cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Sub-ps thermionic electron injection effects on exciton-formation dynamics at a van der Waals semiconductor/metal interface
Creators: name: Keller, Kilian R.
name: Rojas-Aedo, Ricardo
name: Zhang, Huiqin
name: Schweizer, Pirmin
name: Allerbeck, Jonas
name: Brida, Daniele
name: Jariwala, Deep
name: Maccaferri, Nicolò
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Inorganic van der Waals bonded semiconductors like transition metal dichalcogenides are subject of intense research due to their electronic and optical properties which are promising for next-generation optoelectronic devices. In this context, understanding the ultrafast carrier dynamics, as well as charge and energy transfer at the interface between metals and semiconductors is crucial and yet quite unexplored. Here, we present an experimental study on how thermally induced ultrafast charge carrier injection affects the exciton formation dynamics in bulk WS2 by employing a pump-push-probe scheme, where a pump pulse induces thermionic injection of electrons from the gold substrate into the conduction band of the semiconductor, and another delayed push pulse excites direct transitions in the WS2. The transient response shows different dynamics on the sub-ps timescale by varying the delay between pump and push pulses or by changing the pump fluence, thus disclosing the important role of ultrafast hot electron injection on the exciton formation dynamics. Our findings might have potential impact on research fields that target the integration of ultrafast optics at the boundary of photonics and electronics, as well as in optically-driven CMOS and quantum technologies.
Temporal Analysis of Hepatocyte Differentiation by Small Hepatocyte-Like Progenitor Cells during Liver Regeneration in Retrorsine-Exposed Rats
Creators: name: Gordon, Gavin J.
name: Coleman, William B.
name: Grisham, Joe W.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2000

description: Liver regeneration after two-thirds surgical partial hepatectomy (PH) in rats treated with the pyrrolizidine alkaloid retrorsine is accomplished through the activation, expansion, and differentiation of a population of small hepatocyte-like progenitor cells (SHPCs). We have examined expression of the major liver-enriched transcription factors, cytochrome P450 (CYP) enzymes, and other markers of hepatocytic differentiation in SHPCs during the protracted period of liver regeneration after PH in retrorsine-exposed rats. Early-appearing SHPCs (at 3–7 days after PH) express mRNAs for all of the major liver-enriched transcription factors at varying levels compared to fully differentiated hepatocytes. In addition, SHPCs lack (or have significantly reduced) expression of mRNA for hepatocyte markers tyrosine aminotransferase and α-1 antitrypsin, but their expression levels of mRNA and/or protein for WT1 and α-fetoprotein (AFP) are increased. With the exception of AFP expression, SHPCs resembled fully differentiated hepatocytes by 14 days after PH. Expression of AFP was maintained by most SHPCs through 14 days after PH, gradually declined through 23 days after PH, and was essentially absent from SHPC progeny by 30 days after PH. Furthermore, early appearing SHPCs lack (or have reduced expression) of hepatic CYP proteins known to be induced in rat livers after retrorsine exposure. The resistance of SHPCs to the mitoinhibitory effects of retrorsine may be directly related to a lack of CYP enzymes required to metabolize retrorsine to its toxic derivatives. These results suggest that SHPCs represent a unique parenchymal (less differentiated) progenitor cell population of adult rodent liver that is phenotypically distinct from fully differentiated hepatocytes, biliary epithelial cells, and (ductular) oval cells.
$C^*$-extreme points of entanglement breaking maps
Creators: name: Bhat, B. V. Rajarama
name: Devendra, Repana
name: Mallick, Nirupama
name: Sumesh, K.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Operator Algebras (math.OA)
subject: Functional Analysis (math.FA)
subject: Quantum Physics (quant-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: In this paper we study the $C^*$-convex set of unital entanglement breaking (EB-)maps on matrix algebras. General properties and an abstract characterization of $C^*$-extreme points are discussed. By establishing a Radon-Nikodym type theorem for a class of EB-maps we give a complete description of the $C^*$-extreme points. It is shown that a unital EB-map $Φ:M_{d_1}\to M_{d_2}$ is $C^*$-extreme if and only if it has Choi-rank equal to $d_2$. Finally, as a direct consequence of the Holevo form of EB-maps, we derive a noncommutative analogue of the Krein-Milman theorem for $C^*$-convexity of the set of unital EB-maps.
Exceptional dynamics of interacting spin liquids
Creators: name: Yang, Kang
name: Varjas, Daniel
name: Bergholtz, Emil J.
name: Morampudi, Sid
name: Wilczek, Frank
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show that interactions in quantum spin liquids can result in non-Hermitian phenomenology that differs qualitatively from mean-field expectations. We demonstrate this in two prominent cases through the effects of phonons and disorder on a Kitaev honeycomb model. Using analytic and numerical calculations, we show the generic appearance of exceptional points and rings depending on the symmetry of the system. Their existence is reflected in dynamical observables including the dynamic structure function measured in neutron scattering. The results point to new phenomenological features in realizable spin liquids that must be incorporated into the analysis of experimental data and also indicate that spin liquids could be generically stable to wider classes of perturbations.
description: 6+10 pages, 3+4 figure, MIT-CTP/5402
Adult-Derived Stem Cells from the Liver Become Myocytes in the Heart in Vivo
Creators: name: Coleman, William B.
name: Malouf, Nadia N.
name: Anderson, Page A.W.
name: Grisham, Joe W.
name: Lininger, Ruth A.
name: Sproul, Matthew
name: Madden, Victoria J.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2001

