cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Review for AI-based Open-Circuit Faults Diagnosis Methods in Power Electronics Converters
Creators: name: Liu, Chuang
name: Kou, Lei
name: Cai, Guowei
name: Zhao, Zihan
name: Zhang, Zhe
Publisher: name: arXiv
Year: 2022
Subjects: subject: Systems and Control (eess.SY)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences
subject: I.2
subject: 68T99

description: Power electronics converters have been widely used in aerospace system, DC transmission, distributed energy, smart grid and so forth, and the reliability of power electronics converters has been a hotspot in academia and industry. It is of great significance to carry out power electronics converters open-circuit faults monitoring and intelligent fault diagnosis to avoid secondary faults, reduce time and cost of operation and maintenance, and improve the reliability of power electronics system. Firstly, the faults features of power electronic converters are analyzed and summarized. Secondly, some AI-based fault diagnosis methods and application examples in power electronics converters are reviewed, and a fault diagnosis method based on the combination of random forests and transient fault features is proposed for three-phase power electronics converters. Finally, the future research challenges and directions of AI-based fault diagnosis methods are pointed out.
description: Power System Technology
Interfacial dead layer effects on current-voltage characteristics in asymmetric ferroelectric tunnel junctions
Creators: name: Sun, Ping
name: Wu, Yin-Zhong
name: Zhu, Su-Hua
name: Cai, Tian-Yi
name: Ju, Sheng
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Current-voltage characteristics and $P-E$ loops are simulated in SrRuO$_{3}$/BaTiO$_{3}$/Pt tunneling junctions with interfacial dead layer. The unswitchable interfacial polarization is coupled with the screen charge and the barrier polarization self-consistently within the Thomas-Fermi model and the Landau-Devonshire theory. The shift of P-E loop from the center position and the unequal values of the positive coercive field and the negative coercive field are found, which are induced by the asymmetricity of interface dipoles. A complete J-V curve of the junction is shown for different barrier thickness, and the effect of the magnitude of interfacial polarization on the tunneling current is also investigated.
Meteorologia Helvetica ab A. 1719 ad finem A. 1730
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1719

description: Akten des "Collegium medicum" in Zürich, von Johann Jacob Scheuchzer (1672-1733) als Materialsammlung zu einer Fortsetzung des Werkes "Meteorologia Helvetica" (Ms Z VIII 1) zusammengestellt; Inhalt: Periodische Rapporte über den gesundheitlichen Zustand der Bevölkerung und über Viehseuchen, Medizinische Gutachten, monatliche Witterungsberichte, Listen und synoptische Tabellen über tägliche Barometerstände in Zürich, Gotthard-Hospiz, Nürnberg und Turin, pluviometrische und hygrometrische Messungen, Wasserstände der Limmat, des Rheins bei Strassburg usw.
Cumulants on Wiener chaos: moderate deviations and the fourth moment theorem
Creators: name: Schulte, Matthias
name: Thaele, Christoph
Publisher: name: arXiv
Year: 2014
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: Primary 60F10, 60H05, Secondary 60G15

description: A moderate deviation principle as well as moderate and large deviation inequalities for a sequence of elements living inside a fixed Wiener chaos associated with an isonormal Gaussian process are shown. The conditions under which the results are derived coincide with those of the celebrated fourth moment theorem of Nualart and Peccati. The proofs rely on sharp estimates for cumulants. As applications, explosive integrals of a Brownian sheet, a discretized version of the quadratic variation of a fractional Brownian motion and the sample bispectrum of a spherical Gaussian random field are considered.
Stabilization of hepatitis C virus RNA by an Ago2-miR-122 complex
Creators: name: Lemon, S. M.
name: Shimakami, T.
name: Barton, D. J.
name: Jangra, R. K.
name: Yamane, D.
name: Spaniel, C.
name: Kempf, B. J.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: MicroRNAs (miRNAs) are small noncoding RNAs that regulate eukaryotic gene expression by binding to regions of imperfect complementarity in mRNAs, typically in the 3′ UTR, recruiting an Argonaute (Ago) protein complex that usually results in translational repression or destabilization of the target RNA. The translation and decay of mRNAs are closely linked, competing processes, and whether the miRNA-induced silencing complex (RISC) acts primarily to reduce translation or stability of the mRNA remains controversial. miR-122 is an abundant, liver-specific miRNA that is an unusual host factor for hepatitis C virus (HCV), an important cause of liver disease in humans. Prior studies show that it binds the 5′ UTR of the messenger-sense HCV RNA genome, stimulating translation and promoting genome replication by an unknown mechanism. Here we show that miR-122 binds HCV RNA in association with Ago2 and that this slows decay of the viral genome in infected cells. The stabilizing action of miR-122 does not require the viral RNA to be translationally active nor engaged in replication, and can be functionally substituted by a nonmethylated 5′ cap. Our data demonstrate that a RISC-like complex mediates the stability of HCV RNA and suggest that Ago2 and miR-122 act coordinately to protect the viral genome from 5′ exonuclease activity of the host mRNA decay machinery. miR-122 thus acts in an unconventional fashion to stabilize HCV RNA and slow its decay, expanding the repertoire of mechanisms by which miRNAs modulate gene expression.
