cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Droplets move over viscoelastic substrates by surfing a ridge
Creators: name: Karpitschka, S.
name: Das, S.
name: van Gorcum, M.
name: Perrin, H.
name: Andreotti, B.
name: Snoeijer, J. H.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Liquid drops on soft solids generate strong deformations below the contact line, resulting from a balance of capillary and elastic forces. The movement of these drops may cause strong, potentially singular dissipation in the soft solid. Here we show that a drop on a soft substrate moves by surfing a ridge: the initially flat solid surface is deformed into a sharp ridge whose orientation angle depends on the contact line velocity. We measure this angle for water on a silicone gel and develop a theory based on the substrate rheology. We quantitatively recover the dynamic contact angle and provide a mechanism for stick-slip motion when a drop is forced strongly: the contact line depins and slides down the wetting ridge, forming a new one after a transient. We anticipate that our theory will have implications in problems such as self-organization of cell tissues or the design of capillarity-based microrheometers.
description: 9 pages, 5 figures
Inhibition of non-homologous end joining mitigates paclitaxel resistance resulting from mitotic slippage in non-small cell lung cancer
Creators: name: Tsuji, Kosuke
name: Kikuchi, Eiki
name: Takashima, Yuta
name: Shoji, Tetsuaki
name: Takahashi, Hirofumi
name: Ito, Shotaro
name: Morinaga, Daisuke
name: Kashima, Masahiro
name: Maeda, Makie
name: Kitai, Hidenori
name: Kikuchi, Junko
name: Sakakibara-Konishi, Jun
name: Konno, Satoshi
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: Physical Sciences not elsewhere classified
subject: Cell Biology
subject: Molecular Biology
subject: Pharmacology
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Hematology
subject: Plant Biology
subject: FOS: Biological sciences