description: Recent evidence suggests that adult-derived stem cells, like their embryonic counterparts, are pluripotent. These simple, undifferentiated and uncommitted cells are able to respond to signals from their host tissue microenvironment and differentiate, producing progeny that display a phenotype characteristic of the mature cells of that tissue. We used a clonal stem cell line (termed WB-F344) that was derived from an adult male rat liver to investigate the possibility that uncommitted stem cells from a nonmyogenic tissue source would respond to the tissue microenvironment of the heart in vivo and differentiate into cardiac myocytes. Male WB-F344 cells that carry the Escherichia coli β-galactosidase gene were identified in the left ventricular myocardium of adult female nude mice 6 weeks after transplantation. We confirmed the presence of a rat Y-chromosome-specific repetitive DNA sequence exclusively in the β-galactosidase-positive myocytes by polymerase chain reaction and fluorescence in situ hybridization. Immunohistochemistry, using a cardiac troponin T-specific monoclonal antibody, and ultrastructural analysis confirmed a cardiac myocyte phenotype of the stem cell-derived myocytes. The β-galactosidase-positive myocytes ranged from <20 μm to 110 μm in length. The longer of these cells contained well-organized sarcomeres and myofibrils, and formed intercalated disks and gap junctions with endogenous (host-derived) myocytes, suggesting that WB-F344-derived myocytes participate in the function of the cardiac syncytium. These results demonstrate that adult liver-derived stem cells respond to the tissue microenvironment of the adult heart in vivo and differentiate into mature cardiac myocytes.
Biographical Notes on Captain Sineus Edwards Hedges
Creators: name: Springs Historical Society
Publisher: name: Unknown
Year: 0
Subjects: East Hampton
Springs
Edwards Family
Ship captains
Biography

description: These are handwritten biographical notes on Captain Sineus M. Edwards Hedges, Captain of the Sloop Florian.
description: This material was lent to the Long Island Collection by the Springs Historical Society Library for digitization purposes.
Damped reaction field method and the accelerated convergence of the real space Ewald summation
Creators: name: Elvira, Victor H.
name: MacDowell, Luis G.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: In this paper we study a general theoretical framework which allows to approximate the real space Ewald sum by means of effective force shifted screened potentials, together with a self term. Using this strategy it is possible to generalize the reaction field method, as a means to approximate the real space Ewald sum. We show that this method exhibits faster convergence of the Coulomb energy than several schemes proposed recently in the literature while enjoying a much more sound and clear electrostatic significance. In terms of the damping parameter of the screened potential, we are able to identify two clearly distinct regimes of convergence. Firstly, a reaction field regime corresponding to the limit of small screening, where effective pair potentials converge faster than the Ewald sum. Secondly, an Ewald regime, where the plain real space Ewald sum converges faster. Tuning the screening parameter for optimal convergence occurs essentially at the crossover. The implication is that effective pair potentials are an alternative to the Ewald sum only in those cases where optimization of the convergence error is not possible.
description: 30 pages, 13 figures. Updated
Analysis of rDNA reveals a high genetic diversity of Halophila major in the Wallacea region
Creators: name: Nguyen, Xuan-Vy
name: Nguyen-Nhat, Nhu-Thuy
name: Nguyen, Xuan-Thuy
name: Dao, Viet-Ha
name: M. Liao, Lawrence
name: Papenbrock, Jutta
Publisher: name: San Francisco, California, US : PLOS
Year: 2021
Subjects: subject: DNA, Ribosomal
subject: Genetic Variation
subject: Genetics, Population
subject: Hydrocharitaceae
subject: Phylogeny
subject: Dewey Decimal Classification::500 | Naturwissenschaften
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: The genus Halophila shows the highest species diversity within the seagrass genera. Southeast Asian countries where several boundary lines exist were considered as the origin of seagrasses. We hypothesize that the boundary lines, such as Wallace’s and Lydekker’s Lines, may act as marine geographic barriers to the population structure of Halophila major. Seagrass samples were collected at three islands in Vietnamese waters and analyzed by the molecular maker ITS. These sequences were compared with published ITS sequences from seagrasses collected in the whole region of interest. In this study, we reveal the haplotype and nucleotide diversity, linking population genetics, phylogeography, phylogenetics and estimation of relative divergence times of H. major and other members of the Halophila genus. The morphological characters show variation. The results of the ITS marker analysis reveal smaller groups of H. major from Myanmar, Shoalwater Bay (Australia) and Okinawa (Japan) with high supporting values. The remaining groups including Sri Lanka, Viet Nam, the Philippines, Thailand, Malaysia, Indonesia, Two Peoples Bay (Australia) and Tokushima (Japan) showed low supporting values. The Wallacea region shows the highest haplotype and also nucleotide diversity. Non-significant differences were found among regions, but significant differences were presented among populations. The relative divergence times between some members of section Halophila were estimated 2.15–6.64 Mya.
D5.3 Integrative energy dispatching optimisation
Creators: name: Jelić, Marko
name: Esnaola-Gonzalez, Iker
Publisher: name: Zenodo
Year: 2021

