cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Magnetic winding and turbulence in ultra-hot Jupiters
Creators: name: Soriano-Guerrero, Clàudia
name: Viganò, Daniele
name: Perna, Rosalba
name: Akgün, Taner
name: Palenzuela, Carlos
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: While magnetism in exoplanets remains largely unknown, Hot Jupiters have been considered as natural candidates to harbour intense magnetic fields, both due to their large masses and their high energy budgets coming from irradiation as a consequence of their vicinity to their host stars. In this work we perform MHD simulations of a narrow day-side atmospheric column of ultra-hot Jupiters, suitable for very high local temperatures (T > 3000 K). Since the conductivity in this regime is very high, the dominant effect is winding due to the intense zonal winds. By including a forcing that mimics the wind profiles obtained in global circulation models, the shear layer induces a strong toroidal magnetic field (locally reaching hundreds of gauss), supported by meridional currents. Such fields and the sustaining currents don$'$t depend on the internally generated field, but are all confined in the thin (less than a scale-height) shear layer around 1 bar. Additionally, we add random perturbations that induce turbulent motions, which lead to further (but much smaller) magnetic field generation to a broader range of depths. These results allow an evaluation of the currents induced by the atmospheric dynamo. Although here we use ideal MHD and the only resistivity comes from the numerical scheme, we estimate a-posteriori the amount of Ohmic heat deposited in the outer layers, which could be employed in evolutionary models for Hot Jupiters' inflated radii.
description: Accepted for publication in MNRAS
Photometric activity of CQ Tau on the time interval of 125 years
Creators: name: Grinin, V. P.
name: Tambovtseva, L. V.
name: Barsunova, O. Yu.
name: Shakhovskoy, D. N.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences
subject: J.2
subject: 86-04

description: The star CQ Tau belongs to the family of UX Ori type stars. It has very complex photometric behavior and complex structure of the circumstellar environment. In our paper we constructed the historical 125 years light curve of this star basing on the published photometric observations. It follows that besides a random component characteristic of UX Ori type stars, the large amplitude periodic component with the 10 year period is also present. Its existence was suspected earlier in [11]. New observations confirm its reality. It points to an existence of the second component close to the star. The density waves and matter flows caused by the companion motion lead to periodic changes in the circumstellar extinction and brightness of the star. This result is discussed in context of the recent observations of CQ Tau with high angular resolution.
description: 7 pages, 4 figures, accepted by Astrophysics
Visual odometry of Rhinecanthus aculeatus depends on the visual density of the environment.
Creators: name: Karlsson, Cecilia
name: Willis, Jay
name: Patel, Matishalin
name: De Perera, Theresa Burt
Publisher: name: Apollo - University of Cambridge Repository
Year: 2022
Subjects: Article
/631/601/18
/631/601/1737
article

description: Funder: Oxford University | St. John's College, University of Oxford (St John's College, University of Oxford); doi: https://doi.org/10.13039/501100000719
description: Funder: RCUK | Biotechnology and Biological Sciences Research Council (BBSRC); doi: https://doi.org/10.13039/501100000268
description: Distance travelled is a crucial metric that underpins an animal's ability to navigate in the short-range. While there is extensive research on how terrestrial animals measure travel distance, it is unknown how animals navigating in aquatic environments estimate this metric. A common method used by land animals is to measure optic flow, where the speed of self-induced visual motion is integrated over the course of a journey. Whether freely-swimming aquatic animals also measure distance relative to a visual frame of reference is unclear. Using the marine fish Rhinecanthus aculeatus, we show that teleost fish can use visual motion information to estimate distance travelled. However, the underlying mechanism differs fundamentally from previously studied terrestrial animals. Humans and terrestrial invertebrates measure the total angular motion of visual features for odometry, a mechanism which does not vary with visual density. In contrast, the visual odometer used by Rhinecanthus acuelatus is strongly dependent on the visual density of the environment. Odometry in fish may therefore be mediated by a movement detection mechanism akin to the system underlying the optomotor response, a separate motion-detection mechanism used by both vertebrates and invertebrates for course and gaze stabilisation.
Measuring spin in coalescing binaries of neutron stars showing double precursors
Creators: name: Kuan, Hao-Jui
name: Suvorov, Arthur G.
name: Kokkotas, Kostas D.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Gamma-ray bursts resulting from binary neutron-star mergers are sometimes preceded by precursor flares. These harbingers may be ignited by quasi-normal modes, excited by orbital resonances, shattering the stellar crust of one of the inspiralling stars up to $\gtrsim10$ seconds before coalescence. In the rare case that a system displays two precursors, successive overtones of either interface- or $g$-modes may be responsible for the overstrainings. Since the free-mode frequencies of these overtones have an almost constant ratio, and the inertial-frame frequencies for rotating stars are shifted relative to static ones, the spin frequency of the flaring component can be constrained as a function of the equation of state, the binary mass ratio, the mode quantum numbers, and the spin-orbit misalignment angle. As a demonstration of the method, we find that the precursors of GRB090510 hint at a spin frequency range of $2 \lesssim ν_{\star}/\text{Hz} \lesssim 20$ for the shattering star if we allow for an arbitrary misalignment angle, assuming $\ell=2$ $g$-modes account for the events.
description: 11 pages, 6 figures, 2 tables with an appendix containing 1 figure. Accepted for publication in A&A
title: Der Vampyr in den Pariser Friedhöfen; 1849
title: Ein höchst interessanter Criminalfall der neuesten Zeit; zunächst für Psychologen und Aerzte : Aus dem Französischen der Gazette des Tribunaux
titleType: Subtitle
Creators: name: (:Unav)
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2018