Brief an Peter Werenfels
Creators: name: Bernoulli, Jakob
Publisher: name: [s.n.]
Year: 1676

description: von J[acob I] Bernoulli
description: Das zweite Blatt diente als Briefumschlag und trägt Siegel sowie Adresse
description: Öffentliche Bibliothek der Universität Basel
description: Lateinisch
description: Druck: Jac. B. Briefe, pp.201-202
description: Datenimport aus LIDOS / Bernoulli (2004-07-02)
description: Verzeichnung=Description=Inventaire Juli 2023 HAN-Katalogisierungsregeln Revision nach Vorlage nni
The receptor tyrosine kinase ErbB3 maintains the balance between luminal and basal breast epithelium
Creators: name: Arteaga, C. L.
name: Hutchinson, K.
name: Young, C.
name: Perou, C. M.
name: Sanchez, V.
name: Prat, A.
name: Polyak, K.
name: Morrison, M. M.
name: Jee, D.
name: Cook, R. S.
name: Balko, J. M.
name: Miller, T. W.
name: Rinehart, C.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: ErbB3 harbors weak kinase activity, but strongly activates downstream phosphatidylinositol 3-kinase/Akt signaling through heterodimerization with and activation by other ErbB receptor tyrosine kinases. We report here that ErbB3 loss in the luminal mammary epithelium of mice impaired Akt and MAPK signaling and reduced luminal cell proliferation and survival. ERBB3 mRNA expression levels were highest in luminal mammary populations and lowest in basal cell/stem cell populations. ErbB3 loss in mammary epithelial cells shifted gene expression patterns toward a mammary basal cell/stem cell signature. ErbB3 depletion-induced gene expression changes were rescued upon activation of Akt and MAPK signaling. Interestingly, proliferation and expansion of the mammary basal epithelium (BE) occurred upon ErbB3 targeting in the luminal epithelium, but not upon its targeting in the BE. Multiple cytokines, including interleukin 6, were induced upon ErbB3 depletion in luminal epithelium cells, which increased growth of BE cells. Taken together, these results suggest that ErbB3 regulates the balance of differentiated breast epithelial cell types by regulating their growth and survival through autocrine- and paracrine-signaling mechanisms.
GO_18, files from linear-scaling DFT and non-bonded parameters calculations
Creators: name: Pinto, Alexandre V.
Publisher: name: Zenodo
Year: 2022

description: Coordinates, topology, electron density cube file and files from Chargemol analysis for GO_18 obtained through Linear-Scaling Calculations in CP2K (check https://doi.org/10.1021/acs.jpcb.2c06037)
Mapping the surface of pulsating magnetic stars with Zeeman-Doppler imaging
Creators: name: Gutteridge, Chloe
name: Neiner, Coralie
name: Catala, Claude
Publisher: name: Zenodo
Year: 2024

description: Zeeman-Doppler Imaging (ZDI) is a technique that inverts a series of spectropolarimetric data allowing the reconstruction of the magnetic geometry and field strength of a star. It has been proven to be a powerful tool in understanding the complexity and configuration of stellar magnetic fields. Previously, it has been performed on the assumption that both the surface brightness and line profiles vary only with rotation. These are not valid assumptions for pulsating stars and can lead to errors in the magnetic field strength and geometry. I present the application to modelled pulsating stars of the first code able to correctly map the surface of magnetic pulsators, and contrast it to results that would be achieved by standard ZDI. By modelling the pulsations which could be observed by space photometry missions like TESS, we can include their additional effects in new time-dependent surface brightness maps and synthetic line profiles to fit spectropolarimetric observations. This modification of the open source ZDI code of Folsom et al. (2018) will lead to improved accuracy in stellar and magnetic properties, allowing us to perform a rigorous analysis of magneto-asteroseismic data, an essential step in the magneto-asteroseismic modelling of the internal structure of stars.
27 Briefe an [Johann Gerhard] Hasencamp
Brief an Hasenkamp ...
Creators: name: Lavater, Johann Caspar
Publisher: name: [s.n.]
Year: 1772

description: von Johann Caspar Lavater
description: Dabei 1 Brief von Johann Konrad Pfenninger an Johann Gerhard Hasenkamp (Nr. 173)
description: Hasenkamp: Rector in Duisburg
description: Davon 1 Brief mit zwei Jahresangaben, dat. Zürich, 14.1.72/73 (Nr. 158), Jahr erschlossen aus Gegenbrief FA Lav Ms 511.206, dat. 25.1.1772
Theoretical study of catalytic mechanism for single-site water oxidation process
Creators: name: Liu, S.
name: Yang, W.
name: Lin, X.
name: Chen, Z.
name: Concepcion, J. J.
name: Meyer, T. J.
