cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Additional file 1 of Effects of topographic variability and forest attributes on fine-scale soil fertility in late-secondary succession of Atlantic Forest
Creators: name: Rodrigues, Alice Cristina
name: Villa, Pedro Manuel
name: Ferreira-Júnior, Walnir Gomes
name: Schaefer, Carlos Ernesto R. G.
name: Neri, Andreza Viana
Publisher: name: figshare
Year: 2021
Subjects: subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Plant Biology

description: Additional file 1: Fig. S1. Significance levels are based on Spearman correlation coefficients between soil parameters and principal components of PCA fertility from 200 plots within 2-ha plots in Atlantic Forest, Minas Gerais, Brazil. For analysis: elevation (elev), convexity (convex), slope, exchangeable acidity potential (H + Al), aluminum saturation index (m), pH (H2O), organic matter (OM); effective cation exchange capacity (t = CEC), sum of basic exchangeable cations (SB), base saturation index (V). Fig. S2. Dimensionality-reduction of soil physical properties based on Principal Component Analysis (PCA) along the topographical gradient. These results showed low variability between forest patches (Northeastern and Southeastern) based on coarse sand (Sand_c), fine sand (Sand_t), clay and silt. Fig. S3. Examples to test the most suitable distribution and link function using histogram and Q–Q considering the bests models with AIC
Random-matrix theory of Andreev reflection from a topological superconductor
Creators: name: Beenakker, C. W. J.
name: Dahlhaus, J. P.
name: Wimmer, M.
name: Akhmerov, A. R.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We calculate the probability distribution of the Andreev reflection eigenvalues R_n at the Fermi level in the circular ensemble of random-matrix theory. Without spin-rotation symmetry, the statistics of the electrical conductance G depends on the topological quantum number Q of the superconductor. We show that this dependence is nonperturbative in the number N of scattering channels, by proving that the p-th cumulant of G is independent of Q for p
description: 13 pages, 4 figures (published version)
Additional file 1 of Protective chromosome 1q32 haplotypes mitigate risk for age-related macular degeneration associated with the CFH-CFHR5 and ARMS2/HTRA1 loci
Creators: name: Pappas, Chris M.
name: Zouache, Moussa A.
name: Matthews, Stacie
name: Faust, Caitlin D.
name: Hageman, Jill L.
name: Williams, Brandi L.
name: Richards, Burt T.
name: Hageman, Gregory S.
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1. Supplementary tables and figures.
Strategisches Verhalten in Systemen mit Interaktions- und Kontaktwahl
Creators: name: Hartmann, Björn-Oliver
Publisher: name: Karlsruhe
Year: 2011
Subjects: Soziale Netzwerke
Peer-to-Peer Systeme
Interaktionswahl
Kontaktwahl
Kooperation

description: Verteilte Systeme haben große gesellschaftliche und wirtschaftliche Bedeutung. Bisher war unklar, ob sich ihre Teilnehmer effizient verhalten. Theoretische Analysen und verhaltensökonomische Experimente zeigen, dass kooperatives Verhalten entstehen kann. Die gebildeten Netzwerke sind fast effizient und können durch in dieser Arbeit entwickelte Strategien in ihrer Effizienz weiter erhöht werden.
Functional metagenomic screening for glycoside hydrolases
Creators: name: Mewis, Keith
Publisher: name: University of British Columbia
Year: 2017

description: Limitations on the cultivation of a majority of naturally occurring microbes have spurred the rise of culture-independent methods for the investigation of environmental microbial communities, a field known as metagenomics. This thesis addresses both functional and informatic approaches to metagenomics with the aim of improving our knowledge of carbohydrate degradation. A high throughput functional metagenomic screen was developed and applied to over 350,000 fosmid clones to search for glycoside hydrolases (GHs) in metagenomic libraries. Screening yielded 798 fosmid clones capable of hydrolyzing a model sugar compound, and the genes responsible were subcloned and biochemically characterized for pH and temperature stability, and substrate specificity. The combination of functional and in silico methods developed were used in a longitudinal study of the beaver (Castor canadensis) digestive tract, in order to gain insight into the sequential degradation of biomass. A linear model was used to identify enrichment of endo-acting versus exo-acting GH families at five locations throughout the digestive tract. The discovery of high numbers of GH43 family genes on functionally identified fosmids resulted in their combination with all other known GH43 genes in order to create subfamily classifications that provide finer resolution of enzyme activities. This classification system resulted in an improved ability to assign functional characteristics to enzymes identified through informatic studies. Of the 37 subfamilies created, only 22 contained a characterized enzyme. Fosmids identified earlier in this work harboured genes from four uncharacterized GH43 subfamilies, and future characterization efforts will further our understanding of the GH43 family. Altogether, the developed methods provide a framework for future studies of biomass degradation and improve the power of both functional and in silico metagenomics.
O'SMIRLAR VA OILA MUAMMOLARI
Creators: name: Datqayeva, Feruza
Publisher: name: Zenodo
Year: 2023

