cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
On Descartes' rule of signs for hyperbolic polynomials
Creators: name: Kostov, Vladimir Petrov
Publisher: name: arXiv
Year: 2023
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics

description: We consider univariate real polynomials with all roots real and with two sign changes in the sequence of their coefficients which are all non-vanishing. One of the changes is between the linear and the constant term. By Descartes' rule of signs, such degree $d$ polynomials have $2$ positive and $d-2$ negative roots. We consider the sequences of the moduli of their roots on the real positive half-axis. When the moduli are distinct, we give the exhaustive answer to the question at which positions can the moduli of the two positive roots be.
WD 1856 b: a close giant planet around a white dwarf that could have survived a common-envelope phase
Creators: name: Lagos, F.
name: Schreiber, M. R.
name: Zorotovic, M.
name: Gänsicke, B. T.
name: Ronco, M. P.
name: Hamers, Adrian S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The discovery of a giant planet candidate orbiting the white dwarf WD 1856+534 with an orbital period of 1.4 d poses the questions of how the planet reached its current position. We here reconstruct the evolutionary history of the system assuming common envelope evolution as the main mechanism that brought the planet to its current position. We find that common envelope evolution can explain the present configuration if it was initiated when the host star was on the AGB, the separation of the planet at the onset of mass transfer was in the range 1.69-2.35 au, and if in addition to the orbital energy of the surviving planet either recombination energy stored in the envelope or another source of additional energy contributed to expelling the envelope. We also discuss the evolution of the planet prior to and following common envelope evolution. Finally, we find that if the system formed through common envelope evolution, its total age is in agreement with its membership to the Galactic thin disc. We therefore conclude that common envelope evolution is at least as likely as alternative formation scenarios previously suggested such as planet-planet scattering or Kozai-Lidov oscillations.
description: 7 pages, 3 figures, 2 tables; accepted for publication in MNRAS
Struggling for Authentic Human Synergy and a Robust Democratic Culture: The Wellspring Community for Women in Educational Leadership
Creators: name: Hackney, Catherine E.
name: Runnestrand, Diane
Publisher: name: Advancing Women in Leadership Journal
Year: 2017

description: In this paper we will introduce a community of women educational leaders, their struggles for personal and professional accountability, and their inquiry toward the development of leadership wisdom in a democratic culture. Such leadership wisdom is not the norm in today's educational organizations. Influenced by the work of researchers, educational leaders, and professors of educational administration, traditional leadership has been based on hierarchical thinking and prescriptive skills that have promoted the status quo (Davies & Foster, 1994; Maxcy, 1994). This paper tells the story of a group of women educational leaders who are supporting each other as they challenge tradition and explore the application of democratic leadership in educational settings. Their story is a result of the analysis of data collected over the first three years of the Wellspring Community's existence.
description: Advancing Women in Leadership Journal, Vol. 13 (2003)
Local Measurements of Magnetization in Mn12 Crystals
Creators: name: Avraham, Nurit
name: Stern, Ady
name: Suzuki, Yoko
name: Mertes, K. M.
name: Sarachik, M. P.
name: Zeldov, E.
name: Myasoedov, Y.
name: Shtrikman, H.
name: Rumberger, E. M.
name: Hendrickson, D. N.
name: Chakov, N. E.
name: Christou, G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The spatial profile of the magnetization of Mn12 crystals in a swept magnetic field applied along the easy axis is determined from measurements of the local magnetic induction along the sample surface using an array of Hall sensors. We find that the magnetization is not uniform inside the sample, but rather shows some spatial oscillations which become more prominent around the resonance field values. Moreover, it appears that different regions of the sample are at resonance at different values of the applied field and that the sweep rate of the internal magnetic induction is spatially non-uniform. We present a model which describes the evolution of the non-uniformities as a function of the applied field. Finally we show that the degree of non-uniformity can be manipulated by sweeping the magnetic field back and forth through part of the resonance.
description: 6 pages, 5 figures; A typo was corrected in Eq. (8)
The Price of Success: Senior Academic Women's Stress and Life Choices
Creators: name: Gerdes, Eugenia Proctor
Publisher: name: Advancing Women in Leadership Journal
Year: 2017

