cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Horizon complementarity in elliptic de Sitter space
Creators: name: Hackl, Lucas
name: Neiman, Yasha
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study a quantum field in elliptic de Sitter space dS_4/Z_2 - the spacetime obtained from identifying antipodal points in dS_4. We find that the operator algebra and Hilbert space cannot be defined for the entire space, but only for observable causal patches. This makes the system into an explicit realization of the horizon complementarity principle. In the absence of a global quantum theory, we propose a recipe for translating operators and states between observers. This translation involves information loss, in accordance with the fact that two observers see different patches of the spacetime. As a check, we recover the thermal state at the de Sitter temperature as a state that appears the same to all observers. This thermal state arises from the same functional that, in ordinary dS_4, describes the Bunch-Davies vacuum.
description: 23 pages + 5 pages of appendices, 6 figures; v2: PRD version, minor corrections
Determinants of renewable energy consumption in Madagascar (Dataset)
Creators: name: Ramaharo, Franck M.
Publisher: name: OSF
Year: 2023
Subjects: Madagascar
domestic investment
economic development
economic growth
environmental quality
exchange rate
financial development
household income
income
industrial development
inflation
renewable energy consumption
tourism development
trade openness
urbanization

description: Madagascar - Macroeconomic, financial, social and environmental data (1990-2021)
EIF6 PHOSPHORYLATION ON SER235 IS REQUIRED FOR MAMMALIAN DEVELOPMENT AND FOR T-CELL LYMPHOMAGENESIS, ESTABLISHING A FUNCTIONAL NETWORK BETWEEN TRANSLATION AND SENESCENCE.
Creators: name: SCAGLIOLA, ALESSANDRA
Publisher: name: Universit� degli Studi di Milano
Year: 2019

description: Deregulated translation control is a hallmark of human cancers and is critical for tumorigenesis downstream of multiple oncogenic signaling pathways. eIF6 is an oncogenic translation factor, which regulates the initiation phase of translation controlling active 80S complex formation. eIF6 depletion and dephosphorylation slow cell growth and cell transformation in vitro and protect from tumor development in mice. eIF6 activation is mTORC1-independent and driven by PKC? mediated phosphorylation on Ser235. Intriguingly, both eIF6 overexpression and PKC hyperactivation are found in T-cell lymphomas, such as in Anaplastic Large Cell Lymphoma (ALCL). We hypothesized that eIF6 phosphorylation drives T cell lymphomagenesis and mammalian development. We used a conditional eIF6SA KI mouse model in which Ser235 is replaced by an Ala. We discovered that homozygous point mutation (eIF6SA/SA) is lethal after gastrulation. Heterozygous mice (eIF6SA/+) are viable but resistant to NPM-ALK induced lymphomagenesis. The survival of eIF6SA/SA NPM-ALK mice is significantly increased and the appearance of lymphoma is delayed up to 6 months. Surprisingly, ex vivo eIF6SA/SA NPM-ALK primary thymocytes have a striking senescence-like phenotype. Similarly, in vitro generated eIF6SA/SA MEFs show a markedly reduced proliferation and increased senescence. This phenotype is completely rescued by transducing eIF6wt, but not by eIF6SA. In eIF6SA/SA MEFs, the direct interaction between mutant eIF6SA protein with the 60S ribosomal subunit surface is extremely increased, suggesting that 60S viability, required for active translation, could be compromised. In conclusion, our work demonstrates for the first time that eIF6 phosphorylation on Ser235 is essential for mammalian development, cell homeostasis and is rate-limiting for T-cell lymphomagenesis in vivo. Finally, we suggest that the translational control driven by eIF6 activity induces cellular premature senescence, resulting in a protective mechanism against tumor progression.
BOUNDARY VALUE PROBLEMS FOR QUASI-LINEAR AND HIGHER-ORDER ELLIPTIC OPERATORS AND APPLICATION TO BIFURCATION AND STABILIZATION.
Creators: name: ZONGO, WEND BENEDO EMMANUEL
Publisher: name: Universit� degli Studi di Milano
Year: 2022

description: In this thesis, we are interested in the study of nonlinear eigenvalue problem and the controllability of partial differential equations in a smooth bounded domain with boundary. The first part is devoted to the analysis of an eigenvalue problem for quasilinear elliptic operators involving homogeneous Dirichlet boundary conditions. We investigate the asymptotic behaviour of the spectrum of the related problem by showing on the one hand the bifurcation results from trivial solutions using the Krasnoselski bifurcation theorem and bifurcation from infinity using the Leray-Schauder degree on the other hand. We also prove the existence of multiple critical points using variational methods and the Krasnoselski genus. At last, we show a stabilization result for the damped plate equation with logarithmic decay of the associated energy. The proof of this result is achieved by means of a proper Carleman estimate for the fourth-order elliptic operators involving the so-called Lopatinskii-?apiro boundary conditions and a resolvent estimate for the generator of the damped plate semigroup associated with these boundary conditions.
Asymptotics of spherical superfunctions on rank one Riemannian symmetric superspaces
Creators: name: Alldridge, Alexander
name: Palzer, Wolfgang
Publisher: name: arXiv
Year: 2014
Subjects: subject: Representation Theory (math.RT)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We compute the Harish-Chandra $c$-function for a generic class of rank-one purely non-compact Riemannian symmetric superspaces $X=G/K$ in terms of Euler $Γ$ functions, proving that it is meromorphic. Compared to the even case, the poles of the $c$-function are shifted into the right half-space. We derive the full asymptotic Harish-Chandra series expansion of the spherical superfunctions on $X$. In the case where the multiplicity of the simple root is an even negative number, they have a closed expression as Jacobi polynomials for an unusual choice of parameters.
description: 41 pages; slightly expanded version; accepted for publication in Doc. Math (2014)
title: Naherholungsraum Liesingbach
Creators: name: Steiner, Johanna
Year: 2021

