithm we have estimated the growth constant significantly more precisely, incidentally ruling out the conjecture, which fails in the 12th digit. Our new estimate of the growth constant is $$μ(\mathrm{square}) = 2.63815853032790\, (3).$$
description: 24 pages, 3 figures, 4 tables
Linear Network Coding over Rings, Part II: Vector Codes and Non-Commutative Alphabets
Creators: name: Connelly, Joseph
name: Zeger, Kenneth
Publisher: name: arXiv
Year: 2016
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: We prove the following results regarding the linear solvability of networks over various alphabets. For any network, the following are equivalent: (i) vector linear solvability over some finite field, (ii) scalar linear solvability over some ring, (iii) linear solvability over some module. Analogously, the following are equivalent: (a) scalar linear solvability over some finite field, (b) scalar linear solvability over some commutative ring, (c) linear solvability over some module whose ring is commutative. Whenever any network is linearly solvable over a module, a smallest such module arises in a vector linear solution for that network over a field. If a network is linearly solvable over some non-commutative ring but not over any commutative ring, then such a non-commutative ring must have size at least $16$, and for some networks, this bound is achieved. An infinite family of networks is demonstrated, each of which is scalar linearly solvable over some non-commutative ring but not over any commutative ring. Whenever $p$ is prime and $2 \le k \le 6$, if a network is scalar linearly solvable over some ring of size $p^k$, then it is also $k$-dimensional vector linearly solvable over the field $GF(p)$, but the converse does not necessarily hold. This result is extended to all $k\ge 2$ when the ring is commutative.
Zions Liederlust : Auserwählte drei- und vierstimmige Chöre für Knaben-, Mädchen-, Frauen- oder Männerstimmen ...
Creators: name: [s.n.]
Publisher: name: Buchhandlung u. Verl. des Traktathauses; Christliche Vereinsbuchhandlung
Year: 1890

description: Hg. von Ernst Gebhardt
COSMOS2020: Exploring the dawn of quenching for massive galaxies at 3 < z < 5 with a new colour selection method
Creators: name: Gould, Katriona M. L.
name: Brammer, Gabriel
name: Valentino, Francesco
name: Whitaker, Katherine E.
name: Weaver, John R.
name: Lagos, Claudia del P.
name: Rizzo, Francesca
name: Franco, Maximilien
name: Hseih, Bau-Ching
name: Ilbert, Olivier
name: Jin, Shuowen
name: Magdis, Georgios
name: McCracken, Henry J.
name: Mobasher, Bahram
name: Shuntov, Marko
name: Steinhardt, Charles L.
name: Strait, Victoria
name: Toft, Sune
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We select and characterise a sample of massive (log(M$_{*}/$M$_{\odot})>10.6$) quiescent galaxies (QGs) at $33$. We compute median rest-frame SEDs for our sample and find the median quiescent galaxy at $3
description: 19 pages, 10 figures + appendix. Accepted for publication in AJ. Both the GMM model and code to calculate quiescent probabilities from rest frame flux densities are made available online at https://github.com/kmlgould/GMM-quiescent
The Instanton-Dyon Liquid Model V: Twisted Light Quarks
Creators: name: Liu, Yizhuang
name: Shuryak, Edward
name: Zahed, Ismail
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss an extension of the instanton-dyon liquid model that includes twisted light quarks in the fundamental representation with explicit $Z_{N_c}$ symmetry for the case with equal number of colors $N_c$ and flavors $N_f$. We map the model on a 3-dimensional quantum effective theory, and analyze it in the mean-field approximation. The effective potential and the vacuum chiral condensates are made explicit for $N_f=N_c=2, 3$. The low temperature phase is center symmetric but breaks spontaneously flavor symmetry with $N_f-1$ massless pions. The high temperature phase breaks center symmetry but supports finite and unequal quark condensates.
description: 12 pages, 2 figures
Dynamics of Photo-excited Hot Carriers in Hydrogenated Amorphous Silicon Imaged by 4D Electron Microscopy
Creators: name: Liao, Bolin
name: Najafi, Ebrahim
name: Li, Heng
name: Minnich, Austin J.