description: The fact that stress has a detrimental effect on health and well-being is welldocumented, although the complex relationships are far from delineated. One major controversy involves whether women's traditional roles or the higher status professional and leadership positions, held predominantly by men, are more stressful for women. Although some argue that women will suffer more stressrelated disorders as they move into high pressure jobs or as they combine work and family roles, the preponderance of data show that women are least healthy when they hold traditional family roles alone (see Barnett & Hyde, 2001). Even so, the same work environment can be more detrimental for women than for men if the expectations of that environment are structured more appropriately for men than for women (see Gerdes, 1995). Higher education is just such a traditionally male environment; and it is an important environment to examine because of the increasing presence of women as faculty and administrators, and because higher education itself is more than a venue for women's leadership and success. Institutions of higher learning prepare the men and women who become leaders across our society, and higher education arguably represents a society's highest potential for "preserving, transmitting and enlarging on what is best in the culture" (Farley, 1990, p. 194)
description: Advancing Women in Leadership Journal, Vol. 13 (2003)
Fabrication and characterization of efficiency and radiation tolerance of 3D diamond detectors
Creators: name: Sciortino, S.
name: Lagomarsino, S.
name: Bellini, M.
name: Corsi, C.
name: Cindro, V.
name: Kanxheri, K.
name: Morozzi, A.
name: Passeri, D.
name: Servoli, L.
name: Berdermann, E.
name: Schmidt, C. J.
name: Kis, M.
name: Träger, M.
name: Visinka, R.
name: Schreck, M.
name: Gsell, S.
name: Fischer, M.
Publisher: name: GSI Helmholtzzentrum fuer Schwerionenforschung, Darmstadt
Year: 2015
Subjects: Physics

description: GSI Scientific Report 2014 - GSI Report 2015-1
Imaging of dislocation bundles by micro-Raman line width mapping to assess the structural quality of heteroepitaxial diamond for detector applications
Creators: name: Mayr, M.
name: Fischer, M.
name: Gsell, S.
name: Stehl, C.
name: Schreck, M.
name: Berdermann, E.
Publisher: name: GSI Helmholtzzentrum fuer Schwerionenforschung, Darmstadt
Year: 2015
Subjects: Physics

description: GSI Scientific Report 2014 - GSI Report 2015-1
When the Wrong Woman Wins: Building Bullies and Perpetuating Patriarch
Creators: name: Brunner, Penelope W.
name: Costello, Melinda L.
Publisher: name: Advancing Women in Leadership Journal
Year: 2017

description: Some women are not good managers; and that is exactly why some companies keep them. For 30 years, researchers and working women have watched the progression of females into America's corporate management positions, and in their examination of the glass ceiling phenomenon, Corsun and Costen (2001) report that 40% of US executives, managers, and administrators are now women. During the early years of the women's movement, it was hypothesized that as the number of women entering the working public increased, a feminization or softening of business organizations would also occur. Publications such as Helgesen's (1990) The Female Advantage, Helgesen's (1995) The Web of Inclusion, and Rosener's (1990) "Ways Women Lead" led us to believe that kinder, gentler, and nurturing environments fostered by humane, caring, and intuitive leaders were developing. Multiculturalism and diversity were the expected outcomes.
description: Advancing Women in Leadership Journal, Vol. 13 (2003)
Trade and economic cooperation of Ukraine: current operational situation and prospects for further development
Creators: name: Аrtiukhova Nadiia
Publisher: name: Colloquium-journal
Year: 2019
Subjects: trade and economic cooperation
current state
operational situation
prospects
trends
national interests
national security.

description: In the paper the analysis of current operational situation in the sphere of trade and economic cooperation of Ukraine is performed. The definition of the concept “operational environment in the context of protecting national interests in the sphere of trade and economic cooperation of Ukraine” is offered. Current state of military and technical cooperation of Ukraine with foreign partners with regard to the import / export of military goods, is analyzed. On the basis of the obtained results the specific features and basic trends of the development of the above mentioned sphere of social relations are defined in the context of protecting the national interests of Ukraine.
Mott--Hubbard and Anderson Transitions in Dynamical Mean--Field Theory
Creators: name: Byczuk, Krzysztof
name: Hofstetter, Walter
name: Vollhardt, Dieter
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: The Anderson--Hubbard Hamiltonian at half--filling is investigated within dynamical mean--field theory at zero temperature. The local density of states is calculated by taking the geometric and arithmetic mean, respectively. The non--magnetic ground state phase diagrams obtained within the different averaging schemes are compared.
description: 2 pages, 2 figures, SCES2004 contribution
Project status of the new setting generation system for GSI and FAIR
Creators: name: Ondreka, D.
name: Kraus, I.
name: Liebermann, H.
name: Schlei, B.
Publisher: name: GSI Helmholtzzentrum fuer Schwerionenforschung, Darmstadt
Year: 2015
Subjects: Physics

description: GSI Scientific Report 2014 - GSI Report 2015-1
Teaching Under a Glass Ceiling: A Study of Gender Equity in Federal Education Career Fields
Creators: name: Baker, Bud
name: Graham, Scott
name: Williams, Scott
Publisher: name: Advancing Women in Leadership Journal
Year: 2017

