cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A random matrix formulation of fidelity decay
Creators: name: Gorin, T.
name: Prosen, T.
name: Seligman, T. H.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose to study echo dynamics in a random matrix framework, where we assume that the perturbation is time independent, random and orthogonally invariant. This allows to use a basis in which the unperturbed Hamiltonian is diagonal and its properties are thus largely determined by its spectral statistics. We concentrate on the effect of spectral correlations usually associated to chaos and disregard secular variations in spectral density. We obtain analytic results for the fidelity decay in the linear response regime. To extend the domain of validity, we heuristically exponentiate the linear response result. The resulting expressions, exact in the perturbative limit, are accurate approximations in the transition region between the ``Fermi golden rule'' and the perturbative regimes, as examplarily verified for a deterministic chaotic system. To sense the effect of spectral stiffness, we apply our model also to the extreme cases of random spectra and equidistant spectra. In our analytical approximations as well as in extensive Monte Carlo calculations, we find that fidelity decay is fastest for random spectra and slowest for equidistant ones, while the classical ensembles lie in between. We conclude that spectral stiffness systematically enhances fidelity.
description: 30 pages, 13 figures, stylistic changes
Ising-Bloch Transition in Degenerate Optical Parametric Oscillators
Creators: name: Perez-Arjona, Isabel
name: Silva, Fernando
name: de Valcarcel, German J.
name: Roldan, Eugenio
name: Sanchez-Morcillo, Victor J.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Domain walls in type I degenerate optical parametric oscillators are numerically investigated. Both steady Ising and moving Bloch walls are found, bifurcating one into another through a nonequilibrium Ising--Bloch transition. Bloch walls are found that connect either homogeneous or roll planforms. Secondary bifurcations affecting Bloch wall movement are characterized that lead to a transition from a steady drift state to a temporal chaotic movement as the system is moved far from the primary, Ising--Bloch bifurcation. Two kinds of routes to chaos are found, both involving tori: a usual Ruelle-Takens and an intermittent scenarios.
description: 12 figures
Fred Stickley's 6 years in the Army
Creators: name: Project Team, Their Finest Hour
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: The attached was written by my father after his move to a care home at the age of 90 where he learnt to use a computer and wrote the following shortly before his death at the age of 93. I have left the text as he wrote it.
MPEC 2025-E39 : 2021 GC24
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2025
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Orthogonal representations of Steiner triple system incidence graphs
Creators: name: Deaett, Louis
name: Hall, H. Tracy
Publisher: name: arXiv
Year: 2017
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 52C99 (Primary) 05C50 (Secondary)

description: The Heawood graph is the point-block incidence graph of the Fano plane (the unique Steiner triple system of order 7). We show that the minimum semidefinite rank of this graph is 10. That is, 10 is the smallest number of complex dimensions in which this graph has a faithful orthogonal representation, i.e., an assignment of a vector to each vertex such that the edges occur between precisely those vertices given non-orthogonal pairs. Some of our techniques extend to the incidence graphs of Steiner triple systems of larger order, and we include some observations and questions about the more general case.
description: 13 pages, 4 figures; to appear in Discrete Mathematics
Penthorum sedoides Linnaeus, 1753, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1753
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Saxifragales
Penthoraceae
Penthorum
Penthorum sedoides

description: Penthorum sedoides, spec. nov.
 1. Penthorum. Gron. virg. 51. * Act. ups. 1744. p. 12. t. 2.
 Habitat in Virginia . ♃. ☉
description: Published as part of Linnaeus, Carolus, 1753, Species plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas, Stockholm :Laurentius Salvius on page 432, DOI: 10.5281/zenodo.3931989
A class of Einstein--Weyl spaces associated to an integrable system of hydrodynamic type
Creators: name: Dunajski, Maciej
Publisher: name: arXiv
Year: 2003
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: HyperCR Einstein--Weyl equations in 2+1 dimensions reduce to a pair of quasi-linear PDEs of hydrodynamic type. All solutions to this hydrodynamic system can be in principle constructed from a twistor correspondence, thus establishing the integrability. Simple examples of solutions including the hydrodynamic reductions yield new Einstein--Weyl structures.
description: Final version. To appear in JGP
Evolution and plasticity of sleep
Creators: name: Ungurean, G
name: van der Meij, J
name: Rattenborg, NC
name: Lesku, John
Publisher: name: La Trobe
Year: 2022
Subjects: classificationCode: 310901
subject: Animal behaviour
classificationCode: 310499
subject: Evolutionary biology not elsewhere classified
classificationCode: 320999
subject: Neurosciences not elsewhere classified

description: Sleep is a highly conserved state across the animal kingdom. However, sleep duration, behavior and associated neural activity show great diversity across taxonomic groups, and sometimes even within the same species. Understanding sleep functions depends on understanding when sleep emerged, which of its characteristics have persisted throughout evolution, and what accounts for the similarities and differences in sleep behavior and neurophysiology across different species. Here, we provide an overview of the latest findings in comparative sleep neurophysiology and highlight remarkable examples of sleep flexibility. We discuss the implications that these findings have on the proposed functions of sleep.
Oxalis acetosella Linnaeus, 1753, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1753
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Oxalidales
Oxalidaceae
Oxalis
Oxalis acetosella