name: Zewail, Ahmed H.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The dynamics of charge carriers in amorphous semiconductors fundamentally differ from those in crystalline semiconductors due to the lack of long-range order and the high defect density. Despite intensive technology-driven research interests and the existence of well-established experimental techniques, such as photoconductivity time-of-flight and ultrafast optical measurements, many aspects of the dynamics of photo-excited charge carriers in amorphous semiconductors remain poorly understood. Here we demonstrate direct imaging of carrier dynamics in space and time after photo-excitation in hydrogenated amorphous silicon (a-Si:H) by scanning ultrafast electron microscopy (SUEM). We observe an unexpected regime of fast diffusion immediately after photoexcitation along with spontaneous electron-hole separation and charge trapping induced by the atomic disorder. Our findings demonstrate the rich dynamics of hot carrier transport in amorphous semiconductors that can be revealed by direct imaging based on SUEM.
MAFFT alignment of 495 shared BUSCO single copy proteins
Creators: name: Murik, Omer
Publisher: name: figshare
Year: 2023
Subjects: Genomics and transcriptomics
Microbial ecology

description: For whole genome phylogenetic analysis, we first used BUSCO (Seppey et al., 2019) (v 5.1.2) to filter complete single-copy conserved genes for each of 16 chlorella or other chlorophyte species from the corresponding genome sequences. Amino acid sequences of 495 single-copy BUSCO proteins shared by all 16 species were concatenated and aligned with MAFFT online tool (https://mafft.cbrc.jp/alignment/server).
Conformal B-L and Pseudo-Goldstone Dark Matter
Creators: name: Mohapatra, Rabindra N.
name: Okada, Nobuchika
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show that a conformal extension of the standard model with local B-L symmetry and two complex scalars breaking B-L can provide a unified description of neutrino mass, origin of matter and dark matter. There are two hierarchical B-L breaking vacuum expectation value (VEV) scales in the model, the higher denoted by $v_B$ and the lower by $v_A$. The higher breaking scale is dynamically implemented via the Coleman-Weinberg mechanism and plays a key role in the model since it induces electroweak symmetry breaking as well as the lower B-L breaking scale. It is also responsible for neutrino masses via the seesaw mechanism and origin of matter. The imaginary part of the complex scalar with lower B-L breaking VEV plays the role of a pseudo-Goldstone dark matter (DM). The DM particle is unstable with its lifetime naturally longer than $10^{28}$ seconds. We show that its relic density arises from the freeze-in mechanism for a wide parameter domain. Due to the pseudo-Goldstone boson nature of the DM particle, the direct detection cross section is highly suppressed. The model also predicts the dark matter to be heavier than 100 TeV and it decays to two high energy neutrinos which can be observable at the IceCube, providing a test of this model.
description: 16 pages and seven figures; references updated
Improved key rate bounds for practical decoy-state quantum key distribution systems
Creators: name: Zhang, Zhen
name: Zhao, Qi
name: Razavi, Mohsen
name: Ma, Xiongfeng
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The decoy-state scheme is the most widely implemented quantum key distribution protocol in practice. In order to account for the finite-size key effects on the achievable secret key generation rate, a rigorous statistical fluctuation analysis is required. Originally, a heuristic Gaussian-approximation technique was used for this purpose, which, despite of its analytical convenience, was not sufficiently rigorous. The fluctuation analysis has recently been made rigorous by using the Chernoff bound. There is a considerable gap, however, between the key rate bounds obtained from these new techniques and that obtained from the Gaussian assumption. Here, we develop a tighter bound for the decoy-state method, which yields a smaller failure probability. This improvement results in a higher key rate and increases the maximum distance over which secure key exchange is possible. By optimizing the system parameters, our simulation results show that our new method almost closes the gap between the two previously proposed techniques and achieves a similar performance to that of conventional Gaussian approximations.
description: 34 pages, 5 figures
Discovery of peculiar periodic spectral modulations in a small fraction of solar type stars
Creators: name: Borra, E. F.