description: ushbuilmiy maqolada o'smiryoshdagi insonlarni boshqalar bilan munosabati, muammolari, tushunchalari va ularning fikrlashi, ulardagi muammolar, tavsiya va yechimlar haqida so'zyuritilgan.
Finite-Element-Formulierungen mit abgestimmten Approximationsräumen für die Modellierung piezoelektrischer Stab- und Schalenstrukturen
Creators: name: Legner, Dieter
Publisher: name: Karlsruhe
Year: 2011
Subjects: Finite-Elemente-Methode
piezoelektrisches Stabelement
piezoelektrisches Schalenelement
inkompatible Approximationsräume
Berechnungsfehler

description: Piezoelectric materials are increasingly employed throughout the field of sensor and actuator applications. The mechanical and electrical fields are coupled by the constitutive relations. This results in incompatibilities when using standard finite element formulations. As a consequence parasitic approximations and incorrect computation results occur. The present work proposes a concept to avoid these incompatible approximation spaces and the thus occurring computation errors.
Calantica jalbertii Baill.
Creators: name: Applequist, Wendy L.
name: Phillipson, Peter B.
name: Schatz, George E.
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Malpighiales
Salicaceae
Calantica
Calantica jalbertii

description: Calantica jalbertii (Tul.) Baill., as “ Jauberti ”, Bulletin Mensuel de la Société Linnéenne de Paris 1: 573 (1886). — Bivinia jalbertii Tul., as “ Jalberti ”, Annales des Sciences Naturelles; Botanique, sér. 4, 8: 78-79. 1857. No modern treatment of Calantica has followed Baillon (1886) in subsuming the single species of Bivinia into Calantica. Bivinia, which has long spiciform inflorescences and relatively numerous stamens, much more closely resembles some species of Homalium. It is distinguished from Homalium by its superior ovary and apetalous condition; the latter is undoubtedly derived. Interestingly, B. jalbertii is native both to western and southeastern Madagascar and to East Africa from Zimbabwe to Kenya.
description: Published as part of Applequist, Wendy L., Phillipson, Peter B. & Schatz, George E., 2014, A synoptic revision of the Malagasy endemic genus Calantica Jaub. ex Tul. (Salicaceae), pp. 83-102 in Adansonia (3) (3) 36 (1) on page 101, DOI: 10.5252/a2014n1a8, http://zenodo.org/record/5208455
description: {"references": ["BAILLON H. 1886. - Liste des plantes de Madagascar (suite de la page 568). Bulletin mensuel de la Societe linneenne de Paris 1: 572 - 576."]}
Neuartige oxidative Metaboliten von Zearalenon und alpha-Zearalanol: Strukturen und Reaktivitäten
Creators: name: Hildebrand, Andreas
Publisher: name: Karlsruhe
Year: 2012

description: Zearalenon (ZEN) ist ein Mykotoxin, das von Fusarien auf verschiedenen Getreidearten gebildet wird. Alpha-Zearalanol (alpha-ZAL) wird in einigen Staaten als Masthilfsmittel in der Rindermast eingesetzt, ist aber in der EU verboten. Bisher gibt es nur wenige Studien zum oxidativen Metabolismus dieser Verbindungen. In dieser Arbeit wurden in vitro-Untersuchungen zur Strukturaufklärung der oxidativen Metaboliten von ZEN und alpha-ZAL durchgeführt, sowie deren Reaktivitäten bestimmt.
Additional file 1 of Towards the use of a smartphone imaging-based tool for point-of-care detection of asymptomatic low-density malaria parasitaemia
Creators: name: Colbert, Ashlee J.
name: Co, Katrina
name: Lima-Cooper, Giselle
name: Lee, Dong Hoon
name: Clayton, Katherine N.
name: Wereley, Steven T.
name: John, Chandy C.
name: Linnes, Jacqueline C.
name: Kinzer-Ursem, Tamara L.
Publisher: name: figshare
Year: 2021
Subjects: subject: Space Science
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1: Figure S1. Real-time fluorescence and PD-LAMP measurements for each individual repeat. Figure S2. Positive ( +) (3 × 104) and negative (-) samples (molecular biology water) at blood concentrations of 0–10% (v/v). Figure S3. Specificity of malaria PD-LAMP in 0, 5 and 10% blood (v/v). Figure S4. Specificity of malaria PD-LAMP for 18 s rRNA in 10% blood. Figure S5. PD-LAMP performed on patient malaria samples. Figure S6. Dot Plot of patient samples from blinded study. Diffusion coefficients of patient samples with varying parasite densities using the 28 s primer set. Table S1. Nucleotide Sequences for LAMP Primers Targeting 28srRNA (Bio = biotin). Table S2. Nucleotide Sequences for LAMP Primers Targeting 18srRNA (Bio = biotin). Table S3. LAMP Master Mix Used for Amplification of Malaria DNA. Table S4. Oligonucleotide Sequences and qPCR Conditions for varATS Assays. Table S5. Asymptomatic Individual Sample Groups and Amplification Results. Figure S7. Representative Images of 400 nm streptavidin-coated particles in a LAMP sample. Figure S8. Chip Schematic. Layers of 188 µm COP are heat pressed together and hole punched. Double sided PSA is used to form a well for the sample. Figure S9. Image of Smartphone device and chip.
Methoden zur Lösungsverifikation und Einschließungsverfahren für gemischte Komplementaritätsprobleme
Creators: name: Hammer, Daniel
Publisher: name: Karlsruhe
Year: 2012
Subjects: gemischtes Komplementaritätsproblem
Lösungsverifikation
Einschließungsverfahren