description: Consider this picture: You are on the ground floor of a building, one of those modern palaces where balconied floors surround a central atrium reaching all the way to the roof. As you gaze upward, you can see fifteen floors of the building, all containing the expected level of activity: people are walking, alone and in groups, glass elevators are gliding up and down, a few people lean on the balcony railings, admiring the beauty of the architecture.
description: Advancing Women in Leadership Journal, Vol. 13 (2003)
Predicting Polymer Brush Behavior in Solvents using the Steepest-Entropy-Ascent Quantum Thermodynamic Framework
Creators: name: McDonald, Jared
name: von Spakovsky, Michael R.
name: Reynolds, William T.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The steepest-entropy-ascent quantum thermodynamic (SEAQT) framework is utilized to study the effects of temperature on polymer brushes. The brushes are represented by a discrete energy spectrum and energy degeneracies obtained through the Replica-Exchange Wang-Landau algorithm. The SEAQT equation of motion is applied to the density of states to establish a unique kinetic path from an initial thermodynamic state to a stable equilibrium state. The kinetic path describes the brush's evolution in state space as it interacts with a thermal reservoir. The predicted occupation probabilities along the kinetic path are used to determine expected thermodynamic and structural properties. The polymer density profile of a polystyrene brush in cyclohexane solvent is predicted using the equation of motion, and it agrees qualitatively with experimental density profiles. The Flory-Huggins parameter chosen to describe brush-solvent interactions affects the solvent distribution in the brush but has minimal impact on the polymer density profile. Three types of non-equilibrium kinetic paths with differing amounts of entropy production are considered: a heating path, a cooling path, and a heating-cooling path. Properties such as tortuosity, radius of gyration, brush density, solvent density, and brush chain conformations are calculated for each path.
description: 37 pages, 19 figures
Liability to prosecution for a crime of terrorism under the Criminal Code of the Kyrgyz Republic
Creators: name: Serebrennikova A., V.
name: Lebedev M., V.
Publisher: name: Colloquium-journal
Year: 2019
Subjects: Terrorism
Criminal Code of the Kyrgyz Republic
terrorist act
criminal law of Kyrgyzstan
terrorist
crimes of terrorism
a terrorist organization.

description: Terrorism is an ideology of violence and total destruction, and for that reason, the achievement of any goal, whether it is political, commercial, religious or otherwise, carried out through the terrorist act and other terrorist crimes commission, in no event shall be justified. During the rapid globalization and integration period, terrorism has long broken through the countries diving borders, and terrorist organizations have a link with organized criminality. Thereby, from our point of view, norms and measures for counterterrorism efforts should be developed by the entire world community. This challenging task is also complicated by the fact that it is also necessary to take into account the specifics of the legal culture and national legislation of separate countries.
Crossing the Great Divide: Changing the Culture of Women Through Gender Equity in Mathematics Teaching and Learning
Creators: name: Polnick, Barbara
Publisher: name: Advancing Women in Leadership Journal
Year: 2017