name: Trottier, E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: A Fourier transform analysis of 2.5 million spectra in the Sloan Digital Sky Survey was carried out to detect periodic spectral modulations. Signals having the same period were found in only 234 stars overwhelmingly in the F2 to K1 spectral range. The signals cannot be caused by instrumental or data analysis effects because they are present in only a very small fraction of stars within a narrow spectral range and because signal to noise ratio considerations predict that the signal should mostly be detected in the brightest objects, while this is not the case. We consider several possibilities, such as rotational transitions in molecules, rapid pulsations, Fourier transform of spectral lines and signals generated by Extraterrestrial Intelligence (ETI). They cannot be generated by molecules or rapid pulsations. It is highly unlikely that they come from the Fourier transform of spectral lines because too many strong lines located at nearly periodic frequencies are needed. Finally we consider the possibility, predicted in a previous published paper, that the signals are caused by light pulses generated by Extraterrestrial Intelligence to makes us aware of their existence. We find that the detected signals have exactly the shape of an ETI signal predicted in the previous publication and are therefore in agreement with this hypothesis. The fact that they are only found in a very small fraction of stars within a narrow spectral range centered near the spectral type of the sun is also in agreement with the ETI hypothesis. However, at this stage, this hypothesis needs to be confirmed with further work. Although unlikely, there is also a possibility that the signals are due to highly peculiar chemical compositions in a small fraction of galactic halo stars.
description: Accepted for publication by PASP: Signals probably from Extraterrestrial Intelligence. Analysis of 2.5 million SDSS spectra found signals predicted in a previous publication in only 234 stars overwhelmingly in the F2 to K1 spectral range
Josephson diode based on conventional superconductors and a chiral quantum dot
Creators: name: Cheng, Qiang
name: Sun, Qing-Feng
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We propose theoretically a Josephson diode consisting of the conventional superconductors with the plain s-wave pairing and a chiral quantum dot. When an external magnetic field is exerted on the quantum dot, the critical current of the Josephson structure is different for the opposite directions of current flow. The strong nonreciprocity can be obtained in a large area of the parameter space. The inversion and the on/off state of the nonreciprocity can be conveniently regulated by adjusting the direction of the external field. The dependences of the nonreciprocal behaviors on the the hopping amplitude, the magnitude of the magnetic field and the energy level of the quantum dot are investigated in details using the Keldysh nonequilibrium Green's function formalism under the self-consistent procedure. The symmetric and the antisymmetric properties of the nonreciprocity are analyzed from symmetries satisfied by the superconductors. The proposed diode effect also applies to other chiral conductors as interlayer. Its formation has no restriction on the type of the current-phase difference relations. The generality and flexibility of our proposed diode effect provides more possibilities for the design of the dissipationless diode devices.
description: 4figures
Electroweak precision test of axion-like particles
Creators: name: Aiko, Masashi
name: Endo, Motoi
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the contributions of an axion-like particle to the electroweak precision observables. The particle is assumed to couple with the standard model electroweak gauge bosons. We provide the formulae of the contributions valid for any mass of the axion-like particle. It is found that the effects arise not only via the oblique $S$ and $U$ parameters but also via radiative corrections to the gauge couplings. Besides, the decay of $Z\to aγ$ affects the total width of the $Z$ boson. All of those contributions are considered simultaneously in the global fit analysis of the electroweak precision observables. Also, we discuss the recent CDF result of the $W$-boson mass measurement. Since the model is tightly constrained by flavor and collider constraints, it is found that the discrepancy from the standard model prediction is solved only when the axion-like particle is heavier than 500 GeV and its coupling to di-photon is suppressed.
description: 32 pages, 8 figures, version accepted by JHEP
Dipoena gui Zhu 1998
Creators: name: Gao, Cai-Xia
name: Li, Shu-Qiang
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Theridiidae
Dipoena
Dipoena gui

description: Dipoena gui Zhu, 1998 Dipoena gui Zhu, 1998: 228, figs 148A–E; Song et al., 1999: 110, figs 54A–B, I–J. Material examined. China, Yunnan, 2♂, Xishuangbanna, Menglun Nature Reserve, secondary tropical montane evergreen broad-leaved forest (21º54.767'N, 101º11.431'E), 6 August 2007, Guo Zheng leg.; 1♂, 1♀, Menglun, rubber plantation (about 20 years) (21º54.498'N, 101º16.326'E), 17 July 2007, Guo Zheng leg. Distribution. China (Hainan, Yunnan).