description: Oxalis acetosella, spec. nov.
 1. Oxalis scapo unifloro, foliis ternatis, radice squamoso-articulata. Hort. cliff. 175. Fl. suec. 385. Roy. lugdb. 458. Mat. med. 216.
 Oxalis foliis ternatis, scapo unifloro. Fl. lapp. 194.
 Trifolium acetosum vulgare. Bauh. pin. 330.
 Trifolium acetosum. Dod. pempt. 578.
 β. Oxys flore subcaeruleo. Tournef. inst. 88.
 γ. Oxys flore purpurascente. Tournef. inst. 88.
 Habitat in Europae borealis sylvis. ♃
description: Published as part of Linnaeus, Carolus, 1753, Species plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas, Stockholm :Laurentius Salvius on page 433, DOI: 10.5281/zenodo.3931989
Additional File 1:
Creators: name: Compaoré, Adélaïde
name: Gies, Sabine
name: Brabin, Bernard
name: Halidou Tinto
name: Brabin, Loretta
Publisher: name: figshare
Year: 2018
Subjects: subject: Biochemistry
subject: Molecular Biology
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Science Policy
subject: Computational Biology

description: (doc). Additional quotations supporting main themes. (DOCX 15 kb)
Using speleothems to constrain late Cenozoic uplift rates in karst terranes
Creators: name: Engel, John
name: Woodhead, J
name: Hellstrom, J
name: White, Susan
name: White, N
name: Green, H
Publisher: name: La Trobe
Year: 2022
Subjects: classificationCode: 370502
subject: Geochronology
classificationCode: 370511
subject: Structural geology and tectonics

description: The utility of speleothems as environmental and geological archives has greatly expanded with recent advances in geochronology. Here we reevaluate their ability to constrain late Cenozoic uplift in karst terranes. Using combined U-Th and U-Pb speleothem chronologies for the Buchan karst along the passive margin of southeastern Australia, we calculate a maximum uplift rate of 76 ± 7 m m.y.-1 maintained over the past 3.5 m.y. The timing and extent of this process is consistent with independent constraints on Neogene uplift in Australia, possibly in response to increased plate-boundary strain with New Zealand. Speleothem chronologies provide highly precise age control on individual events and the potential for near-continuous records across long periods of geological time, complementing and expanding upon existing uplift proxies.
Home visits by occupational therapists improve adherence to recommendations: Process evaluation of a randomised controlled trial
Creators: name: Lockwood, Kylee
name: Harding, Katherine
name: Boyd, Jude
name: Taylor, Nicholas
Publisher: name: La Trobe
Year: 2022
Subjects: classificationCode: 420305
subject: Health and community services
classificationCode: 420599
subject: Nursing not elsewhere classified

description: Introduction: As part of hospital discharge planning, occupational therapists often provide recommendations to improve the interaction between a person and their home environment. The aim of this study was to investigate the number and type of recommendations made by occupational therapists during a home assessment visit compared to hospital-based assessment for patients recovering from hip fracture. A secondary aim was to explore adherence rates to the different types of recommendations. Methods: Process evaluation of a randomised controlled trial of 65 participants recovering from hip fracture, returning to community living after hospital discharge. All participants received inpatient multidisciplinary rehabilitation and hospital-based assessment by an occupational therapist (usual care). In addition, the intervention group participated in a single home visit with an occupational therapist prior to hospital discharge. Analysis included the number and type of occupational therapy recommendations, adherence to recommendations at 30 days after discharge, and mediation analysis. Results: Participants in the home visit group received more recommendations than the usual care group (mean difference [MD] 2.8, 95% CI 1.6 to 3.9) and adhered to a greater proportion of recommendations for assistive technologies (MD 11.4%, 95% CI 2.6 to 20.2) and task modifications (MD 10.0%, 95% CI 0.7 to 19.3). Participants in both groups had lower rates of adherence to recommendations for home modifications compared with other types of recommendations. Adherence to recommendations was a mediator in the relationship between participants' involvement in a pre-discharge home visit and reduced hospital readmissions. Conclusion: There was greater adherence to occupational therapy recommendations when patients recovering from hip fracture participated in a home visit compared to hospital-based assessment, contributing to reduced readmissions to hospital in the first 30 days. Home visits offer additional benefits to hospital-based assessment through the use of a collaborative approach to decision making in the home environment.
A large covariance matrix estimator under intermediate spikiness regimes
Creators: name: Farnè, Matteo
name: Montanari, Angela
Publisher: name: arXiv
Year: 2017
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences
subject: 62H25, 65F50, 15A18, 65F22

description: The present paper concerns large covariance matrix estimation via composite minimization under the assumption of low rank plus sparse structure. In this approach, the low rank plus sparse decomposition of the covariance matrix is recovered by least squares minimization under nuclear norm plus $l_1$ norm penalization. This paper proposes a new estimator of that family based on an additional least-squares re-optimization step aimed at un-shrinking the eigenvalues of the low rank component estimated at the first step. We prove that such un-shrinkage causes the final estimate to approach the target as closely as possible in Frobenius norm while recovering exactly the underlying low rank and sparsity pattern. Consistency is guaranteed when $n$ is at least $O(p^{\frac{3}{2}δ})$, provided that the maximum number of non-zeros per row in the sparse component is $O(p^δ)$ with $δ\leq \frac{1}{2}$. Consistent recovery is ensured if the latent eigenvalues scale to $p^α$, $α\in[0,1]$, while rank consistency is ensured if $δ\leq α$. The resulting estimator is called UNALCE (UNshrunk ALgebraic Covariance Estimator) and is shown to outperform state of the art estimators, especially for what concerns fitting properties and sparsity pattern detection. The effectiveness of UNALCE is highlighted on a real example regarding ECB banking supervisory data.
Persistent holes in a fluid
Creators: name: Merkt, Florian S.
name: Deegan, Robert D.
name: Goldman, Daniel I.
name: Rericha, Erin C.
name: Swinney, Harry L.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We observe stable holes in a vertically oscillated 0.5 cm deep aqueous suspension of cornstarch for accelerations a above 10g. Holes appear only if a finite perturbation is applied to the layer. Holes are circular and approximately 0.5 cm wide, and can persist for more than 10^5 cycles. Above a = 17g the rim of the hole becomes unstable producing finger-like protrusions or hole division. At higher acceleration, the hole delocalizes, growing to cover the entire surface with erratic undulations. We find similar behavior in an aqueous suspension of glass microspheres.
description: 4 pages, 6 figures
Oxalis purpurea Linnaeus, 1753, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1753
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Oxalidales
Oxalidaceae
Oxalis
Oxalis purpurea

