cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Discrete phase space and continuous time relativistic quantum mechanics II: Peano circles, hyper-tori phase cells, and fibre bundles
Creators: name: Das, Anadijiban
name: Chatterjee, Rupak
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The discrete phase space and continuous time representation of relativistic quantum mechanics is further investigated here as a continuation of paper I [1]. The main mathematical construct used here will be that of an area-filling Peano curve. We show that the limit of a sequence of a class of Peano curves is a Peano circle denoted as $\bar{S}^{1}_{n}$, a circle of radius $\sqrt{2n+1}$ where $n \in \{0,1,\cdots\}$. We interpret this two-dimensional Peano circle in our framework as a phase cell inside our two-dimensional discrete phase plane. We postulate that a first quantized Planck oscillator, being very light, and small beyond current experimental detection, occupies this phase cell $\bar{S}^{1}_{n}$. The time evolution of this Peano circle sweeps out a two-dimensional vertical cylinder analogous to the world-sheet of string theory. Extending this to three dimensional space, we introduce a $(2+2+2)$-dimensional phase space hyper-tori $\bar{S}^{1}_{n^1} \times \bar{S}^{1}_{n^2} \times \bar{S}^{1}_{n^3}$ as the appropriate phase cell in the physical dimensional discrete phase space. A geometric interpretation of this structure in state space is given in terms of product fibre bundles. We also study free scalar Bosons in the background $[(2+2+2)+1]$-dimensional discrete phase space and continuous time state space using the relativistic partial difference-differential Klein-Gordon equation. The second quantized field quantas of this system can cohabit with the tiny Planck oscillators inside the $\bar{S}^{1}_{n^1} \times \bar{S}^{1}_{n^2} \times \bar{S}^{1}_{n^3}$ phase cells for eternity. Finally, a generalized free second quantized Klein-Gordon equation in a higher $[(2+2+2)N+1]$-dimensional discrete state space is explored. The resulting discrete phase space dimension is compared to the significant spatial dimensions of some of the popular models of string theory.
description: 22 pages, 11 figures; minor typos corrected and extra comments added about Peano circles and quantum gravity
MPEC 2023-P35 : COMET P/2015 XG422 (PANSTARRS)
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: COMET P/2015 XG422 (PANSTARRS)

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.
Evaluation of Pro-Inflammatory Cytokines Expression in Mouse Splenocyte Cells After Incubation with the Biofield Energy Based Herbomineral Formulation
Creators: name: Patric, Elizabeth
Publisher: name: SMN - The ScienceMedia Network
Year: 2019
Subjects: Natural Sciences

description: The use of herbomineral formulations in the healthcare sector has increased due to their high safety and better therapeutic action. A new proprietary herbomineral formulation was formulated with a combination of the herbal root extract ashwagandha and minerals viz. zinc, magnesium, and selenium. The aim of the study was to evaluate the immunomodulatory potential of Biofield Energy Healing (The Trivedi Effect®) on the test formulation in splenocytes. The test formulation was divided into two parts; one was the control without the Biofield Energy Treatment, while the other part was defined as the Biofield Energy Treated sample, which received the Biofield Energy Healing Treatment remotely by seven renowned Biofield Energy Healers. The MTT assay showed that the test formulation exhibited safe concentrations up to 1.053 µg/mL with cell viability ranging from 88.19% to 110.30% in the Biofield Energy Treated sample. The Biofield Energy Healing significantly enhanced the cell viability as compared with the untreated test formulation. The expression of TNF-α was significantly inhibited by 7.23% at 1.053 µg/mL in the Biofield Energy Treated test formulation compared with the vehicle control. The level of TNF-α was significantly decreased by 3.90%, 11.74%, 3.12%, and 9.17% at 0.001053, 0.01053, 0.1053 and 1.053 µg/mL, respectively in the Biofield Energy Treated test formulation compared with the untreated test formulation. Additionally, the expression of IL-1β was significantly reduced by 28.98%, 51.23%, 53.06%, 48.98%, 55.71%, and 59.10% at 0.00001053, 0.0001053, 0.001053, 0.01053, 0.1053, and 1.053 µg/mL, respectively in the Biofield Energy Treated test formulation compared with the vehicle control. Further, the Biofield Treated test formulation showed significant reduction of IL-1β by 35.07% (p≤0.05), 47.46% (p≤0.05), and 57.51% (p≤0.01) at 0.001053, 0.1053, and 1.053 µg/mL, respectively compared with the untreated test formulation. Similarly, the MIP-1α expression was inhibited by the Biofield Energy Treated formulation and showed immunosuppressive activity at 0.00001053, 0.0001053, 0.001053, and 0.01053 µg/mL by 19.38%, 24.97%, 31.23%, and 25.41%, respectively compared with the vehicle control group. The Biofield Treated test formulation significantly (p0.001) reduced the MIP-1α expression by 19.33%, 22.57%, and 30.50% at 0.0001053, 0.001053, and 0.01053 µg/mL, respectively compared with the untreated test formulation. Overall, The Trivedi Effect® - Biofield Energy Healing (TEBEH) significantly down-regulated the pro-inflammatory cytokines and potentiated the immunosuppressive effect of the Biofield Energy Treated test formulation, which can be better utilized for organ transplants, autoimmune diseases, inflammatory disorders, anti-aging, stress management, overall health and quality of life, etc.
On the operator norm of a Hermitian random matrix with correlated entries
Creators: name: Reker, Jana
Publisher: name: arXiv
Year: 2021
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: We consider a correlated $N\times N$ Hermitian random matrix with a polynomially decaying metric correlation structure. By calculating the trace of the moments of the matrix and using the summable decay of the cumulants, we show that its operator norm is stochastically dominated by one.
description: Updated to match accepted manuscript, 2 mistyped estimates corrected
ALFOSC at the NOT: a successful loan
Creators: name: Marquez, Isabel
Publisher: name: Zenodo
Year: 2022