description: Published as part of Gao, Cai-Xia & Li, Shu-Qiang, 2014, Comb-footed spiders (Araneae: Theridiidae) in the tropical rainforest of Xishuangbanna, Southwest China, pp. 1-135 in Zoological Systematics 39 (1) on page 44, DOI: 10.11865/zs20140101, http://zenodo.org/record/7475365
Out of equilibrium density dynamics of a quenched fermionic system
Creators: name: Porta, S.
name: Gambetta, F. M.
name: Cavaliere, F.
name: Ziani, N. Traverso
name: Sassetti, M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Using a Luttinger liquid theory we investigate the time evolution of the particle density of a one-dimensional fermionic system with open boundaries and subject to a finite duration quench of the inter-particle interaction. We provide analytical and asymptotic solutions to the unitary time evolution of the system, showing that both switching on and switching off the quench ramp create light-cone perturbations in the density. The post-quench dynamics is strongly affected by the interference between these two perturbations. In particular, we find that the discrepancy between the time-dependent density and the one obtained by a generalized Gibbs ensemble picture vanishes with an oscillatory behavior as a function of the quench duration, with local minima corresponding to a perfect overlap of the two light-cone perturbations. For adiabatic quenches, we also obtain a similar behavior in the approach of the generalized Gibbs ensemble density towards the one associated with the ground state of the final Hamiltonian.
description: 11 pages, 7 figures
The impact of carbon on microbial community dynamics in Irish grasslands
Creators: name: Fox, Aaron
Publisher: name: University of Limerick
Year: 2023
Subjects: classificationCode: 31
subject: Biological sciences
subject: FOS: Biological sciences

description: Grasslands are recognised as a major European sink for the long term sequestration of carbon (C), helping to offset greenhouse gas emissions. Such a scenario is particularly attractive in an Irish context as grasslands comprise 90 % of the land devoted to agricultural production. Thus a greater understanding is required of how C influences both the composition and functionality of soil microbial community, as this represents the most important biological component of these systems. The results of this thesis demonstrated that both the physical protection of carbon (soil aggregates) as well as carbon addition through agricultural management (i.e, slurry addition) impacts on the soil microbiome in Irish agricultural grasslands. Specifically it was demonstrated that (i) aggregate size was a significant determinant of both bacterial and fungal community composition down the soil profile of Irish grasslands. (ii) The functionality of the soil microbiome responds in a staged manner to slurry derived carbon at the field scale while the composition of the microbiome is more influenced by seasonal succession. (iii) Over a 1 year experimental period, both aggregate size and slurry applied C significantly influenced potential extracellular enzymatic rates with this activity being temporally dynamic. A thorough comprehension of the spatial and temporal influence of both soil aggregates and agricultural fertilisation regimes on the constitution and activity of the soil microbiome is critical if we are to elucidate the microbially mediated mechanisms of terrestrial carbon cycling in Irish grasslands.
Decision and function problems based on boson sampling
Creators: name: Nikolopoulos, Georgios M.
name: Brougham, Thomas
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: Cryptography and Security (cs.CR)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Boson sampling is a mathematical problem that is strongly believed to be intractable for classical computers, whereas passive linear interferometers can produce samples efficiently. So far, the problem remains a computational curiosity, and the possible usefulness of boson-sampling devices is mainly limited to the proof of quantum supremacy. The purpose of this work is to investigate whether boson sampling can be used as a resource of decision and function problems that are computationally hard, and may thus have cryptographic applications. After the definition of a rather general theoretical framework for the design of such problems, we discuss their solution by means of a brute-force numerical approach, as well as by means of non-boson samplers. Moreover, we estimate the sample sizes required for their solution by passive linear interferometers, and it is shown that they are independent of the size of the Hilbert space.
description: Close to the version published in PRA
Massless Dirac fermions in two dimensions: Confinement in nonuniform magnetic fields
Creators: name: Downing, C. A.