description: Mitotic slippage, which enables cancer cells to bypass cell death by transitioning from mitosis to the G1 phase without undergoing normal cytokinesis, is one likely mechanism of paclitaxel (PTX) resistance. DNA double-strand breaks (DSBs) in the G1 phase are mainly repaired through non-homologous end joining (NHEJ). Therefore, inhibiting NHEJ could augment the PTX-induced cytotoxicity by impeding the repair of PTX-induced DSBs during the G1 phase following mitotic slippage. We aimed to evaluate the effects of NHEJ inhibition on mitotic slippage after PTX treatment in non-small cell lung cancer (NSCLC). H1299, A549, H1975, and H520 NSCLC cell lines were employed. In addition, A-196 and JQ1 were used as NHEJ inhibitors. H1299 cells were PTX-resistant and exhibited an increased frequency of mitotic slippage upon PTX treatment. NHEJ inhibitors significantly augmented the PTX-induced cytotoxicity, DSBs, and apoptosis in H1299 cells. The newly generated PTX-resistant cells were even more prone to mitotic slippage following PTX treatment and susceptible to the combined therapy. Docetaxel further demonstrated synergistic effects with the NHEJ inhibitor in PTX-resistant cells. NHEJ inhibition may overcome intrinsic or acquired PTX resistance resulting from mitotic slippage by synergistically increasing the cytotoxic effects of antimitotic drugs in NSCLC.
Coupled catastrophes: sudden shifts cascade and hop among interdependent systems
Creators: name: Brummitt, Charles D.
name: Barnett, George
name: D'Souza, Raissa M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Classical Analysis and ODEs (math.CA)
subject: Dynamical Systems (math.DS)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: An important challenge in several disciplines is to understand how sudden changes can propagate among coupled systems. Examples include the synchronization of business cycles, population collapse in patchy ecosystems, markets shifting to a new technology platform, collapses in prices and in confidence in financial markets, and protests erupting in multiple countries. A number of mathematical models of these phenomena have multiple equilibria separated by saddle-node bifurcations. We study this behavior in its normal form as fast--slow ordinary differential equations. In our model, a system consists of multiple subsystems, such as countries in the global economy or patches of an ecosystem. Each subsystem is described by a scalar quantity, such as economic output or population, that undergoes sudden changes via saddle-node bifurcations. The subsystems are coupled via their scalar quantity (e.g., trade couples economic output; diffusion couples populations); that coupling moves the locations of their bifurcations. The model demonstrates two ways in which sudden changes can propagate: they can cascade (one causing the next), or they can hop over subsystems. The latter is absent from classic models of cascades. For an application, we study the Arab Spring protests. After connecting the model to sociological theories that have bistability, we use socioeconomic data to estimate relative proximities to tipping points and Facebook data to estimate couplings among countries. We find that although protests tend to spread locally, they also seem to "hop" over countries, like in the stylized model; this result highlights a new class of temporal motifs in longitudinal network datasets.
description: 20 pages, 4 figures, plus a 6-page supplementary material that contains 5 figures. Accepted at Journal of the Royal Society Interface
Historical perspective of peptidomics
Creators: name: Schrader, Michael
name: Schulz-Knappe, Peter
name: Fricker, Lloyd D.
Publisher: name: Amsterdam [u.a.] : Elsevier
Year: 2014
Subjects: subject: Peptidomics
subject: Peptidome
subject: Biomarker discovery
subject: Peptide research
subject: Peptide hormones
subject: Peptidom
subject: Peptide
subject: Peptidhormone
subject: Neuropeptide
subject: Biomarker
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: Peptides have been studied for over 100 years, but for most of this time the focus was on a specific peptide or peptides, and not on the general peptidome of a biological sample. In the 1990s, mass spectrometry techniques were developed for the analysis of proteins, usually after digestion into peptides. The field of peptidomics started soon after proteomics and has grown to over 600 publications that use the word “peptidomic” or “peptidomics”. Although peptidomics is related to proteomics, there are fundamental differences. In this review, we discuss these differences along with the history of the field of peptidomics.
Flow Allocation for Maximum Throughput and Bounded Delay on Multiple Disjoint Paths for Random Access Wireless Multihop Networks
Creators: name: Ploumidis, Manolis
name: Pappas, Nikolaos
name: Traganitis, Apostolos
Publisher: name: arXiv
Year: 2014
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: In this paper, we consider random access, wireless, multi-hop networks, with multi-packet reception capabilities, where multiple flows are forwarded to the gateways through node disjoint paths. We explore the issue of allocating flow on multiple paths, exhibiting both intra- and inter-path interference, in order to maximize average aggregate flow throughput (AAT) and also provide bounded packet delay. A distributed flow allocation scheme is proposed where allocation of flow on paths is formulated as an optimization problem. Through an illustrative topology it is shown that the corresponding problem is non-convex. Furthermore, a simple, but accurate model is employed for the average aggregate throughput achieved by all flows, that captures both intra- and inter-path interference through the SINR model. The proposed scheme is evaluated through Ns2 simulations of several random wireless scenarios. Simulation results reveal that, the model employed, accurately captures the AAT observed in the simulated scenarios, even when the assumption of saturated queues is removed. Simulation results also show that the proposed scheme achieves significantly higher AAT, for the vast majority of the wireless scenarios explored, than the following flow allocation schemes: one that assigns flows on paths on a round-robin fashion, one that optimally utilizes the best path only, and another one that assigns the maximum possible flow on each path. Finally, a variant of the proposed scheme is explored, where interference for each link is approximated by considering its dominant interfering nodes only.
description: IEEE Transactions on Vehicular Technology
A marginal sampler for $σ$-Stable Poisson-Kingman mixture models
Creators: name: Lomelí, María
name: Favaro, Stefano
name: Teh, Yee Whye
Publisher: name: arXiv
Year: 2014
Subjects: subject: Computation (stat.CO)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: We investigate the class of $σ$-stable Poisson-Kingman random probability measures (RPMs) in the context of Bayesian nonparametric mixture modeling. This is a large class of discrete RPMs which encompasses most of the the popular discrete RPMs used in Bayesian nonparametrics, such as the Dirichlet process, Pitman-Yor process, the normalized inverse Gaussian process and the normalized generalized Gamma process. We show how certain sampling properties and marginal characterizations of $σ$-stable Poisson-Kingman RPMs can be usefully exploited for devising a Markov chain Monte Carlo (MCMC) algorithm for making inference in Bayesian nonparametric mixture modeling. Specifically, we introduce a novel and efficient MCMC sampling scheme in an augmented space that has a fixed number of auxiliary variables per iteration. We apply our sampling scheme for a density estimation and clustering tasks with unidimensional and multidimensional datasets, and we compare it against competing sampling schemes.
description: New algorithmic performance comparisons were added
Tokuyama-type formulas for type B
Creators: name: Friedberg, Solomon
name: Zhang, Lei
Publisher: name: arXiv
Year: 2014
Subjects: subject: Combinatorics (math.CO)
subject: Number Theory (math.NT)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: Primary 05E10, Secondary 17B10, 11F70, 22E50

description: We obtain explicit formulas for the product of a deformed Weyl denominator with the character of an irreducible representation of the spin group $\rm{Spin}_{2r+1}({\mathbb C})$, which is an analogue of the formulas of Tokuyama for Schur polynomials and Hamel-King for characters of symplectic groups. To give these, we start with a symplectic group and obtain such characters using the Casselman-Shalika formula. We then analyze this using objects which are naturally attached to the metaplectic double cover of an odd orthogonal group, which also has dual group $\rm{Spin}_{2r+1}({\mathbb C})$.
description: 34 pages. To appear in Israel J. of Math
Adenocarcinoma - success so far and the way ahead
Creators: name: Fatima, Rabab
name: Sharma, Mousmee
name: Prasher, Parteek
name: Gupta, Gaurav
name: Singh, Sachin Kumar
name: Gulati, Monica
name: Dua, Kamal
Publisher: name: IfADo - Leibniz Research Centre for Working Environment and Human Factors, Dortmund
Year: 2023
Subjects: adenocarcinoma

description: EXCLI Journal; 22:Doc329; ISSN 1611-2156
SMS final conference report
Creators: name: Prokop, Gundula
Publisher: name: Zenodo
Year: 2022