name: Hu, X.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: Water oxidation is a linchpin in solar fuels formation, and catalysis by single-site ruthenium complexes has generated significant interest in this area. Combining several theoretical tools, we have studied the entire catalytic cycle of water oxidation for a single-site catalyst starting with [RuII(tpy)(bpm)(OH2)]2+ (i.e., [RuII-OH2]2+; tpy is 2,2′∶6′,2′′-terpyridine and bpm is 2,2′-bypyrimidine) as a representative example of a new class of single-site catalysts. The redox potentials and pKa calculations for the first two proton-coupled electron transfers (PCETs) from [RuII-OH2]2+ to [RuIV = O]2+ and the following electron-transfer process to [RuV = O]3+ suggest that these processes can proceed readily in acidic or weakly basic conditions. The subsequent water splitting process involves two water molecules, [RuV = O]3+ to generate [RuIII-OOH]2+, and H3O+ with a low activation barrier (∼10 kcal/mol). After the key O---O bond forming step in the single-site Ru catalysis, another PECT process oxidizes [RuIII-OOH]2+ to [RuIV-OO]2+ when the pH is lower than 3.7. Two possible forms of [RuIV-OO]2+, open and closed, can exist and interconvert with a low activation barrier (< 7 kcal/mol) due to strong spin-orbital coupling effects. In Pathway 1 at pH = 1.0, oxygen release is rate-limiting with an activation barrier ∼12 kcal/mol while the electron-transfer step from [RuIV-OO]2+ to [RuV - OO]3+ becomes rate-determining at pH = 0 (Pathway 2) with Ce(IV) as oxidant. The results of these theoretical studies with atomistic details have revealed subtle details of reaction mechanisms at several stages during the catalytic cycle. This understanding is helpful in the design of new catalysts for water oxidation.
A functional genomic perspective on human well-being
Creators: name: Cole, S. W.
name: Grewen, K. M.
name: Arevalo, J. M. G.
name: Firestine, A. M.
name: Fredrickson, B. L.
name: Ma, J.
name: Algoe, S. B.
name: Coffey, K. A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: To identify molecular mechanisms underlying the prospective health advantages associated with psychological well-being, we analyzed leukocyte basal gene expression profiles in 80 healthy adults who were assessed for hedonic and eudaimonic well-being, as well as potentially confounded negative psychological and behavioral factors. Hedonic and eudaimonic well-being showed similar affective correlates but highly divergent transcriptome profiles. Peripheral blood mononuclear cells from people with high levels of hedonic well-being showed up-regulated expression of a stress-related conserved transcriptional response to adversity (CTRA) involving increased expression of proinflammatory genes and decreased expression of genes involved in antibody synthesis and type I IFN response. In contrast, high levels of eudaimonic well-being were associated with CTRA down-regulation. Promoter-based bioinformatics implicated distinct patterns of transcription factor activity in structuring the observed differences in gene expression associated with eudaimonic well-being (reduced NF-κB and AP-1 signaling and increased IRF and STAT signaling). Transcript origin analysis identified monocytes, plasmacytoid dendritic cells, and B lymphocytes as primary cellular mediators of these dynamics. The finding that hedonic and eudaimonic well-being engage distinct gene regulatory programs despite their similar effects on total well-being and depressive symptoms implies that the human genome may be more sensitive to qualitative variations in well-being than are our conscious affective experiences.
Gravitons and a complex of differential operators
Creators: name: Krasnov, Kirill
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Gravity is now understood to become simple on-shell. We sketch how it becomes simple also off-shell, when reformulated appropriately. Thus, we describe a simple Lagrangian for gravitons that makes use of a certain complex of differential operators. The Lagrangian is constructed analogously to that of Maxwell's theory, just using a different complex. The complex, and therefore also our description of gravitons, makes sense on any half-conformally flat four-dimensional manifold.
description: 8 pages, 2 diagrams
Dengue in Madeira Island
Creators: name: Rodrigues, Helena Sofia
name: Monteiro, M. Teresa T.
name: Torres, Delfim F. M.
name: Silva, Ana Clara
name: Sousa, Carla
name: Conceição, Cláudia
Publisher: name: arXiv
Year: 2014
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Optimization and Control (math.OC)
subject: FOS: Biological sciences
subject: FOS: Mathematics

description: Dengue is a vector-borne disease and 40% of world population is at risk. Dengue transcends international borders and can be found in tropical and subtropical regions around the world, predominantly in urban and semi-urban areas. A model for dengue disease transmission, composed by mutually-exclusive compartments representing the human and vector dynamics, is presented in this study. The data is from Madeira, a Portuguese island, where an unprecedented outbreak was detected on October 2012. The aim of this work is to simulate the repercussions of the control measures in the fight of the disease.
description: This is a preprint of a paper whose final and definite form will be published in the volume 'Mathematics of Planet Earth' that initiates the book series 'CIM Series in Mathematical Sciences' (CIM-MS) published by Springer. Submitted Oct/2013; Revised 16/July/2014 and 20/Sept/2014; Accepted 28/Sept/2014
Renormalization of Subleading Dijet Operators in Soft-Collinear Effective Theory
Creators: name: Freedman, Simon M.