description: In summary, this document provides a technical overview of the optimization models that will be used within the corresponding service, as a part of the greater selection of analytical services that are to be deployed within WP5 of the REACT project. The document analyzes different approaches to modelling and optimizing individual user’s energy systems in relation to the deployment plan of the REACT project before discussing how different analytical services could work together to facilitate this process. Following that, and specifically focusing on the execution of the optimization procedure, different operating modes and their corresponding models are introduced first by specifying the high-level goal they are intending to achieve, followed by detailed descriptions of their implementation and a set of examples of the developed models running in various scenarios. Furthermore, since the choice of operating modes provides an additional level of flexibility to the REACT solution, a methodology is proposed to describe how a high-level grid-related optimization could be utilized to provide benefits both for the power system as well as energy end users. Finally, the document ends with a brief overview of how the optimization service is intended to be deployed within the REACT cloud platform.
Adult-Derived Liver Stem Cells Acquire a Cardiomyocyte Structural and Functional Phenotype ex Vivo
Creators: name: Coleman, William B.
name: Muller-Borer, Barbara J.
name: Cascio, Wayne E.
name: Esch, Gwyn L.
name: Snowwaert, John N.
name: Grisham, Joe W.
name: Malouf, Nadia N.
name: Bagnell, C. Robert
name: Frye, James R.
name: Anderson, Page A.W.
name: Brackham, Joe A.
name: Desai, Niyati
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2004

description: We examined the differentiation potential of an adult liver stem cell line (WB F344) in a cardiac microenvironment, ex vivo. WB F344 cells were established from a single cloned nonparenchymal epithelial cell isolated from a normal male adult rat liver. Genetically modified, WB F344 cells that express β-galactosidase and green fluorescent protein or only β-galactosidase were co-cultured with dissociated rat or mouse neonatal cardiac cells. After 4 to 14 days, WB F344-derived cardiomyocytes expressed cardiac-specific proteins and exhibited myofibrils, sarcomeres, and a nascent sarcoplasmic reticulum. Further, rhythmically beating WB F344-derived cardiomyocytes displayed calcium transients. Fluorescent recovery after photobleaching demonstrated that WB F344-derived cardiomyocytes were coupled with adjacent neonatal cardiomyocytes and other WB F344-derived cardiomyocytes. Fluorescence in situ hybridization experiments suggested that fusion between WB F344 cells and neonatal mouse cardiomyocytes did not take place. Collectively, these results support the conclusion that these adult-derived liver stem cells respond to signals generated in a cardiac microenvironment ex vivo acquiring a cardiomyocyte phenotype and function. The identification ex vivo of microenvironmental signals that appear to cross germ layer and species specificities should prove valuable in understanding the molecular basis of adult stem cell differentiation and phenotypic plasticity.
BOSHLANG'ICH SINF O'QUVCHI QIZLARIDA KOLLABORATIV KO'NIKMALARNI SHAKLLANTIRISHNING XORIJIY TENDENSIYALARI
Creators: name: Jo'rayeva, Shahlo
Publisher: name: Zenodo
Year: 2023

description: Boshlang'ich sinf o'quvchi qizlarida kollaborativ ko'nikmalarni shakllantirishda masalaga komparativ(qiyosiy) yondoshish muhim ahamiyat kasb etmoqda. Bu yondashuv boshlang'ich sinflardagi tarbiya mazmunini boyitishda ulkan ahamiyatga ega. Xususan, mustaqil fikrlovchi, mas'uliyatni o'z zimmasiga olishga qodir o'quvchi-qizlar kompetensiyalarini shakllantirish muammosi hozirgi murakkab globallashuv sharoitida ayniqsa, dolzarb zaruratdir. Ushbu zaruratdan kelib chiqib, AQSHda eng mashhur "Ota-onalar" (Parents.com) saytida o'quvchi qizlar tarbiyasi masalasiga doir kontent(ma'lumot) tadqiq qilindi[1].
Soundiation: A multi-functional GUI-based software in evaluation of the acoustophoresis by the acoustic radiation force and torque on arbitrary axisymmetric objects
Creators: name: Tang, Tianquan
name: Huang, Lixi
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Applied Physics (physics.app-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Acoustic radiation force and torque arising from wave scattering are commonly used to manipulate micro-objects without contact. We applied the partial wave expansion series and the conformal transformation approach to estimate the radiation force and torque exerted on an axisymmetric particle. Meanwhile, translational and rotational transformations are required to keep the coordinate system consistent [1]. Although these theoretical derivations have been well established, coding the required systems, including generation of the wave function, implementation of the transformations, calculations between modules, etc., is non-trivial and time-consuming. Here, a new open-source, MATLAB-based software, called Soundiation, is provided to address the radiation force and torque while supporting the dynamic prediction of non-spherical particles. The implementation is basically generic, and its applicability is demonstrated through the validation of numerical methods. Furthermore, a graphical user interface is provided so that it can be used and extended easily.
description: 22 pages, 6 figures
Ascending Cadence Gestures, A New Historical Survey, Part 4a1: 1780– 1815
Creators: name: Neumeyer, David
Publisher: name: The University of Texas at Austin
Year: 2022
Subjects: music theory
music history