description: Objectives and scope
 The SMS final conference was held in Brussels on September 27th
 2022 with the objective to inform on the EU soil research mission
 and how this mission is supported by results of the SMS project.
 With this report we would like to share our knowledge gain with
 regard to organising a multi‐stakeholder conference in times of
 COVID. Target audience of this report
 The key target group of this report are conference organisers in
 particular within the Horizon Europe Research programme. In this
 report we share our experience with regard to
 - COVID secure planning,
 - engagement of participants and use of innovative communication tools (conference design),
 - dissemination and communication before and after the conference, and
 - resources invested in conference planning.
Human Resources in the Rural Mississippi Delta: With Emphasis on the Poor
Creators: name: Crecink, John C.
name: Steptoe, Roosevelt
name: Crecink, John C.
name: Steptoe, Roosevelt
Publisher: name: Unknown
Year: 1970
Subjects: Community/Rural/Urban Development
Consumer/Household Economics
Labor and Human Capital

description: Excerpts from the report Introduction: The Mississippi Delta extends from the Bootheel area of Missouri to the Red River in Louisiana. The region in this study consists of 43 counties fully in the Delta in four States (Arkansas, Louisiana, Mississippi, and Missouri) and has often been characterized as containing the largest number of poor people in the United States. The continuing mass outmigration from the Delta to other regions of the United States during the last 30 years makes the poverty problem of the Delta a part of the national poverty that cannot be solved locally or regionally. This study focuses on the identification and estimation of the magnitude of the disadvantaged group in the rural area of the Delta and what might improve their condition.
Embedded minimal surfaces in $\mathbb{R}^n$
Creators: name: Alarcon, Antonio
name: Forstneric, Franc
name: Lopez, Francisco J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Differential Geometry (math.DG)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 53A10, 32B15, 32E30, 32H02

description: In this paper, we prove that every confomal minimal immersion of an open Riemann surface into $\mathbb{R}^n$ for $n\ge 5$ can be approximated uniformly on compacts by conformal minimal embeddings. Furthermore, we show that every open Riemann surface carries a proper conformal minimal embedding into $\mathbb{R}^5$. One of our main tools is a Mergelyan approximation theorem for conformal minimal immersions to $\mathbb{R}^n$ for any $n\ge 3$ which is also proved in the paper.
description: Math. Z., in press. The official version is available on Springerlink at http://link.springer.com/article/10.1007%2Fs00209-015-1586-5
T-duality diagram for a weakly curved background
Creators: name: Davidović, Ljubica
name: Nikolić, Bojan
name: Sazdović, Branislav
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In one of our previous papers we generalized the Buscher T-dualization procedure. Here we will investigate the application of this procedure to the theory of a bosonic string moving in the weakly curved background. We obtain the complete T-dualization diagram, connecting the theories which are the result of the T-dualizations over all possible choices of the coordinates. We distinguish three forms of the T-dual theories: the initial theory, the theory obtained T-dualizing some of the coordinates of the initial theory and the theory obtained T-dualizing all of the initial coordinates. While the initial theory is geometric, all the other theories are non geometric and additionally nonlocal. We find the T-dual coordinate transformation laws connecting these theories and show that the set of all T-dualizations forms an Abelian group.
Minimal hulls of compact sets in $\mathbb R^3$
Creators: name: Drnovsek, Barbara Drinovec
name: Forstneric, Franc
Publisher: name: arXiv
Year: 2014
Subjects: subject: Differential Geometry (math.DG)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: Primary: 53A10, 32U05, Secondary: 32C30, 32E20, 49Q05, 49Q15

description: The main result of this paper is a characterization of the minimal surface hull of a compact set $K$ in $\mathbb R^3$ by sequences of conformal minimal discs whose boundaries converge to $K$ in the measure theoretic sense, and also by $2$-dimensional minimal currents which are limits of Green currents supported by conformal minimal discs. Analogous results are obtained for the null hull of a compact subset of $\mathbb C^3$. We also prove a null hull analogue of the Alexander-Stolzenberg-Wermer theorem on polynomial hulls of compact sets of finite linear measure, and a polynomial hull version of classical Bochner's tube theorem.
description: Trans. Amer. Math. Soc., in press. The official version is available at http://dx.doi.org/10.1090/tran/6777
On the alternative formulation of the three-dimensional noncommutative superspace
Creators: name: Gama, F. S.
name: Nascimento, J. R.
name: Petrov, A. Yu.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we propose a new version for the noncommutative superspace in 3D. This version is shown to be convenient for performing quantum calculations. In the paper, we use the theory of the chiral superfield as a prototype for possible generalizations, calculating the one-loop two-point function of a chiral supefield and the one-loop low-energy effective action in this theory.
description: 14 pages, accepted to International Journal of Modern Physics A
Diversification and Profitability Among Large Food Processing Firms
Creators: name: Arnould, Richard J.
name: Arnould, Richard J.
Publisher: name: Unknown
Year: 1970
Subjects: subject: Agricultural and Food Policy
subject: Industrial Organization
subject: Marketing
subject: FOS: Economics and business
subject: Research Methods/ Statistical Methods