description: "Crossing the great divide" (of mathematics) involves a journey not unlike many arduous journeys. In order to reach your destination, the traveler must prepare for difficult road conditions and allow for alternate routes. In this presentation, consider gender equity as the destination and imagine there are a number of routes that we could take while making our journey. Recognizing that there may be different definitions for gender equity and the route you take depends on your definition. In their definition of gender equity, Grossman and Grossman (1994) state that "gender equity can be viewed in terms of treatment of students, gender differences in roles for which schools prepare students and gender disparities in educational outcomes" (p. 119). Koch and Irby (2002) describe gender equity as "to be fair and just toward both men and women, to show preference to neither, and concern for both" (p. 4). Walker and Foote (2001) define gender equity within a culture to mean "all individuals having freedom from limits imposed by self or society that would prohibit both males and females from pursuing the fields of knowledge and skills suited for them" (p. 101). Others describe gender equity in terms of the educational environment, one in which individuals have not only opportunities, but real efforts are made to equalize, reform, and improve (Nash & Dougherty, 1991). Using these definitions, gender equity can be viewed as a subset of a larger set identified as educational equity.
description: Advancing Women in Leadership Journal, Vol. 12 (2012)
Single-shot error correction of three-dimensional homological product codes
Creators: name: Quintavalle, Armanda O.
name: Vasmer, Michael
name: Roffe, Joschka
name: Campbell, Earl T.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Single-shot error correction corrects data noise using only a single round of noisy measurements on the data qubits, removing the need for intensive measurement repetition. We introduce a general concept of confinement for quantum codes, which roughly stipulates qubit errors cannot grow without triggering more measurement syndromes. We prove confinement is sufficient for single-shot decoding of adversarial errors and linear confinement is sufficient for single-shot decoding of local stochastic errors. Further to this, we prove that all three-dimensional homological product codes exhibit confinement in their $X$-components and are therefore single-shot for adversarial phase-flip noise. For local stochastic phase-flip noise, we numerically explore these codes and again find evidence of single-shot protection. Our Monte Carlo simulations indicate sustainable thresholds of $3.08(4)\%$ and $2.90(2)\%$ for 3D surface and toric codes respectively, the highest observed single-shot thresholds to date. To demonstrate single-shot error correction beyond the class of topological codes, we also run simulations on a randomly constructed 3D homological product code.
Switchable domains in point contacts based on transition metal tellurides
Creators: name: Naidyuk, Yu. G.
name: Bashlakov, D. L.
name: Kvitnitskaya, O. E.
name: Piening, B. R.
name: Shipunov, G.
name: Efremov, D. V.
name: Aswartham, S.
name: Büchner, B.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report resistive switching in voltage biased point contacts (PCs) based on series of van der Waals transition metals tellurides (TMTs) such as MeTe2 (Me=Mo, W) and TaMeTe4 (Me= Ru, Rh, Ir). The switching occurs between a low resistive "metallic-type" state, which is the ground state, and a high resistive "semiconducting-type" state by applying certain bias voltage (<1V), while reverse switching takes place by applying voltage of opposite polarity. The origin of the effect can be formation of domain in PC core by applying a bias voltage, when a strong electric field (about 10kV/cm) modifies the crystal structure and controls its polarization. In addition to the discovery of the switching effect in PCs, we also suggest a simple method of material testing before functionalizing them, which offers a great advantage in finding suitable novel substances. The new functionality of studied TMTs arising from switchable domains in submicron hetero-structures that are promising, e.g., for non-volatile resistive random access memory (RRAM) engineering.
description: 8 pages, 4 figs., supplement with 8 figs. V2 some text revision
The Lie algebra of the lowest transitively differential group of degree three
Creators: name: Grundland, Alfred Michel
name: Marquette, Ian
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We investigate the real Lie algebra of first-order differential operators with polynomial coefficients, which is subject to the following requirements. (1) The Lie algebra should admit a basis of differential operators with homogeneous polynomial coefficients of degree up to and including three. (2) The generator of the algebra must include the translation operators $\partial_k$ for all the variables $x_1$,...,$x_k$. (3) The Lie algebra is the smallest indecomposable Lie algebra satisfying (1) and (2). It turns out to be a 39-dimensional Lie algebra in six variables ($k=6$) and the construction of this algebra is also the simplest possible case in the general construction of the Lie algebras of the transitively differential groups introduced by Guillemin and Sternberg in 1964 involving the coefficients of degree 3. Those algebras and various subalgebras have similarities with algebras related to different applications in physics such as those of the Schrödinger, Conformal and Galilei transformation groups with and without central extension. The paper is devoted to the presentation of the structure and different decompositions of the Lie algebra under investigation. It is also devoted to the presentation of relevant Lie subalgebras and the construction of their Casimir invariants using different methods. We will rely, in particular, on differential operator realizations, symbolic computation packages, the Berezin bracket and virtual copies of the Lie algebras.
Additional file 1 of Quantum dots as targeted doxorubicin drug delivery nanosystems in human lung cancer cells
Creators: name: Ruzycka-Ayoush, Monika
name: Kowalik, Patrycja
name: Kowalczyk, Agata
name: Bujak, Piotr
name: Nowicka, Anna M.
name: Wojewodzka, Maria
name: Kruszewski, Marcin
name: Grudzinski, Ireneusz P.
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Physiology
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Cancer