description: Die vorliegende Arbeit beschäftigt sich mit der Thematik von Freiräumen in der Stadtplanung am Beispiel eines Abschnittes des Liesingbachs im 23. Wiener Gemeindebezirk und den ihn umgebenden Naherholungsflächen – bezeichnet als „Freiraum Liesingbach“. Der Auseinandersetzung mit öffentlichen Räumen im Allgemeinen und Grün- und Freiräumen bzw. Naherholungsgebieten im Besonderen kommt in der Stadtentwicklung aktuell eine große Bedeutung zu. Die Zugänglichkeit und Nutzbarkeit von Freiräumen im Stadtgebiet, insbesondere von Großstädten, ist für die BewohnerInnen von besonderer Wichtigkeit, da sie mit ihren verschiedenen Funktionen einen wesentlichen Beitrag zur physischen und psychischen Gesundheit der Bevölkerung leisten. Außerdem erfüllen sie in den Städten wichtige ökologische Funktionen und führen zu einer Verbesserung des Stadtklimas. Die Fragestellung bezieht sich in Hinblick auf die geplante Renaturierung des Liesingbachs und eine damit einhergehende Umgestaltung des Freiraums darauf, welche Qualität der „Freiraum Liesingbach derzeit für seine NutzerInnen hinsichtlich funktionaler, sozialräumlicher und ökologischer Aspekte hat und welche Handlungsempfehlungen daraus abgeleitet werden können. Zur Beantwortung der Fragestellung wurden eine Umfeld- und Sekundärdatenanalyse, strukturierte Begehungen, Beobachtungen sowie leitfadengestützte Interviews mit NutzerInnen durchgeführt. Außerdem wurden durch Literaturarbeit das Thema sowie die Ergebnisse theoretisch eingebettet. Die Forschung zeigte eine sehr hohe aktuelle Zufriedenheit der NutzerInnen mit dem „Frei-raum Liesingbach“ und zugleich größtenteils positive Erwartungshaltungen an die geplanten Umgestaltungen, vorrangig aufgrund des immer größer werdenden Nutzungsdrucks auf den Freiraum und damit einhergehenden Nutzungskonflikten. Bei der Bewertung der Freiraumqualität standen Erholung und Entspannung im Vordergrund sowie die vorhandene oder nicht vorhandene materielle Infrastruktur für die jeweilige NutzerInnengruppe bzw. deren Bedürfnisse. So heterogen wie die NutzerInnen im Freiraum Liesingbach sind auch die Kritikpunkte an dem Selbigen.
The QCD analysis of the combined set for the F_3 structure function data based on the analytic approach
Creators: name: Sidorov, A. V.
name: Solovtsova, O. P.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We apply analytic perturbation theory to the QCD analysis of the xF_3(x,Q^2) structure function considering a combined set of deep inelastic scattering data presented by several collaborations, and extract values of the scale parameter Lambda_{QCD}, the parameters of the form of the xF_3 structure function, and the x-shape of the higher twist contribution. We study the difference between the results obtained within the standard perturbative and analytic approaches in comparison with the experimental errors and state that the greatest difference occurs for large x.
description: 9 pages, 6 figures, journal version
A convergence and asymptotic analysis of the generalized symmetric FastICA algorithm
Creators: name: Wei, Tianwen
Publisher: name: arXiv
Year: 2014
Subjects: subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: This contribution deals with the generalized symmetric FastICA algorithm in the domain of Independent Component Analysis (ICA). The generalized symmetric version of FastICA has been shown to have the potential to achieve the Cramér-Rao Bound (CRB) by allowing the usage of different nonlinearity functions in its parallel implementations of one-unit FastICA. In spite of this appealing property, a rigorous study of the asymptotic error of the generalized symmetric FastICA algorithm is still missing in the community. In fact, all the existing results exhibit certain limitations, such as ignoring the impact of data standardization on the asymptotic statistics or being based on a heuristic approach. In this work, we aim at filling this blank. The first result of this contribution is the characterization of the limits of the generalized symmetric FastICA. It is shown that the algorithm optimizes a function that is a sum of the contrast functions used by traditional one-unit FastICA with a correction of the sign. Based on this characterization, we derive a closed-form analytic expression of the asymptotic covariance matrix of the generalized symmetric FastICA estimator using the method of estimating equation and M-estimator.
description: Final version of the paper
First direct limits on Lightly Ionizing Particles with electric charge less than $e/6$
Creators: name: Agnese, R.
name: Anderson, A. J.
name: Balakishiyeva, D.
name: Thakur, R. Basu
name: Bauer, D. A.
name: Billard, J.
name: Borgland, A.
name: Bowles, M. A.
name: Brandt, D.
name: Brink, P. L.
name: Bunker, R.
name: Cabrera, B.
name: Caldwell, D. O.
name: Cerdeno, D. G.
name: Chagani, H.
name: Chen, Y.
name: Cooley, J.
name: Cornell, B.
name: Crewdson, C. H.
name: Cushman, P.
name: Daal, M.
name: Di Stefano, P. C. F.
name: Doughty, T.
name: Esteban, L.
name: Fallows, S.
name: Figueroa-Feliciano, E.
name: Godfrey, G. L.
name: Golwala, S. R.
name: Hall, J.
name: Harris, H. R.
name: Hertel, S. A.
name: Hofer, T.
name: Holmgren, D.
name: Hsu, L.
name: Huber, M. E.
name: Jastram, A.
name: Kamaev, O.
name: Kara, B.
name: Kelsey, M. H.
name: Kennedy, A.
name: Kiveni, M.
name: Koch, K.
name: Leder, A.
name: Loer, B.
name: Asamar, E. Lopez
name: Mahapatra, R.
name: Mandic, V.
name: Martinez, C.
name: McCarthy, K. A.
name: Mirabolfathi, N.
name: Moffatt, R. A.
name: Moore, D. C.
name: Nelson, H.
name: Nelson, R. H.
name: Ogburn, R. W.
name: Page, K.
name: Page, W. A.
name: Partridge, R.
name: Pepin, M.
name: Phipps, A.
name: Prasad, K.
name: Pyle, M.
name: Qiu, H.
name: Rau, W.
name: Redl, P.
name: Reisetter, A.
name: Ricci, Y.
name: Rogers, H. E.
name: Saab, T.
name: Sadoulet, B.
name: Sander, J.
name: Schneck, K.
name: Schnee, R. W.
name: Scorza, S.
name: Serfass, B.
name: Shank, B.
name: Speller, D.
name: Upadhyayula, S.
name: Villano, A. N.
name: Welliver, B.
name: Wright, D. H.
name: Yellin, S.
name: Yen, J. J.
name: Young, B. A.
name: Zhang, J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: While the Standard Model of particle physics does not include free particles with fractional charge, experimental searches have not ruled out their existence. We report results from the Cryogenic Dark Matter Search (CDMS II) experiment that give the first direct-detection limits for cosmogenically-produced relativistic particles with electric charge lower than $e$/6. A search for tracks in the six stacked detectors of each of two of the CDMS II towers found no candidates, thereby excluding new parameter space for particles with electric charges between $e$/6 and $e$/200.
description: 5 pages, 6 figures, submitted to PRL
title: Darstellung von Geschlechterrollen in Sachbilderbüchern
Creators: name: Petz, Caroline Johanna
Year: 2021