description: Excerpts from the report Preface: Farmers and numerous legislative and economic groups concerned with agricultural policy have become increasingly aware of the conglomerate acquisitions and internal growth affecting food industries. In recent years, firms in food processing have, through internal and external growth, enlarged their product lines to include more food products and numerous nonfood products from other manufacturing industries. Farmers and consumers have wondered what such changes mean for the firms with which they conduct business and what effect these changes will have on their market relationships with these firms. The specific objectives of this study are to determine: (1) whether any observable relationships existed between the degree of diversification of food processing firms and their performance variables, such as profit rates and margins; (2) the relationship of other structural variables, such as concentration and size of firm, to profit variables; (3) effects of the degree of diversification on the stability of profit rates of food processing firms over time; and (4) the measurement problems associated with product diversification.
Supplementary files for the paper "Raising the analytical capacity of political science with root cause analysis."
Creators: name: Harich, Jack
name: Koloffon Rosas, Montserrat
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 440899
subject: Political science not elsewhere classified

description: The paper used a simulation model for analysis and a spreadsheet for study data. Here are what the files contain:DuelingLoops_Dem_English.html - A long table describing the details of the system dynamics model.DuelingLoops_Dem.mdl - The system dynamics model. We used Vensim.ModelDescription.docx - Describes the model and simulation runs.StudyResultsData.xlsx - Contains the raw data and statistical analysis for the Truth Literacy Training study.
title: From field to food – Will pesticide contaminated pollen diet lead to a contamination of larval food?
Creators: name: Böhme, Franziska
name: Bischoff, Gabriela
name: Wallner, Klaus
Publisher: name: Julius Kühn-Institut
Year: 2018

description: Julius-Kühn-Archiv, 462 (Hazards of pesticides to bees : 13th International Symposium of the ICP-PR Bee Protection Group ; 18. - 20. October 2017, València (Spain) - Proceedings -)
MAKTABGACHA TA'LIM TASHKILOTLARIDA PSIXOLOGIK XIZMAT MEXANIZMLARINI TAKOMILLASHTIRISH
Creators: name: Erkinova, Sevara
Publisher: name: Zenodo
Year: 2024

description: O‘zbekiston Respublikasi Prezidentining 2016 yil 29 dekabrda «2017-2021 yillarda maktabgacha ta’lim tizimini yanada takomillashtirish chora-tadbirlari to‘g‘risida»gi PQ-2707- sonli qarori qabul qilindi. Unga ko‘ra, maktabgacha ta’lim tashkilotlarini tubdan isloh qilish, ularni zamonaviy texnologiyalar bilan jihozlash, malakali pedagogolar bilan ta’minlash, innovatsiyalarni joriy etish vazifalari belgilab berildi[1]. Maktabgacha ta’lim tashkilotlarida psixologik xizmatni yo‘lga qo‘yish va bu sohani yanada rivojlantirish uchun ko‘pgina imkoniyatlar yaratildi. Ta’lim tizimidagi psixologik xizmatni rivojlantirishdan ko‘zlangan asosiy maqsad bolaning aqliy va ruhiy salomatligini ta’minlashdir. Bolalar bog‘chasidagi psixolog – bu aqliy rivojlanishning umumiy qonunlarini va ushbu rivojlanishning yosh xususiyatlarini hamda uning individual
A Pragmatic Interpretation of Quantum Logic
Creators: name: Garola, Claudio
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: 81P05

description: Scholars have wondered for a long time whether the language of quantum mechanics introduces a quantum notion of truth which is formalized by quantum logic (QL) and is incompatible with the classical (Tarskian) notion. We show that QL can be interpreted as a pragmatic language of assertive formulas which formalize statements about physical systems that are empirically justified or unjustified in the framework of quantum mechanics. According to this interpretation, QL formalizes properties of the metalinguistic notion of empirical justification within quantum mechanics rather than properties of a quantum notion of truth. This conclusion agrees with a general integrationist perspective that interprets nonstandard logics as theories of metalinguistic notions different from truth, thus avoiding incompatibility with classical notions and preserving the globality of logic. By the way, some elucidations of the standard notion of quantum truth are also obtained. Key words: pragmatics, quantum logic, quantum mechanics, justifiability, global pluralism.
description: Third version: 20 pages. Sects. 1, 2, and 4 rewritten and improved. Explanations added
Neutron-Antineutron Oscillations: Theoretical Status and Experimental Prospects
Creators: name: Phillips, D. G.
name: Snow, W. M.
name: Babu, K.
name: Banerjee, S.
name: Baxter, D. V.
name: Berezhiani, Z.
name: Bergevin, M.
name: Bhattacharya, S.
name: Brooijmans, G.
name: Castellanos, L.
name: Chen, M-C.
name: Coppola, C. E.
name: Cowsik, R.
name: Crabtree, J. A.
name: Das, P.
name: Dees, E. B.
name: Dolgov, A.
name: Ferguson, P. D.
name: Frost, M.
name: Gabriel, T.
name: Gal, A.
name: Gallmeier, F.
name: Ganezer, K.
name: Golubeva, E.
name: Greene, G.
name: Hartfiel, B.
name: Hawari, A.
name: Heilbronn, L.
name: Johnson, C.
name: Kamyshkov, Y.
name: Kerbikov, B.
name: Kitaguchi, M.
name: Kopeliovich, B. Z.
name: Kopeliovich, V. B.
name: Kuzmin, V. A.
name: Liu, C-Y.
name: McGaughey, P.
name: Mocko, M.
name: Mohapatra, R.
name: Mokhov, N.
name: Muhrer, G.
name: Mumm, H. P.
name: Okun, L.
name: Pattie, R. W.
name: Quigg, C.
name: Ramberg, E.
name: Ray, A.
name: Roy, A.
name: Ruggles, A.
name: Sarkar, U.
name: Saunders, A.
name: Serebrov, A. P.
name: Shimizu, H. M.
name: Shrock, R.
name: Sikdar, A. K.
name: Sjue, S.
name: Striganov, S.
name: Townsend, L. W.
name: Tschirhart, R.
name: Vainshtein, A.
name: Van Kooten, R.
name: Wang, Z.
name: Young, A. R.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: This paper summarizes the relevant theoretical developments, outlines some ideas to improve experimental searches for free neutron-antineutron oscillations, and suggests avenues for future improvement in the experimental sensitivity.
description: Submitted to Physics Reports
Optical polarimetry of cataclysmic variables
Creators: name: Vilega Rodrigues, Claudia
Publisher: name: Zenodo
Year: 2022
Subjects: (Stars:) novae, cataclysmic variables - (Stars:) white dwarfs - Polarization - Radiative transfer