description: In dieser Arbeit werden Methoden zur Lösungsverifikation sowie Einschließungsverfahren für gemischte Komplementaritätsprobleme präsentiert und Kriterien erarbeitet, welche eine erfolgreiche Lösungsverifikation oder die Konvergenz spezieller Einschließungsverfahren gegen eine Lösung garantieren.
Additional file 1 of Human iPSC-derived astrocytes transplanted into the mouse brain undergo morphological changes in response to amyloid-β plaques
Creators: name: Preman, Pranav
name: TCW, Julia
name: Calafate, Sara
name: Snellinx, An
name: Alfonso-Triguero, Maria
name: Corthout, Nikky
name: Munck, Sebastian
name: Thal, Dietmar Rudolf
name: Goate, Alison M
name: De Strooper, Bart
name: Arranz, Amaia M
Publisher: name: figshare
Year: 2021
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Neuroscience
subject: Physiology
subject: Evolutionary Biology
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Hematology

description: Additional file 1:
Chemoenzymatische Herstellung von Peptiden und Acylpeptiden, spektralphotometrische, chromatografische und MALDI ToF/MS Analysen der Produkte sowie Charakterisierung der tensidischen Eigenschaften
Creators: name: Andre, Markus
Publisher: name: Karlsruhe
Year: 2012
Subjects: Enzyme catalysis
Oligomerization
N-Acylation
Acylpeptides

description: Aim of the presented thesis was the chemoenzymatic synthesis of acylpeptides, which represent a group of novel biosurfactants with interesting properties for different industries, such as biomedical, laundry or cosmetic. This should be achieved through the coupling of an enzyme-catalyzed peptide oligomerization and a following N-acylation of the products towards acylpeptides.
Interactive Learning of Probabilistic Decision Making by Service Robots with Multiple Skill Domains
Creators: name: Schmidt-Rohr, Sven R.
Publisher: name: Karlsruhe
Year: 2012
Subjects: Autonomous service robots
Programming by Demonstration
Probabilistic decision making
Machine learning

description: This thesis makes a contribution to autonomous service robots, centered around two aspects. The first is modeling decision making in the face of incomplete information on top of diverse basic skills of a service robot. Second, based on such a model, it is investigated, how to transfer complex decision-making knowledge into the system. Interactive learning, naturally from both demonstrations of human teachers and in interaction with objects, yields decision-making models applicable by the robot.
Calantica mantinii Hort.
Creators: name: Applequist, Wendy L.
name: Phillipson, Peter B.
name: Schatz, George E.
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Malpighiales
Salicaceae
Calantica
Calantica mantinii

description: Calantica × mantinii Hort. Revue horticole [66]: 134 (1894). This name is listed as such in the International Plant Names Index, extracted from Index Kewensis. It has appeared to be simply an invalidly published horticultural name, which for that reason had never been addressed in prior revisions of the genus. It is rarely mentioned (usually as “mantini”) in entirely uncritical references such as computerized lists of plant names.However, the cited page reference (Bois 1894: 134) is largely devoted to a list of recently displayed new orchids, and the only similar name on that page is: “encore une série de Calanthes: (...) Mantini, à labelle rouge et à divisions supérieures blanches, striées de rose.” It appears that a name intended to describe a new hybrid of the orchid genus Calanthe R. Br. was accidentally entered into Index Kewensis as Calantica and the error was never corrected.
description: Published as part of Applequist, Wendy L., Phillipson, Peter B. & Schatz, George E., 2014, A synoptic revision of the Malagasy endemic genus Calantica Jaub. ex Tul. (Salicaceae), pp. 83-102 in Adansonia (3) (3) 36 (1) on page 101, DOI: 10.5252/a2014n1a8, http://zenodo.org/record/5208455
description: {"references": ["BOIS D. 1894. - Societe nationale d'horticulture de France. Seance du 22 fevrier 1894. Revue horticole 66: 134 - 135."]}
Newly uncovered novel properties of heparanase in the heart and pancreas
Creators: name: Zhang, Dahai
Publisher: name: University of British Columbia
Year: 2017