description: This belongs to a multi-part essay series gathering compositions with ascending lines and upper-register cadence gestures in European and European- influenced music. Part 4 covers the period 1780–1860; this section is 1780–1815. Composers include, among others, Beethoven, Doche, Hummel, Mozart, Paisiello, Pecháček, J. A. P. Schulz, and Sterkel. Organ music compiled by Kaspar Ett concludes.
Ascending Cadence Gestures, A New Historical Survey, Part 4b3: Polkas, A Second Supplement
Creators: name: Neumeyer, David
Publisher: name: The University of Texas at Austin
Year: 2022
Subjects: music theory
music history

description: This supplement has additional polkas from the 1840s and 1850s. Composers include, among others, Charles d’Albert, János Gungl, Charles Lenschow, Hans Christian Lumbye, and Johann Strauss, jr. An appendix is a list of all polkas discussed in this and previous essays,
Spin Orbit Coupling in Periodically Driven Optical Lattices
Creators: name: Struck, Julian
name: Simonet, Juliette
name: Sengstock, Klaus
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We propose a method for the emulation of artificial spin orbit coupling in a system of ultracold, neutral atoms trapped in a tight-binding lattice. This scheme does not involve near-resonant laser fields, avoiding the heating processes connected to the spontaneous emission of photons. In our case, the necessary spin dependent tunnel matrix elements are generated by a rapid, spin dependent, periodic force, which can be described in the framework of an effective, time averaged Hamiltonian. An additional radio frequency coupling between the spin states leads to a mixing of the spin bands.
description: Minor text revisions and additional references
Group A Streptococcus Transcriptome Dynamics during Growth in Human Blood Reveals Bacterial Adaptive and Survival Strategies
Creators: name: Barry, William T.
name: Gowen, Brian B.
name: Graham, Morag R.
name: Johnson, Claire R.
name: Wright, Fred A.
name: Porcella, Stephen F.
name: Virtaneva, Kimmo
name: Musser, James M.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2005

description: The molecular basis for bacterial responses to host signals during natural infections is poorly understood. The gram-positive bacterial pathogen group A Streptococcus (GAS) causes human mucosal, skin, and life-threatening systemic infections. During the transition from a throat or skin infection to an invasive infection, GAS must adapt to changing environments and host factors. To better understand how GAS adapts, we used transcript profiling and functional analysis to investigate the transcriptome of a wild-type serotype M1 GAS strain in human blood. Global changes in GAS gene expression occur rapidly in response to human blood exposure. Increased transcription was observed for many genes that likely enhance bacterial survival, including those encoding superantigens and host-evasion proteins regulated by a multiple gene activator called Mga. GAS also coordinately expressed genes involved in proteolysis, transport, and catabolism of oligopeptides to obtain amino acids in this protein-rich host environment. Comparison of the transcriptome of the wild-type strain to that of an isogenic deletion mutant (ΔcovR) mutated in the two-component regulatory system designated CovR-CovS reinforced the hypothesis that CovR-CovS has an important role linking key biosynthetic, catabolic, and virulence functions during transcriptome restructuring. Taken together, the data provide crucial insights into strategies used by pathogenic bacteria for thwarting host defenses and surviving in human blood.
The "Transnistria Republic" and its illegal arms export - a major security risk
Creators: name: Radulescu, Bogdan-George
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 440804
subject: Defence studies
classificationCode: 440808
subject: International relations
classificationCode: 480306
subject: International criminal law