description: It is briefly revised the literature relative to optical polarimetric measurements of cataclysmic variables (CVs). It is also discussed how polarization can be used to estimate important properties of those objects as the white-dwarf magnetic field, mass accretion rate, and white-dwarf mass. Some recents results of our group related to observations, modelling and instrumental development of optical polarimetry of CVs are presented.
A chromatinized origin reduces the mobility of ORC and MCM through interactions and spatial constraint.
Creators: name: Sánchez, Humberto
name: Liu, Zhaowei
name: van Veen, Edo
name: van Laar, Theo
name: Diffley, John FX
name: Dekker, Nynke H
Publisher: name: The Francis Crick Institute
Year: 2023
Subjects: classificationCode: Genetics & Genomics
subject: Genetics & Genomics
classificationCode: Genome Integrity & Repair
subject: Genome Integrity & Repair
classificationCode: Model organisms
subject: Model organisms
classificationCode: Biochemistry & Proteomics
subject: Biochemistry & Proteomics
classificationCode: Structural Biology & Biophysics
subject: Structural Biology & Biophysics
classificationCode: Cell Biology
subject: Cell Biology
classificationCode: Cell Cycle & Chromosomes
subject: Cell Cycle & Chromosomes

description: Chromatin replication involves the assembly and activity of the replisome within the nucleosomal landscape. At the core of the replisome is the Mcm2-7 complex (MCM), which is loaded onto DNA after binding to the Origin Recognition Complex (ORC). In yeast, ORC is a dynamic protein that diffuses rapidly along DNA, unless halted by origin recognition sequences. However, less is known about the dynamics of ORC proteins in the presence of nucleosomes and attendant consequences for MCM loading. To address this, we harnessed an in vitro single-molecule approach to interrogate a chromatinized origin of replication. We find that ORC binds the origin of replication with similar efficiency independently of whether the origin is chromatinized, despite ORC mobility being reduced by the presence of nucleosomes. Recruitment of MCM also proceeds efficiently on a chromatinized origin, but subsequent movement of MCM away from the origin is severely constrained. These findings suggest that chromatinized origins in yeast are essential for the local retention of MCM, which may facilitate subsequent assembly of the replisome.
Liouville mode in Gauge/Gravity Duality
Creators: name: Moskalets, Tatiana
name: Nurmagambetov, Alexei
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We establish solutions corresponding to AdS4 static charged black holes with inhomogeneous two-dimensional horizon surfaces of constant curvature. Depending on the choice of the 2D constant curvature space, the metric potential of the internal geometry of the horizon satisfies the elliptic wave/elliptic Liouville equations. We calculate the charge diffusion and transport coefficients in the hydrodynamic limit of gauge/gravity duality and observe the exponential suppression in the diffusion coefficient and in the shear viscosity-per-entropy density ratio in the presence of an inhomogeneity on black hole horizons with planar, spherical, and hyperbolic geometry. We discuss the subtleties of the approach developed for a planar black hole with inhomogeneity distribution on the horizon surface in more detail and find, among others, a trial distribution function, which generates values of the shear viscosity-per-entropy density ratio falling within the experimentally relevant range. The solutions obtained are also extended to higher-dimensional AdS space. We observe two different DC conductivities in 4D and higher-dimensional effective strongly coupled dual media and formulate conditions under which the appropriate ratio of different conductivities is qualitatively the same as that observed in an anisotropic strongly coupled fluid. We briefly discuss ways of how the Liouville field could appear in condensed matter physics and outline prospects of further employing the gauge/gravity duality in CMP problems.
description: 1+22 pages, 1 Fig; v.2: eqs. (2.2), (3.16), (3.18) and (5.2) corrected, Refs. added; v.3: 1+28 pages, expanded version, Refs. added; v.4: published version
Der Publikationsfonds für Open-Access-Monografien des Landes Brandenburg. Verlagserfahrungen und Kostentransparenz
Creators: name: Zeltner, Anja
name: Eppelin, Anita
Publisher: name: Zenodo
Year: 2023
Subjects: Open Access
Open Access Brandenburg
Open Access Publizieren
Wissenschaftsverlag
Publikationsfonds
Monografien
Open Science
Openness