description: In Fraktur
Assessment of left atrial systolic dyssynchrony in paroxysmal atrial fibrillation and heart failure using cardiac magnetic resonance imaging: MESA study
Creators: name: Ciuffo, Luisa
name: Sharma, Ravi
name: Habibi, Mohammadali
name: Ambale Venkatesh, Bharath
name: Rosen, Boaz
name: Imai, Masamichi
name: Shea, Steven J. C.
name: McClelland, Robyn
name: Wu, Colin
name: Heckbert, Susan
name: Bluemke, David
name: Lima, Joao
Publisher: name: Columbia University
Year: 2015
Subjects: Heart failure
Heart--Diseases--Research
Atrial fibrillation

description: Background: Left atrial (LA) remodeling in response to cardiovascular and hemodynamic stress may precede atrial fibrillation (AF) and heart failure (HF). We hypothesized that LA systolic synchronous contraction as a functional measure of LA remodeling is deranged in patients with paroxysmal AF and HF. Methods: We performed a nested case-control analysis with 1:2 matching for 39 cases of paroxysmal AF (n=28, in sinus rhythm during cardiac magnetic resonance (CMR)) and HF (n=14, AF+HF; n=3) and 78 controls with similar demographic and clinical characteristics at the baseline (Table 1). LA circumferential (short axis) and longitudinal strain rate (horizontal long axis) were measured using Multi-modality Tissue Tracking (Toshiba, Japan) from short and long-axis cine CMR images. Circumferential LA systolic dyssynchrony among 18 LA segments (6 segments x 3 slices) was evaluated as; Standard Deviation (SD) of time to pre atrial contraction Strain rate (PreA Src) and Peak systolic strain rate (Peak Srac) (Figure 1). Similarly, longitudinal LA dyssynchrony parameters (among 6 segments) were: SD-Time to pre-atrial contraction strain rate (PreA SrL) and SD-Time to peak systolic strain rate (Peak-SraL). Wilcoxon-rank sum test (non-parametric) or two sample t-test (parametric) were used for comparison between the groups. Results: In participants during MESA exam 5 (age 74±8 years, 51.4% men), systolic circumferential dyssynchrony (SD-TP-PreA Src, msec) was significantly higher in the cases compared to controls (45.06 vs. 28.73, p<0.010). Similarly, case group had greater longitudinal dyssynchrony than controls; SD-TP PreA SrL (51.62 vs. 36.43, p=0.001) and SD-TP-Peak SraL (45.23 vs. 35.92, p=0.027) (Table 1). Conclusions: Patients with paroxysmal atrial fibrillation and heart failure have significantly higher LA circumferential and longitudinal systolic dyssynchrony compared to normal controls.
title: High Metabolic Dependence on Oxidative Phosphorylation Drives Sensitivity to Metformin Treatment in MLL/AF9 Acute Myeloid Leukemia
Creators: name: Liu, Longlong
name: Patnana, Pradeep Kumar
name: Xie, Xiaoqing
name: Frank, Daria
name: Nimmagadda, Subbaiah Chary
name: Rosemann, Annegret
name: Liebmann, Marie
name: Klotz, Luisa Hildegard
name: Opalka, Bertram
name: Khandanpour, Cyrus
Publisher: name: University of Muenster, Institutional Repository MIAMI
Year: 2022
Subjects: subject: 610 Medicine and health