description: Oxalis purpurea, spec. nov.
 2. Oxalis scapo unifloro, foliis ternatis, radice bulbosa. Hort. cliff. 175. Roy. lugdb. 458.
 Oxalidi affinis planta bulbosa africana, flore purpureo magno. Breyn. cent. 102. t.46.
 Oxys bulbosa africana rotundifolia, caulibus & floribus purpureis amplis. Comm. hort.1. p.41. t.21.
 Oxys bulbosa trifolia hirsuta, flore albo. Burm. afr. 67. t. 27. f. 3.
 Habitat in AEthiopia . ♃
description: Published as part of Linnaeus, Carolus, 1753, Species plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas, Stockholm :Laurentius Salvius on page 433, DOI: 10.5281/zenodo.3931989
Single- and double-scattering production of four muons in ultraperipheral PbPb collisions at the Large Hadron Collider
Creators: name: van Hameren, Andreas
name: Klusek-Gawenda, Mariola
name: Szczurek, Antoni
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We discuss production of two $μ^+μ^-$ pairs in ultraperipheral ultrarelativistic heavy ion collisions at the LHC. We take into account electromagnetic (two-photon) double-scattering production and for a first time direct $γγ$ production of four muons in one scattering. We study the unexplored process $γγ\to μ^+μ^-μ^+μ^-$. We present predictions for total and differential cross sections. Measurable nuclear cross sections are obtained and corresponding differential distributions and counting rates are presented.
description: 13 pages, 11 figures, 1 table
MOESM3 of Rationale, design, and baseline characteristics of the CArdiovascular safety and Renal Microvascular outcomE study with LINAgliptin (CARMELINAÂŽ): a randomized, double-blind, placebo-controlled clinical trial in patients with type 2 diabetes and high cardio-renal risk
Creators: name: Rosenstock, Julio
name: Perkovic, Vlado
name: Alexander, John
name: Cooper, Mark
name: Marx, Nikolaus
name: Pencina, Michael
name: Toto, Robert
name: Wanner, Christoph
name: Zinman, Bernard
name: Baanstra, David
name: Pfarr, Egon
name: Mattheus, Michaela
name: Broedl, Uli
name: Hans-Juergen Woerle
name: Jyothis George
name: Eynatten, Maximilian
name: McGuire, Darren
Publisher: name: figshare
Year: 2018
Subjects: subject: Medicine
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Marine Biology

description: Additional file 3. Baseline characteristics by established CV disease and prevalent kidney disease at baseline in CARMELINAÂŽ participants.
Telegram Regarding Violation of Metzger's Diplomatic Immunity
Creators: name: United States. Embassy (Warsaw)
Publisher: name: The University of Texas at Austin
Year: 1968
Subjects: Box 201 Folder 1
Box 201 Folder 01
Poland -- Politics and government -- 1945-1980
Poland -- Relations -- Soviet Union

description: Telegram from Ambassador Gronouski detailing reaction to violation of immunity and Sieradzki's threat.
Oxalis longiflora Linnaeus, 1753, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1753
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Oxalidales
Oxalidaceae
Oxalis
Oxalis longiflora

description: Oxalis longiflora, spec. nov.
3. Oxalis scapo unifloro, foliis ternatis semibifidis: lobis lanceolatis.
 Habitat in Virginia .
 Caulis nudus, simplex, squamis aliquot adspersus, e radice per terram exit terminatus Umbella ex foliis novem & flore unico. Folia petiolata, ternata: foliolis sessilibus plus quam semibifidis: lobis lanceolatis. Pedunculus uniflorus, in medio stipularum pari notatus. Flos unicus, longus.
description: Published as part of Linnaeus, Carolus, 1753, Species plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas, Stockholm :Laurentius Salvius on page 433, DOI: 10.5281/zenodo.3931989
title: ÐÐ¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð¿ÑÐ¾ÑÐµÑÑÐ° Ð±ÑÑÐµÐ½Ð¸Ñ Ð½Ð°ÐºÐ»Ð¾Ð½Ð½ÑÑ ÑÐºÐ²Ð°Ð¶Ð¸Ð½ Ð² Ð¾ÑÑÐ¾ÑÑÐ¾Ð¿Ð½ÑÑ ÑÑÐµÐ´Ð°Ñ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Modeling of the process of drilling inclined wells in orthotropic environments
Creators: name: ÐÑÑÐºÐ¾, ÐÐ¸ÑÐ°Ð¸Ð»
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2023
Subjects: Ð¼Ð¾Ð´ÐµÐ»Ñ Ð±ÑÑÐµÐ½Ð¸Ñ
Ð¼Ð°ÑÐµÐ¼Ð°ÑÐ¸ÑÐµÑÐºÐ°Ñ Ð¼Ð¾Ð´ÐµÐ»Ñ
Ð¼Ð¾Ð´ÐµÐ»Ñ Ð´Ð¾Ð»Ð¾ÑÐ°
ÑÐ°ÑÑÐµÑ Ð´Ð¾Ð»Ð¾ÑÐ°
Ð¼Ð¾Ð´ÐµÐ»Ñ Ð±ÑÑÐ¾Ð²Ð¾Ð¹ ÑÑÑÐ±Ñ
ÑÐ°ÑÑÐµÑ Ð±ÑÑÐ¾Ð²Ð¾Ð¹ ÑÑÑÐ±Ñ
drilling model
mathematical model
bit model
bit calculation
drill pipe model
drill pipe calculation