description: In diesen Präsentationsfolien werden Informationen zum Publikationsfonds für Open-Access-Monografien des Landes Brandenburg aufgeschlüsselt dargestellt. Die Präsentationsfolien fanden Anwendung im Rahmen einer am 22.2.23 durchgeführten Schulung der Vernetzungs- und Kompetenzstelle Open Access Brandenburg (VuK). Besonders beleuchtet werden die Anträge der bewilligten Publikationen und die Open-Access-Kostenaufschlüsselungen der Verlage, die im Rahmen des Antragsprozesses eingereicht werden müssen. Der Publikationsfonds für Open-Access-Monografien sowie die Arbeit der VuK wird durch das Ministerium für Wissenschaft, Forschung und Kultur des Landes Brandenburg finanziert. Weitere Informationen finden sich auf der Webseite der VuK: https://open-access-brandenburg.de/.
Hysteresis, reentrance, and glassy dynamics in systems of self-propelled rods
Creators: name: Kuan, Hui-Shun
name: Blackwell, Robert
name: Hough, Loren E.
name: Glaser, Matthew A.
name: Betterton, M. D.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Non-equilibrium active matter made up of self-driven particles with short-range repulsive interactions is a useful minimal system to study active matter as the system exhibits collective motion and nonequilibrium order-disorder transitions. We studied high-aspect-ratio self-propelled rods over a wide range of packing fraction and driving to determine the nonequilibrium state diagram and dynamic properties. Flocking and nematic-laning states occupy much of the parameter space. In the flocking state the average internal pressure is high and structural and mechanical relaxation times are long, suggesting that rods in flocks are in a translating glassy state despite overall flock motion. In contrast, the nematic-laning state shows fluid-like behavior. The flocking state occupies regions of the state diagram at both low and high packing fraction separated by nematic-laning at low driving and a history-dependent region at higher driving; the nematic-laning state transitions to the flocking state for both compression and expansion. We propose that the laning-flocking transitions are a type of glass transition which, in contrast to other glass-forming systems, can show fluidization as density increases. The fluid internal dynamics and ballistic transport of the nematic-laning state may promote collective dynamics of rod-shaped microorganisms.
Gravitational lensing in the strong field limit for Kar's metric
Creators: name: Benavides, Carlos A.
name: Cardenas-Avendano, Alejandro
name: Larranaga, Alexis
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper we calculate the strong field limit deflection angle for a light ray passing near a scalar charged spherically symmetric object, described by a metric which comes from the low-energy limit of heterotic string theory. Then, we compare the expansion parameters of our results with those obtained in the Einstein's canonical frame, obtained by a conformal transformation, and we show that, at least at first order, the results do not agree.
description: v3: 18 pages, 5 figures, references and an Appendix added
Degeneration of Hitchin representations along internal sequences
Creators: name: Zhang, Tengren
Publisher: name: arXiv
Year: 2014
Subjects: subject: Geometric Topology (math.GT)
subject: Differential Geometry (math.DG)
subject: Dynamical Systems (math.DS)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: Using the work of Bonahon-Dreyer and Fock-Goncharov, one can construct a real-analytic parameterization for the PSL(n,R) Hitchin component of a surface S, that is explicitly analogous to the Fenchel-Nielsen coordinates on the Teichmuller space of S. Given a Hitchin representation, we give a lower bound on the "length" of any closed curve on S in terms of the parameters describing this representation. We then show that this lower bound is good enough to produce large families of sequences in the Hitchin component along which the topological entropy converges to 0.
description: Some typos from previous version corrected
Examples, proofs and algorithms for the verification of loop invariant of linear filters with Frama-C
Creators: name: Vedrine, Franck
name: Piriou, Pierre-Yves
name: David, Vincent
Publisher: name: Zenodo
Year: 2023
Subjects: digital linear filters
loop invariant
Frama-C
Hoare Logic
Abstract Interpretation
zonotopic domain
ellipsoid domain

description: This note describes additional material for the Frama-C book chapter "Analysis of Embedded Numerical Programs in the presence of Numerical Filters". It contains: the examples of digital filters defined in the paper with their ACSL annotations for a Frama-C static analysis, the implementation of the algorithm that generate an inductive invariant for the last second order filter of the chapter, the proofs of the different invariants in the files README.html and/or README.pdf.
Identifying the number of factors from singular values of a large sample auto-covariance matrix
Creators: name: Li, Zeng
name: Wang, Qinwen
name: Yao, Jianfeng
Publisher: name: arXiv
Year: 2014
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences
subject: Primary 62M10, 62H25, secondary 15B52