description: As of 1996 Transnistria has been producing arms and ammunition which have been illegally exported to Kosovo, Chechnya, Abkhazia and the Arab states. In 2003 the co-rapporteurs of the Council of Europe Parliamentary Assembly, Jossette Durrieu and Lauri Vahtre emphasized the threat represented by arms trafficking in the Transnistrian region.
Naturally large tensor-to-scalar ratio in inflation
Creators: name: Liu, Guo-Chin
name: Ng, Kin-Wang
name: Wang, I-Chin
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Recently, BICEP2 measurements of the cosmic microwave background (CMB) $B$-mode polarization at degree angular scales has indicated the presence of tensor modes with a high tensor-to-scalar ratio of $r=0.2$ when assuming nearly scale-invariant tensor and scalar spectra, although the signal may be contaminated by dust emission as implied by the recent {\em Planck} polarization data. This result is in conflict with the {\em Planck} best-fit Lambda Cold Dark Model with $r<0.11$. Due to the fact that inflaton has to be interacting with other fields so as to convert its potential energy into radiation to reheat the Universe, the interacting inflaton may result in a suppression of the scalar spectrum at large scales. This suppression has been used to explain the observed low quadrupole in the CMB anisotropy. In this paper, we show that a combination of the tensor modes measured by BICEP2 and the large-scale suppressed scalar modes contributes to the CMB anisotropy in such a way that the resultant CMB anisotropy and polarization power spectra are consistent with both {\em Planck} and BICEP2 data. We also project our findings to cases in which $r$ may become reduced in future CMB polarization measurements.
description: 6 pages, 3 figures
Autoantibodies in the Autoimmune Disease Pemphigus Foliaceus Induce Blistering via p38 Mitogen-Activated Protein Kinase-Dependent Signaling in the Skin
Creators: name: Chua, Michael
name: Liu, Zhi
name: Rubenstein, David S.
name: Berkowitz, Paula
name: Diaz, Luis A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2008