description: Â  Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ ÑÐ°ÑÑÐ¼Ð¾ÑÑÐµÐ½ Ð¾Ð´Ð¸Ð½ Ð¸Ð· Ð²Ð¾Ð·Ð¼Ð¾Ð¶Ð½ÑÑ Ð¿Ð¾Ð´ÑÐ¾Ð´Ð¾Ð² Ðº Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¿ÑÐ¾ÑÐµÑÑÐ° Ð±ÑÑÐµÐ½Ð¸Ñ Ð½ÐµÑÑÐµÐ³Ð°Ð·Ð¾Ð²ÑÑ ÑÐºÐ²Ð°Ð¶Ð¸Ð½. Ð¡Ð¾Ð·Ð´Ð°Ð½Ñ 3D Ð¼Ð¾Ð´ÐµÐ»Ð¸ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÑ ÑÐ»ÐµÐ¼ÐµÐ½ÑÐ¾Ð² Ð±ÑÑÐ¾Ð²Ð¾Ð¹ ÐºÐ¾Ð»Ð¾Ð½Ð½Ñ, Ð° Ð¸Ð¼ÐµÐ½Ð½Ð¾ Ð±ÑÑÐ¾Ð²ÑÑ ÑÑÑÐ± Ð¸ Ð´Ð¾Ð»Ð¾ÑÐ°. ÐÑÐ¾Ð¸Ð·Ð²ÐµÐ´ÐµÐ½Ñ Ð¿ÑÐ¾ÑÐ½Ð¾ÑÑÐ½ÑÐµ ÑÐ°ÑÑÐµÑÑ Ð´Ð°Ð½Ð½ÑÑ Ð¼Ð¾Ð´ÐµÐ»ÐµÐ¹ Ð² ÑÑÐ»Ð¾Ð²Ð¸ÑÑ Ð¿ÑÐ¸Ð±Ð»Ð¸Ð¶ÐµÐ½Ð½ÑÑ Ðº ÑÐºÑÐ¿Ð»ÑÐ°ÑÐ°ÑÐ¸Ð¾Ð½Ð½ÑÐ¼. ÐÐ¾Ð»ÑÑÐµÐ½Ð½ÑÐµ Ð´Ð°Ð½Ð½ÑÐµ ÑÐ¾Ð¿Ð¾ÑÑÐ°Ð²Ð»ÐµÐ½Ñ Ñ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐ°Ð¼Ð¸, Ð¿Ð¾Ð»ÑÑÐµÐ½Ð½ÑÐ¼Ð¸ Ð¾Ð¿ÑÑÐ½ÑÐ¼ Ð¿ÑÑÐµÐ¼. ÐÐ¾ Ð´Ð°Ð½Ð½ÑÐ¼ ÑÐ°ÑÑÐµÑÐ¾Ð² Ð¿ÑÐ¾Ð¸Ð·Ð²ÐµÐ´ÐµÐ½Ð° Ð¾Ð¿ÑÐ¸Ð¼Ð¸Ð·Ð°ÑÐ¸Ñ Ð¼Ð¾Ð´ÐµÐ»ÐµÐ¹ Ñ ÑÐµÐ»ÑÑ ÑÐ¼ÐµÐ½ÑÑÐµÐ½Ð¸Ñ Ð¼Ð°ÑÑÑ Ð¼Ð¾Ð´ÐµÐ»ÐµÐ¹ Ñ ÑÐ¾ÑÑÐ°Ð½ÐµÐ½Ð¸ÐµÐ¼ Ð¸Ñ ÑÐ°Ð±Ð¾ÑÐ¸Ñ ÑÐ²Ð¾Ð¹ÑÑÐ².
description: In this paper, one of the possible approaches to modeling the process of drilling oil and gas wells is considered. 3D models of the main elements of the drilling column, namely drill pipes and bits, have been created. Strength calculations of these models were performed under conditions close to operational ones. The data obtained are compared with the results obtained experimentally. According to the calculations, the models were optimized to reduce the mass of the models while preserving their working properties.
The PDEs of biorthogonal polynomials arising in the two-matrix model
Creators: name: Bertola, M.
name: Eynard, B.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: The two-matrix model can be solved by introducing bi-orthogonal polynomials. In the case the potentials in the measure are polynomials, finite sequences of bi-orthogonal polynomials (called "windows") satisfy polynomial ODEs as well as deformation equations (PDEs) and finite difference equations (Delta-E) which are all Frobenius compatible and define discrete and continuous isomonodromic deformations for the irregular ODE, as shown in previous works of ours. In the one matrix model an explicit and concise expression for the coefficients of these systems is known and it allows to relate the partition function with the isomonodromic tau-function of the overdetermined system. Here, we provide the generalization of those expressions to the case of bi-orthogonal polynomials, which enables us to compute the determinant of the fundamental solution of the overdetermined system of ODE+PDEs+Delta-E.
description: 20 pages v1 18 Nov 2003; v2 9 Jan 2004: trivial Latex mistake corrected
Perspectives of patients, carers and mental health staff on early warning signs of relapse in psychosis: a qualitative investigation
Creators: name: Allan, Stephanie
name: Bradstreet, Simon
name: McLeod, Hamish J
name: Gleeson, John
name: Farhall, John
name: Lambrou, Maria
name: Clark, Andrea
name: Gumley, Andrew
name: Ainsworth, John
name: Bucci, Sandra
name: Lewis, Shon
name: Machin, Mathew
name: Yung, Alison
name: AlvarezJiminez, Mario
name: Cotton, Sue
name: Lederman, Reeva
name: Birchwood, Max
name: Singh, Swaran
name: Thompson, Ancrew
name: Briggs, Andrew
name: Williams, Chris
name: French, Paul
name: MacLennan, Graeme
name: Mihalopolous, Cathy
name: Norrie, John
name: Schwannauer, Matthias
name: Reilly, Frank
name: Smith, Lesley
name: Sundram, Suresh
Publisher: name: La Trobe
Year: 2022
Subjects: classificationCode: 320221
subject: Psychiatry (incl. psychotherapy)
classificationCode: 420306
subject: Health care administration