description: Identifying the number of factors in a high-dimensional factor model has attracted much attention in recent years and a general solution to the problem is still lacking. A promising ratio estimator based on the singular values of the lagged autocovariance matrix has been recently proposed in the literature and is shown to have a good performance under some specific assumption on the strength of the factors. Inspired by this ratio estimator and as a first main contribution, this paper proposes a complete theory of such sample singular values for both the factor part and the noise part under the large-dimensional scheme where the dimension and the sample size proportionally grow to infinity. In particular, we provide the exact description of the phase transition phenomenon that determines whether a factor is strong enough to be detected with the observed sample singular values. Based on these findings and as a second main contribution of the paper, we propose a new estimator of the number of factors which is strongly consistent for the detection of all significant factors (which are the only theoretically detectable ones). In particular, factors are assumed to have the minimum strength above the phase transition boundary which is of the order of a constant; they are thus not required to grow to infinity together with the dimension (as assumed in most of the existing papers on high-dimensional factor models). Empirical Monte-Carlo study as well as the analysis of stock returns data attest a very good performance of the proposed estimator. In all the tested cases, the new estimator largely outperforms the existing estimator using the same ratios of singular values.
description: This is a largely revised version of the previous manuscript (v1 & v2)
title: Primary Proximal ACL Repair: A Biomechanical Evaluation of Different Arthroscopic Suture Configurations
Creators: name: Roßlenbroich, Steffen Bernd
name: Achtnich, Andrea Ellen
name: Brodkorb, Cathrin
name: Kösters, Clemens
name: Kreis, Carolin Anna-Amalie
name: Metzlaff, Sebastian
name: Schliemann, Benedikt
name: Petersen, Wolf
Publisher: name: University of Muenster, Institutional Repository MIAMI
Year: 2023
Subjects: subject: 610 Medicine and health

description: Purpose: Several suture techniques have been described in the past for direct ACL repair with poor healing capacity and a high re-rupture rate. Therefore, we investigated a refixation technique for acute primary proximal ACL repair. The purpose of this study is to compare the biomechanical properties of different suture configurations using a knotless anchor. Methods: In this study, 35 fresh-frozen porcine knees underwent proximal ACL refixation. First, in 10 porcine femora, the biomechanical properties of the knotless anchor, without the ligament attached, were tested. Then, three different suture configurations were evaluated to reattach the remaining ACL. Using a material testing machine, the structural properties were evaluated for cyclic loading followed by loading to failure. Results: The ultimate failure load of the knotless anchor was 198, 76 N ± 23, 4 N significantly higher than all of the tested ACL suture configurations. Comparing the different configurations, the modified Kessler–Bunnell suture showed significant superior ultimate failure load, with 81, 2 N ± 15, 6 N compared to the twofold and single sutures (50, 5 N ± 14 N and 37, 5 ± 3, 8 N). In cyclic loading, there was no significant difference noted for the different configurations in terms of stiffness and elongation. Conclusions: The results of this in vitro study show that when performing ACL suture using a knotless anchor, a modified Kessler–Bunnell suture provides superior biomechanical properties than a single and a twofold suture. Within this construct, no failure at the bone–anchor interface was seen. Clinical relevance: Since primary suture repair techniques of ACL tears have been abandoned because of inconsistent results, ACL reconstruction remains the gold standard of treating ACL tears. However, with the latest improvements in surgical techniques, instrumentation, hardware and imaging, primary ACL suture repair might be a treatment option for a select group of patients. By establishing an arthroscopic technique in which proximal ACL avulsion can be reattached, the original ACL can be preserved by using a knotless anchor and a threefold suture configuration. Nevertheless, this technique provides an inferior ultimate failure load compared to graft techniques, so a careful rehabilitation program must be followed if using this technique in vivo.
description: Finanziert durch den Open-Access-Publikationsfonds der Universität Münster.
title: Contributions of Pulsed Operation Along with Proper Choice of the Substrate for Stabilizing the Catalyst Performance in Electrochemical Reduction of CO₂ Toward Ethylene in Gas Diffusion Electrode Based Flow Cell Reactors
Creators: name: Jännsch, Yannick
name: Hämmerle, Martin
name: Simon, Elfriede
name: Fleischer, Maximilian
name: Moos, Ralf
Publisher: name: University of Bayreuth
Year: 2022
Subjects: subject: electrochemical CO₂ reduction
subject: ethylene
subject: flow cells
subject: gas diffusion electrodes
subject: pulsed potential electrolysis
subject: 620

description: Electrochemical reduction of CO₂ is a promising method to close the carbon cycle and thereby contribute to counteracting climate change. A large share of the research is going into the development of new high-performance catalysts. Often, these catalysts are expensive and difficult to synthesize, especially if considering scaling up to the industrial application. The catalyst is, however, only one factor within the complex system of a CO₂-electrolyzer with numerous parameters to explore and optimize. Herein, an optimization process relying on a commercial copper nanopowder as a catalyst is reported. By replacing conductive carbon with polytetrafluoroethylene as the base material of the gas diffusion electrode (GDE) and applying a pulsed potential during electrolysis, the average faradaic efficiency for ethylene could be increased from 38% over 20 h to 50% over 100 h. In addition to the five times increased stability of the process, the ethylene-producing current density rises from 106 to 152 mA cm−2, respectively, while hydrogen evolution was simultaneously reduced. Additionally, further investigations on the interplay of GDE base material, binder, current collector, and catalyst on the electrode performance are presented.
When the forest screams : the rights of nature and indigenous rights as a mutually reinforcing resistance platform for the indigenous peoples of the Ecuadorian Amazon
Creators: name: Guzmán Torán, Juan José
Publisher: name: My University
Year: 2019
Subjects: indigenous people
environment
Amazonas
Ecuador
natural resources
natural heritage
cultural heritage
human rights violations