description: Heparanase, a protein with enzymatic and non-enzymatic properties, contributes towards disease progression and prevention. We have reported that high glucose (HG) stimulates heparanase secretion from endothelial cells (EC) to cleave cardiomyocyte heparan sulfate and release bound lipoprotein lipase (LPL) for transfer to the vascular lumen. We examined whether heparanase also has a function to release cardiomyocyte vascular endothelial growth factor (VEGF), and whether this growth factor influences cardiomyocyte fatty acid (FA) delivery. HG promoted both latent and active heparanase secretion into EC conditioned medium, an effective stimulus for releasing cardiomyocyte VEGF. Intriguingly, latent heparanase was more efficient than active heparanase in releasing VEGF from a cell surface pool. VEGF augmented cardiomyocyte intracellular calcium, AMPK phosphorylation and heparin-releasable LPL. Our data suggest that the heparanase-LPL-VEGF axis amplifies FA delivery, an adaptive mechanism that is geared to overcome the loss of glucose consumption by the diabetic heart. If prolonged, the resultant lipotoxicity could lead to cardiovascular disease in humans. Therefore, we globally overexpressed heparanase and evaluated whether excessive heparanase would exacerbate the development of diabetic cardiomyopathy. The transgenic mice (hep-tg) showed normal life span and fertility, with improved glucose homeostasis. Heparanase overexpression was associated with enhanced GSIS and hyperglucagonemia, in addition to changes in islet composition and structure. Strikingly, the pancreatic islet transcriptome was greatly altered in hep-tg mice with over 2000 genes differentially expressed. The upregulated genes were enriched for diverse functions including cell death regulation, extracellular matrix component synthesis, and pancreatic hormone production. The downregulated genes were tightly linked to regulation of the cell cycle. In response to multiple low-dose STZ, hep-tg animals developed less severe hyperglycemia compared to WT, an effect likely related to their remaining beta cells that were more functionally efficient. In animals given a single high dose of STZ, causing severe hyperglycemia related to the catastrophic loss of insulin, hep-tg mice continued to have significantly lower blood glucose. In these mice, protective pathways were uncovered for managing hyperglycemia and include augmentation of FGF21 and GLP-1. Overall, this thesis uncovers opportunities to utilize both enzymatic and non-enzymatic properties of heparanase in managing diabetes and its complications.
Investigation of coherent microscopic defects inside the tunneling barrier of a Josephson junction
Creators: name: Grabovskij, Grigorij Jur'evic
Publisher: name: Karlsruhe
Year: 2013
Subjects: Superconducting qubit
phase qubit
TLS
tunneling system
two-level system

description: In disordered solids, two-level atomic-tunneling systems are present in large quantity. Only recently, superconducting qubits opened a door for a detection and individual coherent manipulation of such microscopic quantum systems. We succeeded to tune the resonance frequencies of these systems by applying external strain on the qubit chip. Moreover, we observed and analyzed the interaction between two coupled tunneling systems.
Additional file 1 of Systemic inflammation alters the neuroinflammatory response: a prospective clinical trial in traumatic brain injury
Creators: name: Lassarén, Philipp
name: Lindblad, Caroline
name: Frostell, Arvid
name: Carpenter, Keri L. H.
name: Guilfoyle, Mathew R.
name: Hutchinson, Peter J. A.
name: Helmy, Adel
name: Thelin, Eric Peter
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Neuroscience
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. Title of data: Baseline data. Description of data: Columns for the first eight rows are for each patient (C, control; I, intervention); moreover, the first four rows have time along the horizontal axis. Columns for the final row are for each cytokine. Rows 1-3 display changes over time of white cell count (WCC), C-reactive protein (CRP) and temperature, with corresponding lines of best fit. Row 4 displays infection status of patients over time. Row 5 shows infection (VAP, ventilator-associated pneumonia; IAS intra-abdominal sepsis; CI, chest infection), severe adverse events (SAE), sex (M, male; F, female) and years of age for each patient. Row 6 shows Stockholm computed tomography (CT) score for each patient, coloured after whether a deterioration was observed during hospital stay. Row 7 shows injury severity score (ISS) for each patient. Row 8 shows fraction of missingness in each compartment and for each patient. Row 9 shows fraction of missing cytokines in each compartment. The chest infection was a result of mucous plugging resulting in a right lower lobe collapse, hence not fulfilling VAP criteria.
Multi-strange particle measurements in 7 TeV proton-proton and 2.76 TeV PbPb collisions with the ALICE experiment at the LHC
Creators: name: Chinellato, D. D.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The production of charged multi-strange particles is studied with the ALICE experiment at the CERN LHC. Measurements of the central rapidity yields of $Ξ^-$ and $Ω^-$ baryons, as well as their antiparticles, are presented as a function of transverse momentum ($p_\mathrm{t}$) for inelastic pp collisions at $\sqrt{s}=7$ TeV and compared to existing measurements performed at the same and/or at lower energies. The results are also compared to predictions from two different tunes of the PYTHIA event generator. We find that data significantly exceed the production rates from those models. Finally, we present the status of the multi-strange particle production studies in Pb-Pb at $\sqrt{s_{NN}}=2.76$ TeV performed as a function of collision centrality.
description: 4 pages, 3 figures. Submitted to the Proceedings of QM2011
On the reflection of magnon bound states
Creators: name: MacKay, Niall
name: Regelskis, Vidas
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate the reflection of two-particle bound states of a free open string in the light-cone AdS_5 x S^5 string sigma model, for large angular momentum J=J_56 and ending on a D7 brane which wraps the entire AdS_5 and a maximal S^3 of S^5. We use the superspace formalism to analyse fundamental and two-particle bound states in the cases of supersymmetry-preserving and broken-supersymmetry boundaries. We find the boundary S-matrices corresponding to bound states both in the bulk and on the boundary.
description: 35 pages, v2: few typos and ref corrected, accepted for publication in JHEP
Optimierung des Schmiermittelangebots zur Steigerung der Energieeffizienz von hydrodynamischen Gleitlagern mittels Körperschallanalyse
Creators: name: Nguyen, Huu Toan
Publisher: name: Karlsruhe
Year: 2013
Subjects: Gleitlager
Körperschall
Condition-Monitoring
Energieeffizienz