description: Background: Relapse prevention strategies based on monitoring of early warning signs (EWS) are advocated for the management of psychosis. However, there has been a lack of research exploring how staff, carers and patients make sense of the utility of EWS, or how these are implemented in context. 
Aims: To develop a multiperspective theory of how EWS are understood and used, which is grounded in the experiences of mental health staff, carers and patients. 
Method: Twenty-five focus groups were held across Glasgow and Melbourne (EMPOWER Trial, ISRCTN: 99559262). Participants comprised 88 mental health staff, 21 patients and 40 carers from UK and Australia (total n = 149). Data were analysed using constructivist grounded theory. 
Results: All participants appeared to recognise EWS and acknowledged the importance of responding to EWS to support relapse prevention. However, recognition of and acting on EWS were constructed in a context of uncertainty, which appeared linked to risk appraisals that were dependent on distinct stakeholder roles and experiences. Within current relapse management, a process of weighted decision-making (where one factor was seen as more important than others) described how stakeholders weighed up the risks and consequences of relapse alongside the risks and consequences of intervention and help-seeking. Conclusions: Mental health staff, carers and patients speak about using EWS within a weighted decision-making process, which is acted out in the context of relationships that exist in current relapse management, rather than an objective response to specific signs and symptoms.
Minimizing Task Space Frechet Error via Efficient Incremental Graph Search
Creators: name: Holladay, Rachel
name: Salzman, Oren
name: Srinivasa, Siddhartha
Publisher: name: arXiv
Year: 2017
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: We present an anytime algorithm that generates a collision-free configuration-space path that closely follows a desired path in task space, according to the discrete Frechet distance. By leveraging tools from computational geometry, we approximate the search space using a cross-product graph. We use a variant of Dijkstra's graph-search algorithm to efficiently search for and iteratively improve the solution. We compare multiple proposed densification strategies and empirically show that our algorithm outperforms a set of state-of-the-art planners on a range of manipulation problems. Finally, we offer a proof sketch of the asymptotic optimality of our algorithm.
Telegram Regarding Kaiser and Troop Movements
Creators: name: United States. Embassy (Warsaw)
Publisher: name: The University of Texas at Austin
Year: 1968
Subjects: Box 201 Folder 3
Box 201 Folder 03
Poland -- Politics and government -- 1945-1980
Poland -- Relations -- Soviet Union

description: Telegram concerning Embassy Officer Kaiser and his family being stopped in addition to rumors of Soviet troop movement
Oxalis flava Linnaeus, 1753, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1753
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Oxalidales
Oxalidaceae
Oxalis
Oxalis flava

description: Oxalis flava, spec. nov.
4. Oxalis scapo unifloro, foliis ternatis bipartitis.
 Oxalis bulbosa, angustis digitatis foliis, flore solitario luteo. Burm. afr. 68. t.27. f.4.
 Oxys africana bulbosa, floribus amplis luteis, foliis minimis hirsutis. Raj. suppl. 549.
 Oxalis africana bulbusa, foliis simpliciter decaphyllis, flore flavo. Burm. afr. 69. t.27. f.5.
 Oxalis bulbosa, simplici caule ad summum folioso, flore luteo. Burm. afr. 81. t.30. f.1.
 Habitat in AEthiopia . ♃
description: Published as part of Linnaeus, Carolus, 1753, Species plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas, Stockholm :Laurentius Salvius on page 433, DOI: 10.5281/zenodo.3931989
A new two-dimensional lattice model that is "consistent around a cube"
Creators: name: Hietarinta, Jarmo
Publisher: name: arXiv
Year: 2003
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: For two-dimensional lattice equations one definition of integrability is that the model can be naturally and consistently extended to three dimensions, i.e., that it is "consistent around a cube" (CAC). As a consequence of CAC one can construct a Lax pair for the model. Recently Adler, Bobenko and Suris conducted a search based on this principle and certain additional assumptions. One of those assumptions was the "tetrahedron property", which is satisfied by most known equations. We present here one lattice equation that satisfies the consistency condition but does not have the tetrahedron property. Its Lax pair is also presented and some basic properties discussed.
description: 8 pages in LaTeX
Intelligence Information Cable Regarding Czechoslovak Fears
Creators: name: United States. Central Intelligence Agency
Publisher: name: The University of Texas at Austin
Year: 1968
Subjects: Box 201 Folder 3
Box 201 Folder 03
Poland -- Politics and government -- 1945-1980
Poland -- Relations -- Soviet Union

description: Intelligence information cable concerning Czechoslovak fears of possible Soviet intervention to halt the political evolution in Czechoslovakia.
Phaselocked patterns and amplitude death in a ring of delay coupled limit cycle oscillators
Creators: name: Dodla, Ramana
name: Sen, Abhijit
name: Johnston, George L.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We study the existence and stability of phaselocked patterns and amplitude death states in a closed chain of delay coupled identical limit cycle oscillators that are near a supercritical Hopf bifurcation. The coupling is limited to nearest neighbors and is linear. We analyze a model set of discrete dynamical equations using the method of plane waves. The resultant dispersion relation, which is valid for any arbitrary number of oscillators, displays important differences from similar relations obtained from continuum models. We discuss the general characteristics of the equilibrium states including their dependencies on various system parameters. We next carry out a detailed linear stability investigation of these states in order to delineate their actual existence regions and to determine their parametric dependence on time delay. Time delay is found to expand the range of possible phaselocked patterns and to contribute favorably toward their stability. The amplitude death state is studied in the parameter space of time delay and coupling strength. It is shown that death island regions can exist for any number of oscillators N in the presence of finite time delay. A particularly interesting result is that the size of an island is independent of N when N is even but is a decreasing function of N when N is odd.
description: 23 pages, 12 figures (3 of the figures in PNG format, separately from TeX); minor additions; typos corrected
Oxalis incarnata Linnaeus, 1753, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1753
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Oxalidales
Oxalidaceae
Oxalis
Oxalis incarnata