name: Portnoi, M. E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show how it is possible to trap two-dimensional massless Dirac fermions in spatially inhomogeneous magnetic fields, as long as the formed magnetic quantum dot (or ring) is of a slowly decaying nature. It is found that a modulation of the depth of the magnetic quantum dot leads to successive confinement-deconfinement transitions of vortexlike states with a certain angular momentum, until a regime is reached where only states with one sign of angular momentum are supported. We illustrate these characteristics with both exact solutions and a hitherto unknown quasi-exactly solvable model utilizing confluent Heun functions.
description: 7 pages, 3 figures
EV Insulin Supplemental Material AJP-Endo
Creators: name: Malin, Steven
Publisher: name: figshare
Year: 2022
Subjects: subject: 110306 Endocrinology
subject: FOS: Clinical medicine

description: Before flow acquisition, each sample was diluted in different volumes according to MISEV 2018 guidelines (Minimal information for studies of EVs) to verify single particle definition. Provideed is the FCM pass report/MiFlowcyt check list.
title: Classification des domaines de l'ERC
title: ERC Classification scheme
Creators: name: Institut De L’information Scientifique Et Technique (Inist)-CNRS/UAR76
name: Conseil Européen De La Recherche
Publisher: name: Institut de l’information scientifique et technique (Inist) - CNRS/UAR76
Year: 2022
Subjects: subject: Sciences
subject: Classification
subject: Sciences
subject: Classification

description: Plan de classement des domaines scientifiques utilisé par l'ERC (Conseil Européen de la Recherche) en 2021 et 2022 pour caractériser les projets de recherche soutenus par un financement de l'ERC. La contribution de l'Inist concerne la traduction française des intitulés et la génération de la version bilingue mise en ligne sur Loterre.
HEROES: The Hawaii eROSITA Ecliptic Pole Survey Catalog
Creators: name: Taylor, A. J.
name: Barger, A. J.
name: Cowie, L. L.
name: Hasinger, G.
name: Hu, E. M.
name: Songaila, A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a seven band (g, r, i, z, y, NB816, NB921) catalog derived from a Subaru Hyper Suprime-Cam (HSC) imaging survey of the North Ecliptic Pole (NEP). The survey, known as HEROES, consists of 44 sq. deg of contiguous imaging reaching median 5-sigma depths of g: 26.5, r: 26.2, i: 25.7, z: 25.1, y: 23.9, NB816: 24.4, NB921: 24.4 mag. We reduced these data with the HSC pipeline software hscPipe, and produced a resulting multiband catalog containing over 25 million objects. We provide the catalog in three formats: (1) a collection of hscPipe format forced photometry catalogs, (2) a single combined catalog containing every object in that dataset with selected useful columns, and (3) a smaller variation of the combined catalog with only essential columns for basic analysis or low memory machines. The catalog uses all the available HSC data on the NEP and may serve as the primary optical catalog for current and future NEP deep fields from instruments and observatories such as SCUBA-2, eROSITA, Spitzer, Euclid, and JWST.
description: 10 pages, 6 figures, 2 tables. Submitted to ApJS. v2: 11 pages, 6 figures, 2 tables. Accepted to ApJS
Numerical Relativity Beyond Astrophysics
Creators: name: Garfinkle, David
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Though the main applications of computer simulations in relativity are to astrophysical systems such as black holes and neutron stars, nonetheless there are important applications of numerical methods to the investigation of general relativity as a fundamental theory of the nature of space and time. This paper gives an overview of some of these applications. In particular we cover (i) investigations of the properties of spacetime singularities such as those that occur in the interior of black holes and in big bang cosmology. (ii) investigations of critical behavior at the threshold of black hole formation in gravitational collapse. (iii) investigations inspired by string theory, in particular analogs of black holes in more than 4 spacetime dimensions and gravitational collapse in spacetimes with a negative cosmological constant.