description: Pemphigus foliaceus (PF) is a human autoimmune blistering disease in which a humoral immune response targeting the skin results in a loss of keratinocyte cell-cell adhesion in the superficial layers of the epidermal epithelium. In PF, desmoglein-1-specific autoantibodies induce blistering. Evidence is beginning to accumulate that activation of signaling may have an important role in the ability of pathogenic pemphigus IgGs to induce blistering and that both p38 mitogen-activated protein kinase (MAPK) and heat shock protein (HSP) 27 are part of this signaling pathway. This study was undertaken to investigate the ability of PF IgGs to activate signaling as well as the contribution of this signaling pathway to blister induction in an in vivo model of PF. Phosphorylation of both p38 MAPK and HSP25, the murine HSP27 homolog, was observed in the skin of PF IgG-treated mice. Furthermore, inhibition of p38 MAPK blocked the ability of PF IgGs to induce blistering in vivo. These results indicate that PF IgG-induced blistering is dependent on activation of p38 MAPK in the target keratinocyte. Rather than influencing the immune system, limiting the autoantibody-induced intracellular signaling response that leads to target end-organ damage may be a more viable therapeutic strategy for the treatment of autoimmune diseases. Inhibition of p38 MAPK may be an effective strategy for the treatment of PF.
Prospects for joint gravitational-wave and electromagnetic observations of neutron-star--black-hole coalescing binaries
Creators: name: Pannarale, Francesco
name: Ohme, Frank
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Coalescing neutron-star-black-hole (NS-BH) binaries are a promising source of gravitational-wave (GW) signals detectable with large-scale laser interferometers such as Advanced LIGO and Virgo. They are also one of the main short gamma-ray burst (SGRB) progenitor candidates. If the BH tidally disrupts its companion, an SGRB may be ignited when a sufficiently massive accretion disk forms around the remnant BH. Detecting an NS-BH coalescence both in the GW and electromagnetic (EM) spectrum offers a wealth of information about the nature of the source. How much can actually be inferred from a joint detection is unclear, however, as a mass/spin degeneracy may reduce the GW measurement accuracy. To shed light on this problem and on the potential of joint EM+GW observations, we here combine recent semi-analytical predictions for the remnant disk mass with estimates of the parameter-space portion that is selected by a GW detection. We identify cases in which an SGRB ignition is supported, others in which it can be excluded, and finally others in which the outcome depends on the chosen model for the currently unknown NS equation of state. We pinpoint a range of systems that would allow us to place lower bounds on the equation of state stiffness if both the GW emission and its EM counterpart are observed. The methods we develop can broaden the scope of existing GW detection and parameter-estimation algorithms and could allow us to disregard about half of the templates in an NS-BH search following an SGRB trigger, increasing its speed and sensitivity.
description: 5 pages, 3 figures; matches published version
The Role of Vascular Endothelial Growth Factor-Induced Activation of NADPH Oxidase in Choroidal Endothelial Cells and Choroidal Neovascularization
Creators: name: Budd, Steve
name: Monaghan-Benson, Elizabeth
name: Hartnett, M. Elizabeth
name: Parker, Augustus
name: Ahmad, Faisal
name: Byfield, Grace
name: Vendrov, Aleksandr E.
name: Burridge, Keith
name: Madamanchi, Nageswara
name: Hartmann, John
name: Huang, Wei
name: Runge, Marschall
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: Rac1, a subunit of NADPH oxidase, plays an important role in directed endothelial cell motility. We reported previously that Rac1 activation was necessary for choroidal endothelial cell migration across the retinal pigment epithelium, a critical step in the development of vision-threatening neovascular age-related macular degeneration. Here we explored the roles of Rac1 and NADPH oxidase activation in response to vascular endothelial growth factor treatment in vitro and in a model of laser-induced choroidal neovascularization. We found that vascular endothelial growth factor induced the activation of Rac1 and of NADPH oxidase in cultured human choroidal endothelial cells. Further, vascular endothelial growth factor led to heightened generation of reactive oxygen species from cultured human choroidal endothelial cells, which was prevented by the NADPH oxidase inhibitors, apocynin and diphenyleneiodonium, or the antioxidant, N-acetyl-l-cysteine. In a model of laser-induced injury, inhibition of NADPH oxidase with apocynin significantly reduced reactive oxygen species levels as measured by dihydroethidium fluorescence and the volume of laser-induced choroidal neovascularization. Mice lacking functional p47phox, a subunit of NADPH oxidase, had reduced dihydroethidium fluorescence and choroidal neovascularization compared with wild-type controls. Taken together, these results indicate that vascular endothelial growth factor activates Rac1 upstream from NADPH oxidase in human choroidal endothelial cells and increases generation of reactive oxygen species, contributing to choroidal neovascularization. These steps may contributed to the pathology of neovascular age-related macular degeneration.
Efficiently solving the harmonic model predictive control formulation
Creators: name: Krupa, Pablo
name: Limon, Daniel
name: Bemporad, Alberto
name: Alamo, Teodoro
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: Harmonic model predictive control (HMPC) is a model predictive control (MPC) formulation which displays several benefits over other MPC formulations, especially when using a small prediction horizon. These benefits, however, come at the expense of an optimization problem that is no longer the typical quadratic programming problem derived from most linear MPC formulations due to the inclusion of a particular class of second order cone constraints. This article presents a method for efficiently dealing with these constraints in operator splitting methods, leading to a computation time for solving HMPC in line with state of the art solvers for linear MPC. We show how to apply this result to the alternating direction method of multipliers algorithm, presenting a solver which we compare against other solvers from the literature, including solvers for other linear MPC formulations. The results show that the proposed solver, and by extension the HMPC formulation, is suitable for its implementation in embedded systems.
description: Accepted version of the article published in IEEE Transactions on Automatic Control (8 pages, 5 figures)
Exceptional AGN-driven turbulence inhibits star formation in the 3C 326N radio-galaxy
Creators: name: Guillard, P.
name: Boulanger, F.
name: Lehnert, M. D.
name: Forêts, G. Pineau des
name: Combes, F.
name: Falgarone, E.
name: Bernard-Salas, J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We detect bright [CII]158$μ$m line emission from the radio galaxy 3C 326N at z=0.09, which shows weak star formation ($SFR<0.07$M$_{\odot}$~yr$^{-1}$) despite having strong H$_2$ line emission and $2\times 10^9$M$_{\odot}$ of molecular gas. The [CII] line is twice as strong as the 0-0S(1) 17$μ$m H$_2$ line, and both lines are much in excess what is expected from UV heating. We combine infrared Spitzer and Herschel data with gas and dust modeling to infer the gas physical conditions. The [CII] line traces 30 to 50% of the molecular gas mass, which is warm (70
description: Accepted for publication in A&A. 15 pages, 8 figures. v2 with language editing and updated affiliations
Tuning the Hall response of a noncollinear antiferromagnet via spin-transfer torques and oscillating magnetic fields
Creators: name: Dasgupta, Sayak
name: Tretiakov, Oleg A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The kagome lattice antiferromagnets Mn$_3$X(= Sn, Ge) have a noncollinear 120$^\circ$ ordered ground state, which engenders a strong anomalous Hall response. It has been shown that this response is linked to the magnetic order and can be manipulated through it. Here we use a combination of strain and spin-transfer torques to control the magnetic order and hence switch deterministically between states of different chirality. Each of these chiral ground states has an anomalous Hall conductivity tensor in a different direction. Furthermore, we show that a similar manipulation of the strained sample can be obtained through oscillating magnetic fields, potentially opening a pathway to optical switching in these materials.
description: 5 pages of text, 5 figures, accepted in Physical Review Research as a Letter
Tumor Suppressor Scribble Regulates Assembly of Tight Junctions in the Intestinal Epithelium
Creators: name: Nusrat, Asma
name: Capaldo, Christopher T.
name: Beste, Kyle Den
name: Brennwald, Patrick
name: Humbert, Patrick O.
name: Young, Cheryl
name: Parkos, Charles A.
name: Ivanov, Andrei I.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: Formation of the epithelial barrier and apico-basal cell polarity represent two characteristics and mutually dependent features of differentiated epithelial monolayers. They are controlled by special adhesive structures, tight junctions (TJs), and polarity protein complexes that define the apical and the basolateral plasma membrane. The functional interplay between TJs and polarity complexes remains poorly understood. We investigated the role of Scribble, a basolateral polarity protein and known tumor suppressor, in regulating TJs in human intestinal epithelium. Scribble was enriched at TJs in T84 and SK-CO15 intestinal epithelial cell monolayers and sections of normal human colonic mucosa. siRNA-mediated knockdown of Scribble in SK-CO15 cells attenuated development of epithelial barrier and inhibited TJ reassembly independently of other basolateral polarity proteins Lgl-1 and Dlg-1. Scribble selectively co-imunoprecipitated with TJ protein ZO-1, and ZO-1 was important for Scribble recruitment to intercellular junctions and TJ reassembly. Lastly, Scribble was mislocalized from TJs and its expression down-regulated in interferon-γ-treated T84 cell monolayers and inflamed human intestinal mucosa in vivo. We conclude that Scribble is an important regulator of TJ functions and plasticity in the intestinal epithelium. Down-regulation of Scribble may mediate mucosal barrier breakdown during intestinal inflammation.
High D$_2$O/HDO ratio in the inner regions of the low-mass protostar NGC1333 IRAS2A
Creators: name: Coutens, Audrey
name: Jørgensen, Jes
name: Persson, Magnus
name: van Dishoeck, Ewine
name: Vastel, Charlotte
name: Taquet, Vianney
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Water plays a crucial role both in the interstellar medium and on Earth. To constrain its formation mechanisms and its evolution through the star formation process, the determination of the water deuterium fractionation ratios is particularly suitable. Previous studies derived HDO/H$_2$O ratios in the warm inner regions of low-mass protostars. We here report a detection of the D$_2$O 1$_{1,0}$-1$_{0,1}$ transition toward the low-mass protostar NGC1333 IRAS2A with the Plateau de Bure interferometer: this represents the first interferometric detection of D$_2$O - and only the second solar-type protostar for which this isotopologue is detected. Using the observations of the HDO 5$_{4,2}$-6$_{3,3}$ transition simultaneously detected and three other HDO lines previously observed, we show that the HDO line fluxes are well reproduced with a single excitation temperature of 218$\pm$21 K and a source size of $\sim$0.5 arcsec. The D$_2$O/HDO ratio is $\sim$(1.2$\pm$0.5) $\times$ 10$^{-2}$, while the use of previous H$_2^{18}$O observations give an HDO/H$_2$O ratio of $\sim$(1.7$\pm$0.8) $\times$ 10$^{-3}$, i.e. a factor of 7 lower than the D$_2$O/HDO ratio. These results contradict the predictions of current grain surface chemical models and indicate that either the surface deuteration processes are poorly understood or that both sublimation of grain mantles and water formation at high temperatures ($\gtrsim$230 K) take place in the inner regions of this source. In the second scenario, the thermal desorption of the grain mantles would explain the high D$_2$O/HDO ratio, while water formation at high temperature would explain significant extra production of H$_2$O leading to a decrease of the HDO/H$_2$O ratio.
description: Accepted for publication in ApJ Letters; 12 pages, 2 figures
Identifying subdominant collective effects in a large motorway network
Creators: name: Wang, Shanshan
name: Schreckenberg, Michael
name: Guhr, Thomas
Publisher: name: arXiv
Year: 2022
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Machine Learning (stat.ML)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: In a motorway network, correlations between parts or, more precisely, between the sections of (different) motorways, are of considerable interest. Knowledge of flows and velocities on individual motorways is not sufficient, rather, their correlations determine or reflect, respectively, the functionality of and the dynamics on the network. These correlations are time-dependent as the dynamics on the network is highly non-stationary. Apart from the conceptual importance, correlations are also indispensable to detect risks of failure in a traffic network. Here, we proceed with revealing a certain hierarchy of correlations in traffic networks that is due to the presence and to the extent of collectivity. In a previous study, we focused on the collectivity motion present in the entire traffic network, i.e. the collectivity of the system as a whole. Here, we manage to subtract this dominant effect from the data and identify the subdominant collectivities which affect different, large parts of the traffic network. To this end, we employ a spectral analysis of the correlation matrix for the whole system. We thereby extract information from the virtual network induced by the correlations and map it on the true topology, i.e. on the real motorway network. The uncovered subdominant collectivities provide a new characterization of the traffic network. We carry out our study for the large motorway network of North Rhine-Westphalia (NRW), Germany.
title: The behaviour of plate anchors in sand
Creators: name: Fadl, Mohamed Osman
Publisher: name: University of Glasgow
Year: 1981