name: Goerke, Raymond
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We calculate the anomalous dimensions of the next-to-leading order dijet operators in soft-collinear effective theory (SCET). We use a formulation of SCET where the Lagrangian is multiple copies of QCD and the interactions between sectors occur through light-like Wilson lines in external currents. We introduce a small gluon mass to regulate the infrared divergences of the individual loop diagrams in order to properly extract the ultraviolet divergences. We discuss this choice of infrared regulator and contrast it with the $δ$-regulator. Our results can be used to increase the theoretical precision of the thrust distribution.
description: 20 pages, 3 figures. Corrected typos, added references. Changed formatting
Computational scaling of SPH simulations for violent sloshing problems in aircraft fuel tanks
Creators: name: J. Calderon-Sanchez
name: L.M. Gonzalez
name: Martinez-Carrascal, Jon
Publisher: name: Zenodo
Year: 2023

description: The wings of large civil passenger aircrafts, which are designed to withstand the loads occurring from atmospheric gusts and turbulence to landing impacts, still demand further research. One of the means that is used to achieve such a goal is the research of damping effects that sloshing induces on the dynamics of flexible wing-like structures carrying liquids. This will be attained through the development of experimental set-ups that will help in building up numerical models that will be able to reproduce the physics involved. Hence, the aim of this work is to analyze the effect of sloshing in reducing the design loads on aircraft structures using the numerical method Smoothed Particle Hydrodynamics (SPH) as the main numerical tool. One of the key aspects in this research is the demand of scaled experiments, making it a necessary step to assess that computational tools are able to approximate the registered measurements for different scales accurately. Then, a numerical model of a vertically oscillating tank built as a fully coupled fluid-structure interaction problem is developed. The structure is modelled through a mass-spring-damper system, and for the inner fluid the δ-LES-SPH methodology is used. In particular, two open questions are studied: the first one is to what extend the gravity has an influence on the damping and energy dissipation phenomena when the initial acceleration of the tank is ten times the standard gravity value. The second wants to confirm that the SPH equations reproduce correctly the scaling laws when the problem parameters are scaled according to the dimensional analysis.
Accelerating slow excited state proton transfer
Creators: name: Meyer, T. J.
name: Concepcion, J. J.
name: Stewart, D. J.
name: Brennaman, M. K.
name: Binstead, R. A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: Visible light excitation of the ligand-bridged assembly [(bpy)2RuaII(L)RubII(bpy)(OH2)4+] (bpy is 2,2′-bipyridine; L is the bridging ligand, 4-phen-tpy) results in emission from the lowest energy, bridge-based metal-to-ligand charge transfer excited state (L−•)RubIII-OH2 with an excited-state lifetime of 13 ± 1 ns. Near–diffusion-controlled quenching of the emission occurs with added HPO42− and partial quenching by added acetate anion (OAc−) in buffered solutions with pH control. A Stern–Volmer analysis of quenching by OAc− gave a quenching rate constant of kq = 4.1 × 108 M−1⋅s−1 and an estimated pKa* value of ∼5 ± 1 for the [(bpy)2RuaII(L•−)RubIII(bpy)(OH2)4+]* excited state. Following proton loss and rapid excited-state decay to give [(bpy)2RuaII(L)RubII(bpy)(OH)3+] in a H2PO4−/HPO42− buffer, back proton transfer occurs from H2PO4− to give [(bpy)2RuaII(L)Rub(bpy)(OH2)4+] with kPT,2 = 4.4 × 108 M−1⋅s−1. From the intercept of a plot of kobs vs. [H2PO4−], k = 2.1 × 106 s−1 for reprotonation by water providing a dramatic illustration of kinetically limiting, slow proton transfer for acids and bases with pKa values intermediate between pKa(H3O+) = −1.74 and pKa(H2O) = 15.7.
Accurate SHAPE-directed RNA secondary structure modeling, including pseudoknots
Creators: name: Leonard, C. W.
name: Mathews, D. H.
name: Bellaousov, S.
name: Weeks, K. M.
name: Hajdin, C. E.
name: Huggins, W.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: A pseudoknot forms in an RNA when nucleotides in a loop pair with a region outside the helices that close the loop. Pseudoknots occur relatively rarely in RNA but are highly overrepresented in functionally critical motifs in large catalytic RNAs, in riboswitches, and in regulatory elements of viruses. Pseudoknots are usually excluded from RNA structure prediction algorithms. When included, these pairings are difficult to model accurately, especially in large RNAs, because allowing this structure dramatically increases the number of possible incorrect folds and because it is difficult to search the fold space for an optimal structure. We have developed a concise secondary structure modeling approach that combines SHAPE (selective 2′-hydroxyl acylation analyzed by primer extension) experimental chemical probing information and a simple, but robust, energy model for the entropic cost of single pseudoknot formation. Structures are predicted with iterative refinement, using a dynamic programming algorithm. This melded experimental and thermodynamic energy function predicted the secondary structures and the pseudoknots for a set of 21 challenging RNAs of known structure ranging in size from 34 to 530 nt. On average, 93% of known base pairs were predicted, and all pseudoknots in well-folded RNAs were identified.