description: Oxalis incarnata, spec. nov.
5. Oxalis pedunculis unifloris, caule dichotomo.
 Oxalis caule bulbifero. Hort. cliff. 175. Roy. lugdb. 458.
 Oxys bulbosa aethiopica minor, folio cordato, flore ex albido purpurascente. Comm. hort.1. p.43. t.22.
 Habitat in AEthiopia . ♃
description: Published as part of Linnaeus, Carolus, 1753, Species plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas, Stockholm :Laurentius Salvius on pages 433-434, DOI: 10.5281/zenodo.3931989
Experimental test of the Gallavotti-Cohen fluctuation theorem in turbulent flows
Creators: name: Ciliberto, S.
name: Garnier, N.
name: Hernandez, S.
name: Pinton, C. Lacpatia J. -F.
name: Chavarria, G. Ruiz
Publisher: name: arXiv
Year: 2003
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We test the fluctuation theorem from measurements in turbulent flows. We study the time fluctuations of the force acting on an obstacle, and we consider two experimental situations: the case of a von Kármán swirling flow between counter-rotating disks (VK) and the case of a wind tunnel jet. We first study the symmetries implied by the Gallavotti-Cohen fluctuation theorem (FT) on the probability density distributions of the force fluctuations; we then test the Sinai scaling. We observe that in both experiments the symmetries implied by the FT are well verified, whereas the Sinai scaling is established, as expected, only for long times.
The Healing the Past by Nurturing the Future: cultural and emotional safety framework
Creators: name: Clark, Yvonne
name: Gee, Graham
name: Ralph, Naomi
name: Atkinson, Caroline
name: Brown, Stephanie
name: Glover, Karen
name: McLachlan, Helen
name: Gartland, Deirdre
name: Hirvoven, Tanja
name: Atkinson, Judith
name: Andrews, Shawana
name: Chamberlain, Catherine
Publisher: name: La Trobe
Year: 2022

description: No description supplied
title: Ð¤Ð°ÐºÑÐ¾ÑÑ ÑÐ´ÐµÑÐ½Ð¾Ð¹ Ð¼Ð¾Ð´Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¸ Ð´Ð»Ñ Ð»ÐµÐ³ÐºÐ¸Ñ Ð°Ð´ÑÐ¾Ð½Ð¾Ð² Ð² Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ðµ EPOS4
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Nuclear modification factors of light hadrons in EPOS4
Creators: name: Ð¨Ð°Ð¿Ð°ÐµÐ², ÐÐ¼Ð¸ÑÑÐ¸Ð¹
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2023
Subjects: ÑÑÐ¾Ð»ÐºÐ½Ð¾Ð²ÐµÐ½Ð¸Ñ ÑÑÐ¶ÐµÐ»ÑÑ Ð¸Ð¾Ð½Ð¾Ð²
ÑÐ°ÐºÑÐ¾ÑÑ ÑÐ´ÐµÑÐ½Ð¾Ð¹ Ð¼Ð¾Ð´Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¸
PHENIX
RHIC
Ð»ÐµÐ³ÐºÐ¸Ðµ Ð°Ð´ÑÐ¾Ð½Ñ
EPOS4
ÑÐ¸Ð·Ð¸ÐºÐ° Ð²ÑÑÐ¾ÐºÐ¸Ñ ÑÐ½ÐµÑÐ³Ð¸Ð¹
heavy ion collisions
nuclear modification factors
light hadrons
high energy physics