description: Die Darstellung von Geschlechterrollen in Bilderbüchern ist das grundlegende Thema dieser Arbeit. Insbesondere wird untersucht, wie weibliche und männliche Figuren in mo-dernen Sachbilderbüchern abgebildet sind und wie sie sich im Hinblick auf diese Abbil-dung von älteren Bilderbüchern unterscheiden. Für diese Studie wurden sechs Sachbil-derbücher, erschienen 2010 oder später, aus Bestsellerlisten ausgesucht und 29 Bilder daraus im Hinblick auf die Darstellung der Geschlechter analysiert. Für die Untersuchung wurde eine Bildanalyse nach Niesyto mit einer strukturanalytischen Inhaltsanalyse des Textes nach Schütte kombiniert. Die Bildkategorien, die sich aus dieser Analyse erga-ben, wurden mit einer Studie zu älteren Bilderbüchern verglichen. Der theoretische Teil der Arbeit widmet sich dem Bilderbuch und seiner pädagogischen Relevanz sowie Ge-schlechterrollen und dem aktuellen Forschungsstand zu deren Darstellung in Bilderbü-chern. Die Ergebnisse der Analyse zeigen eine leichte Veränderung der Darstellung von Geschlechtern im Vergleich zu älteren Bilderbüchern, wobei diese Wandlung hauptsäch-lich weibliche Charaktere betrifft.
description: The topic of this analysis is the presentation of gender roles in picture books. Especially examined is the illustration of female and male characters in modern factual picture books and if there is a change of illustration compared to older picture books. For this study six factual picture books from bestseller lists – published 2010 or later – have been chosen and 29 pictures of them have been analyzed about the illustration of gender. For this research the picture analysis of Niesyto has been combined with the structural text analysis of Schütte. The categories which resulted from this interpretation have been compared with a study about older picture books. The theoretical part of this study is about picture books and their pedagogical relevance as well as gender roles and the cur-rent state of research concerning the illustration of gender roles in picture books. The results of this research show that there is a slight change of illustration of gender roles compared to older picture books but concerning mostly female characters.
Extensions of the Charged Riemannian Penrose Inequality
Creators: name: Khuri, Marcus
name: Weinstein, Gilbert
name: Yamada, Sumio
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: In this paper we investigate the extension of the charged Riemannian Penrose inequality to the case where charges are present outside the horizon. We prove a positive result when the charge densities are compactly supported, and present a counterexample when the charges extend to infinity. We also discuss additional extensions to other matter models.
description: 11 pages; final version
TRENDS, CHALLENGES AND PROSPECTS OF NIGERIA’S AFRICAN CENTERPIECE DIPLOMACY CATALYZING THE HUMANITARIAN APPROACH
Creators: name: Eferebo, Ikaonaworio
Publisher: name: figshare
Year: 2022
Subjects: subject: 220202 History and Philosophy of Education
subject: FOS: Philosophy, ethics and religion
subject: 220207 History and Philosophy of the Humanities
subject: 220208 History and Philosophy of the Social Sciences
subject: 220210 History of Philosophy
subject: 130205 Humanities and Social Sciences Curriculum and Pedagogy (excl. Economics, Business and Management)
subject: FOS: Educational sciences