description: Additional file 1
Hartree-Fock Interactions in the Integer Quantum Hall Effect
Creators: name: Römer, R. A.
name: Sohrmann, C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We report on numerical studies into the interplay of disorder and electron-electron interactions within the integer quantum Hall regime, where the presence of a strong magnetic field and two-dimensional confinement of the electronic system profoundly affects thermodynamic and transport properties. We emphasise the behaviour of the electronic compressibility, the local density of states, and the Kubo conductivity. Our treatment of the electron-electron interactions relies on the Hartree-Fock approximation so as to achieve system sizes comparable to experimental situations. Our results clearly exhibit manifestations of various interaction-mediated features, such as non-linear screening, local charging, and g-factor enhancement, implying the inadequacy of independent-particle models for comparison with experimental results.
description: 13 Wiley-VCH LaTeX pages with 8 figures, style files included
Enhanced Thermoelectric Properties By Embedding Fe Nanoparticles Into CrN Films For Energy Harvesting Applications
Creators: name: Pankratova, Daria
name: Yusupov, Khabib
name: Vomiero, Alberto
name: Honnali, Sanath Kumar
name: Boyd, Robert
name: Ekeroth, Sebastian
name: Helmersson, Ulf
name: Azina, Clio
name: Febvrier, Arnaud le
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Nanostructured materials and nanocomposites have shown great promise for improving the efficiency of thermoelectric materials. Herein, Fe nanoparticles were imbedded into a CrN matrix by combining two physical vapor deposition approaches, namely high-power impulse magnetron sputtering and a nanoparticle gun. The combination of these techniques allowed the formation of nanocomposites in which the Fe nanoparticles remained intact without intermixing with the matrix. The electrical and thermal transport properties of the nanocomposites were investigated and compared to a monolithic CrN film. The measured thermoelectric properties revealed an increase in the Seebeck coefficient, with a decrease of hall carrier concentration and an increase of the electron mobility which could be explained by energy filtering by internal phases created at the NP/matrix interface. The thermal conductivity of the final nanocomposite was reduced from 4.8 W m-1K-1 to a minimum of 3.0 W m-1K-1 W. This study shows prospects for the nanocomposite synthesis process using nanoparticles and its use in improving the thermoelectric properties of coatings.
description: 5 figures / 2 table
Additional file 1 of Development and validation of the predictive risk of death model for adult patients admitted to intensive care units in Japan: an approach to improve the accuracy of healthcare quality measures
Creators: name: Endo, Hideki
name: Shigehiko Uchino
name: Hashimoto, Satoru
name: Aoki, Yoshitaka
name: Hashiba, Eiji
name: Hatakeyama, Junji
name: Hayakawa, Katsura
name: Ichihara, Nao
name: Irie, Hiromasa
name: Kawasaki, Tatsuya
name: Kumasawa, Junji
name: Kurosawa, Hiroshi
name: Nakamura, Tomoyuki
name: Ohbe, Hiroyuki
name: Okamoto, Hiroshi
name: Hidenobu Shigemitsu
name: Tagami, Takashi
name: Takaki, Shunsuke
name: Takimoto, Kohei
name: Uchida, Masatoshi
name: Miyata, Hiroaki
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics

description: Additional file 1: Table S1 Coefficients of models 1 and 2. R code for fitting models 1, 2, and 3. Fig. S1 EWMA charts for the 44 ICUs (recalibrated with the method used in model 3). Sequential admissions are presented on the x-axis. The red lines show the exponentially weighted moving average of mortality, with starting points of the average mortality in each ICU during the study period and with a weight of 0.005 on the latest data. The light and dark green lines are the control limits representing two- and three-standard deviations, respectively. EWMA, exponentially weighted moving average; ICU, intensive care unit
Absolute and relative choreographies in the problem of point vortices moving on a plane
Creators: name: Borisov, A. V.
name: Mamaev, I. S.
name: Kilin, A. A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We obtained new periodic solutions in the problems of three and four point vortices moving on a plane. In the case of three vortices, the system is reduced to a Hamiltonian system with one degree of freedom, and it is integrable. In the case of four vortices, the order is reduced to two degrees of freedom, and the system is not integrable. We present relative and absolute choreographies of three and four vortices of the same intensity which are periodic motions of vortices in some rotating and fixed frame of reference, where all the vortices move along the same closed curve. Similar choreographies have been recently obtained by C. Moore, A. Chenciner, and C. Simo for the n-body problem in celestial mechanics [6, 7, 17]. Nevertheless, the choreographies that appear in vortex dynamics have a number of distinct features.
description: 11 pages, 6 figures
Inductive and divisional posets
Creators: name: Pagaria, Roberto
name: Pismataro, Maddalena
name: Tran, Tan Nhat
name: Vecchi, Lorenzo
Publisher: name: arXiv
Year: 2023
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: Primary 06A07, Secondary 52C35