description: The Alhambra Faint Object Spectrograph and Camera, ALFOSC, is provided by the Instituto de Astrofisica de Andalucia (IAA) under a joint agreement with the University of Copenhagen and NOT. With a field of view of 6.4 x 6.4 arcminutes in imaging mode, it can also be used for low/medium resolution spectroscopy, and polarimetry. In this talk I present a selection of scientific results to which ALFOSC has contributed in the last years, and that demonstrate the success of the combination of instrument and telescope.
Extension: Reverse causality in temporal order effect
Creators: name: Chandrashekar, Subramanya Prasad
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology
subject: Organization Development
subject: Temporal order effect
subject: Counterfactual thinking
subject: Temporality effect

description: Earlier studies on the temporal order effect have shown a tendency to view the latter events as more mutable in a series of two independent chance events. The perceived mutability of events affects participants' judgments of guilt as they tend to ascribe it to the individual associated with the later event. The current extension aims to test the reversibility of temporal order effects.
Momentum-dependent two-loop QCD corrections to the neutral Higgs-boson masses in the MSSM
Creators: name: Borowka, S.
name: Hahn, T.
name: Heinemeyer, S.
name: Heinrich, G.
name: Hollik, W.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Results are presented for the momentum dependent two-loop contributions of O(alpha_t alpha_s) to the masses and mixing effects in the Higgs sector of the MSSM. They are obtained in the Feynman-diagrammatic approach using a mixed on-shell/DRbar renormalization that can directly be matched onto the higher-order corrections included in the code FeynHiggs. The new two-loop diagrams are evaluated with the program SecDec. The combination of the new momentum dependent two-loop contribution with the existing one- and two-loop corrections in the on-shell/DRbar scheme leads to an improved prediction of the light MSSM Higgs boson mass and a correspondingly reduced theoretical uncertainty. We find that the corresponding shifts in the lightest Higgs-boson mass M_h are below 1 GeV in all scenarios considered, but can extend up to the level of the current experimental uncertainty. The results are included in the code FeynHiggs.
description: 27 pages, 12 figures, replaced by published version, imaginary parts updated, conclusions unchanged
Reconciling the cosmic age problem in the R_h=ct Universe
Creators: name: Yu, H.
name: Wang, F. Y.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Many dark energy models fail to pass the cosmic age test. In this paper, we investigate the cosmic age problem associated with nine extremely old Global Clusters (GCs) and the old quasar APM $08279+5255$ in the $R_h=ct$ Universe. The age data of these oldest GCs in M31 is acquired from the Beijing-Arizona-Taiwan-Connecticut system with up-to-date theoretical synthesis models. They have not been used to test the cosmic age problem in the $R_h=ct$ Universe in previous literature. By evaluating the age of the $R_h=ct$ Universe with the observational constraints from the type Ia supernovae and Hubble parameter, we find that the $R_h=ct$ Universe can accommodate five GCs and the quasar APM 08279+5255 at redshift $z=3.91$. But for other models, such as $Λ$CDM, interacting dark energy model, generalized Chaplygin gas model and holographic dark energy model, can not accommodate all GCs and the quasar APM 08279+5255. It is worthwhile to note that the age estimates of some GCs are controversial. So, unlike other cosmological models, the $R_h=ct$ Universe can marginally solve the cosmic age problem, especially at high redshift.
description: 12 pages, 4 figures, 2 tables, accepted for publication in EPJC
Efficient optimal non-Gaussian CMB estimators with polarisation
Creators: name: Fergusson, J. R.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In this paper we demonstrate an efficient method for including both CMB temperature and polarisation data in optimal non-Gaussian estimators. The method relies on orthogonalising the multipoles of the temperature and polarisation maps and results in a reduction by a factor of over 3 the terms required to calculate the estimator. The method is illustrated with the modal method applied to bispectrum estimation via the CMB with the trispectrum included as an appendix. However, the method is quite general and can be applied to any optimal bispectrum or trispectrum estimator including the KSW, binned and wavelet approaches. It would also be applicable to any situation where multiple data sets with known correlations are being considered.
description: Added section on simulations
LOYIHA BUDJETI VA UNING IJROSINI TA'MINLASH YO'NALISHLARI
Creators: name: Xamidov, Odil
Publisher: name: Zenodo
Year: 2023