description: The paper x-rayed Nigeria’s African Centerpiece Diplomacy as the basis of its foreign policy. This is laughable in view of the current global phenomenon such as globalization, democracy, climate change, terrorism, human rights and so forth. This is so as it is time for Nigeria to showcase the giant we are within the global community. Therefore, Nigeria should not limit itself to gains within the African centerpiece as a pillar of its foreign policy rather she should be widening her horizons to accommodate contemporary realities of the global system; is a welcomed development. As it can definitely embolden Nigeria as a big power player in global politics, for a strategic review of its foreign policy objectives taking into cognizance contemporary challenges of the globalized order. Hence, the paper therefore argues that, it is no longer tenable for foreign policy to revolve around a single pillar rather than a crop of potential foreign policy objectives for the country.
THE INFLUENCE OF BUSINESS STRATEGY IN INCREASING THE COMPETITIVENESS OF MEDIUM AND LARGE-SCALE MANUFACTURING COMPANIES IN MEDAN
Creators: name: ELIDAWATI
name: AZHAR MAKSUM
name: IDHAR YAHYA
name: NURLINDA
Publisher: name: Zenodo
Year: 2023
Subjects: Business Strategy, Competitiveness, Manufacturing Company

description: Abstract
Medium- and large-scale manufacturing firms play an important role in the regional economy. However, in the face of increasing competition, these firms must have strong competitiveness in order to survive and thrive. One important factor in improving the competitiveness of manufacturing companies is business strategy. The purpose of this study is to identify the effect of business strategy on the competitiveness of medium and large-scale manufacturing companies in Medan. This research uses quantitative research methods. Data collection techniques in this study were documentation studies and questionnaires. The data were then analyzed using SPSS, namely validity, reliability and linear regression tests. The results showed that business strategy has a significant effect in improving the competitiveness of medium and large scale manufacturing companies in Medan.
Topological transitions from multipartite entanglement with tensor networks: a procedure for sharper and faster characterization
Creators: name: Orus, Roman
name: Wei, Tzu-Chieh
name: Buerschaper, Oliver
name: Garcia-Saez, Artur
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Lattice (hep-lat)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Topological order in a 2d quantum matter can be determined by the topological contribution to the entanglement Rényi entropies. However, when close to a quantum phase transition, its calculation becomes cumbersome. Here we show how topological phase transitions in 2d systems can be much better assessed by multipartite entanglement, as measured by the topological geometric entanglement of blocks. Specifically, we present an efficient tensor network algorithm based on Projected Entangled Pair States to compute this quantity for a torus partitioned into cylinders, and then use this method to find sharp evidence of topological phase transitions in 2d systems with a string-tension perturbation. When compared to tensor network methods for Rényi entropies, our approach produces almost perfect accuracies close to criticality and, on top, is orders of magnitude faster. The method can be adapted to deal with any topological state of the system, including minimally entangled ground states. It also allows to extract the critical exponent of the correlation length, and shows that there is no continuous entanglement-loss along renormalization group flows in topological phases.
description: 5 pages, 4 figures, and supplementary material with 10 pages, 14 figures. Revised version, to appear in PRL
title: Liturgie und Bauökonomie in der Entwicklung des Kirchenbaus
Creators: name: Bischof, Günter
Year: 2021