description: Acute myeloid leukemia is a group of metabolic heterogeneous cancers, of which the long-term overall survival is still poor, especially in elderly patients. Targeting metabolic reprogramming in leukemic cells is becoming a promising strategy. The aim of our research was to explore the relation of genetic mutations with the metabolic phenotype and potential therapeutics to target metabolic pathway dependence. We confirmed the metabolic heterogeneity in AML cell lines and found the high dependence on oxidative phosphorylation in MLL/AF9 AML cells. Metformin could significantly repress the proliferation of MLL/AF9 AML cells by inhibiting oxidative phosphorylation.
description: Acute myeloid leukemia (AML) is a group of hematological cancers with metabolic heterogeneity. Oxidative phosphorylation (OXPHOS) has been reported to play an important role in the function of leukemic stem cells and chemotherapy-resistant cells and are associated with inferior prognosis in AML patients. However, the relationship between metabolic phenotype and genetic mutations are yet to be explored. In the present study, we demonstrate that AML cell lines have high metabolic heterogeneity, and AML cells with MLL/AF9 have upregulated mitochondrial activity and mainly depend on OXPHOS for energy production. Furthermore, we show that metformin repressed the proliferation of MLL/AF9 AML cells by inhibiting mitochondrial respiration. Together, this study demonstrates that AML cells with an MLL/AF9 genotype have a high dependency on OXPHOS and could be therapeutically targeted by metformin.
description: Finanziert durch den Open-Access-Publikationsfonds der Westfälischen Wilhelms-Universität Münster (WWU Münster).
Internal kinematics of GAIA DR3 wide binaries: anomalous behaviour in the low acceleration regime
Creators: name: Hernandez, X.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Classical Physics (physics.class-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: The {\it Gaia} eDR3 catalogue has recently been used to study statistically the internal kinematics of wide binary populations using relative velocities of the two component stars, $ΔV$, total binary masses, $m_{B}$, and separations, $s$. For $s \gtrsim 0.01$ pc, these binaries probe the low acceleration $a \lesssim 2a_{0}$ regime where gravitational anomalies usually attributed to dark matter are observed in the flat rotation curves of spiral galaxies, where $a_{0}\approx 1.2\times 10^{-10}$m s$^{-2}$ is the acceleration scale of MOND. Such experiments test the degree of generality of these anomalies, by exploring the same acceleration regime using independent astronomical systems of vastly smaller mass and size. A signal above Newtonian expectations has been observed when $a \lesssim 2a_{0}$, alternatively interpreted as evidence of a modification of gravity, or as due to kinematic contaminants; undetected stellar components, unbound encounters or spurious projection effects. Here I take advantage of the enhanced DR3 {\it Gaia} catalogue to perform a more rigorous study of the internal kinematics of wide binaries than what has previously been possible. Internally determined {\it Gaia} stellar masses and estimates of binary probabilities for each star using spectroscopic information, together with a larger sample of radial velocities, allow for a significant improvement in the analysis and careful exclusion of possible kinematic contaminants. Resulting $ΔV$ scalings accurately tracing Newtonian expectations for the high acceleration regime, but markedly inconsistent with these expectations in the low acceleration one, are obtained. A non-Newtonian low acceleration phenomenology is thus confirmed.
description: 16 pages, 10 figures. Accepted for publication in MNRAS
The Hubbard model beyond the two-pole approximation: a Composite Operator Method study
Creators: name: Avella, Adolfo
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Within the framework of the Composite Operator Method, a three-pole solution for the two-dimensional Hubbard model is presented and analyzed in detail. In addition to the two Hubbard operators, the operatorial basis comprises a third operator describing electronic transitions dressed by nearest-neighbor spin fluctuations. These latter, compared to charge and pair fluctuations, are assumed to be preeminent in the region of model-parameter space - small doping, low temperature and large on-site Coulomb repulsion - where one expects strong electronic correlations to dominate the physics of the system. This assumption and the consequent choice for the basic field, as well as the whole analytical approximation framework, have been validated through a comprehensive comparison with data for local and single-particle properties obtained by different numerical methods on varying all model parameters. The results systematically agree, both quantitatively and qualitatively, up to coincide in many cases. Many relevant features of the model, reflected by the numerical data, are exactly caught by the proposed solution and, in particular, the crossover between weak and intermediate-strong correlations as well as the shape of the occupied portion of the dispersion. A comprehensive comparison with other $n$-pole solutions is also reported in order to explore and possibly understand the reasons of such good performance.
description: 19 pages, 8 figures, 27 panels
Optimal Energy Consumption Model for Smart Grid Households with Energy Storage
Creators: name: Rajasekharan, Jayaprakash
name: Koivunen, Visa
Publisher: name: arXiv
Year: 2013
Subjects: subject: Other Computer Science (cs.OH)
subject: FOS: Computer and information sciences

description: In this paper, we propose to model the energy consumption of smart grid households with energy storage systems as an intertemporal trading economy. Intertemporal trade refers to transaction of goods across time when an agent, at any time, is faced with the option of consuming or saving with the aim of using the savings in the future or spending the savings from the past. Smart homes define optimal consumption as either balancing/leveling consumption such that the utility company is presented with a uniform demand or as minimizing consumption costs by storing energy during off-peak time periods when prices are lower and use the stored energy during peak time periods when prices are higher. Due to the varying nature of energy requirements of household and market energy prices over different time periods in a day, households face a trade-off between consuming to meet their current energy requirements and/or storing energy for future consumption and/or spending energy stored in the past. These trade-offs or consumption preferences of the household are modeled as utility functions using consumer theory. We introduce two different utility functions, one for cost minimization and another for consumption balancing/leveling, that are maximized subject to respective budget, consumption, storage and savings constraints to solve for the optimum consumption profile. The optimization problem of a household with energy storage is formulated as a geometric program for consumption balancing/leveling, while cost minimization is formulated as a linear programming problem. Simulation results show that the proposed model achieves extremely low peak to average ratio in the consumption balancing/leveling scheme with about 8% reduction in consumption costs and the least possible amount for electricity bill with about 12% reduction in consumption costs in the cost minimization scheme.
description: 26 pages, 9 figures, 34 equations
Additional file 1 of Reaching the unreachable: a mixed-method evaluation of multidimensional healthcare model addressing the healthcare service gaps in hard-to-reach Northern riverine Bangladesh
Creators: name: Sajib, Md Refat Uz Zaman
name: Hasan, Kamrul
name: Hayder, Tanvir
name: Hasan, A M Rumayan
name: Rahman, Md. Musfikur
name: Ether, Saraban
name: Rahman, Atia
name: Tanwi, Tania Sultana
name: Rahman, Fariya
name: Sayeed, Abu
name: Bari, Sanwarul
name: Rahman, Syed Moshfiqur
name: Arifeen, Shams El
name: Ahmed, Anisuddin
Publisher: name: figshare
Year: 2025
Subjects: Medicine
Biotechnology
Science Policy