description: Loyiha budjeti loyiha menejerlari tomonidan loyihaning umumiy qiymatini baholash uchun foydalaniladigan vositadir.  Loyiha budjeti shablonida loyiha tugaguniga qadar yuzaga kelishi mumkin bo'lgan barcha xarajatlarning batafsil hisob-kitobi mavjud. Loyiha byudjetining o'zi dinamik hujjatdir.  Loyiha davomida u doimiy ravishda yangilanadi.
title: Контроль функционального состояния квалифицированных биатлонисток на основе определения вариабельности сердечного ритма
title: Monitoring of Functional Status of Qualified Biathlonists Based on Evaluation of Heart Rate Variability
Creators: name: Иванов, Дмитрий Игоревич
name: Знакова, Илона Олеговна
Publisher: name: Издательский центр СурГУ
Year: 2022

description: На основании проведенного исследования доказана необходимость контроля
за функциональным состоянием спортсмена в период подготовки к главным соревнованиям за счет
возможности выбора рационального пути по повышению спортивно-технического мастерства и снижению отрицательных тренировочных эффектов. Продемонстрированы индивидуальные и средне-
статистические показатели вариабельности сердечного ритма квалифицированных биатлонисток
в соревновательном сезоне 2021/2022, полученные при помощи аппарата «Варикард 2.5.1» и про-
граммы «Эским – 6». Отражена необходимость по коррекции тренировочного процесса спортсменов
при неадекватной реакции на нагрузку. Представлены практические рекомендации по осуществлению подготовки квалифицированных биатлонисток в соревновательном периоде, а также результаты
соревновательной деятельности спортсменок в спринтерских дисциплинах (в виде количества секунд,
проигранных лидеру).
description: Based on the results of the conducted research, the necessity of monitoring of an athlete
functional status during preparation for the main competitions by choosing an efficient way for improvement
of sports and technical skills and reduction of negative training effects is proved. Individual and overall average
indicators of heart rate variability of qualified biathlonists in competitions of 2021/2022 are demonstrated
in the article. The data were obtained using Varikard 2.5.1 device and Eskim – 6 software. A tendency for correcting the training process of athletes with an inadequate response to the load is highlighted in the article.
Practical recommendations for preparation of qualified biathlonists in the competition period are given. Also,
the results of competitive activity of athletes in sprint are presented as the number of seconds lost to the leader.
Alcohol and creative work, part 1: Painters.
Creators: name: No Name Supplied
Publisher: name: No Publisher Supplied
Year: 1946

description: The title "Alcohol and creative work" was listed as 'In preparation' to be included among the Memoirs series, but was apparently never added. However, in 1946, Dr. Roe published "Alcohol and creative work, part 1: Painters," in the Quarterly Journal of Studies on Alcohol, which may have been the result of that study. No further installments in this series were published.
Bethe Ansatz for Yangian Invariants: Towards Super Yang-Mills Scattering Amplitudes
Creators: name: Frassek, Rouven
name: Kanning, Nils
name: Ko, Yumi
name: Staudacher, Matthias
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mathematical Physics (math-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We propose that Baxter's Z-invariant six-vertex model at the rational gl(2) point on a planar but in general not rectangular lattice provides a way to study Yangian invariants. These are identified with eigenfunctions of certain monodromies of an auxiliary inhomogeneous spin chain. As a consequence they are special solutions to the eigenvalue problem of the associated transfer matrix. Excitingly, this allows to construct them using Bethe ansatz techniques. Conceptually, our construction generalizes to general (super) Lie algebras and general representations. Here we present the explicit form of sample invariants for totally symmetric, finite-dimensional representations of gl(n) in terms of oscillator algebras. In particular, we discuss invariants of three- and four-site monodromies that can be understood respectively as intertwiners of the bootstrap and Yang-Baxter equation. We state a set of functional relations significant for these representations of the Yangian and discuss their solutions in terms of Bethe roots. They arrange themselves into exact strings in the complex plane. In addition, it is shown that the sample invariants can be expressed analogously to Grassmannian integrals. This aspect is closely related to a recent on-shell formulation of scattering amplitudes in planar N=4 super Yang-Mills theory.
description: 56 pages, 14 figures; v2: appendix B added, references updated and typos fixed; v3: published version
Bess Meredyth
Creators: Sturtevant, Victoria
Publisher: name: Columbia University
Year: 2013
Subjects: Women in the motion picture industry
Motion pictures
Silent films

description: Bess Meredyth is mentioned in nearly every account of women screenwriters of the silent era, but very few details about her work seem to make it into print. The richest source for information about this extremely prominent screenwriter is Eighty Odd Years in Hollywood, the autobiography of Meredyth’s son, John Meredyth Lucas. This text, too, however, leaves large gaps in detail and in the chronology of the author’s mother’s career, and the son reflects: “It, unfortunately, never seemed important that I learn Mother’s early history. She never wrote it, only mentioned a few disconnected anecdotes. I never asked. By the time the questions were formed, the answers had died” (19).
Grant proposal: Unite initiatives and expand the scope of current open source for open science
Creators: name: Invest In Open Infrastructure
Publisher: name: Zenodo
Year: 2019
Subjects: grant proposals
open infrastructure
scholarly communication
open science