description: The work, presented in this thesis describes an investigation into the behaviour of plate anchors embedded in dry sando Previous theoretical, laboratory and field scale experimental work is reported. From the review of this work apparent discrepancies were found between the results, and these were attributed to the fact that certain properties of the soil had not been considered in the previous theories. These parameters have been considered by the author in the development of an approximate method for the determination of anchor ultimate loads. Extensive experimental model testing programme was carried out in uniformly deposited sand using air activated sand spreader and raining devices. In a main series of tests anchors with diameters up to 75 mm were embedded at depth upon diameter ratios up to 25 in dense, medium dense and loose sand and subjected to vertical and inclined loading. Anchor loads and displacements and surface deformations were recorded. Photographic tests were carried out to determine the failure surfaces within the sand mass. From the analysis of the results it is shown that the behaviour of a plate anchor in sand is a function of a large number of factors. These factors include depth of embedment, anchor width, sand density, relative density and angle of internal friction. A finite element method of analysis was used for predicting the anchor load-displacement relationship and the distribution of stresses within the sand mass. The previous theories are shown to be of limited use when applied to the present test results and those of others. The approximate method developed is checked against the present experimental results and satisfactory agreement is obtained. The method is checked against previous model and field test results for shallow, deep, vertical and inclined cases and good agreement is found. Conclusions are drawn and it is suggested by the author that in the absence of an exact method the approximate method can be used to predict ultimate uplift capacity of plate anchors. For the sand used in this investigation design curves for calculation of anchor ultimate loads are presented. Suggestions are made for future experimental and analytical work.
Open Access: jeho príležitosti a výzvy 2019
Creators: name: Gondoľ, Ján
name: Ondrejčáková, Skarlet
name: Petrášová, Viera
name: Stožická, Zuzana
Publisher: name: Zenodo
Year: 2019
Subjects: OpenAIRE
workshop