description: Supplementary Material 1
Pulsation analysis and its impact on primary transit modeling in WASP-33
Creators: name: von Essen, C.
name: Czesla, S.
name: Wolter, U.
name: Breger, M.
name: Herrero, E.
name: Mallonn, M.
name: Ribas, I.
name: Strassmeier, K. G.
name: Morales, J. C.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: To date, WASP-33 is the only delta Scuti star known to be orbited by a hot Jupiter. The pronounced stellar pulsations, showing periods comparable to the primary transit duration, interfere with the transit modeling. Therefore our main goal is to study the pulsation spectrum of the host star to redetermine the orbital parameters of the system by means of pulsation-cleaned primary transit light curves. Between August 2010 and October 2012 we obtained 457 hours of photometry of WASP-33 using small and middle-class telescopes located mostly in Spain and in Germany. Our observations comprise the wavelength range between the blue and the red, and provide full phase coverage of the planetary orbit. After a careful detrend, we focus our pulsation studies in the high frequency regime, where the pulsations that mostly deform the primary transit exist. The data allow us to identify, for the first time in the system, eight significant pulsation frequencies. The pulsations are likely associated with low-order p-modes. Furthermore, we find that pulsation phases evolve in time. We use our knowledge of the pulsations to clean the primary transit light curves and carry out an improved transit modeling. Surprisingly, taking into account the pulsations in the modeling has little influence on the derived orbital parameters. However, the uncertainties in the best-fit parameters decrease. Additionally, we find indications for a possible dependence between wavelength and transit depth, but only with marginal significance. A clear pulsation solution, in combination with an accurate orbital period, allows us to extend our studies and search for star-planet interactions (SPI). Although we find no conclusive evidence of SPI, we believe that the pulsation nature of the host star and the proximity between members make WASP-33 a promising system for further SPI studies.
description: 19 pages, 11 figures, paper accepted
Event-triggered feedback in noise-driven phase oscillators
Creators: name: Kromer, Justus A.
name: Lindner, Benjamin
name: Schimansky-Geier, Lutz
Publisher: name: arXiv
Year: 2014
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Using a stochastic nonlinear phase oscillator model, we study the effect of event-triggered feedback on the statistics of interevent intervals. Events are associated with the entering of a new cycle. The feedback is modeled by an instantaneous increase (positive feedback) or decrease (negative feedback) of the oscillators frequency, whenever an event occurs followed by an exponential decay on a slow timescale. In contrast to previous works, we also consider positive feedback that leads to various novel effects. For instance, besides the known excitable and oscillatory regime, that are separated by a saddle-node on invariant circle bifurcation, positive feedback can lead to bistable dynamics and a change of the system's excitability. The feedback has also a strong effect on noise-induced phenomena like coherence resonance or anti-coherence resonance. Both positive and negative feedback can lead to more regular output for particular noise strengths. Finally, we investigate serial correlation in the sequence of interevent intervals that occur due to the additional slow dynamics. We derive approximations for the serial correlation coefficient and show that positive feedback results in extended positive interval correlations whereas negative feedback yields short-ranging negative correlations. Investigating the interplay of feedback and the nonlinear phase dynamics close to the bifurcation, we find that correlations are most pronounced for an optimal feedback strengths.
description: 15 pages, 11 figures, submitted to Physical Review E
Electrical transport properties of an isolated CdS microrope composed of twisted nanowires
Creators: name: Yu, Gui-Feng
name: Yu, Miao
name: Pan, Wei
name: Han, Wen-Peng
name: Yan, Xu
name: Zhang, Jun-Cheng
name: Zhang, Hong-Di
name: Long, Yun-Ze
Publisher: name: Columbia University
Year: 2015
Subjects: Electric conductivity
Nanostructured materials