description: Derzeitige Ansätze zum sicheren Betrieb von Gleitlagern bestehen in der Überversorgung des Lagers mit Schmiermittel. Dies führt zu erheblichen Energieverlusten. Ziel dieser Arbeit ist es die durch Reibung verursachte Verlustleistung, zu reduzieren. Dazu wird ein Referenzprozess zur Steigerung der Energieeffizienz durch Reduzierung von ?parasitärer? Reibung mittels Optimierung des Schmiermitteldurchflusses am Beispiel von hydrodynamischen Gleitlagerungen vorgestellt.
Additional file 2 of Systemic inflammation alters the neuroinflammatory response: a prospective clinical trial in traumatic brain injury
Creators: name: Lassarén, Philipp
name: Lindblad, Caroline
name: Frostell, Arvid
name: Carpenter, Keri L. H.
name: Guilfoyle, Mathew R.
name: Hutchinson, Peter J. A.
name: Helmy, Adel
name: Thelin, Eric Peter
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Neuroscience
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 2. Title of data: Code. Description of data: Code for generating all figures and tables provided. Order of appearance: Figures 1-5, Tables 1-2, Additional file 6-7. Additional file 5 is generated by code for Figures 3-4.
Evolution of the spin parameter of accreting compact objects with non-Kerr quadrupole moment
Creators: name: Bambi, Cosimo
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: There is robust observational evidence supporting the existence of $5 - 20$ $M_\odot$ compact bodies in X-ray binary systems and of $10^5 - 10^9$ $M_\odot$ bodies at the center of many galaxies. All these objects are commonly interpreted as black holes, even is there is no direct evidence that they have an event horizon. A fundamental limit for a black hole in 4-dimensional general relativity is the Kerr bound $|a_*| \le 1$, where $a_*$ is the spin parameter. This is just the condition for the existence of the event horizon. The accretion process can spin a black hole up to $a_* \approx 0.998$ and some super-massive objects in galactic nuclei could be rapidly rotating black holes with spin parameter close to this limit. However, if these super-massive objects are not black holes, the Kerr bound does not hold and the accretion process can spin them up to $a_* > 1$. In this paper, I consider compact bodies with non-Kerr quadrupole moment. I study the evolution of the spin parameter due to accretion and I find its equilibrium value. Future experiments like the gravitational wave detector LISA will be able to test if the super-massive objects at the center of galaxies are the black holes predicted by general relativity. If they are not black holes, some of them may be super-spinning objects with $a_* > 1$.
description: 20 pages, 16 figures. v2: published version with a few typos corrected
Classical Stability of the Galileon
Creators: name: Endlich, Solomon
name: Wang, Junpu
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider the classical equations of motion for a single Galileon field with generic parameters in the presence of non-relativistic sources. We introduce the concept of absolute stability of a theory: if one can show that a field at a single point---like infinity for instance---in spacetime is stable, then stability of the field over the rest of spacetime is guaranteed for any positive energy source configuration. The Dvali-Gabadadze-Porrati (DGP) model is stable in this manner, and previous studies of spherically symmetric solutions suggest that certain classes of the single field Galileon (of which the DGP model is a subclass) may have this property as well. We find, however, that when general solutions are considered this is not the case. In fact, when considering generic solutions there are no choices of free parameters in the Galileon theory that will lead to absolute stability except the DGP choice. Our analysis indicates that the DGP model is an exceptional choice among the large class of possible single field Galileon theories. This implies that if general solutions (non-spherically symmetric) exist they may be unstable. Given astrophysical motivation for the Galileon, further investigation into these unstable solutions may prove fruitful.
description: 23 pages, 3 figures
Exploring Ultrastructural Changes in Cell Membranes
Creators: name: Avantika Srivastav1, Ithrineni Karthik2, Ankit Jaiswal3
Publisher: name: The Science world a Monthly e magazine
Year: 2024

description: The given content delves into the composition of cell membranes, emphasizing the roles of phospholipids, glycolipids, cholesterols, and proteins. It explores ultrastructural changes in response to injuries, such as apoptosis and glycosphingolipids' multifaceted functions. The detection and localization of cholesterol using filipin are discussed. The role of phospholipases, both intramembrane and exogenous, in modulating membrane integrity is highlighted, along with examples like snake venom phospholipase A2. Microbial lysins and bacterial phospholipases contribute to membrane damage. The article also covers endocytosis, exocytosis, cytoplasmic blebs formation, and acute cellular swelling, providing insights into cellular membrane dynamics
On the metric dimension of corona product graphs
Creators: name: Yero, I. G.
name: Kuziak, D.
name: Rodriguez-Velazquez, J. A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C12, 05C76, 05C90, 92E10