description: We call a poset factorable if its characteristic polynomial has all positive integer roots. Inspired by inductive and divisional freeness of a central hyperplane arrangement, we introduce and study the notion of inductive posets and their superclass of divisional posets. It then motivates us to define the so-called inductive and divisional abelian (Lie group) arrangements, whose posets of layers serve as the main examples of our posets. Our first main result is that every divisional poset is factorable. Our second main result shows that the class of inductive posets contains strictly supersolvable posets, the notion recently introduced due to Bibby and Delucchi (2022). This result can be regarded as an extension of a classical result due to Jambu and Terao (1984), which asserts that every supersolvable hyperplane arrangement is inductively free. Our third main result is an application to toric arrangements, which states that the toric arrangement defined by an arbitrary ideal of a root system of type $A$, $B$ or $C$ with respect to the root lattice is inductive.
description: 28 pages, typos in Acknowledgments corrected
Metastability in graded and step like variation of field and anisotropy of the Blume-Capel ferromagnet
Creators: name: Naskar, Moumita
name: Acharyya, Muktish
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The metastable behaviour of two dimensional anisotropic Blume-Capel ferromagnet, under the influence of graded and stepped like variations of magnetic field, has been investigated by extensive Monte Carlo simulation using Metropolis single spin flip algorithm. Starting from the initial perfectly ordered state, reversal of magnetisation has been studied in presence of the field. Metastable lifetime or the reversal time of magnetisation for the system having uniform anisotropy and in the presence of both graded and stepped field has been studied. Also the same has been explored for a {\it graded and stepped anisotropic system} in presence of a uniform field. Finite size effect is analyzed for the variation of reversal time with gradient of field ($G_h$) and a scaling relation $\langle τ\rangle \sim L^{-β} f(G_h L^α)$ is proposed. Spatial variation of density profile for the projection states (i.e., +1, 0 and -1) has also been studied at the moment of reversal of magnetisation. The spatial variation of the number of spin flips per site is studied. Motion of the interface (or domain wall) with the gradient of field and gradient of anisotropy are investigated and are found to follow the hyperbolic tangent like behaviours in both cases. Since, both the anisotropy and the applied field have significant impact on the metastable lifetime, an interesting competitive scenario is observed for a {\it graded anisotropic system in graded field} and a {\it stepped anisotropic system in stepped field}. A line of marginal competition has been found out for both the cases separating the regions of field dominated reversal and anisotropy dominated reversal. The decay of the metastable volume fraction was found to follow the Avrami's law. The mean reversal time was observed to decrease monotonically across the phase boundary of the ferro-para transition.
description: 7 References added, 3 Figs and 1 table added with more results
Simple model of market share dynamics based on clients' firm-switching decisions
Creators: name: Hickey, Joseph
Publisher: name: arXiv
Year: 2023
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Theoretical Economics (econ.TH)
subject: FOS: Physical sciences
subject: FOS: Economics and business

description: Firms compete for clients, creating distributions of market shares ranging from domination by a few giant companies to markets in which there are many small firms. These market structures evolve in time, and may remain stable for many years before a new firm emerges and rapidly obtains a large market share. We seek the simplest realistic model giving rise to such diverse market structures and dynamics. We focus on markets in which every client adopts a single firm, and can, from time to time, switch to a different firm. Examples include markets of cell phone and Internet service providers, and of consumer products with strong brand identification. In the model, the size of a particular firm, labelled $i$, is equal to its current number of clients, $n_i$. In every step of the simulation, a client is chosen at random, and then selects a firm from among the full set of firms with probability $p_i = (n_i^α+ β)/K$, where $K$ is the normalization factor. Our model thus has two parameters: $α$ represents the degree to which firm size is an advantage ($α$ > 1) or disadvantage ($α$ < 1), relative to strict proportionality to size ($α$ = 1), and $β$ represents the degree to which small firms are viable despite their small size. We postulate that $α$ and $β$ are determined by the regulatory, technology, business culture and social environments. The model exhibits a phase diagram in the parameter space, with different regions of behaviour. At the large $α$ extreme of the phase diagram, a single dominant firm emerges, whose market share depends on the value of $β$. At the small $α$ extreme, many firms with small market shares coexist, and no dominant firm emerges. In the intermediate region, markets are divided among a relatively small number of firms, each with sizeable market share but with distinct rankings, which can persist for long [...]
description: 30 pages, 12 figures, 2 appendices
Spin precession in the Dvali-Gabadadze-Porrati braneworld scenario
Creators: name: Iorio, Lorenzo
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this letter we work out the secular precession of the spin of a gyroscope in geodesic motion around a central mass in the framework of the Dvali-Gabadadze-Porrati multidimensional gravity model. Such an effect, which depends on the mass of the central body and on the orbit radius of the gyroscope, contrary to the precessions of the orbital elements of the orbit of a test body, is far too small to be detected.
description: Latex, 5 pages, no figures, no tables, 10 references
Women Transitioning into Leadership: Gender as both Help and Hindrance
Creators: name: Hudson, Martha B.
name: Williamson, Ronald D.
Publisher: name: Advancing Women in Leadership Journal
Year: 2017