description: Grant proposal submitted by Invest in Open Infrastructure to the Alfred P. Sloan Foundation in 2019-10. From the proposal summary: "Proposed activities include collecting and synthesizing information about, and analyses of, open infrastructure efforts and activities around the globe to inform up-to-date landscape analyses, best practices guidelines, and other resources targeted at stakeholders (infrastructure projects, institutions, and funding bodies). Expected products include reports on the state of open scholarly infrastructure, guidelines and recommendations for stakeholder groups, and groundwork for the establishment of a fund dedicated to this work." Pages 7-8 (detailed budget) and pages 13-22 (resumes) of the original submitted proposal have been removed from this public version per IOI's privacy policy.
title: Création d’indicateurs économiques à partir du descriptif technique contenu dans les enquêtes Pratiques Culturales (PK)
Creators: name: Fayolle, Benjamin
name: Peyrard, Thibault
name: Reboud, Xavier
Publisher: name: INRAE
Year: 2023

description: Nous avons construit et rédigé cette note méthodologique face au constat d’un déficit de lien direct possible entre un itinéraire de conduite tel que pratiqué par un agriculteur et un bilan économique adossé au déroulé qui a été retenu. On sait pourtant que la question de la rentabilité entre dans beaucoup de décisions des agriculteurs et que les sources d’inconnues sont multiples : à quel prix vendra-t-il sa production et qu’en sera le niveau ? Comment anticiper ce qu’il faut provisionner pour couvrir des pannes sur les équipements, quelle part des bénéfices ne se verra que l’année suivante ou selon ce qui sera fait par ailleurs ? etc. Notre volonté était donc de mettre en place une procédure lourde à établir mais simple ensuite d’utilisation, où des informations issues de différentes sources soient rapprochées : contenu des enquêtes sur les pratiques culturales d’Agreste, enregistrement des pratiques du réseau des fermes Dephy dans le Système d’Information Agrosyst, référentiels de prix pratiqués en agriculture et barèmes d’entraide agricole. Nous décortiquons dans ce document comment les calculs ont été fait et illustrons son utilisation. Le document laisse une large place aux figures et tableaux synthétiques. Nous revenons enfin sur l’apport de cette approche pour comparer différentes conduites menant à des choix souvent contrastés pour les agriculteurs comme passer d’une conduite conventionnelle à une conduite en AB. Une retombée de ce travail est aussi de permettre sur des effectifs importants d’approcher la valeur qu’il faudrait fixer à une aide financière ou à une unité de production pour orienter les choix des agriculteurs.
FRIGG project update: Fresh Human Kidney Tissue: Exploring Biomarkers and Intervention Targets in Chronic Kidney Disease
Creators: name: Nørregaard, Rikke
name: Nejsum, Lene N.
Publisher: name: Zenodo
Year: 2022
Subjects: chronic kidney disease
model
kidney
human tissue

description: This is a recorded talk with heads of the FRIGG project - Lene N. Nejsum and Rikke Nørregaard, where they present the latest project progress. The talk was given at one of ODIN's (the Open Discovery Innovation Network) Knowledge Sharing Events in November 2022.
description: ODIN is funded by the Novo Nordisk Foundation (grant number NNF20SA0061466)
Energy Decay Network (EDeN)
Creators: name: Shelley, Jamie Nicholas
name: Consultancy, Optishell
Publisher: name: arXiv
Year: 2021
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: This paper and accompanying Python and C++ Framework is the product of the authors perceived problems with narrow (Discrimination based) AI. (Artificial Intelligence) The Framework attempts to develop a genetic transfer of experience through potential structural expressions using a common regulation/exchange value (energy) to create a model whereby neural architecture and all unit processes are co-dependently developed by genetic and real time signal processing influences; successful routes are defined by stability of the spike distribution per epoch which is influenced by genetically encoded morphological development biases.These principles are aimed towards creating a diverse and robust network that is capable of adapting to general tasks by training within a simulation designed for transfer learning to other mediums at scale.
Effect of Biofield Energy Healing Based Herbomineral Formulation on Pro-inflammatory Cytokines Expression in Biofield Treated Mouse Splenocyte Cells
Creators: name: Patric, Elizabeth
Publisher: name: SMN - The ScienceMedia Network
Year: 2019
Subjects: Natural Sciences