description: Ziel dieser Arbeit ist es, die Nützlichkeit praktischer, also nicht akademischer, bauökonomischer Erfahrungen und Erkenntnisse aus der Immobilienprojektentwicklung bei der vertieften Interpretation kunst-, architektur- und liturgiegeschichtlicher Befunde (in diesem Fall zur Entwicklung des Kirchenbaus und damit der Liturgie) zu hinterfragen und zu erweisen. Unter Bauökonomie wird dabei die Expertise eines gewerblichen Bauherrn, eines Bauträgers, verstanden, einschließlich seiner im Laufe der Zeit erworbenen Erfahrungen in baupraktischen, insbesondere auch bautechnischen, Fragen und Problemen. Dies setzt voraus, dass einschlägige moderne Erfahrungen auf lange zurückliegende Verhältnisse anwendbar sind. Das zu erweisen wird anhand des 25. Briefes des Gregor von Nyssa versucht. Die weitere Methode besteht darin, kunst- und liturgiehistorische Befunde, die meist nur das „wie sich etwas verändert hat“ im Auge haben, auf der Suche nach möglichem bauökonomischem „warum“ zu kommentieren und zu plausibilisieren, aber auch zu kritisieren. Dies ist als denkanstoßende Rückmeldung aus der Praxis zu verstehen. Die behandelten Befunde kreisen dabei vor allem (neben Gregors 25. Brief) um die Themen Pastophorien, Basilika, Kreuzkuppelkirche und Kirchenfamilien. Aus Sicht des Bauökonomen sind die Ergebnisse erfrischend, lassen sich doch sonst sehr kontroversiell diskutierte Bauformen, wie Vorchorjoch und Pastophorien oder die „echte“ Kreuzkuppelkirche, bauökonomisch leicht und eindeutig, fast wie von selbst, erklären. Ob solch Erkenntnis bei wissenschaftlichen Befundungen durch Kultur- oder Liturgiehistoriker hilfreich sein könnte, müssten selbige beurteilen.
description: The aim of this work is to question and verify the usefulness of practical, i.e. non-scientific expertise in real estate development, for in-depth understanding of evaluations by historians of art or liturgy, in this case focussing on historic developments in church building and thus liturgy. This assumes that pertinent modern expertise applies to long gone circumstances, what is attempted to prove on the basis of the 25th letter of Gregor of Nyssa. The further method consists in commenting, even criticising, art- and liturgy- historical findings, which mainly concentrate on „how“ things have changed, in search of a possible „why“ they did so. This should be understood as a practice-oriented feedback. The questions dealt with are (besides Gregor´s 25th letter) mainly the antechoir bay and its pastophoria, basilics, cross-domed churches and church families. From a real estate developer´s view the results are invigorating, since the evolution of those structures, usually debated very controversially, can be easily explained by the mechanisms of real estate development. Whether such insights could be helpful for art- and liturgy- historians´ findings would have to be evaluated by themselves.
Table S1 from RNA binding protein AUF1/HNRNPD regulates nuclear export, stability and translation of SNCA transcripts
Creators: name: Kattan, Fedon-Giasin
name: Koukouraki, Pelagia
name: Anagnostopoulos, Athanasios K.
name: Tsangaris, George T.
name: Doxakis, Epaminondas
Publisher: name: The Royal Society
Year: 2023
Subjects: classificationCode: 310803
subject: Plant cell and molecular biology
classificationCode: 310902
subject: Animal cell and molecular biology
classificationCode: 320999
subject: Neurosciences not elsewhere classified

description: Primers used in this study.
Circular-polarization sensitive metamaterial based on triple quantum-dot molecules
Creators: name: Kotetes, Panagiotis
name: Jin, Pei-Qing
name: Marthaler, Michael
name: Schön, Gerd
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We propose a new type of a chiral metamaterial based on an ensemble of artificial molecules formed by three identical quantum-dots in a triangular arrangement. A static magnetic field oriented perpendicular to the plane breaks mirror symmetry, rendering the molecules sensitive to the circular polarization of light. By varying the orientation and magnitude of the magnetic field one can control the polarization and frequency of the emission spectrum. We identify a threshold frequency, Ω, above which we find strong birefringence. In addition, a Kerr rotation and circularly polarized lasing action can be implemented. We investigate the single-molecule lasing properties for different energy-level arrangements and demonstrate the possibility of circular polarization conversion. Finally, we analyze the effect of weak stray electric fields or deviations from the equilateral triangular geometry.
description: Main text: 5 pages and 7 figures; Supplementary material: 6 pages; Note: The first two authors contributed equally to this work. Final version to appear in Phys. Rev. Lett
Measurement-device-independent quantum key distribution with ensemble-based memories
Creators: name: Piparo, Nicoló Lo
name: Razavi, Mohsen
name: Panayi, Christiana
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum memories are enabling devices for extending the reach of quantum key distribution (QKD) systems. The required specifications for memories are, however, often considered too demanding for available technologies. One can change this mindset by introducing memory-assisted measurement-device-independent QKD (MDI-QKD), which imposes less stringent conditions on the memory modules. It has been shown that, in the case of {\em fast} single-qubit memories, we can reach rates and distances not attainable by single no-memory QKD links. Single-qubit memories, such as single atoms or ions, have, currently, too slow of an access time to offer an advantage in practice. Here, we relax that assumption, and consider ensemble-based memories, which satisfy the main two requirements of having short access times and large storage-bandwidth products. Our results, however, suggest that the multiple-excitation effects in such memories can be so detrimental that they may wash away the scaling improvement offered by memory-equipped systems. We then propose an alternative setup that can in principle remedy the above problem. As a prelude to our main problem, we also obtain secret key generation rates for MDI-QKD systems that rely on imperfect single-photon sources with nonzero probabilities of emitting two photons.
Inferring Epigenetic Dynamics from Kin Correlations
Creators: name: Hormoz, Sahand
name: Desprat, Nicolas
name: Shraiman, Boris I.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Populations of isogenic embryonic stem cells or clonal bacteria often exhibit extensive phenotypic heterogeneity which arises from stochastic intrinsic dynamics of cells. The internal state of the cell can be transmitted epigenetically in cell division, leading to correlations in the phenotypic states of cells related by descent. Therefore, a phenotypic snapshot of a collection of cells with known genealogical structure, contains information on phenotypic dynamics. Here we use a model of phenotypic dynamics on a genealogical tree to define an inference method which allows to extract an approximate probabilistic description of phenotypic dynamics based on measured correlations as a function of the degree of kinship. The approach is tested and validated on the example of Pyoverdine dynamics in P. aeruginosa colonies. Interestingly, we find that correlations among pairs and triples of distant relatives have a simple but non-trivial structure indicating that observed phenotypic dynamics on the genealogical tree is approximately conformal - a symmetry characteristic of critical behavior in physical systems. Proposed inference method is sufficiently general to be applied in any system where lineage information is available.
description: 18 pages, 11 figures
Measurement of inclusive jet charged-particle fragmentation functions in Pb+Pb collisions at $\sqrt{s_{NN}} = 2.76$ TeV with the ATLAS detector
Creators: name: ATLAS Collaboration
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Measurements of charged-particle fragmentation functions of jets produced in ultra-relativistic nuclear collisions can provide insight into the modification of parton showers in the hot, dense medium created in the collisions. ATLAS has measured jets in $\sqrt{s_{NN}} = 2.76$ TeV Pb+Pb collisions at the LHC using a data set recorded in 2011 with an integrated luminosity of 0.14 nb$^{-1}$. Jets were reconstructed using the anti-$k_{t}$ algorithm with distance parameter values $R$ = 0.2, 0.3, and 0.4. Distributions of charged-particle transverse momentum and longitudinal momentum fraction are reported for seven bins in collision centrality for $R=0.4$ jets with $p_{T}^{\mathrm{jet}}> 100$ GeV. Commensurate minimum $p_{\mathrm{T}}$ values are used for the other radii. Ratios of fragment distributions in each centrality bin to those measured in the most peripheral bin are presented. These ratios show a reduction of fragment yield in central collisions relative to peripheral collisions at intermediate $z$ values, $0.04 \lesssim z \lesssim 0.2$ and an enhancement in fragment yield for $z \lesssim 0.04$. A smaller, less significant enhancement is observed at large $z$ and large $p_{\mathrm{T}}$ in central collisions.
description: 17 pages plus author list + cover pages (32 pages total), 8 figures, 4 tables, published in Physics Letters B 739 (2014) 320-342. All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HION-2012-08/
Supporting information from Insulin receptor Arg717 and IGF-1 receptor Arg704 play a key role in ligand binding and in receptor activation
Creators: name: Kertisová, Anna
name: Žáková, Lenka
name: Macháčková, Kateřina
name: Marek, Aleš
name: Šácha, Pavel
name: Pompach, Petr
name: Jiráček, Jiří
name: Selicharová, Irena
Publisher: name: The Royal Society
Year: 2023
Subjects: classificationCode: 310112
subject: Structural biology (incl. macromolecular modelling)