description: Newly hired school leaders are confronted by the weight of tradition and prior practice (Hartzell, Williams, & Nelson, 1995; Marshall, 1992). They are frequently counseled to adopt "old" norms about priorities and decision-making. Some find that to gain acceptance they must adhere to values and leadership behaviors counter to those that attracted them to school leadership or were espoused in their preparation (Hartzel et al., 1995; Marshall, 1992). This paper reports on an investigation of the impact of socialization on new assistant principals, particularly women graduates of a redesigned school leadership preparation program in North Carolina. The subjects of this study were women, therefore the investigation also explored the impact that genderassociated leadership preferences had on their socialization.
description: Advancing Women in Leadership Journal, Vol. 12 (2012)
Exploring non-linear correlators on AGP
Creators: name: Khamoshi, Armin
name: Chen, Guo P.
name: Henderson, Thomas M.
name: Scuseria, Gustavo E.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Single-reference methods such as Hartree-Fock-based coupled cluster theory are well known for their accuracy and efficiency for weakly correlated systems. For strongly correlated systems, more sophisticated methods are needed. Recent studies have revealed the potential of the antisymmetrized geminal power (AGP) as an excellent initial reference for the strong correlation problem. While these studies improved on AGP by linear correlators, we explore some non-linear exponential ansatze in this paper. We investigate two approaches in particular. Similar to Phys. Rev. B 91, 041114(R) (2015), we show that the similarity transformed Hamiltonian with a Hilbert-space Jastrow operator is summable to all orders and can be solved over AGP by projecting Schrodinger's equation. The second approach is based on approximating the unitary pair-hopper ansatz recently proposed for application on a quantum computer. We report benchmark numerical calculations against the ground state of the pairing Hamiltonian for both of these approaches.
Towards Accurate Field-Level Inference of Massive Cosmic Structures
Creators: name: Stopyra, Stephen
name: Peiris, Hiranya V.
name: Pontzen, Andrew
name: Jasche, Jens
name: Lavaux, Guilhem
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We investigate the accuracy requirements for field-level inference of cluster and void masses using data from galaxy surveys. We introduce a two-step framework that takes advantage of the fact that cluster masses are determined by flows on larger scales than the clusters themselves. First, we determine the integration accuracy required to perform field-level inference of cosmic initial conditions on these large scales, by fitting to late-time galaxy counts using the Bayesian Origin Reconstruction from Galaxies (BORG) algorithm. A 20-step COLA integrator is able to accurately describe the density field surrounding the most massive clusters in the Local Super-Volume ($<135\,h^{-1}\,\mathrm{Mpc}$), but does not by itself lead to converged virial mass estimates. Therefore we carry out `posterior resimulations', using full $N$-body dynamics while sampling from the inferred initial conditions, and thereby obtain estimates of masses for nearby massive clusters. We show that these are in broad agreement with existing estimates, and find that mass functions in the Local Super-Volume are compatible with $Λ$CDM.
description: 14 pages, 7 figures. Updated to match version accepted by MNRAS (published 2023/10/18). Minor changes and 1 new figure
Feedback-Based Dynamic Feature Selection for Constrained Continuous Data Acquisition
Creators: name: Sahin, Alp
name: Zeng, Xiangrui
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Relevant and high-quality data are critical to successful development of machine learning applications. For machine learning applications on dynamic systems equipped with a large number of sensors, such as connected vehicles and robots, how to find relevant and high-quality data features in an efficient way is a challenging problem. In this work, we address the problem of feature selection in constrained continuous data acquisition. We propose a feedback-based dynamic feature selection algorithm that efficiently decides on the feature set for data collection from a dynamic system in a step-wise manner. We formulate the sequential feature selection procedure as a Markov Decision Process. The machine learning model performance feedback with an exploration component is used as the reward function in an $ε$-greedy action selection. Our evaluation shows that the proposed feedback-based feature selection algorithm has superior performance over constrained baseline methods and matching performance with unconstrained baseline methods.
description: to be published in ACC 2021
Additional file 13 of Treatment- and population-specific genetic risk factors for anti-drug antibodies against interferon-beta: a GWAS
Creators: name: Andlauer, Till F. M.
name: Link, Jenny
name: Martin, Dorothea
name: Ryner, Malin
name: Hermanrud, Christina
name: Grummel, Verena
name: Auer, Michael
name: Hegen, Harald
name: Aly, Lilian
name: Gasperi, Christiane
name: Knier, Benjamin
name: Müller-Myhsok, Bertram
name: Jensen, Poul Erik Hyldgaard
name: Sellebjerg, Finn
name: Kockum, Ingrid
name: Olsson, Tomas
name: Pallardy, Marc
name: Spindeldreher, Sebastian
name: Deisenhammer, Florian
name: Fogdell-Hahn, Anna
name: Hemmer, Bernhard
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Pharmacology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases
subject: Plant Biology
subject: 60506 Virology