description: Review paper submitted to Reports on Progress in Physics
Polarized X-rays from windy accretion in Cygnus X-1
Creators: name: Poutanen, Juri
name: Veledina, Alexandra
name: Beloborodov, Andrei M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Recent X-ray polarimetric data on the prototypical black hole X-ray binary Cyg~X-1 from the Imaging X-ray Polarimetry Explorer present tight constraints on accretion geometry in the hard spectral state. Contrary to general expectations of a low, <1% polarization degree (PD), the observed average PD was found to be a factor of 4 higher. Aligned with the jet position angle on the sky, the observed polarization favors geometry of the X-ray emission region stretched normally to the jet in the accretion disk plane. The high PD is, however, difficult to reconcile with the low orbital inclination of the binary $i\approx30$ deg. We suggest that this puzzle can be explained if the emitting plasma is outflowing with a mildly relativistic velocity $\gtrsim0.4\,c$. Our radiative transfer simulations show that Comptonization in the outflowing medium elongated in the plane of the disk radiates X-rays with the degree and direction of polarization consistent with observations at $i\approx30$ deg.
description: 11 pages, 6 figures, ApJL, in press
Turbulence and Star Formation in a Sample of Spiral Galaxies
Creators: name: Maier, Erin
name: Chien, Li-Hsin
name: Hunter, Deidre A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We investigate turbulent gas motions in spiral galaxies and their importance to star formation in far outer disks, where the column density is typically far below the critical value for spontaneous gravitational collapse. Following the methods of Burkhart et al. (2010) on the Small Magellanic Cloud, we use the third and fourth statistical moments, as indicators of structures caused by turbulence, to examine the neutral hydrogen (HI) column density of a sample of spiral galaxies selected from The HI Nearby Galaxy Survey (THINGS, Walter et al. 2008). We apply the statistical moments in three different methods- the galaxy as a whole, divided into a function of radii and then into grids. We create individual grid maps of kurtosis for each galaxy. To investigate the relation between these moments and star formation, we compare these maps with their far-ultraviolet images taken by the Galaxy Evolution Explorer (GALEX) satellite. We find that the moments are largely uniform across the galaxies, in which the variation does not appear to trace any star forming regions. This may, however, be due to the spatial resolution of our analysis, which could potentially limit the scale of turbulent motions that we are sensitive to greater than ~700 pc. From comparison between the moments themselves, we find that the gas motions in our sampled galaxies are largely supersonic. This analysis also shows that Burkhart et al. (2010)'s methods may be applied not just to dwarf galaxies but also to normal spiral galaxies.
description: 15 pages, 5 figures, accepted in Astronomy Journal
Placement Delivery Array Design through Strong Edge Coloring of Bipartite Graphs
Creators: name: Yan, Qifa
name: Tang, Xiaohu
name: Chen, Qingchun
name: Cheng, Minquan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: The technique of coded caching proposed by Madddah-Ali and Niesen is a promising approach to alleviate the load of networks during busy times. Recently, placement delivery array (PDA) was presented to characterize both the placement and delivery phase in a single array for the centralized coded caching algorithm. In this paper, we interpret PDA from a new perspective, i.e., the strong edge coloring of bipartite graph. We prove that, a PDA is equivalent to a strong edge colored bipartite graph. Thus, we can construct a class of PDAs from existing structures in bipartite graphs. The class includes the scheme proposed by Maddah-Ali \textit{et al.} and a more general class of PDAs proposed by Shangguan \textit{et al.} as special cases. Moreover, it is capable of generating a lot of PDAs with flexible tradeoff between the sub-packet level and load.
description: 5 pages, 2 figures
The Moderating Role of Events on Emotional Inertia in Daily Life
Creators: name: Koval, Peter
name: Hermawan, Janice Priskila
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology
subject: daily events
subject: affect dynamics
subject: emotional inertia
subject: daily life

description: Assessing the link between emotional inertia with event occurrence and intensity using data from the assessing, understanding, and regulating affect (AURA) study.