description: Supplementary methods, tables and Figures
Sequential Monte Carlo Samplers for capital allocation under copula-dependent risk models
Creators: name: Targino, Rodrigo S.
name: Peters, Gareth W.
name: Shevchenko, Pavel V.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Computation (stat.CO)
subject: Risk Management (q-fin.RM)
subject: Applications (stat.AP)
subject: FOS: Computer and information sciences
subject: FOS: Economics and business
subject: 65C40, 65C05, 62P05

description: In this paper we assume a multivariate risk model has been developed for a portfolio and its capital derived as a homogeneous risk measure. The Euler (or gradient) principle, then, states that the capital to be allocated to each component of the portfolio has to be calculated as an expectation conditional to a rare event, which can be challenging to evaluate in practice. We exploit the copula-dependence within the portfolio risks to design a Sequential Monte Carlo Samplers based estimate to the marginal conditional expectations involved in the problem, showing its efficiency through a series of computational examples.
Long-Distance Trust-Free Quantum Key Distribution
Creators: name: Piparo, Nicoló Lo
name: Razavi, Mohsen
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The feasibility of trust-free long-haul quantum key distribution (QKD) networks is addressed. We combine measurement-device-independent QKD (MDI-QKD), as an access technology, with a quantum repeater setup, at the core of future quantum communication networks. This will provide a quantum link none of whose intermediary nodes need to be trusted, or, in our terminology, a trust-free QKD link. As the main figure of merit, we calculate the secret key generation rate when a particular probabilistic quantum repeater protocol is in use. We assume the users are equipped with imperfect single photon sources, which can possibly emit two single photons, or laser sources to implement decoy-state techniques. We consider apparatus imperfection, such as quantum efficiency and dark count of photodetectors, path loss of the channel, and writing and reading efficiencies of quantum memories. By optimizing different system parameters, we estimate the maximum distance over which users can share secret keys when a finite number of memories are employed in the repeater setup.
Antibacterial, antifungal, and cytotoxicity activity of Drimia maritima
Creators: name: Abushiba, Mahmoud
name: Mohammed, Asma
name: Ashur, Nawal
name: Ismail, Faisal
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 320701
subject: Medical bacteriology
classificationCode: 310701
subject: Bacteriology
classificationCode: 310702
subject: Infectious agents

description: Background: Drimia (synonym Urginea) plants are bulbous plants and are distinctive, powerful medicinal plants. some species such as Drimia maritima (D. maritima) are indigenous to the Mediterranean basin and have been traditionally utilized for centuries to cure various diseases. The phytochemical studies of the plant reveal the presence of flavonoids, and tannins as major constituents, alkaloids, and glycosides. Studies have shown that the D. maritima extract has antimicrobial action against many pathogens. Objective: The study aimed to evaluate the antibacterial, antifungal activity, and cytotoxicity of D. maritima against some bacterial and fungal isolates of medical importance. Methods: The antimicrobial activity of the extracts was evaluated against medical-importance isolates using agar diffusion. Determination of the Cytotoxicity effect of plant extract was performed using Hemolytic Activity using human red blood corpuscles. Result: The results showed the aqueous, alcoholic, and benzene extracts had different inhibitory effects against the tested bacteria, and the most obvious antibacterial action of the three extracts on E. coli, and the extracts showed a weak or non-activity on fungal species. The cytotoxicity results showed that the leaves had moderate toxicity, while the tubers did not have any toxic effects. Conclusion: Altogether, the results support the medicinal effects of D. maritima and its potential use as a biological source against some pathogenic microorganisms.
MICROALLOYING FOR STABLE LOW TEMPERATURE SOLDER MICROSTRUCTURE AND RELIABLE HETEROGENEOUS INTEGRATION: SB AND AG ADDITION TO LTS SN-BI
Creators: name: Fowler, Hannah Nicole
Publisher: name: Purdue University Graduate School
Year: 2023
Subjects: classificationCode: 401607
subject: Metals and alloy materials