description: A proprietary herbomineral formulation was formulated with four ingredients; a mixture of the minerals (zinc, magnesium, and selenium) and the herbal root extract ashwagandha. The aim of the study was to evaluate the immunomodulatory potential of Biofield Energy Healing (The Trivedi Effect®) on the herbomineral formulation in splenocyte cells, which were isolated from Biofield Treated mice. The test formulation was divided into two parts. One part was denoted as the control without any Biofield Energy Treatment, while the other part was defined as the Biofield Energy Treated sample, which received the Biofield Energy Healing Treatment remotely from seven renowned Biofield Energy Healers. The splenocyte cells were treated with the test formulation at concentrations ranges from 0.00001053 to 10.53 µg/mL and analyzed after 48 hours of treatment by MTT assay. The cell viability data showed safe concentrations up to 1.053 µg/mL with viability ranges from 69.22% to 123.88% in the test formulation groups. The expression of TNF-α was decreased by 4.82% at 1.053 µg/mL in the Biofield Energy Treated test formulation compared with the vehicle control. The level of TNF-α was significantly decreased by 2.02%, 4.92%, and 18.78% at 0.00001053, 0.001053, and 1.053 µg/mL, respectively in the Biofield Energy Treated test formulation group as compared to the untreated test formulation. The expression of IL-1β was significantly reduced by 83.65%, 92.15%, 27.30%, and 41.88% at 0.00001053, 0.0001053, 0.001053, and 1.053 µg/mL, respectively in the Biofield Energy Treated test formulation compared with the vehicle control. The Biofield Treated test formulation showed significant reduction of IL-1β by 17.26%, 92.61% (p≤0.001), 34.62% (p≤0.05), and 16.13% at 0.00001053, 0.0001053, 0.001053, and 1.053 µg/mL, respectively compared with the untreated test formulation. Additionally, the expression of chemokine MIP-1α was significantly reduced by 17.03%, 10.99%, 22.33%, 24.21%, 21.61%, and 30.67% at 0.00001053, 0.0001053, 0.001053, 0.01053, 0.1053, and 1.053 µg/mL, respectively in the Biofield Treated test formulation compared with the vehicle control. The MIP-1α expression was significantly reduced by 19.32% and 12.56% at 0.01053 and 0.1053 µg/mL, respectively in the Biofield Treated test formulation compared with the untreated test formulation. The overall results demonstrated that the Biofield Energy Treated test formulation significantly down-regulated the expression of TNF-α, IL-1β, and MIP-1α in the Biofield Treated mice splenocyte cells compared to the untreated test formulation. These data suggest that the Biofield Treated test formulation can be used for autoimmune and inflammatory diseases, stress management and anti-aging by improving overall health.
Katalytische Hydrodeoxygenierungen von Lignin-stämmigen Ausgangsmaterialien
Creators: name: Hummel, Christin
Publisher: name: Universität Rostock
Year: 2018
Subjects: subject: 500 Natural sciences
subject: 540 Chemistry & allied sciences

description: Diese Arbeit befasst sich mit der Evaluierung der Leistungsfähigkeit eines bifunktionalen nickelhaltigen Katalysators für die HDO von Lignin-stämmigen Ausgangsmaterialien. Der Katalysator vermag effektiv die Modellverbindungen des Lignins Phenol, Guajacol und 2-(2-Methoxyphenoxy)-1-phenylethanon sowie die Lignin-stämmigen Ausgangsmaterialien Pyrolyseöl, Organosolv Lignin und vorbehandelte Schwarzlauge zu deoxygenieren. Durch Begleituntersuchungen zur Katalysatorvergiftung und zu prozessbedingten Einflussfaktoren wurden Einschränkungen im Einsatzbereich des Katalysators identifiziert.
Non-relativistic Nambu-Goldstone modes associated with spontaneously broken space-time and internal symmetries
Creators: name: Kobayashi, Michikazu
name: Nitta, Muneto
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Materials Science (cond-mat.mtrl-sci)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show that a momentum operator of a translational symmetry may not commute with an internal symmetry operator in the presence of a topological soliton in non-relativistic theories. As a striking consequence, there appears a coupled Nambu-Goldstone mode with a quadratic dispersion consisting of translational and internal zero modes in the vicinity of a domain wall in an O(3) sigma model, a magnetic domain wall in ferromagnets with an easy axis.
description: 13 pages (including Supplemental Material), 1 figure, 3 mpg files (relativistic NG modes for translation and phase, and coupled type-II NG mode), v2: the same text, mpg files added, v3: added discussion on interpolation between relativistic and non-relativistic NG modes, published version
Electrons in deterministic quasicrystalline potentials and hidden conserved quantities
Creators: name: Kalugin, Pavel
name: Katz, André
Publisher: name: arXiv
Year: 2014
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We propose an ansatz for the wave function of a non-interacting quantum particle in a deterministic quasicrystalline potential. It is applicable to both continuous and discrete models and includes Sutherland's hierarchical wave function as a special case. The ansatz is parameterized by a first cohomology class of the hull of the structure. The structure of the ansatz and the values of its parameters are preserved by the time evolution. Numerical results suggest that the ground states of the standard vertex models on Ammann-Beenker and Penrose tilings belong to this class of functions. This property remains valid for the models perturbed within their MLD class, e.g. by adding links along diagonals of rhombi. The convergence of the numerical simulations in a finite patch of the tiling critically depends on the boundary conditions, and can be significantly improved when the choice of the latter respects the structure of the ansatz.
description: 31 pages, 10 figures
Transverse target single-spin asymmetry in inclusive electroproduction of charged pions and kaons
Creators: name: "THE HERMES", Collaboration
name: Schäfer, Andreas
Publisher: name: Universität Regensburg
Year: 2013
Subjects: subject: 530 Physik