Dipoena hainanensis Zhu 1998
Creators: name: Gao, Cai-Xia
name: Li, Shu-Qiang
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Theridiidae
Dipoena
Dipoena hainanensis

description: Dipoena hainanensis Zhu, 1998 Dipoena hainanensis Zhu, 1998: 234, figs 153A–F; Song et al., 1999: 110, figs 54C–D. K–L. Material examined. China, Yunnan, 9♂, 2♀, Xishuangbanna, Menglun Nature Reserve, secondary tropical seasonal moist forest (21º54.390'N, 101º16.811'E), 10 August 2007, Guo Zheng leg.; 2♂, 5♀, Menglun Nature Reserve, secondary tropical montane evergreen broad-leaved forest (about 20 years) (21º57.809'N, 101º12.173'E), 4 August 2007, Guo Zheng leg.; 1♀, Menglun, Anogeissus acuminata plantation (about 20 years) (21º53.993'N, 101º16.810'E), 19 August 2007, Guo Zheng leg. Distribution. China (Hainan, Yunnan); Laos.
description: Published as part of Gao, Cai-Xia & Li, Shu-Qiang, 2014, Comb-footed spiders (Araneae: Theridiidae) in the tropical rainforest of Xishuangbanna, Southwest China, pp. 1-135 in Zoological Systematics 39 (1) on page 44, DOI: 10.11865/zs20140101, http://zenodo.org/record/7475365
Shape- and orientation-dependent diffusiophoresis of colloidal ellipsoids
Creators: name: Doan, Viet Sang
name: Kim, Dong-Ook
name: Snoeyink, Craig
name: Sun, Ying
name: Shin, Sangwoo
Publisher: name: arXiv
Year: 2023
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We present the diffusiophoresis of ellipsoidal particles induced by ionic solute gradients. Contrary to the common expectation that diffusiophoresis is shape independent, here we show experimentally that this assumption breaks down when the thin Debye layer approximation is relaxed. By tracking the translation and rotation of various ellipsoids, we find that the phoretic mobility of ellipsoids is sensitive to the eccentricity and the orientation of the ellipsoid relative to the imposed solute gradient, and can further lead to nonmonotonic behavior under strong confinement. We show that such a shape- and orientation-dependent diffusiophoresis of colloidal ellipsoids can be easily captured by modifying theories for spheres.
Prospectando Epicollect5: una herramienta de ciencia abierta para el aprendizaje colaborativo
Creators: name: Diez Castillo, Agustín A.
Publisher: name: Zenodo
Year: 2023
Subjects: Prospección arqueológica
Ciencia abierta
Aprendizaje colaborativo
Epicollect5
Ciencia ciudadana.

description: EpiCollect5 es una base de datos (BDD) que permite la toma de los mismo de forma versátil. Consta de dos elementos: uno en el que se diseña la BDD desde cualquier navegador y una app multiplataforma gracias a la cual se toman los datos utilizando dispositivos móviles (Aanesen et al. 2009). El tipo de datos que se puede tomar es muy variado (notas de audio, vídeo, fotografías, alfanuméricos, numéricos, …) lo que la convierte en una magnífica herramienta para proyectos de ciencia abierta (Heigl, Zaller 2014), ApS, o, como en nuestro caso, aprendizaje colaborativo. Esta herramienta ha sido implementada dentro del workshop de prospección del Máster Universitario en Arqueología de la Universitat de València. Epicollect5 se eligió porque, de manera automática, georreferencia los hallazgos que cada una de las personas que participan en la prospección realiza y, además, permite la elaboración de mapas de calor (fig. 1) en tiempo real, por tipo de hallazgos (Alessandri et al. 2022). EpiCollect5 permite al estudiantado interactuar con datos y escenarios del mundo real, haciendo que sus experiencias de aprendizaje sean más relevantes y significativas. Al tomar datos en un entorno real, pueden relacionar los conceptos teóricos aprendidos en las clases teóricas con su aplicación práctica. En resumen, EpiCollect5 ofrece un poderoso conjunto de herramientas para el aprendizaje colaborativo, lo que permite al estudiantado y profesorado participar en el proceso de toma de datos, pero también, de manera más destacada, en su análisis e interpretación (Aanesen et al. 2014). Al incorporar epicollect5 en entornos educativos que impliquen la toma de datos, el estudiantado desarrolla habilidades esenciales, entre las que se encuentra el trabajo en equipo, el pensamiento crítico, el diseño y uso de BDD, así como la resolución de problemas a la vez que adquieren un conocimiento comprensivo de lo que supone el diseño y la realización de una prospección arqueológica. Los resultados obtenidos han sido muy interesantes y el estudiantado ha disfrutado con el uso de la herramienta, al mismo tiempo que aprendía a registrar los hallazgos de una prospección arqueológica. Su grado de satisfacción con Epicollect5 es muy elevado.