description: Prezentácie z národného workshopu OpenAIRE.
Logistic management model for food loss reduction in East African food value networks
Creators: name: Kleineidam, Julia Maren
Publisher: name: Technische Universität Berlin
Year: 2023
Subjects: subject: 600 Technik, Medizin, angewandte Wissenschaften::650 Management, Öffentlichkeitsarbeit::658 Allgemeines Management
subject: food loss
subject: logistics
subject: East Africa
subject: management model
subject: loss reduction

description: This doctoral thesis addresses the reduction of food losses in logistical processes in East Africa. Structured in three scientific articles and a concluding concept development, a logistic management model is developed that supports local companies in identifying food losses in their own processes and in developing individual solutions for the reduction of these losses for their own case of operation.
description: Die vorliegende Dissertation befasst sich mit der Reduzierung von Lebensmittelverlusten in logistischen Prozessen in Ostafrika. Gegliedert in drei wissenschaftliche Artikel und eine abschließende Konzeptentwicklung wird ein logistisches Managementmodell entwickelt, das lokale Unternehmen dabei unterstützt, Lebensmittelverluste in den eigenen Prozessen zu identifizieren und individuelle Lösungen zur Reduzierung dieser Verluste für den eigenen Betriebsfall zu entwickeln.
Cuadro I y II suplementarios
Creators: name: Vazquez, Argelia
name: Villalobos, Aremis
name: Pérez Reyes;, María del Rocío
name: Barrientos-Gutierrez, Tonatiuh
name: Hubert, Celia
Publisher: name: figshare
Year: 2023
Subjects: Community child health

description: Cuadro suplementario 1. Características de la población de estudio, niñas y niños de 0 a 14 años, ENSANUT-2022, México
 Cuadro suplementario 2. Porcentaje de informantes que creen que el castigo físico es necesario para educar a una niña/o apropiadamente, ENSANUT-2022, México
Characterization of the four new transiting planets KOI-188b, KOI-195b, KOI-192b, and KOI-830b
Creators: name: Hebrard, G.
name: Santerne, A.
name: Montagnier, G.
name: Bruno, G.
name: Deleuil, M.
name: Havel, M.
name: Almenara, J. -M.
name: Damiani, C.
name: Barros, S. C. C.
name: Bonomo, A. S.
name: Bouchy, F.
name: Diaz, R. F.
name: Moutou, C.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The characterization of four new transiting extrasolar planets is presented here. KOI-188b and KOI-195b are bloated hot Saturns, with orbital periods of 3.8 and 3.2 days, and masses of 0.25 and 0.34 M_Jup. They are located in the low-mass range of known transiting, giant planets. KOI-192b has a similar mass (0.29 M_Jup) but a longer orbital period of 10.3 days. This places it in a domain where only a few planets are known. KOI-830b, finally, with a mass of 1.27 M_Jup and a period of 3.5 days, is a typical hot Jupiter. The four planets have radii of 0.98, 1.09, 1.2, and 1.08 R_Jup, respectively. We detected no significant eccentricity in any of the systems, while the accuracy of our data does not rule out possible moderate eccentricities. The four objects were first identified by the Kepler Team as promising candidates from the photometry of the Kepler satellite. We establish here their planetary nature thanks to the radial velocity follow-up we secured with the HARPS-N spectrograph at the Telescopio Nazionale Galileo. The combined analyses of the datasets allow us to fully characterize the four planetary systems. These new objects increase the number of well-characterized exoplanets for statistics, and provide new targets for individual follow-up studies. The pre-screening we performed with the SOPHIE spectrograph at the Observatoire de Haute-Provence as part of that study also allowed us to conclude that a fifth candidate, KOI-219.01, is not a planet but is instead a false positive.
description: 13 pages, 4 figures, 6 tables, final version accepted for publication in A&A
D.5.4 Advanced data analytics for optimal control
Creators: name: Md Nasimul Islam Maruf
name: Lluís Millet Biosca
name: Mittelsdorf, Marco
name: Werner, Daniel
name: Sherbaz, Ahmad Bilal
Publisher: name: Zenodo
Year: 2022

description: Report on the data analytics and optimal control methodologies to be applied for the optimisation module in REACT platform