Transport signatures of superconducting hybrids with mixed singlet and chiral triplet states
Creators: name: Burset, Pablo
name: Keidel, Felix
name: Tanaka, Yukio
name: Nagaosa, Naoto
name: Trauzettel, Björn
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We propose a model for a superconductor where both spin-singlet and chiral triplet pairing amplitudes can coexist. By solving the Bogoliubov-de Gennes equations with a general pair potential that accounts for both spin states we study experimental signatures of normal metal and superconductor hybrids. The interplay between the spin-singlet and triplet correlations manifests in the appearance of two effective gaps. When the amplitude of the spin-triplet component is stronger than that of the spin-singlet, a topological phase transition into a non-trivial regime occurs. As a result, the normal metal-superconductor conductance evolves from a conventional gap profile onto an unconventional zero-bias peak. Additionally, in the topologically non-trivial phase, Andreev bound states formed at Josephson junctions present zero-energy modes; the number of those modes depends on the relative chirality of the junction. Finally, we present results for the current-phase relation and the temperature dependence of the Josephson critical current within both topological phases for several system parameters.
description: 12 pages, 6 figures
Spatial characterization of the edge barrier in wide superconducting films
Creators: name: Sivakov, A. G.
name: Turutanov, O. G.
name: Kolinko, A. E.
name: Pokhila, A. S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The current-induced destruction of superconductivity is discussed in wide superconducting thin film strips, whose width is greater than the magnetic field penetration depth, in weak magnetic fields. Particular attention is paid to the role of the edge potential barrier (the Bean-Livingston barrier) in critical state formation and detection of the edge responsible for this critical state with different mutual orientations of external perpendicular magnetic field and transport current. Critical and resistive states of the thin film strip were visualized using the space-resolving low-temperature laser scanning microscopy (LTLSM) method, which enables detection of critical current-determining areas on the thin film edges. Based on these observations, a simple technique was developed for investigation of the critical state separately at each film edge, and for the estimation of residual magnetic fields in cryostats. The proposed method only requires recording of the current-voltage characteristics of the thin film in a weak magnetic field, thus circumventing the need for complex LTLSM techniques. Information thus obtained is particularly important for interpretation of studies of superconducting thin film single-photon light emission detectors.
description: 9 pages, 7 figures. The changes in this post-print version include improved English, modified sectioning, colored Figs.3 and 4, extended format of bibliography (paper titles with DOI are added). Results are unchanged
Activation of heme biosynthesis by a small molecule that is toxic to fermenting Staphylococcus aureus
Creators: name: Skaar, E. P.
name: Reid, P. R.
name: Kehl-Fie, T. E.
name: DuBois, J. L.
name: Mike, L. A.
name: Aranmolate, O.
name: Caprioli, R. M.
name: Stauff, D. L.
name: Vitko, N. P.
name: Sullivan, S.
name: Richardson, A. R.
name: Dutter, B. F.
name: Moore, J. L.
name: Sulikowski, G. A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: Staphylococcus aureus is a significant infectious threat to global public health. Acquisition or synthesis of heme is required for S. aureus to capture energy through respiration, but an excess of this critical cofactor is toxic to bacteria. S. aureus employs the heme sensor system (HssRS) to overcome heme toxicity; however, the mechanism of heme sensing is not defined. Here, we describe the identification of a small molecule activator of HssRS that induces endogenous heme biosynthesis by perturbing central metabolism. This molecule is toxic to fermenting S. aureus, including clinically relevant small colony variants. The utility of targeting fermenting bacteria is exemplified by the fact that this compound prevents the emergence of antibiotic resistance, enhances phagocyte killing, and reduces S. aureus pathogenesis. Not only is this small molecule a powerful tool for studying bacterial heme biosynthesis and central metabolism; it also establishes targeting of fermentation as a viable antibacterial strategy.
A new dipolar potential for numerical simulations of polar fluids on the $4\mathrm{D}$ hypersphere
Creators: name: Caillol, Jean-Michel
name: Trulsson, Martin
Publisher: name: arXiv
Year: 2014
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We present a new method for Monte Carlo or Molecular Dynamics numerical simulations of three dimensional polar fluids. The simulation cell is defined to be the surface of the northern hemisphere of a four-dimensional (hyper)sphere. The point dipoles are constrained to remain tangent to the sphere and their interactions are derived from the basic laws of electrostatics in this geometry. The dipole-dipole potential has two singularities which correspond to the following boundary conditions : when a dipole leaves the northern hemisphere at some point of the equator, it reappears at the antipodal point bearing the same dipole moment. We derive all the formal expressions needed to obtain the thermodynamic and structural properties of a polar liquid at thermal equilibrium in actual numerical simulation. We notably establish the expression of the static dielectric constant of the fluid as well as the behavior of the pair correlation at large distances. We report and discuss the results of extensive numerical Monte Carlo simulations for two reference states of a fluid of dipolar hard spheres and compare these results with previous methods with a special emphasis on finite size effects.