description: Low-temperature, lead-free solders mitigate heating-induced warpage caused by the differences in coefficient of thermal expansion between printed circuit boards (PCBs), substrates, and dies during package assembly. Eutectic and near-eutectic Sn-Bi solders are promising low temperature candidates because they show high reliability at low strain rates during thermal cycling. However, Sn-Bi low temperature solder (LTS) has poor performance at high strain rates during drop-shock testing. Alloying additions such as Ag, Cu, and Sb have been shown to increase the ductility and strength of eutectic Sn-Bi and therefore improve the overall reliability during both thermal cycling and drop-shock. Small Sb additions to Sn-Bi LTS are of particular interest because these additions significantly increase ductility while maintaining the tensile strength. This increase in ductility was previously attributed to small SnSb intermetallic particles that form within the Sn phase on the interface of Sn and Bi in 1.0wt% Sb containing samples. Despite the fact the no SnSb intermetallic compound (IMC) particles have been found in 0.5Sb-42Sn-Bi samples in any previous studies or in our own studies, it was thought that the SnSb IMC particles were responsible for the improved reliability and ductility of Sn-Bi. This work encloses our efforts to understand how small Sb additions to eutectic Sn-Bi impact the solder microstructure and the resulting mechanical properties of the solder alloy. We began by studying possible solidification pathways through phase diagram analysis in Thermo?Calc to understand how the microstructure is predicted to develop and compared these models to the literature data. Next, we analyzed the microstructures of our custom Sb-containing alloys through a combination of scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), and electron probe microanalyzer-wavelength dispersive spectroscopy (EPMA-WDS) and determined that no SnSb IMC particles were found in the 0.5Sb-42Sn-Bi alloy and at 0.5 wt% the Sb remained in solid solution with Sn. Nanoindentation was then used to evaluate the strain rate sensitivity of Sn-Bi LTS with Sb additions and we found that, while the alloy hardness remains sensitive to different strain rates, the Sb in solid solution with Sn altered the deformation behavior of the alloy and decreased the amount of planar slip during indentation. To study the stability of the microstructure and the alloy behavior in use, shear testing was performed before and after isothermal aging. Our results suggest that Sb in solid solution with the Sn-rich phase contributes significantly to the changes in the eutectic microstructure and the mechanical properties.
Invariant distributions and X-ray transform for Anosov flows
Creators: name: Guillarmou, Colin
Publisher: name: arXiv
Year: 2014
Subjects: subject: Analysis of PDEs (math.AP)
subject: Differential Geometry (math.DG)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37D20, 37D40, 35R30

description: For Anosov flows preserving a smooth measure on a closed manifold $\mathcal{M}$, we define a natural self-adjoint operator $Π$ which maps into the space of invariant distributions in $\cap_{u<0} H^{u}(\mathcal{M})$ and whose kernel is made of coboundaries in $\cup_{s>0} H^{s}(\mathcal{M})$. We describe relations to Livsic theorem and recover regularity properties of cohomological equations using this operator. For Anosov geodesic flows on the unit tangent bundle $\mathcal{M}=SM$ of a compact manifold, we apply this theory to study questions related to $X$-ray transform on symmetric tensors on $M$: in particular we prove that injectivity implies surjectivity of X-ray transform, and we show injectivity for surfaces.
description: 30 pages, few corrections and new results (e.g. the image of $\Pi$ is dense among invariant distributions)
Global-scale simulation of foreshock structures at the quasi-parallel bow shock
Creators: name: Lin, Yu
Publisher: name: Auburn University
Year: 2003

description: A two-dimensional, global-scale hybrid simulation is carried out to study the kinetic structure of the quasi-parallel bow shock. In the simulation the bow shock forms by the interaction of the supersonic solar wind and the geomagnetic field. Strong temporal electromagnetic waves occur in the shock transition and foreshock regions due to backstreaming and reflected ions at the bow shock. This self-consistent, global-scale simulation shows the formation of diamagnetic cavities in the foreshock regions of the parallel and quasi-parallel shocks, where ion beams interact with the incoming solar wind plasma. The cavities are crater-like and saturate at a width similar to1-2 R-E, with a low-density and low-magnetic field center bounded by a rim of high density and high magnetic field. The bulk flow speed decreases slightly in the center of the cavity, while the ion temperature often, but not always, increases. The craters convect downstream with the solar wind flow. When the interplanetary magnetic field (IMF) lies nearly parallel to the solar wind flow, the craters develop into elongated phase-standing spatial structures along the field lines, both upstream and downstream, with alternate increases and decreases in the density and corresponding in-phase variations in the magnetic field strength. In the general cases with an oblique IMF the foreshock cavities can convect toward the Earth as transient compressional structures and impinge on the magnetopause. The generation and structure of the diamagnetic cavities are compared with those of hot flow anomalies. The simulation results are also compared with satellite observations of the foreshock of quasi-parallel shocks.
LOW-ALTITUDE OBSERVATIONS AND MODELING OF QUASI-STEADY MAGNETOPAUSE RECONNECTION
Creators: name: Onsager, T
name: Chang, Shen-Wu
name: PEREZ, J
name: AUSTIN, J
name: JANOO, L
Publisher: name: Auburn University
Year: 1995