description: Given a set of vertices $S=\{v_1,v_2,...,v_k\}$ of a connected graph $G$, the metric representation of a vertex $v$ of $G$ with respect to $S$ is the vector $r(v|S)=(d(v,v_1),d(v,v_2),...,d(v,v_k))$, where $d(v,v_i)$, $i\in \{1,...,k\}$ denotes the distance between $v$ and $v_i$. $S$ is a resolving set for $G$ if for every pair of vertices $u,v$ of $G$, $r(u|S)\ne r(v|S)$. The metric dimension of $G$, $dim(G)$, is the minimum cardinality of any resolving set for $G$. Let $G$ and $H$ be two graphs of order $n_1$ and $n_2$, respectively. The corona product $G\odot H$ is defined as the graph obtained from $G$ and $H$ by taking one copy of $G$ and $n_1$ copies of $H$ and joining by an edge each vertex from the $i^{th}$-copy of $H$ with the $i^{th}$-vertex of $G$. For any integer $k\ge 2$, we define the graph $G\odot^k H$ recursively from $G\odot H$ as $G\odot^k H=(G\odot^{k-1} H)\odot H$. We give several results on the metric dimension of $G\odot^k H$. For instance, we show that given two connected graphs $G$ and $H$ of order $n_1\ge 2$ and $n_2\ge 2$, respectively, if the diameter of $H$ is at most two, then $dim(G\odot^k H)=n_1(n_2+1)^{k-1}dim(H)$. Moreover, if $n_2\ge 7$ and the diameter of $H$ is greater than five or $H$ is a cycle graph, then $dim(G\odot^k H)=n_1(n_2+1)^{k-1}dim(K_1\odot H).$
Compactons and semi-compactons in the extreme baby Skyrme model
Creators: name: Speight, J. M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The static baby Skyrme model is investigated in the extreme limit where the energy functional contains only the potential and Skyrme terms, but not the Dirichlet energy term. It is shown that the model with potential $V=\frac12(1+ϕ_3)^2$ possesses solutions with extremely unusual localization properties, which we call semi-compactons. These minimize energy in the degree 1 homotopy class, have support contained in a semi-infinite rectangular strip, and decay along the length of the strip as $x^{-\log x}$. By gluing together several semi-compactons, it is shown that every homotopy class has linearly stable solutions of arbitrarily high, but quantized, energy. For various other choices of potential, compactons are constructed with support in a closed disk, or in a closed annulus. In the latter case, one can construct higher winding compactons, and complicated superpositions in which several closed string-like compactons are nested within one another. The constructions make heavy use of the invariance of the model under area-preserving diffeomorphisms, and of a topological lower energy bound, both of which are established in a general geometric setting. All the solutions presented are classical, that is, they are (at least) twice continuously differentiable and satisfy the Euler-Lagrange equation of the model everywhere.
description: 19 pages, 2 figures. Minor changes: published version
REA em bibliotecas de ciências da saúde: uso, gerenciamento e disseminação
Creators: name: Araujo, Lyvia
name: Prudencio, Dayanne da Silva
Publisher: name: figshare
Year: 2022
Subjects: subject: Library and Information Studies
subject: FOS: Media and communications

description: A pesquisa apresenta como as bibliotecas da área da saúde produzem, gerenciam, armazenam e difundem o uso de REA em suas instituições. Os resultados apontam a existência de dúvidas sobre o formato de distribuição de REA por parte dos bibliotecários e a baixa quantidade de catálogos que os categoriza adequadamente. Conclui que há necessidade de compartilhamento de conhecimentos que auxiliem os bibliotecários no reconhecimento de REA. Recomenda-se a investigação das práticas utilizadas por bibliotecários em seu tratamento, para verificar a eficácia das iniciativas vigentes. Sugere boas práticas para a produção, tratamento, uso e disseminação de REA nas bibliotecas.
Zyto- und Genotoxizität von nano- und mikroskaligem Kupferoxid: Einfluss der Bioverfügbarkeit
Creators: name: Semisch, Annetta
Publisher: name: Karlsruhe
Year: 2013

description: Die zunehmende Verwendung von metallbasierten synthetisierten nano- und mikroskaligen Partikeln erhöht das Ausmaß einer Exposition von Arbeitnehmern und der Allgemeinbevölkerung. In dieser Arbeit wurden anhand von Zellkulturversuchen die Zyto- und Genotoxizität von nano- und mikroskaligem Kupferoxid sowie löslichem Kupferchlorid ermittelt, verglichen und ein Zusammenhang mit Unterschieden in der Bioverfügbarkeit und der intrazellulären Verteilung von Kupferionen untersucht.
Additional file 3 of Systemic inflammation alters the neuroinflammatory response: a prospective clinical trial in traumatic brain injury
Creators: name: Lassarén, Philipp
name: Lindblad, Caroline
name: Frostell, Arvid
name: Carpenter, Keri L. H.
name: Guilfoyle, Mathew R.
name: Hutchinson, Peter J. A.
name: Helmy, Adel
name: Thelin, Eric Peter
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Neuroscience
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 3. Title of data: Mixed models details. Description of data: Statistical details.
Distributed Localized Interference Avoidance for Dynamic Frequency Hopping ad hoc Networks
Creators: name: Koslowski, Sebastian
name: Elsner, Jens P.
name: Jondral, Friedrich K.
name: Couturier, Stefan
name: Keip, Cédric
name: Bettinger, Olaf
Publisher: name: Karlsruhe
Year: 2013