description: CdS is one of the important II-VI group semiconductors. In this paper, the electrical transport behavior of an individual CdS microrope composed of twisted nanowires is studied. It is found that the current–voltage (I-V) characteristics show two distinct power law regions from 360 down to 60 K. Space-charge-limited current (SCLC) theory is used to explain these temperature- and electric-field-dependent I-V curves. The I-V data can be well fitted by this theory above 100 K, and the corresponding carrier mobility, trap energy, and trap concentration are also obtained. However, the I-V data exhibit some features of the Coulomb blockade effect below 80 K.
Quantum fluctuations induce collective multiphonons in finite Fermi liquids
Creators: name: Marević, Petar
name: Regnier, David
name: Lacroix, Denis
Publisher: name: arXiv
Year: 2023
Subjects: subject: Nuclear Theory (nucl-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show that collective multiphonon states in atomic nuclei emerge at high excitation energies when quantum fluctuations in the collective space are included beyond the independent-particle approximation. The quadrupole response of a nucleus is studied using an extension of the nuclear time-dependent density-functional theory that mixes several many-body trajectories. While a single trajectory can account for the excitation of the first collective quantum, the second and the third quanta emerge due to the interference between trajectories. The collective spectrum, found as nearly harmonic, is in excellent agreement with the experimentally observed three quanta of the isoscalar giant quadrupole resonance in $^{40}$Ca. This study offers guidance for multiphonon searches in other self-bound systems and demonstrates the resistance to internal excitation of finite Fermi liquids.
description: 7 pages, 4 figures
Exciton Superfluidity in 2D Heterostructures from First Principles: The importance of material specific screening
Creators: name: Højlund, Rune
name: Grovn, Emil
name: Pakdel, Sahar
name: Thygesen, Kristian S.
name: Nilsson, Fredrik
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Recent theoretical and experimental studies suggest that van der Waals heterostructures with n- and p-doped bilayers of transition metal dichalcogenides are promising facilitators of exciton superfluidity. Exciton superfluidity in such bilayer systems is often modelled by solving a mean-field gap equation defined for only the conduction and valence band of the electron and hole material respectively. A key quantity entering the gap equation is the effective Coulomb potential acting as the bare interaction in the subspace of the model. Since the model only includes a few bands around the Fermi energy the effective model interaction is partially screened. Although the screening is a material dependent quantity it has in previous works been accounted for in an ad hoc manner, by assuming a static dielectric constant of 2 for a wide range of different materials. In this work we show that the effective model interaction can be derived from first principles using open source code frameworks. Using this novel ab initio downfolding procedure we show that the material dependent screening is essential to predict both magnitude and trends of exciton binding energies and superfluid properties. Furthermore, we suggest new material platforms of both transition metal oxides and dichalcogenides with superior properties compared to the standard devices with two transition metal dichalcogenide layers.
description: 16 pages, 8 figures
Additional file 2 of Effect of potent inhibitors of phenylalanine ammonia-lyase and PVP on in vitro morphogenesis of Fagopyrum tataricum
Creators: name: Pérez-Pérez, Reneé
name: Pinski, Artur
name: Zaranek, Magdalena
name: Beckmann, Manfred
name: Mur, Luis A. J.
name: Nowak, Katarzyna
name: Rojek-Jelonek, Magdalena
name: Kostecka-Gugała, Anna
name: Petryszak, Przemysław
name: Grzebelus, Ewa
name: Betekhtin, Alexander
Publisher: name: figshare
Year: 2025
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Plant Biology
subject: Virology

description: Supplementary Material 2
Electrokinetic and hydrodynamic properties of charged-particles systems: From small electrolyte ions to large colloids
Creators: name: Nägele, G.
name: Heinen, M.
name: Banchio, A. J.
name: Contreras-Aburto, C.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Dynamic processes in dispersions of charged spherical particles are of importance both in fundamental science, and in technical and bio-medical applications. There exists a large variety of charged-particles systems, ranging from nanometer-sized electrolyte ions to micron-sized charge-stabilized colloids. We review recent advances in theoretical methods for the calculation of linear transport coefficients in concentrated particulate systems, with the focus on hydrodynamic interactions and electrokinetic effects. Considered transport properties are the dispersion viscosity, self- and collective diffusion coefficients, sedimentation coefficients, and electrophoretic mobilities and conductivities of ionic particle species in an external electric field. Advances by our group are also discussed, including a novel mode-coupling-theory method for conduction-diffusion and viscoelastic properties of strong electrolyte solutions. Furthermore, results are presented for dispersions of solvent-permeable particles, and particles with non-zero hydrodynamic surface slip. The concentration-dependent swelling of ionic microgels is discussed, as well as a far-reaching dynamic scaling behavior relating colloidal long- to short-time dynamics.
КУЧСИЗ ЎСУВЧИ ПАЙВАНДТАГЛАРДА ЎСТИРИЛГАН ОЛХЎРИ НАВЛАРИНИНГ ТУП СОНИ ВА ҲОСИЛДОРЛИК ОРАСИДАГИ КОРРЕЛЯЦИОН БОҒЛИҚЛИК
Creators: name: Халмирзаев, Д.К.
Publisher: name: Zenodo
Year: 2023

description: Ўзбекистон Республикаси Президентининг 2019 йил 20 мартдаги ПҚ-4246-сон «Ўзбекистон Республикасида боғдорчилик ва иссикхона хўжалигини янада ривожлантириш чора-тадбирлари тўғрисида» ҳамда Ўзбекистон Республикаси Президентининг 2020 йил 28 январдаги ПК-4575-сон «Ўзбекистон Республикаси кишлок хўжалигини ривожлантиришнинг 2020-2030 йилларга мўлжаллаган стратегиясида белгиланган вазифаларни амалга ошириш чора-тадбирлари тўғрисида» ги карорларида янги мевали боғларни ташкил этиш ва эскиларини реконструкция қилиш вазифалари алоҳида белгилаб берилган.
title: Die Kunst ein Preuße zu werden; Im Jahre 1850 n. Chr
title: Ansprache an den beschränkten Unterthanenverstand der Völker groß-deutscher Nation und Natur
titleType: Subtitle
Creators: name: (:Unav)
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2018