description: Additional file 13. Regional association plots of the top GWAS variants in the analysis across IFNβ preparations. Regional association plots of variants from the GWAS generated using LocusZoom v1.4 and the 1000 Genomes 1000G_Nov2014 EUR reference panel [72]. The color of dots indicates LD with the lead variant (pink). Gray dots represent signals with missing LD r2 values. If no LD information was present in the database on the top variant, LD with the variant showing the second-lowest p-value is indicated. The gray line indicates genome-wide significance. cM: centimorgan, chr: chromosome, Mb: mega base pairs.
Dense bubble flow in a silo: an unusual flow of a dispersed medium
Creators: name: Bertho, Yann
name: Becco, Christophe
name: Vandewalle, Nicolas
Publisher: name: arXiv
Year: 2005
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The dense flow of air bubbles in a two-dimensional silo (through an aperture D) filled with a liquid is studied experimentally. A particle tracking technique has been used to bring out the main properties of the flow: displacements of the bubbles, transverse and axial velocities. The behavior of the air bubbles is observed to present similarities with non-deformable solid grains in a granular flow. Nevertheless, a correlation between the bubble velocities and their deformations has been evidenced. Moreover, a new discharge law (Beverloo-like) must be considered for such a system, where the flow rate is observed to vary as D^{1/2} and depends on the deformability of the particles.
description: 5 pages, 6 figures
Making It Work: Women's Ways of Leading
Creators: name: Harris, Charlotte Matthews
name: Smith, Penny L
name: Hale, Rosalind Pijeaux
Publisher: name: Advancing Women in Leadership Journal
Year: 2017

description: An examination of women in leadership from a feminine perspective or point of view reveals that a female organizational culture exists and that women exhibit ways of leading that are distinctively different from the ways men lead. Women's ways of leading are consistent with recent trends in leadership research and theory and provide a model for education that could lead to "a more caring community and a safer world" (Noddings, 1991, p. 70). Yet, historically, society has been viewed as divided into two domains""the public sphere and the private sphere. Predominantly male, the public sphere "demands independence, rationality, and self-reliance," whereas the private sphere, predominantly female, reflects "dependence, emotionality, and support" (Forisha, 1981, p. 10). That which is public is primary, and that which is private is secondary. Since women have been relegated to the private sphere, their values and experiences have not been considered until recently.
description: Advancing Women in Leadership Journal, Vol. 12 (2012)
Context Factors Related to Women Attrition From a Graduate Science Program:
Creators: name: Ferreira, Maria Madalena
Publisher: name: Advancing Women in Leadership Journal
Year: 2017

description: Seeing that the average brain-weight of women is about five ounces less than that of men, on merely anatomical grounds we should be prepared to expect a marked inferiority of intellectual power in the former. (Romanes, 1887, p. 383) Arguments such as this one, seeking to bar women's access to higher education, were still common in the popular science press by the end of the 19th century. Yet, in this unwelcoming climate, many women made important contributions to science (Rossiter, 1974). Some of them, Jane Colden (1724-1766), Maria Mitchell (1818-1889), and Mary Somerville (1780-1872), were mostly self-taught or learned science while helping their scientist fathers (Rossiter, 1974). However, many at the time dismissed these early women scientists as aberrations as illustrated by an article in an 1887 issue of The Popular Science Monthly:
description: Advancing Women in Leadership Journal, Vol. 12 (2012)
Hybrid Characteristics: 3D radiative transfer for parallel adaptive mesh refinement hydrodynamics
Creators: name: Rijkhorst, Erik-Jan
name: Plewa, Tomasz
name: Dubey, Anshu
name: Mellema, Garrelt
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have developed a three-dimensional radiative transfer method designed specifically for use with parallel adaptive mesh refinement hydrodynamics codes. This new algorithm, which we call hybrid characteristics, introduces a novel form of ray tracing that can neither be classified as long, nor as short characteristics, but which applies the underlying principles, i.e. efficient execution through interpolation and parallelizability, of both. Primary applications of the hybrid characteristics method are radiation hydrodynamics problems that take into account the effects of photoionization and heating due to point sources of radiation. The method is implemented in the hydrodynamics package FLASH. The ionization, heating, and cooling processes are modelled using the DORIC ionization package. Upon comparison with the long characteristics method, we find that our method calculates the column density with a similarly high accuracy and produces sharp and well defined shadows. We show the quality of the new algorithm in an application to the photoevaporation of multiple over-dense clumps. We present several test problems demonstrating the feasibility of our method for performing high resolution three-dimensional radiation hydrodynamics calculations that span a large range of scales. Initial performance tests show that the ray tracing part of our method takes less time to execute than other parts of the calculation (e.g. hydrodynamics and adaptive mesh refinement), and that a high degree of efficiency is obtained in parallel execution. Although the hybrid characteristics method is developed for problems involving photoionization due to point sources, the algorithm can be easily adapted to the case of more general radiation fields.
description: 15 pages, 15 figures, submitted to A&A