description: 32 pages, 6 figures, 4 tables
A Survey on Deadline Constrained Workflow Scheduling Algorithms in Cloud Environment
Creators: name: R., Nallakumar
name: S, Sruthi Priya K.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Cloud Computing is the latest blooming technology in the era of Computer Science and Information Technology domain. There is an enormous pool of data centres, which are termed as Clouds where the services and associated data are being deployed and users need a constant Internet connection to access them. One of the highlights in Cloud is the delivering of applications or services in an on-demand environment. One of the most promising areas in Cloud scheduling is Scheduling of workflows which is intended to match the request of the user to the appropriate resources. There are several algorithms to automate the workflows in a way to satisfy the Quality of service (QoS) of the user among which deadline is considered as a major criterion, i.e. Satisfying the needs of the user with minimized cost and within the minimum stipulated time. This paper surveys various workflow scheduling algorithms that have a deadline as its criterion.
description: 6 pages,2 figures,Published with International Journal of Computer Science Trends and Technology(IJCST)
An unusual CsrA family member operates in series with RsmA to amplify posttranscriptional responses in Pseudomonas aeruginosa
Creators: name: Marden, J. N.
name: Betts, L.
name: Gode, C. J.
name: Urbanowski, M. L.
name: Walton, W. G.
name: Yahr, T. L.
name: Diaz, M. R.
name: Redinbo, M. R.
name: Wolfgang, M. C.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: Members of the CsrA family of prokaryotic mRNA-binding proteins alter the translation and/or stability of transcripts needed for numerous global physiological processes. The previously described CsrA family member in Pseudomonas aeruginosa (RsmA) plays a central role in determining infection modality by reciprocally regulating processes associated with acute (type III secretion and motility) and chronic (type VI secretion and biofilm formation) infection. Here we describe a second, structurally distinct RsmA homolog in P. aeruginosa (RsmF) that has an overlapping yet unique regulatory role. RsmF deviates from the canonical 5 β-strand and carboxyl-terminal α-helix topology of all other CsrA proteins by having the α-helix internally positioned. Despite striking changes in topology, RsmF adopts a tertiary structure similar to other CsrA family members and binds a subset of RsmA mRNA targets, suggesting that RsmF activity is mediated through a conserved mechanism of RNA recognition. Whereas deletion of rsmF alone had little effect on RsmA-regulated processes, strains lacking both rsmA and rsmF exhibited enhanced RsmA phenotypes for markers of both type III and type VI secretion systems. In addition, simultaneous deletion of rsmA and rsmF resulted in superior biofilm formation relative to the wild-type or rsmA strains. We show that RsmF translation is derepressed in an rsmA mutant and demonstrate that RsmA specifically binds to rsmF mRNA in vitro, creating a global hierarchical regulatory cascade that operates at the posttranscriptional level.
Emission and recombination coefficients for hydrogen with kappa-distributed electron energies
Creators: name: Storey, P. J.
name: Sochi, Taha
Publisher: name: arXiv
Year: 2014
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We provide a data set of emission and recombination coefficients of hydrogen using a kappa-distribution of electron energies rather than the more traditional Maxwell-Boltzmann (MB) distribution. The data are mainly relevant to thin and relatively cold plasma found in planetary nebulae and H II regions. The data set extends the previous data sets provided by Storey and Hummer which were computed using a MB distribution. The data set, which is placed in the public domain, is structured as a function of electron number density, temperature and kappa. Interactive fortran 77 and C++ data servers are also provided as an accessory to probe the data and obtain Lagrange-interpolated values for any choice of all three variables between the explicitly computed values.
description: 3 pages
title: Examining female coach burnout experiences and coping mechanisms
Creators: name: Miles, Amanda
Publisher: name: Memorial University of Newfoundland
Year: 2023

description: In 2019, the World Health Organization added burnout to its classification of chronic diseases as a workplace illness explaining that it is the result of chronic stress from the workplace that is left unmanaged. Recent research has considered the effects of burnout in various professions. However, research on the effects of burnout in the profession of coaching is still in its infancy. Even less research has been done on burnout in elite female coaches. Using semi-structured interviews, this study examined 14 elite female basketball coaches’ experiences with burnout, how they have managed it, and what they feel is essential for other coaches and organizations to know about burnout. Interviews were conducted over Zoom, and the results were combined and coded into 4 significant themes: Experiences (participants experiences with burnout), Management (ways participants managed/coped with burnout), Education (ways participants would like to receive information about burnout), and Recommendations (recommendation participants had for coaches and organization about burnout). The results provide advice to coaches and organizations based on the experiences of coaches who have reached (or are on their way to reaching) some of the highest levels of coaching in Canada.
Data Files of Suitability of NASA's Black Marble Daily Nighttime Lights for Population Studies at Varying Spatial and Temporal Scales
Creators: name: Martinez, Juan Fernando
name: MacManus, Kytt
name: Stokes, Elanor C.
name: Wang, Zhuosen
Publisher: name: GEO Knowledge Hub
Year: 2023
Subjects: Remote Sensing
Population
Sustainable Development

description: This Knowledge Package provides data for the research paper titled "Suitability of NASA's Black Marble Daily Nighttime Lights for Population Studies at Varying Spatial and Temporal Scales."