description: In Fraktur
Infinite density for cold atoms in shallow optical lattices
Creators: name: Holz, Philip C.
name: Dechant, Andreas
name: Lutz, Eric
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Infinite densities can describe the long-time properties of systems when ergodicity is broken and the equilibrium Boltzmann-Gibbs distribution fails. We here perform semiclassical Monte Carlo simulations of cold atoms in dissipative optical lattices with realistic parameters. We show that the momentum infinite density, as well as its scale invariance, should be observable in shallow potentials. We further evaluate the momentum autocorrelation function in the stationary and aging regime.
description: 7 pages, 6 figures
Normalized General Relativity: Non-closed Universe and Zero Cosmological Constant
Creators: name: Davidson, Aharon
name: Rubin, Shimon
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss the cosmological constant problem, at the minisuperspace level, within the framework of the so-called normalized general relativity (NGR). We prove that the Universe cannot be closed, and reassure that the accompanying cosmological constant $Λ$ generically vanishes, at least classically. The theory does allow, however, for a special class of $Λ\not=0$ solutions which are associated with static closed Einstein universe and with Eddington-Lema\^ıtre universe.
description: 10 PRD pages, 4 figures
Assessment of the "Smart" Polymer Poly(sodium acrylate) for Anticancer Drug Targeting and Delivery
Creators: name: Whitty, Elizabeth
Publisher: name: The Australian National University
Year: 2023