On the spectrum of the differential operators of even order with periodic matrix coefficients
Creators: name: Veliev, O. A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Spectral Theory (math.SP)
subject: FOS: Mathematics

description: In this paper, we consider the band functions, Bloch functions and spectrum of the self-adjoint differential operator L with periodic matrix coefficients. Conditions are found for the coefficients under which the number of gaps in the spectrum of the operator L is finite
Gifts from nature : genomic and metabolomic approaches to natural product discovery from cyanobacteria and actinomycetes
Creators: name: Ferrinho, Scarlet
Publisher: name: The University of St Andrews
Year: 2023
Subjects: subject: Natural product
subject: Biochemistry
subject: Molecular biology
subject: Synthetic biology
subject: Analytical chemistry
subject: Cyanobacteria
subject: Sequencing
subject: Genomics
subject: Metabolomics
subject: Cloning
subject: Heterologous expression
subject: Bioinformatics
subject: FOS: Computer and information sciences
subject: Actinomycetes

description: Cyanobacteria represent a treasure trove of uncovered natural products (NPs) and unbeknown biosynthetic machinery. Currently the exponential rise in genome sequencing of cyanobacteria and other organisms has revealed a wealth of biosynthetic gene clusters, many of which cannot be linked to a NP. This work describes the investigation of cyanobacterial strains for the presence of non-ribosomal peptide synthase (NRPS) and polyketide synthase (PKS) genes screened by PCR and Sanger sequencing. In addition to whole genome sequencing (WGS) using Illumina and Oxford Nanopore was undertaken of selected strains. Bioinformatic tools were used to detect biosynthetic gene clusters (BGCs) and identify regions of interest. Furthermore, publicly available data, in the form of publications and nucleotide data from genome assemblies was gathered to form several datasets to analyse and link cyanobacterial metabolites to their genomes, and to uncover the diversity of cyanobacterial NPs. Recent development has been undergoing to establish heterologous expression tools for cyanobacteria. Currently only a dozen cyanobacterial natural products have been heterologously expressed, this work details the heterologous expression of a ribosomally synthesised and post-translationally modified peptide (RiPP) named viridisamide A from Oscillatoria nigro-viridis PCC 7112 using the DiPaC method. This thesis also describes the use of this method for the cloning of the Fischerazole BGC from Fischerella sp. 9431. Furthermore, the NP cyclomarin A, a marine natural product from an actinomycetes rather than a cyanobacterium, which possesses potent bioactivities against both tuberculosis and malaria was investigated. Here precursor directed biosynthesis of the fermented strain Streptomyces sp. BCC41611 was used to created halogenated cyclomarin variants. In addition, synthetic chemistry methods were used to functionalise the epoxide of the biosynthesised NP by azidolysis and copper(I) catalysed alkyne-azide cycloaddition. Lastly, the halogenase VirX1 from the cyanophage syn10 was studied. This phage infects the marine cyanobacterial genera Synechococcus and Prochlorococcus which are responsible for over a quarter of global photosynthesis. Here, the halogenase was investigated in order to attempt to uncover its natural substrates.
Measuring quasiprobability distribution functions of the cavity field considering field and atomic decays
Creators: name: Yazdanpanah, N.
name: Tavassoly, M. K.
name: Juarez-Amaro, R.
name: Moya-Cessa, H. M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the possibility of reconstructing the quantum state of light in a cavity subject to dissipation. We pass atoms, also subject to decay, through the cavity and surprisingly show that both decays allow the measurement of $s$-parametrized quasiprobability distributions. In fact, if we consider only atomic decay, we show that the Wigner function may be reconstructed. Because these distributions contain whole information of the initial field state, it is possible to recover information after both atomic and field decays occur.
description: 12 pages, 1 figure