The data presented includes four .xlsx spreadsheets, one per case study, and a validation folder that contains data files used for validation of the results in the appendix sections of the research paper. 
This paper investigates the potential link between changes in NASA's Black Marble VIIRS/NPP Gap-Filled Lunar BRDF-Adjusted Nighttime Lights Daily L3 Global 500m Linear Lat Lon Grid (VNP46A2) nighttime lights product (NTL), and human dynamics, particularly population counts and changes at a variety of spatial and temporal scales. We conducted analyses in four case studies at varying resolutions to explore the relationship of NTL data for population studies, including demographic research, disaster mitigation and adaptation planning, and infrastructure development. The analyses were conducted using different administrative geographies, including a refugee camp, a sub-national region, and a country. We compared changes in population counts, density, migration, and displacement against changes in daily, weekly, monthly, and annual NTL values. Our case study results demonstrate that out-migration does not always lead to a decrease in NTL. We found that rural population decline did not correspond to a decrease in NTL. Despite significant out-migration in many rural areas NTL remained largely unchanged. NTL provided essential information on infrastructure damage in the short-term aftermath of this disaster; however, NTL alone was not correlated to the location of displaced individuals. Through news reports we were able to corroborate the NTL changes to downtimes of the electrical systems. Monthly NTL averages were highly correlated to population counts, but a pixel-level analysis showed the changes in NTL were primarily attributed to economic diversification. In summary, NTL is the product of several factors including demographic, environmental, economic, and political forces that shape electricity infrastructure, and we suggest NTL data must first be parameterized with ancillary ground-level information in order to be effectively applied to population models.
Animals in a bacterial world, a new imperative for the life sciences
Creators: name: Dubilier, Nicole
name: Hadfield, Michael G.
name: King, Nicole
name: Nealson, Kenneth
name: McFall-Ngai, Margaret
name: Reid, Ann
name: Metcalf, Jessica L.
name: Domazet-Lošo, Tomislav
name: Hentschel, Ute
name: Rawls, John F.
name: Kjelleberg, Staffan
name: Douglas, Angela E.
name: Kremer, Natacha
name: Wernegreen, Jennifer J.
name: Carey, Hannah V.
name: Gilbert, Scott F.
name: Sanders, Jon G.
name: Mazmanian, Sarkis K.
name: Ruby, Edward G.
name: Pierce, Naomi E.
name: Eberl, Gerard
name: Tautz, Diethard
name: Rumpho, Mary
name: Bosch, Thomas C. G.
name: Knoll, Andrew H.
name: Fukami, Tadashi
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: In the last two decades, the widespread application of genetic and genomic approaches has revealed a bacterial world astonishing in its ubiquity and diversity. This review examines how a growing knowledge of the vast range of animal–bacterial interactions, whether in shared ecosystems or intimate symbioses, is fundamentally altering our understanding of animal biology. Specifically, we highlight recent technological and intellectual advances that have changed our thinking about five questions: how have bacteria facilitated the origin and evolution of animals; how do animals and bacteria affect each other’s genomes; how does normal animal development depend on bacterial partners; how is homeostasis maintained between animals and their symbionts; and how can ecological approaches deepen our understanding of the multiple levels of animal–bacterial interaction. As answers to these fundamental questions emerge, all biologists will be challenged to broaden their appreciation of these interactions and to include investigations of the relationships between and among bacteria and their animal partners as we seek a better understanding of the natural world.
Mapping Convenient Access to Public Transport in Cities with Global Open Data (SDG Indicator 11.2.1)
Creators: name: Center for International Earth Science Information Network
Publisher: name: GEO Knowledge Hub
Year: 2022

description: United Nations (UN) Sustainable Development Goal (SDG) 11 is "Make cities and human settlements inclusive, safe, resilient, and sustainable." Improving access to public transport services is integral in achieving the objectives of SDG 11. According to Sustainable Transport, Sustainable Development, a 2021 UN interagency report, "Only about half the world's urban population have convenient access to public transport." The report highlights that access to sustainable transport can help reduce food insecurity, boost economies, empower women, and connect people to key health, education, and finance services. In order to help monitor progress towards achieving SDG 11, the UN has established SDG indicator 11.2.1: "Proportion of population that has convenient access to public transport, by sex, age, and persons with disabilities."
This knowledge package includes resources related to the production of a data set presenting SDG indicator 11.2.1 for 5,749 urban centers across 178 countries, computed using global open data sources. Production of the data set was completed in support of the Population and Infrastructure on Our Human Planet project, part of the Group on Earth Observations (GEO) Human Planet Initiative (HPI).
The methodology employed was informed by the official UN SDG indicator metadata acquired from the SDG Indicators Metadata Repository.