description: The indiscriminate nature with which anticancer drugs attack all proliferating cells in the body leads to unwanted side effects. This project aimed to determine the potential of the "smart" polymer poly(acrylic acid) (PAA)/poly(sodium acrylate) (PNaA), in three different architectures (a linear and two branched versions), as an anticancer drug delivery system to help mitigate these side effects. PAA is considered a "smart" polymer because it has the unique ability to undergo a reversible ionisation change becoming PNaA in response to changes in environmental pH. This unique trait could be very beneficial for targeted cancer treatment as tumours have a more acidic microenvironment than surrounding non-cancerous tissues. The conjugation of the widely used anticancer drug cisplatin to PNaA (PNaA-Pt) was monitored by capillary electrophoresis in the critical conditions (CE-CC), and the amount of drug bound was determined by inductively coupled plasma mass spectrometry (ICP-MS). The branched versions of PNaA were found to have the largest binding capacity. Cytotoxicity studies of PNaA-Pt against cisplatin sensitive and resistant cells revealed PNaA-Pt can overcome the resistance phenotype, and produce at least a 765-fold improvement in potency compared to free cisplatin. No relationship between pH and potency was determined. The covalent attachment of a fluorescent probe, and the targeting ligand folic acid to PNaA were also monitored for the first time in this study by CE-CC. Confocal microscopy was used to visualise the uptake and cytoplasmic/nuclear localisation of PNaA. The knowledge obtained from this work demonstrates the potential of PAA/PNaA as an effective drug delivery system.
Quantum defects of $n$F$_J$ levels of Cs Rydberg atoms
Creators: name: Bai, Jingxu
name: Jiao, Yuechun
name: Song, Rong
name: Fan, Jiabei
name: Zhao, Jianming
name: Jia, Suotang
name: Raithe, Georg
Publisher: name: arXiv
Year: 2023
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We present precise measurements of the quantum defects of cesium $n$F$_J$ Rydberg levels. We employ high-precision microwave spectroscopy of $(n+2)\mathrm{D}_{5/2}\rightarrow n\mathrm{F}_{5/2,7/2}$ transitions for $n=45$ to 50 in a cold-atom setup. Cold cesium $(n+2)$D$_{5/2}$ atoms, prepared via two-photon laser excitation, are probed by scanning weak microwave fields interacting with the atoms across the $n\mathrm{F}_{5/2,7/2}$ resonances. Transition spectra are acquired using state-selective electric-field ionization and time-gated ion detection. Transition-frequency intervals are obtained by Lorentzian fits to the measured spectral lines, which have linewidths ranging between 70~kHz and 190~kHz, corresponding to about one to three times the Fourier limit. A comprehensive analysis of relevant line-shift uncertainties and line-broadening effects is conducted. We find quantum defect parameters $δ_{0}(\mathrm{F}_{5/2})=0.03341537(70)$ and $δ_{2}(\mathrm{F}_{5/2})=-0.2014(16)$, as well as $δ_{0}(\mathrm{F}_{7/2})=0.0335646(13)$ and $δ_{2}(\mathrm{F}_{7/2})=-0.2052(29)$, for $J=5/2$ and $J=7/2$, respectively. Fine structure parameters $A_{FS}$ and $B_{FS}$ for Cs $n{\rm{F}}_J$ are also obtained. Results are discussed in context with previous works, and the significance of the results is discussed.
Message in a bottle: energy extraction from bouncing geometries
Creators: name: Cardoso, Vitor
name: Costa, João L.
name: Natário, José
name: Zhong, Zhen
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Quantum gravity phenomenology suggests the interesting possibility that black holes are not eternal. Collapse could be halted by some unknown mechanism, or Hawking radiation might leave behind a regular spacetime. Here we investigate a simple bouncing geometry, with (outer and inner) apparent horizons but no event horizon. We show that the inner horizon blueshifts radiation, which can lead to a gigantic amplification of energy observable from far away regions. Thus, if such phenomena exists in our universe, they can power high-energy bursts at late stages in their lives, when the horizons disappear and spacetime bounces back to a flat geometry.
description: 6 pages, 3 figures. v2: references added
QCD angular momentum in $N \rightarrow Δ$ transitions
Creators: name: Kim, June-Young
name: Won, Ho-Yeon
name: Goity, Jose L.
name: Weiss, Christian
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: $N \rightarrow Δ$ transitions offer new possibilities for exploring the isovector component of the QCD quark angular momentum (AM) operator causing the $J^{u - d}$ flavor asymmetry in the nucleon. We extend the concept of QCD AM to transitions between baryon states, using light-front densities of the energy-momentum tensor in transversely localized states. We calculate the $N \rightarrow Δ$ transition AM in the $1/N_c$ expansion, connect it with the $J^{u - d}$ flavor asymmetry in the nucleon, and estimate the values using lattice QCD results. In the same setup we connect the transition AM to the transition GPDs sampled in hard exclusive electroproduction processes with $N \rightarrow Δ$ transitions, enabling experimental study of the transition AM.
description: 7 pages, 1 figure
Is it possible to detect planets around young active G and K dwarfs?
Creators: name: Jeffers, S. V.
name: Barnes, J. R.
name: Jones, H. R. A.
name: Reiners, A.
name: Pinfield, D. J.
name: Marsden, S. C.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Theoretical predictions suggest that the distribution of planets in very young stars could be very different to that typically observed in Gyr old systems that are the current focus of radial velocity surveys. However, the detection of planets around young stars is hampered by the increased stellar activity associated with young stars, the signatures of which can bias the detection of planets. In this paper we place realistic limitations on the possibilities for detecting planets around young active G and K dwarfs. The models of stellar activity based on tomographic imaging of the G dwarf HD 141943 and the K1 dwarf AB Dor and also include contributions from plage and many small random starspots. Our results show that the increased stellar activity levels present on young Solar-type stars strongly impacts the detection of Earth-mass and Jupiter mass planets and that the degree of activity jitter is directly correlated with stellar \vsinis. We also show that for G and K dwarfs, the distribution of activity in individual stars is more important than the differences in induced radial velocities as a function of spectral type. We conclude that Jupiter mass planets can be detected close-in around fast-rotating young active stars, Neptune-mass planets around moderate rotators and that Super-Earths are only detectable around very slowly rotating stars. The effects of an increase in stellar activity jitter by observing younger stars can be compensated for by extending the observational base-line to at least 100 epochs.
description: accepted by MNRAS
Additional file 1 of Kinetic measurements of membrane target level and on-cell binding of biotherapeutic antibodies using flow-cytometry
Creators: name: Doty, Daniel T.
name: Roy, Mahua
name: Kukutla, Phanidhar
name: Lucarelli, Nicholas
name: Struss, Peter E.
name: King, Lindsay E.
name: Chabot, Jeffrey R.
name: Narula, Jatin
name: Neubert, Hendrik
name: Goihberg, Polina
Publisher: name: figshare
Year: 2025
Subjects: subject: Biophysics
subject: Biochemistry
subject: Pharmacology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Plant Biology
subject: FOS: Biological sciences

description: Supplementary Material 1
Evaluations of reproductive health programs in humanitarian settings: a systematic review
Creators: name: Casey, Sara E.
Publisher: name: Columbia University
Year: 2015
Subjects: Public health--Evaluation
Humanitarian assistance
Reproductive health services