description: ÐÐ°Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° Ð¸Ð·ÑÑÐµÐ½Ð¸Ñ Ð¿ÑÐ¸Ð·Ð½Ð°ÐºÐ¾Ð² Ð¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¸ Ð¾Ð¿Ð¸ÑÐ°Ð½Ð¸Ñ ÑÐ²Ð¾Ð¹ÑÑÐ² ÐºÐ²Ð°ÑÐº-Ð³Ð»ÑÐ¾Ð½Ð½Ð¾Ð¹ Ð¿Ð»Ð°Ð·Ð¼Ñ (ÐÐÐ), ÐºÐ¾ÑÐ¾ÑÐ°Ñ Ð¿ÑÐ¸Ð²Ð¾Ð´Ð¸Ñ Ðº ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÐ¼ ÐºÐ¾Ð»Ð»ÐµÐºÑÐ¸Ð²Ð½ÑÐ¼ ÑÑÑÐµÐºÑÐ°Ð¼, Ð²Ð»Ð¸ÑÑÑÐ¸Ðµ Ð½Ð° Ð²ÑÑÐ¾Ð´ ÑÐ°ÑÑÐ¸Ñ. ÐÐÐ Ð¾Ð±ÑÐ°Ð·ÑÐµÑÑÑ Ð½Ð° Ð½ÐµÐ±Ð¾Ð»ÑÑÐ¸Ðµ Ð²ÑÐµÐ¼ÐµÐ½Ð° Ð½Ð° ÐºÐ¾Ð»Ð»Ð°Ð¹Ð´ÐµÑÐ°Ñ ÑÐµÐ»ÑÑÐ¸Ð²Ð¸ÑÑÑÐºÐ¸Ñ ÑÑÐ¶ÐµÐ»ÑÑ Ð¸Ð¾Ð½Ð¾Ð². ÐÐ¾Ð»Ð¸ÑÐµÑÑÐ²ÐµÐ½Ð½Ð¾Ðµ Ð¾Ð¿Ð¸ÑÐ°Ð½Ð¸Ðµ Ð´Ð°Ð½Ð½ÑÑ ÑÑÑÐµÐºÑÐ¾Ð² Ð¾Ð¿Ð¸ÑÑÐ²Ð°ÐµÑÑÑ Ð±Ð»Ð°Ð³Ð¾Ð´Ð°ÑÑ ÑÐ°ÐºÑÐ¾ÑÐ°Ð¼ ÑÐ´ÐµÑÐ½Ð¾Ð¹ Ð¼Ð¾Ð´Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¸ Ð² ÑÐ°Ð·Ð½ÑÑ ÐºÐ»Ð°ÑÑÐ°Ñ ÑÐµÐ½ÑÑÐ°Ð»ÑÐ½Ð¾ÑÑÐ¸ Ð´Ð»Ñ ÑÑÐ¾Ð»ÐºÐ½Ð¾Ð²ÐµÐ½Ð¸Ð¹ ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÑ ÑÐ´ÐµÑ Ð¿ÑÐ¸ ÑÐ½ÐµÑÐ³Ð¸Ð¸ â=200 ÐÑÐ. Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð¿ÑÐµÐ´ÑÑÐ°Ð²Ð»ÐµÐ½Ñ Ð¾ÑÐ½Ð¾ÑÐµÐ½Ð¸Ñ ÑÐ°Ð·Ð½Ð¾Ð·Ð°ÑÑÐ¶ÐµÐ½Ð½ÑÑ ÑÐ°ÑÑÐ¸Ñ Ð¾Ð´Ð½Ð¾Ð³Ð¾ ÑÐ¸Ð¿Ð° Ð¸ Ð¼ÐµÐ·Ð¾Ð½Ð¾Ð² Ð¿Ð¾ Ð¿Ð¾Ð¿ÐµÑÐµÑÐ½Ð¾Ð¼Ñ Ð¸Ð¼Ð¿ÑÐ»ÑÑÑ , Ð° ÑÐ°ÐºÐ¶Ðµ ÑÐ°ÐºÑÐ¾ÑÑ ÑÐ´ÐµÑÐ½Ð¾Ð¹ Ð¼Ð¾Ð´Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¸ Ð´Ð»Ñ Ð»ÐµÐ³ÐºÐ¸Ñ Ð°Ð´ÑÐ¾Ð½Ð¾Ð². Ð ÐµÐ·ÑÐ»ÑÑÐ°ÑÑ, Ð¿Ð¾Ð»ÑÑÐµÐ½Ð½ÑÐµ Ð² Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ðµ EPOS4, ÑÑÐ°Ð²Ð½Ð¸Ð»Ð¸ ÑÐ¾ Ð·Ð½Ð°ÑÐµÐ½Ð¸ÑÐ¼Ð¸ Ñ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ° PHENIX.
description: The given work is devoted to study signs of formation and description of the properties of quark-gluon plasma (QGP), which leads to various nuclear effects affecting the spectra of particles. QGP is formed for short time on relativistic heavy ion colliders. The quantitative description of these effects is described due to nuclear modification factors in different centrality classes for collisions of different nuclei at the energy of â=200 GeV. This paper presents the ratios of differently charged particles of the same type and mesons with respect to the transverse momentum , as well as nuclear modification factors of light hadrons. The results obtained in the EPOS4 were compared with the values from the PHENIX experiment.
Amplification of Cooper pair splitting current in a graphene based Cooper pair beam splitter geometry
Creators: name: Islam, SK Firoz
name: Saha, Arijit
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Motivated by the recent experiments [Scientific reports 6, 23051 (2016), Phys. Rev. Lett. 114, 096602 (2015)], we theoretically investigate Cooper pair splitting current in a graphene based Cooper pair beam splitter geometry. By considering the graphene based superconductor as an entangler device, instead of normal (2D) BCS superconductor, we show that the Cooper pair splitting current mediated by Crossed Andreev process is amplified compared to its normal superconductor counterpart. This amplification is attributed to the strong suppression of local normal Andreev reflection process (arising from the Cooper pair splitting) from the graphene based superconductor to lead via the same quantum dot, in comparison to the usual 2D superconductor. Due to the vanishing density of states at the Dirac point of undoped graphene, a doped graphene based superconductor is considered here and it is observed that Cooper pair splitting current is very insensitive to the doping level in comparison to the usual 2D superconductor. The transport process of non-local spin entangled electrons also depends on the type of pairing i.e. whether the electron-hole pairing is on-site, inter-sublattice or the combination of both. The inter-sublattice pairing of graphene causes the maximum non-local Cooper pair splitting current, whereas presence of both pairing reduces the Cooper pair splitting current.
description: This is the published version
Additional file 2: of Management of hypertension and multiple risk factors to enhance cardiovascular health in Singapore: The SingHypertension cluster randomized trial
Creators: name: Tazeen Jafar
name: Ngiap Tan
name: Allen, John
name: Finkelstein, Eric
name: Goh, Paul
name: Moey, Peter
name: Quah, Joanne
name: Siew Hwang
name: Bahadin, Juliana
name: Anandan Thiagarajah
name: Chan, Jason
name: Kang, Gary
name: Koong, Agnes
Publisher: name: figshare
Year: 2018
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Developmental Biology
subject: Science Policy