description: Single-spin asymmetries were investigated in inclusive electroproduction of charged pions and kaons from transversely polarized protons at the HERMES experiment. The asymmetries were studied as a function of the azimuthal angle ψ about the beam direction between the target-spin direction and the hadron production plane, the transverse hadron momentum relative to the direction of the incident beam, and the Feynman variable xF. The sin(ψ) amplitudes are positive for positive pions and kaons, slightly negative for negative pions and consistent with zero for negative kaons, with particular transverse-momentum but weak xF dependences. Especially large asymmetries are observed for two small subsamples of events, where also the scattered electron was recorded by the spectrometer.
Physics-informed neural networks for the shallow-water equations on the sphere
Creators: name: Bihlo, Alex
name: Popovych, Roman O.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: Numerical Analysis (math.NA)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: 68T07, 76U60, 86A10

description: We propose the use of physics-informed neural networks for solving the shallow-water equations on the sphere in the meteorological context. Physics-informed neural networks are trained to satisfy the differential equations along with the prescribed initial and boundary data, and thus can be seen as an alternative approach to solving differential equations compared to traditional numerical approaches such as finite difference, finite volume or spectral methods. We discuss the training difficulties of physics-informed neural networks for the shallow-water equations on the sphere and propose a simple multi-model approach to tackle test cases of comparatively long time intervals. Here we train a sequence of neural networks instead of a single neural network for the entire integration interval. We also avoid the use of a boundary value loss by encoding the boundary conditions in a custom neural network layer. We illustrate the abilities of the method by solving the most prominent test cases proposed by Williamson et al. [J. Comput. Phys. 102 (1992), 211-224].
description: 24 pages, 9 figures, 1 tables, minor extensions
Admissible transformations and Lie symmetries of linear systems of second-order ordinary differential equations
Creators: name: Boyko, Vyacheslav M.
name: Lokaziuk, Oleksandra V.
name: Popovych, Roman O.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 34C14 (Primary) 34A30, 34A26 (Secondary)

description: We revisit the results on admissible transformations between normal linear systems of second-order ordinary differential equations with an arbitrary number of dependent variables under several appropriate gauges of the arbitrary elements parameterizing these systems. For each class from the constructed chain of nested gauged classes of such systems, we single out its singular subclass, which appears to consist of systems being similar to the elementary (free particle) system whereas the regular subclass is the complement of the singular one. This allows us to exhaustively describe the equivalence groupoids of the above classes as well as of their singular and regular subclasses. Applying various algebraic techniques, we establish principal properties of Lie symmetries of the systems under consideration and outline ways for completely classifying these symmetries. In particular, we compute the sharp lower and upper bounds for the dimensions of the maximal Lie invariance algebras possessed by systems from each of the above classes and subclasses. We also show how equivalence transformations and Lie symmetries can be used for reduction of order of such systems and their integration. As an illustrative example of using the theory developed, we solve the complete group classification problems for all these classes in the case of two dependent variables.
description: 51 pages, minor extensions
A Heuristic Technique for an Efficient Decision Support in Context-aware Service Selection
Creators: name: Lewerenz, Lars
Publisher: name: Universität Regensburg
Year: 2015
Subjects: subject: Context-aware, context interdependencies, service selection, decomposition of constraints, local selection
subject: 330 Wirtschaft

description: In service-oriented systems, context information can be used to select a variety of services to support the execution of processes. Yet, context information causes interdependencies between services, in the sense that they are evaluated differently – regarding their utility and feasibility - when being composed with other services. Such context interdependencies have not been sufficiently addressed by research so far, as approaches either disregard them or propose exact solutions which are hardly applicable due to high time complexity of the selection problem. To alleviate this drawback, we present a heuristic technique considering context interdependencies. In particular, this technique consists of an approach to decompose end-to-end constraints together with a local selection approach. Our evaluation, by means of a real-world data, shows that this technique achieves close to optimal selection results at a fraction of the computation time of an exact solution and thus contributes to an efficient decision support.
Accelerated Randomized Benchmarking
Creators: name: Granade, Christopher
name: Ferrie, Christopher
name: Cory, D. G.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum information processing offers promising advances for a wide range of fields and applications, provided that we can efficiently assess the performance of the control applied in candidate systems. That is, we must be able to determine whether we have implemented a desired gate, and refine accordingly. Randomized benchmarking reduces the difficulty of this task by exploiting symmetries in quantum operations. Here, we bound the resources required for benchmarking and show that, with prior information, we can achieve several orders of magnitude better accuracy than in traditional approaches to benchmarking. Moreover, by building on state-of-the-art classical algorithms, we reach these accuracies with near-optimal resources. Our approach requires an order of magnitude less data to achieve the same accuracies and to provide online estimates of the errors in the reported fidelities. We also show that our approach is useful for physical devices by comparing to simulations. Our results thus enable the application of randomized benchmarking in new regimes, and dramatically reduce the experimental effort required to assess control fidelities in quantum systems. Finally, our work is based on open-source scientific libraries, and can readily be applied in systems of interest.
description: 10 pages, full source code at https://github.com/cgranade/accelerated-randomized-benchmarking #quantuminfo #benchmarking
IMPAD project update: Immune-related biomarkes and targets in parkinson's disease
Creators: name: Romero-Ramos, Marina
Publisher: name: Zenodo
Year: 2022
Subjects: parkinson's disease
immune system
biomarkers
drug targets