description: Data from two near-conjugate passes of DE 1 and DE 2 through the cusp/cleft region of the Earth's magnetosphere are presented and compared with model calculations of particle transport from the solar wind to spacecraft locations in the magnetosphere. Comparison of the observed and calculated particle spectra shows that the model can successfully match the spectra at both spacecraft using the same model parameters. This demonstrates that the modeling technique is applicable at both high and low altitudes. We are also able to conclude that the particles originate from a fairly narrow spatial region on the magnetopause even though magnetosheath plasma has access to the magnetosphere over the entire magnetopause in the model. The success of the model in reproducing key features of the observed spectra and the fact that the two satellites in near magnetic conjunction but at different altitudes observed similar, distinctive features at times separated by 10 - 20 min demonstrates that there are quasi-stationary, spatial features in the cusp/cleft region of the Earth's magnetosphere.
SUSY-QCD corrections to stop annihilation into electroweak final states including Coulomb enhancement effects
Creators: name: Harz, J.
name: Herrmann, B.
name: Klasen, M.
name: Kovařík, K.
name: Meinecke, M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present the full $\mathcal{O}(α_s)$ supersymmetric QCD corrections for stop-anti-stop annihilation into electroweak final states within the Minimal Supersymmetric Standard Model (MSSM). We also incorporate Coulomb corrections due to gluon exchange between the incoming stops. Numerical results for the annihilation cross sections and the predicted neutralino relic density are presented. We show that the impact of the radiative corrections on the cosmologically preferred region of the parameter space can become larger than the current experimental uncertainty, shifting the relic bands within the considered regions of the parameter space by up to a few tens of GeV.
description: 20 pages, 13 figures, updated to version published in Phys. Rev. D
A two-dimensional hybrid simulation of the magnetotail reconnection layer
Creators: name: Lin, Y
name: Swift, D
Publisher: name: Auburn University
Year: 1996

description: Two-dimensional (2-D) hybrid simulations are carried out to study the structure of the reconnection layer in the distant magnetotail. In the simulation an initial current sheet separates the two lobes with antiparallel magnetic field components in the x direction. The current sheet normal is along the z direction. It is found that a leading bulge-like magnetic configuration and a trailing, quasi-steady reconnection layer are formed in a magnetic reconnection. If the duration of the reconnection is sufficiently long, the trailing reconnection layer will dominate the plasma outflow region. For the symmetric lobes with B-y = 0, two pairs of slow shocks are present in the quasi-steady reconnection layer. The slow shocks are expected to be fully developed at a sufficient distance from the X line, where the separation between the two shocks is greater than a few tens of the lobe ion inertial length. The Rankine-Hugoniot jump conditions of the slow shock are found to be better satisfied as the distance from the X line along the x axis increases. For the cases with B-y not equal 0 in the two lobes, two rotational discontinuity-like structures appear to develop in the reconnection layer. On the other hand, in the leading bulge region of a magnetic reconnection, no steady MHD discontinuities are found. Across the plasma sheet boundary layer the increase of the how velocity appears to be much smaller than that predicted from the Rankine-Hugoniot jump conditions for a steady discontinuity, and the increase in the ion number density is much larger. In addition, a large increase in the parallel ion temperature is found in the plasma sheet boundary layer. The 2-D simulation results are also compared with the one-dimensional hybrid simulations for the Riemann problem associated with the magnetotail reconnection. It is found that the 2-D effects may lead to the presence of the non-switch-off slow shocks and thus the lack of coherent wave trains in slow shocks.
A digital community bank: mapping negotiation mechanisms in its consolidation as an alternative to commercial banks
Creators: name: Gomes Da Silva Hernandes, Eurídice
name: Siqueira, Erica Souza
name: Diniz, Eduardo Henrique
name: Pozzebon, Marlei
Publisher: name: International Journal of Community Currency Research (IJCCR)
Year: 2018
Subjects: Community Bank
Social Currency
Digital Platform
Mobile Payment
Digital Payment
Fintech

description: This paper aims to map the negotiation mechanisms used by Banco Palmasin order to make Palmas Digital possible as a community digital bankin the Conjunto Palmeiras’ neighbourhood, state of Ceará,Brazil. Palmas Digital represents an alternative way to offerfinancial services in a network of community banks that was enabled bya digital payment platform called e-Dinheiro. Using a multilevelframework model proposed in Pozzebon & Diniz (2012), we seek tounderstand the interplay between different actors and technologicalartefacts in order to understand the "technology-in-practice", conceptdefined by Orlikowski (2000). The multilevel framework model was builtto understand social consequences of information and communicationtechnologies (ICT) interactions at a community level.