description: Treatment algorithm. (PDF 121 kb)
Cryptographic requirements for chaotic secure communications
Creators: name: Alvarez, Gonzalo
name: Li, Shujun
Publisher: name: arXiv
Year: 2003
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: In recent years, a great amount of secure communications systems based on chaotic synchronization have been published. Most of the proposed schemes fail to explain a number of features of fundamental importance to all cryptosystems, such as key definition, characterization, and generation. As a consequence, the proposed ciphers are difficult to realize in practice with a reasonable degree of security. Likewise, they are seldom accompanied by a security analysis. Thus, it is hard for the reader to have a hint about their security. In this work we provide a set of guidelines that every new cryptosystems would benefit from adhering to. The proposed guidelines address these two main gaps, i.e., correct key management and security analysis, to help new cryptosystems be presented in a more rigorous cryptographic way. Also some recommendations are offered regarding some practical aspects of communications, such as channel noise, limited bandwith, and attenuation.
description: 13 pages, 3 figures
Revealing and exploiting hierarchical material structure through complex atomic networks
Creators: name: Ahnert, Sebastian E.
name: Grant, William P.
name: Pickard, Chris J.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: One of the great challenges of modern science is to faithfully model, and understand, matter at a wide range of scales. Starting with atoms, the vastness of the space of possible configurations poses a formidable challenge to any simulation of complex atomic and molecular systems. We introduce a computational method to reduce the complexity of atomic configuration space by systematically recognising hierarchical levels of atomic structure, and identifying the individual components. Given a list of atomic coordinates, a network is generated based on the distances between the atoms. Using the technique of modularity optimisation, the network is decomposed into modules. This procedure can be performed at different resolution levels, leading to a decomposition of the system at different scales, from which hierarchical structure can be identified. By considering the amount of information required to represent a given modular decomposition we can furthermore find the most succinct descriptions of a given atomic ensemble. Our straightforward, automatic and general approach is applied to complex crystal structures. We show that modular decomposition of these structures considerably simplifies configuration space, which in turn can be used in discovery of novel crystal structures, and opens up a pathway towards accelerated molecular dynamics of complex atomic ensembles. The power of this approach is demonstrated by the identification of a possible allotrope of boron containing 56 atoms in the primitive unit cell, which we uncover using an accelerated structure search, based on a modular decomposition of a known dense phase of boron, $γ$-B$_{28}$.
description: 25 pages, 7 figures, data available from https://figshare.com/articles/Complex_atomic_networks_Ahnert_Grant_and_Pickard_2017/4780456, code available from https://www.mtg.msm.cam.ac.uk/Codes/AIRSS (see airss/examples/2.3 and 2.4)
Land Army memories of Jean Hulatt
Creators: name: Project Team, Their Finest Hour
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: The attached document provides an account of Jean Hulatt's experiences in the Land Army during World War II.
Oxalis violacea Linnaeus, 1753, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1753
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Oxalidales
Oxalidaceae
Oxalis
Oxalis violacea

description: Oxalis violacea, spec. nov.
6. Oxalis scapo umbellifero, foliis ternatis obcordatis.
 Oxalis caule aphyllo, flore purpureo, radice tuberosa rotunda. Gron. virg. 161.
 Oxys purpurea virginiana, radice lilii more nucleata. Pluk. alm. 274. t.102. f.4.
 Habitat in Virginia , Canada . ♃
description: Published as part of Linnaeus, Carolus, 1753, Species plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas, Stockholm :Laurentius Salvius on page 434, DOI: 10.5281/zenodo.3931989
Breaking a secure communication scheme based on the phase synchronization of chaotic systems
Creators: name: Alvarez, G.
name: Montoya, F.
name: Pastor, G.
name: Romera, M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: A security analysis of a recently proposed secure communication scheme based on the phase synchronization of chaotic systems is presented. It is shown that the system parameters directly determine the ciphertext waveform, hence it can be readily broken by parameter estimation of the ciphertext signal.
description: 4 pages, 6 figures
Breaking parameter modulated chaotic secure communication system
Creators: name: Alvarez, G.
name: Montoya, F.
name: Romera, M.
name: Pastor, G.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: This paper describes the security weakness of a recently proposed secure communication method based on parameter modulation of a chaotic system and adaptive observer-based synchronization scheme. We show that the security is compromised even without precise knowledge of the chaotic system used.
description: 8 pages, 3 figures, latex format
Oxalis pes-caprae Linnaeus, 1753, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1753
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Oxalidales
Oxalidaceae
Oxalis
Oxalis pes-Caprae

description: Oxalis pes-caprae, spec. nov.
7. Oxalis scapo umbellifero, foliis ternatis bipartitis.
 Oxalis bulbosa pentaphylla & hexaphylla, floribus magnis luteis & copiosis. Burm. afr. 80. t.29.
 Habitat in AEthiopia . ♃
description: Published as part of Linnaeus, Carolus, 1753, Species plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas, Stockholm :Laurentius Salvius on page 434, DOI: 10.5281/zenodo.3931989
Cryptanalysis of a novel cryptosystem based on chaotic oscillators and feedback inversion
Creators: name: Alvarez, G.
name: Hernandez, L.
name: Montoya, F.
name: Munoz, J.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: An analysis of a recently proposed cryptosystem based on chaotic oscillators and feedback inversion is presented. It is shown how the cryptosystem can be broken when Duffing's oscillator is considered. Some implementation problems of the system are also discussed.
description: 9 pages, 3 figures, latex format
Classifying optimal binary subspace codes of length 8, constant dimension 4 and minimum distance 6
Creators: name: Heinlein, Daniel
name: Honold, Thomas
name: Kiermaier, Michael
name: Kurz, Sascha
name: Wassermann, Alfred
Publisher: name: arXiv
Year: 2017
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 51E20, 11T71, 94B25

description: The maximum size $A_2(8,6;4)$ of a binary subspace code of packet length $v=8$, minimum subspace distance $d=6$, and constant dimension $k=4$ is $257$, where the $2$ isomorphism types are extended lifted maximum rank distance codes. In finite geometry terms the maximum number of solids in $\operatorname{PG}(7,2)$, mutually intersecting in at most a point, is $257$. The result was obtained by combining the classification of substructures with integer linear programming techniques. This implies that the maximum size $A_2(8,6)$ of a binary mixed-dimension code of packet length $8$ and minimum subspace distance $6$ is $257$ as well.
description: 17 pages, 3 tables