description: Second semester University: University of Deusto, Bilbao. Global Campus awarded thesis 2018/2019.
description: Indigenous peoples from the Ecuadorian Amazon have historically been dispossessed from their cultural heritage and ancestral territories. In the past, these actions have been justified by the need for natural resources derived from indigenous lands. However, this has led to the destruction of natural and culturally significant environments, in addition to other human rights violations. This research will focus on contemporary efforts by Ecuador to protect its nature through the auspices of constitutional and legislative regimes. In 2008, the government of Rafael Correa incorporated the ‘rights of nature’ into the Ecuadorian Constitution, which in essence gave nature legal personality. That is, nature became a subject of rights, to be protected despite human needs. In this context, the rights of nature protect nature from its commodification, thus contributing toward the fulfillment of indigenous peoples’ rights in extractivist contexts. This research explores the impact of this constitutional recognition, analyzing how indigenous Amazonian communities legally and politically use the rights of nature. Concerning the legal uses, lawsuits filed by indigenous groups, in circumstances where the rights of nature were invoked, tended to fail. Despite the legal obstacles, the rights of nature have been progressively incorporated into resistance-orientated discourses/actions of Amazonian indigenous communities, becoming a robust political tool against the destruction of traditional territories. The findings of this research support the conclusion that the incorporation of the rights of nature — into the Ecuadorian legal system and in human rights discourse/practices of Amazonian indigenous communities — empowers Amazonian Indigenous groups. Indigenous empowerment in this region has been found to comprise the ability to communicate in legal, political and epistemological spheres though resistance-based platforms. This form of engagement has been used as a vehicle to voice opposition to neocolonial practices as regards the exploitation of culturally significant natural environments and the destruction of ancestral lands.
THE IMPACT OF NON-PERFORMING LOANS ON FINANCIAL PERFORMANCE IN A SAMPLE OF IRAQI COMMERCIAL BANKS – (THE BANK OF BAGHDAD IS A MODEL)
Creators: name: FATEN ZOGHLAMI, ISCAE, LIGUE
name: ALAA JUMAAH KHAZAAL AL-RUKABAWI
name: ABBAS FADHIL HASAN AL-LUHALBI
Publisher: name: Zenodo
Year: 2023
Subjects: Non-Performing Loans, Financial Performance

description: Abstract
The process of granting loans from banks is considered as the trust they give to their customers, but this trust should not be a basic foundation when granting loans, even if these loans are granted according to sound banking principles, which entail risks that the bank may be exposed to due to the customer's refusal to fulfill his financial obligations to the bank. Perhaps due to the unexpected economic conditions that affect customers, which puts them in a state of default, which weakens the ability of banks to provide loans, which is considered one of the most important sources of achieving returns and profits for banks. Therefore, the problem of non-performing loans is considered one of the main problems facing most banks, which hinders their work. Among the reasons that led to the exacerbation of the problem of banking default is the lack of soundness and study of credit decisions in the event of granting loans, errors in the economic feasibility study, failure to adhere to the procedures and controls of credit policies within the bank, in addition to the embezzlement and theft to which the bank is exposed, and the inefficiency of banking management. To avoid this problem, it is necessary to Study it carefully, using scientific methods with regard to credit decisions and guarantees, which differ according to the type of loan. In the case of long-term loans, their risks are high, as the problem lies in the Bank of Baghdad, which is the largest Iraqi bank here, with the high volume of non-performing loans in it and its incurring large losses due to bad loans, which affected This negatively affects its profits and reserves, and the bank deducts a portion of its profits to meet unrecovered debts allocated to doubtful debts despite the decrease in its capital. This is due to the Bank of Baghdad's failure to adhere to the instructions of the Central Bank of Iraq, especially with regard to the adequacy of capital and the guidelines for credit classification, which reflects the inefficiency of the bank's management. In addressing the problem of defaulting loans.
A biomarker and isotope study of Paleoproterozoic ecosystems in the northern Australian McArthur Basin
Creators: name: Vinnichenko, Galina
Publisher: name: The Australian National University
Year: 2021

description: Biomarkers represent an important source of information about ancient environments, especially in the Paleoproterozoic, where the body fossil record is comparatively scarce. The northern Australian McArthur Basin contains currently the oldest known indigenous biomarkers in the 1.64 Ga Barney Creek Formation (Fm). Based on published biomarker data, the oceans were almost exclusively inhabited by prokaryotic microorganisms, while eukaryotes with complex cell structure still played an insignificant role. However, newly recognized protosteroids in the Barney Creek Fm may record early stages in eukaryotic evolution. This thesis, which consists of four linked research topics, investigates biological community signatures and paleo-environments in a transect through the Barney Creek Fm succession and circumjacent units; explores preservation of organic matter associated with the Paleoproterozoic McArthur River zinc-lead ore deposit; and describes the influence of thermal maturity on compound-specific carbon and hydrogen isotopic composition of lipids in the Barney Creek Fm. Additionally, this research presents the discovery of trimethyl aryl isoprenoids from carbonaceous shales of the 1.73 Ga Wollogorang Fm in the McArthur Basin, revealing the activity of phototrophic bacteria and extending the biomarker record back in time by ~90 million years.