description: Provision of reproductive health (RH) services is a minimum standard of health care in humanitarian settings; however access to these services is often limited. This systematic review, one component of a global evaluation of RH in humanitarian settings, sought to explore the evidence regarding RH services provided in humanitarian settings and to determine if programs are being evaluated. In addition, the review explored which RH services receive more attention based on program evaluations and descriptive data. Peer-reviewed papers published between 2004 and 2013 were identified via the Ovid MEDLINE database, followed by a PubMed search. Papers on quantitative evaluations of RH programs, including experimental and non-experimental designs that reported outcome data, implemented in conflict and natural disaster settings, were included. Of 5,669 papers identified in the initial search, 36 papers describing 30 programs met inclusion criteria. Twenty-five papers described programs in sub-Saharan Africa, six in Asia, two in Haiti and three reported data from multiple countries. Some RH technical areas were better represented than others: seven papers reported on maternal and newborn health (including two that also covered family planning), six on family planning, three on sexual violence, 20 on HIV and other sexually transmitted infections and two on general RH topics. In comparison to the program evaluation papers identified, three times as many papers were found that reported RH descriptive or prevalence data in humanitarian settings. While data demonstrating the magnitude of the problem are crucial and were previously lacking, the need for RH services and for evaluations to measure their effectiveness is clear. Program evaluation and implementation science should be incorporated into more programs to determine the best ways to serve the RH needs of people affected by conflict or natural disaster. Standard program design should include rigorous program evaluation, and the results must be shared. The papers demonstrated both that RH programs can be implemented in these challenging settings, and that women and men will use RH services when they are of reasonable quality.
The Panchromatic Hubble Andromeda Treasury XX: The Disk of M31 is Thick
Creators: name: Dalcanton, Julianne J.
name: Bell, Eric F.
name: Choi, Yumi
name: Dolphin, Andrew E.
name: Fouesneau, Morgan
name: Girardi, Léo
name: Hogg, David W.
name: Seth, Anil C.
name: Williams, Benjamin F.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a new approach to measuring the thickness of a partially face-on stellar disk, using dust geometry. In a moderately-inclined disk galaxy, the fraction of reddened stars is expected to be 50% everywhere, assuming that dust lies in a thin midplane. In a thickened disk, however, a wide range of radii project onto the line of sight. Assuming stellar density declines with radius, this geometrical projection leads to differences in the numbers of stars on the near and far sides of the thin dust layer. The fraction of reddened stars will thus differ from the 50% prediction, with a deviation that becomes larger for puffier disks. We map the fraction of reddened red giant branch (RGB) stars across M31, which shows prominent dust lanes on only one side of the major axis. The fraction of reddened stars varies systematically from 20% to 80%, which requires that these stars have an exponential scale height h_z that is 0.14+/-0.015 times the exponential scale length (h_r~5.5kpc). M31's RGB stars must therefore have h_z=770+/-80pc, which is far thicker than the Milky Way's thin disk, but comparable to its thick disk. The lack of a significant thin disk in M31 is unexpected, but consistent with its interaction history and high disk velocity dispersion. We suggest that asymmetric reddening be used as a generic criteria for identifying ``thick disk'' dominated systems, and discuss prospects for future 3-dimensional tomographic mapping of the gas and stars in M31.
description: 22 pages. Accepted to the Astrophysical Journal
title: Проектное управление в университете
title: Project Management at the University
Creators: name: Косенок, Сергей Михайлович
Publisher: name: Издательский центр СурГУ
Year: 2022

description: Рассмотрены процессы внедрения проектных методов управления в Сургутском государственном университете, проведен их содержательный и сравнительный анализ. Представлены краткие исторические данные и данные, отражающие результаты внедрения проектных методов в управление университетом. Выявлены тенденции развития внедрения проектных методов и направления для дальнейшего его улучшения.
description: The article considers the processes of implementing the project management methods in Surgut State University and conducts their informative and comparative analysis. Brief historical evidence and results of implementing project management methods at a university are presented. Development trends for implementation of project management methods and directions for its further improvement are identified.
Zigzag transitions and nonequilibrium pattern formation in colloidal chains
Creators: name: Straube, Arthur V.
name: Dullens, Roel P. A.
name: Schimansky-Geier, Lutz
name: Louis, Ard A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Paramagnetic colloidal particles that are optically trapped in a linear array can form a zigzag pattern when an external magnetic field induces repulsive interparticle interactions. When the traps are abruptly turned off, the particles form a nonequilibrium expanding pattern with a zigzag symmetry, even when the strength of the magnetic interaction is weaker than that required to break the linear symmetry of the equilibrium state. We show that the transition to the equilibrium zigzag state is always potentially possible for purely harmonic traps. For anharmonic traps that have a finite height, the equilibrium zigzag state becomes unstable above a critical anharmonicity. A normal mode analysis of the equilibrium line configuration demonstrates that increasing the magnetic field leads to a hardening and softening of the spring constants in the longitudinal and transverse directions, respectively. The mode that first becomes unstable is the mode with the zigzag symmetry, which explains the symmetry of nonequilibrium patterns. Our analytically tractable models help to give further insight into the way that the interplay of such factors as the length of the chain, hydrodynamic interactions, thermal fluctuations affect the formation and evolution of the experimentally observed nonequilibrium patterns.
description: 16 pages, 8 figures; to appear in the Journal of Chemical Physics
Additional file 3 of Kinetic measurements of membrane target level and on-cell binding of biotherapeutic antibodies using flow-cytometry
Creators: name: Doty, Daniel T.
name: Roy, Mahua
name: Kukutla, Phanidhar
name: Lucarelli, Nicholas
name: Struss, Peter E.
name: King, Lindsay E.
name: Chabot, Jeffrey R.
name: Narula, Jatin
name: Neubert, Hendrik
name: Goihberg, Polina
Publisher: name: figshare
Year: 2025
Subjects: subject: Biophysics
subject: Biochemistry
subject: Pharmacology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Plant Biology
subject: FOS: Biological sciences

description: Supplementary Material 3