description: We present a cognitive spectrum access solution for FH-CDMA ad hoc networks. Building on a cluster-based split phase multi-channel MAC protocol, we propose a mechanism for local interference avoidance through distributed hopset adaptation. Its goal is to identify and substitute channels not suitable for reliable communication. Substitution rules replace channels by locally unused hopsets. This way, interference is mitigated while maintaining orthogonality between nodes’ hopsets. We evaluate the gains of the proposed method with a simplified system model.
Riemann hypothesis and Quantum Mechanics
Creators: name: Planat, Michel
name: Solé, Patrick
name: Omar, Sami
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: Number Theory (math.NT)
subject: Quantum Algebra (math.QA)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: In their 1995 paper, Jean-Benoît Bost and Alain Connes (BC) constructed a quantum dynamical system whose partition function is the Riemann zeta function $ζ(β)$, where $β$ is an inverse temperature. We formulate Riemann hypothesis (RH) as a property of the low temperature Kubo-Martin-Schwinger (KMS) states of this theory. More precisely, the expectation value of the BC phase operator can be written as $$ϕ_β(q)=N_{q-1}^{β-1} ψ_{β-1}(N_q), $$ where $N_q=\prod_{k=1}^qp_k$ is the primorial number of order $q$ and $ ψ_b $ a generalized Dedekind $ψ$ function depending on one real parameter $b$ as $$ ψ_b (q)=q \prod_{p \in \mathcal{P,}p \vert q}\frac{1-1/p^b}{1-1/p}.$$ Fix a large inverse temperature $β>2.$ The Riemann hypothesis is then shown to be equivalent to the inequality $$ N_q |ϕ_β(N_q)|ζ(β-1) >e^γ\log \log N_q, $$ for $q$ large enough. Under RH, extra formulas for high temperatures KMS states ($1.5< β<2$) are derived.
description: version to appear in J. Phys. A: Math. Theor
On strong coupling in nonrelativistic general covariant theory of gravity
Creators: name: Lin, Kai
name: Wang, Anzhong
name: Wu, Qiang
name: Zhu, Tao
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the strong coupling problem in the Horava-Melby-Thompson setup of the Horava-Lifshitz gravity with an arbitrary coupling constant $λ$, generalized recently by da Silva, where $λ$ describes the deviation of the theory in the infrared from general relativity that has $λ_{GR} = 1$. We find that a scalar field in the Minkowski background becomes strong coupling for processes with energy higher than $Λ_ω [\equiv (M_{pl}/c_1)^{3/2} M_{pl}|λ- 1|^{5/4}]$, where generically $c_1 \ll M_{pl}$. However, this problem can be cured by introducing a new energy scale $M_{*}$, so that $M_{*} < Λ_ω$, where $M_{*}$ denotes the suppression energy of high order derivative terms of the theory.
description: Some typos are corrected & new references added. revtex4, one figure. To appear in Physical Review D
Formation of fullerenes in H-containing Planetary Nebulae
Creators: name: Garcia-Hernandez, D. A.
name: Manchado, A.
name: Garcia-Lario, P.
name: Stanghellini, L.
name: Villaver, E.
name: Shaw, R. A.
name: Szczerba, R.
name: Perea-Calderon, J. V.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Chemical Physics (physics.chem-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: Hydrogen depleted environments are considered an essential requirement for the formation of fullerenes. The recent detection of C60 and C70 fullerenes in what was interpreted as the hydrogen-poor inner region of a post-final helium shell flash Planetary Nebula (PN) seemed to confirm this picture. Here, we present evidence that challenges the current paradigm regarding fullerene formation, showing that it can take place in circumstellar environments containing hydrogen. We report the simultaneous detection of Polycyclic Aromatic Hydrocarbons (PAHs) and fullerenes towards C-rich and H-containing PNe belonging to environments with very different chemical histories such as our own Galaxy and the Small Magellanic Cloud. We suggest that PAHs and fullerenes may be formed by the photochemical processing of hydrogenated amorphous carbon. These observations suggest that modifications may be needed to our current understanding of the chemistry of large organic molecules as well as the chemical processing in space.
description: accepted for publication in The Astrophysical Journal Letters (14 pages, 4 figures and 1 Table). Replaced version with slight changes in the abstract
Bifunctional oxygen reduction/evolution catalysts for rechargeable metal-air batteries and regenerative alkaline fuel cells
Creators: name: Hosseini-Benhangi, Pooya
Publisher: name: University of British Columbia
Year: 2017