Indicator 11.2.1: Proportion of population that has convenient access to public transport, by sex, age and persons with disabilities (version updated 2021-09-01)
Generalized Uncertainty Principle and Recent Cosmic Inflation Observations
Creators: name: Tawfik, Abdel Nasser
name: Diab, Abdel Magied
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The recent background imaging of cosmic extragalactic polarization (BICEP2) observations are believed as an evidence for the cosmic inflation. BICEP2 provided a first direct evidence for the inflation, determined its energy scale and debriefed witnesses for the quantum gravitational processes. The ratio of scalar-to-tensor fluctuations $r$ which is the canonical measurement of the gravitational waves, was estimated as $r=0.2_{-0.05}^{+0.07}$. Apparently, this value agrees well with the upper bound value corresponding to PLANCK $r\leq 0.012$ and to WMAP9 experiment $r=0.2$. It is believed that the existence of a minimal length is one of the greatest predictions leading to modifications in the Heisenberg uncertainty principle or a GUP at the Planck scale. In the present work, we investigate the possibility of interpreting recent BICEP2 observations through quantum gravity or GUP. We estimate the slow-roll parameters, the tensorial and the scalar density fluctuations which are characterized by the scalar field $ϕ$. Taking into account the background (matter and radiation) energy density, $ϕ$ is assumed to interact with the gravity and with itself. We first review the Friedmann-Lemaitre-Robertson-Walker (FLRW) Universe and then suggest modification in the Friedmann equation due to GUP. By using a single potential for a chaotic inflation model, various inflationary parameters are estimated and compared with the PLANCK and BICEP2 observations. While GUP is conjectured to break down the expansion of the early Universe (Hubble parameter and scale factor), two inflation potentials based on certain minimal supersymmetric extension of the standard model result in $r$ and spectral index matching well with the observations. Corresponding to BICEP2 observations, our estimation for $r$ depends on the inflation potential and the scalar field. A power-law inflation potential does not.
description: To appear in Phys. Rev. D, 28 pages, 6 figures, 15 eps graphs
MPEC 2023-L21 : DAILY ORBIT UPDATE (2023 June 6)
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Quasi-bound States and Resonant Skew Scattering in Two-Dimensional Materials with a Mexican-Hat Dispersion
Creators: name: Sablikov, Vladimir A.
name: Sukhanov, Aleksei A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Mexican-hat dispersion of band electrons in two-dimensional materials attracts a lot of interest, mainly due to the Van Hove singularity of the density of states near the band edge. In this paper, we show that there is one more feature of such a dispersion, which also leads to nontrivial effects. It consists in the fact that the sign of the effective mass in the momentum space near the central extremum is opposite to the sign of the mass outside this region. For this reason, any localized potential that repels quasiparticles in the outer region attracts quasiparticles in the central region and thereby creates quasi-bound states. We study these states in the case when the Mexican-hat dispersion is formed due to the hybridization of the inverted electron and hole bands, and the potential is created by a point defect. The energy and width of the resonance of the local density of states corresponding to a quasi-bound state are found, and it is shown that, under certain conditions, a quasi-bound state can transform into a bound state in a continuum of band states. The presence of quasi-bound states leads to nontrivial effects in the spin-dependent scattering of electrons. Due to the quasi-bound state, the skew scattering is strongly enhanced for electrons with energy near the resonance, and the skewness angle varies over a wide range depending on the energy. In addition, in a certain energy range, a nontrivial effect of scattering suppression appears in the direction opposite to the skewness angle.
description: 9 pages, 5 figures, accepted in Physica E: Low-dimensional Systems and Nanostructures
title: Cyclisch konjugierte 5- und 7-Ringsysteme, III. Synthese und Struktur des α-(6-Fulvenyl)dibenzo[a,e]heptafulvens
Creators: name: Lindner, Hans Jörg
name: Hafner, Klaus
name: Römer, Michael
name: Gross, Brigitte von
Publisher: name: Wiley-VCH
Year: 2023

description: Es werden Synthese, physikalische Eigenschaften und Ergebnisse der Röntgenstrukturanalyse der im Titel genannten Verbindung beschrieben. Der Kohlenwasserstoff weist einen bootförmigen 7 gliedrigen Ring und deutliche Bindungsalternanz auf.
Biclustering with heterogeneous variance
Creators: name: Sullivan, P. F.
name: Chen, G.
name: Kosorok, M. R.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: In cancer research, as in all of medicine, it is important to classify patients into etiologically and therapeutically relevant subtypes to improve diagnosis and treatment. One way to do this is to use clustering methods to find subgroups of homogeneous individuals based on genetic profiles together with heuristic clinical analysis. A notable drawback of existing clustering methods is that they ignore the possibility that the variance of gene expression profile measurements can be heterogeneous across subgroups, and methods that do not consider heterogeneity of variance can lead to inaccurate subgroup prediction. Research has shown that hypervariability is a common feature among cancer subtypes. In this paper, we present a statistical approach that can capture both mean and variance structure in genetic data. We demonstrate the strength of our method in both synthetic data and in two cancer data sets. In particular, our method confirms the hypervariability of methylation level in cancer patients, and it detects clearer subgroup patterns in lung cancer data.