description: This is a recorded talk with head of the IMPAD project - Marina Romero-Ramos, where she presents the latest project progress. The talk was given at one of ODIN's (the Open Discovery Innovation Network) Knowledge Sharing Events in November 2022.
description: ODIN is funded by the Novo Nordisk Foundation (grant number NNF20SA0061466)
STE-QUEST - Test of the Universality of Free Fall Using Cold Atom Interferometry
Creators: name: Aguilera, D.
name: Ahlers, H.
name: Battelier, B.
name: Bawamia, A.
name: Bertoldi, A.
name: Bondarescu, R.
name: Bongs, K.
name: Bouyer, P.
name: Braxmaier, C.
name: Cacciapuoti, L.
name: Chaloner, C.
name: Chwalla, M.
name: Ertmer, W.
name: Franz, M.
name: Gaaloul, N.
name: Gehler, M.
name: Gerardi, D.
name: Gesa, L.
name: Gürlebeck, N.
name: Hartwig, J.
name: Hauth, M.
name: Hellmig, O.
name: Herr, W.
name: Herrmann, S.
name: Heske, A.
name: Hinton, A.
name: Ireland, P.
name: Jetzer, P.
name: Johann, U.
name: Krutzik, M.
name: Kubelka, A.
name: Lämmerzahl, C.
name: Landragin, A.
name: Lloro, I.
name: Massonnet, D.
name: Mateos, I.
name: Milke, A.
name: Nofrarias, M.
name: Oswald, M.
name: Peters, A.
name: Posso-Trujillo, K.
name: Rasel, E.
name: Rocco, E.
name: Roura, A.
name: Rudolph, J.
name: Schleich, W.
name: Schubert, C.
name: Schuldt, T.
name: Seidel, S.
name: Sengstock, K.
name: Sopuerta, C. F.
name: Sorrentino, F.
name: Summers, D.
name: Tino, G. M.
name: Trenkel, C.
name: Uzunoglu, N.
name: von Klitzing, W.
name: Walser, R.
name: Wendrich, T.
name: Wenzlawski, A.
name: Weßels, P.
name: Wicht, A.
name: Wille, E.
name: Williams, M.
name: Windpassinger, P.
name: Zahzam, N.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Atomic Physics (physics.atom-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: The theory of general relativity describes macroscopic phenomena driven by the influence of gravity while quantum mechanics brilliantly accounts for microscopic effects. Despite their tremendous individual success, a complete unification of fundamental interactions is missing and remains one of the most challenging and important quests in modern theoretical physics. The STE-QUEST satellite mission, proposed as a medium-size mission within the Cosmic Vision program of the European Space Agency (ESA), aims for testing general relativity with high precision in two experiments by performing a measurement of the gravitational redshift of the Sun and the Moon by comparing terrestrial clocks, and by performing a test of the Universality of Free Fall of matter waves in the gravitational field of Earth comparing the trajectory of two Bose-Einstein condensates of Rb85 and Rb87. The two ultracold atom clouds are monitored very precisely thanks to techniques of atom interferometry. This allows to reach down to an uncertainty in the Eötvös parameter of at least 2x10E-15. In this paper, we report about the results of the phase A mission study of the atom interferometer instrument covering the description of the main payload elements, the atomic source concept, and the systematic error sources.
description: 21 pages, 5 figures
Programmable Control of Protein Activity Via Formation of Biomolecular Condensates in Bacteria
Creators: name: Parasa, Mrugesh Krishna
Publisher: name: Purdue University Graduate School
Year: 2023
Subjects: Biomedical engineering not elsewhere classified