description: The electrocatalysis of oxygen reduction and evolution reactions (ORR and OER, respectively) on the same catalyst surface is among the long-standing challenges in electrochemistry with paramount significance for a variety of electrochemical systems including regenerative fuel cells and rechargeable metal-air batteries. Non-precious group metals (non-PGMs) and their oxides, such as manganese oxides, are the alternative cost-effective solutions for the next generation of high-performance bifunctional oxygen catalyst materials. Here, initial stage electrocatalytic activity and long-term durability of four non-PGM oxides and their combinations, i.e. MnO₂, perovskites (LaCoO₃ and LaNiO₃) and fluorite-type oxide (Nd₃IrO₇), were investigated for ORR and OER in alkaline media. The combination of structurally diverse oxides revealed synergistic catalytic effect by improved bifunctional activity compared to the individual oxide components. Next, the novel role of alkali-metal ion insertion and the mechanism involved for performance promotion of oxide catalysts were investigated. Potassium insertion in the oxide structures enhanced both ORR and OER performances, e.g. 110 and 75 mV decrease in the OER (5 mAcm-²) and ORR (-2 mAcm-²) overpotentials (in absolute values) of MnO₂-LaCoO₃, respectively, during galvanostatic polarization tests. In addition, the stability of K⁺ activated catalysts was improved compared to unactivated samples. Further, a factorial design study has been performed to find an active nanostructured manganese oxide for both ORR and OER, synthesized via a surfactant-assisted anodic electrodeposition method. Two-hour-long galvanostatic polarization at 5 mAcm-² showed the lowest OER degradation rate of 5 mVh-¹ for the electrodeposited MnOx with 270 mV lower OER overpotential compared to the commercial γ-MnO₂ electrode. Lastly, the effect of carbon addition to the catalyst layer, e.g. Vulcan XC-72, carbon nanotubes and graphene-based materials, was examined on the ORR/OER bifunctional activity and durability of MnO₂ LaCoO₃. The highest ORR and OER mass activities of -6.7 and 15.5 Ag-¹ at 850 and 1650 mVRHE, respectively, were achieved for MnO₂-LaCoO₃-multi_walled_carbon_nanotube-graphene, outperforming a commercial Pt electrode. The factors affecting the durability of mixed-oxide catalysts were discussed, mainly attributing the performance degradation to Mn valence changes during ORR/OER. A wide range of surface analyses were employed to support the presented electrochemical results as well as the proposed mechanisms.
On the relation between quantum walks and zeta functions
Creators: name: Konno, Norio
name: Sato, Iwao
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: Combinatorics (math.CO)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We present an explicit formula for the characteristic polynomial of the transition matrix of the discrete-time quantum walk on a graph via the second weighted zeta function. As applications, we obtain new proofs for the results on spectra of the transition matrix and its positive support.
description: 9 pages, minor corrections, Quantum Information Processing (in press)
On the Relationship Between Complex Potentials and Strings of Projection Operators
Creators: name: Halliwell, J. J.
name: Yearsley, J. M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: It is of interest in a variety of contexts, and in particular in the arrival time problem, to consider the quantum state obtained through unitary evolution of an initial state regularly interspersed with periodic projections onto the positive $x$-axis (pulsed measurements). Echanobe, del Campo and Muga have given a compelling but heuristic argument that the state thus obtained is approximately equivalent to the state obtained by evolving in the presence of a certain complex potential of step-function form. In this paper, with the help of the path decomposition expansion of the associated propagators, we give a detailed derivation of this approximate equivalence. The propagator for the complex potential is known so the bulk of the derivation consists of an approximate evaluation of the propagator for the free particle interspersed with periodic position projections. This approximate equivalence may be used to show that to produce significant reflection, the projections must act at time spacing less than 1/E, where E is the energy scale of the initial state.
description: 29 pages, LaTex, 4 figures. Substantial revisions
Additional file 7 of Systemic inflammation alters the neuroinflammatory response: a prospective clinical trial in traumatic brain injury
Creators: name: Lassarén, Philipp
name: Lindblad, Caroline
name: Frostell, Arvid
name: Carpenter, Keri L. H.
name: Guilfoyle, Mathew R.
name: Hutchinson, Peter J. A.
name: Helmy, Adel
name: Thelin, Eric Peter
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Neuroscience
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 7. Title of data: Principal component analysis of all cytokines, with additional inflammatory variables. Description of data: Unlabelled arrows are loadings of cytokines. Labelled and dashed arrows are post-analysis projections of continuous inflammatory markers. Infection and non-infection shaded areas show confidence intervals of scores labelled as infection or non-infection.
Logarithmic Corrections to N=4 and N=8 Black Hole Entropy: A One Loop Test of Quantum Gravity
Creators: name: Banerjee, Shamik
name: Gupta, Rajesh Kumar
name: Mandal, Ipsita
name: Sen, Ashoke
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We compute logarithmic corrections to the entropy of supersymmetric extremal black holes in N=4 and N=8 supersymmetric string theories and find results in perfect agreement with the microscopic results. In particular these logarithmic corrections vanish for quarter BPS black holes in N=4 supersymmetric theories, but has a finite coefficient for 1/8 BPS black holes in the N=8 supersymmetric theory. On the macroscopic side these computations require evaluating the one loop determinant of massless fields around the near horizon geometry, and include, in particular, contributions from dynamical four dimensional gravitons propagating in the loop. Thus our analysis provides a test of one loop quantum gravity corrections to the black hole entropy, or equivalently of the AdS_2/CFT_1 correspondence. We also extend our analysis to N=2 supersymmetric STU model and make a prediction for the logarithmic correction to the black hole entropy in that theory.
description: LaTeX file, 66 pages; v2: STU model analysis and results modified
Desert bee traits across an urbanizing landscape: are size or life-history traits predictable?
Creators: name: Nikolaidis, Ourania
Publisher: name: No Publisher Supplied
Year: 2021

description: As the world becomes more urbanized, key abiotic factors in cities differ strongly compared to those in adjacent wildlands. This is especially important in desert cities, which are rapidly urbanizing and understudied when compared to cities adjacent to temperate forests. While a taxonomic understanding of how this shift in abiotic factors affects ecological communities is important, a trait-based approach may be more comprehensive and reveal potential mechanisms of environmental filtering. Bees are particularly vulnerable to the effects of urbanization and land use change. In this study, I assess body size and life-history traits of bee in Albuquerque, New Mexico and an adjacent wildland desert. I found that bees at urban sites had 12% larger wing-bud distances and 28% larger body weights when compared to wildland sites. Life-history traits also varied across urban and wildland sites, with urban sites having 25% more bee species with specialized diets and 41% more bee species which were solitary. Overall, the urban sites had a distinct trait signature when compared to wildland sites, but one which also did not match the findings of previous studies. These findings suggest that further research is needed to understand how the rate of urbanization affects ecological communities.