description: Biomolecular condensates or membrane-less organelles are phase separated proteins and/or other biomolecules that are ubiquitous in eukaryotic cells. While these condensates may be liquid with exchange and diffusion of their components with the rest of the cell (e.g., cytoplasm), they locally concentrate their constituent biomolecules altering their interactions in normal cellular processes. This phenomenon has been exploited for static control of protein activity in E. coli. However, neither dynamic control of protein activity using external triggers nor programmable tuning of protein activity has been explored so far. To address these gaps, I fused proteins of interest to elastin-like polypeptides (ELP) that aggregate in response to an increase in temperature. In so doing, I sequester their fusion partners from the cytoplasm, limiting their ability to participate in cytoplasmic reactions. I have demonstrated this concept in vivo with enzymes and transcription factors for switchable control of protein activity with temperature. For example, I-SceI mediated cleavage of a host genome can be inhibited by increasing the cultivation temperature, creating a simple temperature-sensitive kill switch; accidental release will lower the culture temperature leading to cell death. Similarly, coupled transcription factors exhibit a 2-fold increase in transcription relative to unfused transcription factor controls at elevated temperatures. More importantly, the threshold for coacervate formation and control of protein activity may be tuned through appropriate design of the ELP used for fusion. Furthermore, the temperature response of the ELP fusion is unique to each protein and depends on the structure of the fusion partner, which dictates the structure of the ELP fused aggregate. Our results introduce a simple yet effective, rapid, and tunable approach to control protein activity via induction of coacervate formation that may form a powerful new tool for synthetic biology.
Superfluid/Bose-glass transition in one dimension
Creators: name: Ristivojevic, Zoran
name: Petkovic, Aleksandra
name: Doussal, Pierre Le
name: Giamarchi, Thierry
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider a one-dimensional system of interacting bosons in a random potential. At zero temperature, it can be either in the superfluid or in the insulating phase. We study the transition at weak disorder and moderate interaction. Using a systematic approach, we derive the renormalization group equations at two-loop order and discuss the phase diagram. We find the universal form of the correlation functions at the transitions and compute the logarithmic corrections to the main universal power-law behavior. In order to mimic large density fluctuations on a single site, we study a simplified model of disordered two-leg bosonic ladders with correlated disorder across the rung. Contrarily to the single-chain case, the latter system exhibits a transition between a superfluid and a localized phase where the exponents of the correlation functions at the transition do not take universal values.
description: 21 pages, 3 figures
Lamplighter model of a random copolymer adsorption on a line
Creators: name: Nazarov, L. I.
name: Nechaev, S. K.
name: Tamm, M. V.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We present a model of an AB-diblock random copolymer sequential self-packaging with local quenched interactions on a one-dimensional infinite sticky substrate. It is assumed that the A-A and B-B contacts are favorable, while A-B are not. The position of a newly added monomer is selected in view of the local contact energy minimization. The model demonstrates a self-organization behavior with the nontrivial dependence of the total energy, $E$ (the number of unfavorable contacts), on the number of chain monomers, $N$: $E\sim N^{3/4}$ for quenched random equally probable distribution of A- and B-monomers along the chain. The model is treated by mapping it onto the "lamplighter" random walk and the diffusion-controlled chemical reaction of $X+X\to 0$ type with the subdiffusive motion of reagents.
description: 8 pages, 5 figures
BioPsych project update - identification of biomarkers in the human psychiatric brain (focusing on non-coding RNAs and sex differences)
Creators: name: Elfving, Betina
Publisher: name: Zenodo
Year: 2022
Subjects: psychiatry
human brain
sex differences
biomarkers

description: This is a recorded talk with head of the BioPsych project - Betina Elfving, where she presents the latest project progress. The talk was given at one of ODIN's (the Open Discovery Innovation Network) Knowledge Sharing Events in November 2022.
description: ODIN is funded by the Novo Nordisk Foundation (grant number NNF20SA0061466)
Gate-tunable coherent perfect absorption of terahertz radiation in graphene
Creators: name: Liu, Fangli
name: Chong, Y. D.
name: Adam, Shaffique
name: Polini, Marco
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Perfect absorption of radiation in a graphene sheet may play a pivotal role in the realization of technologically relevant optoelectronic devices. In particular, perfect absorption of radiation in the terahertz (THz) spectral range would tremendously boost the utility of graphene in this difficult range of photon energies, which still lacks cheap and robust devices operating at room temperature. In this work we show that unpatterned graphene flakes deposited on appropriate substrates can display gate-tunable coherent perfect absorption (CPA) in the THz spectral range. We present theoretical estimates for the CPA operating frequency as a function of doping, which take into account the presence of common sources of disorder in graphene samples.
description: To appear in 2D Materials
Potential of an injectable IL-10 rich collagen hydrogel for cell transplantation in Parkinson's Disease
Creators: name: Cabre, Silvia
name: Alamilla, Veronica
name: Moriarty, Niamh
name: Pandit, Abhay
name: Dowd, Eilis
Publisher: name: Zenodo
Year: 2018
Subjects: collagen hydrogel, IL-10, cell transplantation, Parkinson's disease

description: GDNF-enriched collagen hydrogels have shown to increase survival and re-innervation of grafted primary cells in rodent models Parkinson’s disease.1 Thus, the site specific delivery of neuroprotective and anti-inflammatory factors using an injectable biomaterial scaffold has the potential to target the main obstacles of the transplantation process such as poor cell survival and an elevated host immune response.

The aim of this study was to assess the biocompatibility of type 1 bovine collagen hydrogels of various cross-linker concentrations in vivo and the IL-10 release kinetics from these hydrogels.

In vitro, primary neural cultures were incubated with preformed collagen hydrogels for 24 h, and biocompatibility was assessed using cell viability assays and immunocytochemistry. In vivo, 24 male Sprague Dawley rats were given a bilateral intra-striatal delivery of 1000 ng of IL-10 as a bolus or encapsulated in collagen hydrogels. Polymerisation, biocompatibility, biodegradability and IL-10 retention were assessed at days 1, 2 and 4 using immunohistochemistry.

Collagen hydrogels were cytocompatible with primary neurons in vitro, successfully polymerised in situ in the brain, where they were also biocompatible and biodegradable. Most importantly, injection of IL-10 within the collagen hydrogel resulted in significant retention of the anti-inflammatory cytokine in the striatum, and reduced the host microglial response at the site of administration.

These studies highlight the potential of biomaterials for delivering anti-inflammatory cytokines to the brain which could benefit brain repair strategies for Parkinson’s disease.
description: {"references": ["Moriarty N, Cabr\u00e9 S, Alamilla V, Pandit A, Dowd E. Encapsulation of young donor age dopaminergic grafts in a GDNF-loaded collagen hydrogel further increases their survival, re-innervation and functional efficacy after intra-striatal transplantation in hemi-Parkinsonian rats. European Journal of Neuroscience, 2018;001\u201310"]}