cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The identification of MAXI J1659-152 as a black hole candidate
Creators: name: Kalamkar, M.
name: Homan, J.
name: Altamirano, D.
name: van der Klis, M.
name: Casella, P.
name: Linares, M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report on the analysis of all 65 pointed Rossi X-ray Timing Explorer observations of the recently discovered soft X-ray transient MAXI J1659-152 (initially referred to as GRB 100925A). The source was studied in terms of its evolution through the hardness-intensity diagram (HID) as well as its X-ray variability properties. MAXI J1659-152 traced out an anti-clockwise loop in the HID, which is commonly seen in transient low-mass X-ray binaries. The variability properties of the source, in particular the detection of type-B and type-C low-frequency quasi-periodic oscillations, and the way they evolve along the HID track, indicate that MAXI J1659-152 is a black hole candidate. The spectral and variability properties of MAXI J1659-152 imply that the source was observed in the hard and soft intermediate states during the RXTE observations, with several transitions between these two states.
description: 6 pages, 4 figures, accepted for publication in ApJL
Stability of f(R) black holes
Creators: name: Myung, Yun Soo
name: Moon, Taeyoon
name: Son, Edwin J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate the stability of $f(R)$ (Schwarzschild) black hole obtained from the $f(R)$ gravity. It is difficult to carry out the perturbation analysis around the black hole because the linearized Einstein equation is fourth order in $f(R)$ gravity. In order to resolve this difficulty, we transform $f(R)$ gravity into the scalar-tensor theory by introducing two auxiliary scalars. In this case, the linearized curvature scalar becomes a scalaron, showing that all linearized equations are second order, which are the same equations for the massive Brans-Dicke theory. It turns out that the $f(R)$ black hole is stable against the external perturbations if the scalaron does not have a tachyonic mass.
description: 16 pages, no figures, version to appear in Physical Review D
Lucky Imaging survey for southern M dwarf binaries
Creators: name: Bergfors, C.
name: Brandner, W.
name: Janson, M.
name: Daemgen, S.
name: Geissler, K.
name: Henning, T.
name: Hippler, S.
name: Hormuth, F.
name: Joergens, V.
name: Köhler, R.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: While M dwarfs are the most abundant stars in the Milky Way, there is still large uncertainty about their basic physical properties (mass, luminosity, radius, etc.) as well as their formation environment. Precise knowledge of multiplicity characteristics and how they change in this transitional mass region, between Sun-like stars on the one side and very low mass stars and brown dwarfs on the other, provide constraints on low mass star and brown dwarf formation. In the largest M dwarf binary survey to date, we search for companions to active, and thus preferentially young, M dwarfs in the solar neighbourhood. We study their binary/multiple properties, such as the multiplicity frequency and distributions of mass ratio and separation, and identify short period visual binaries, for which orbital parameters and hence dynamical mass estimates can be derived in the near future. The observations are carried out in the SDSS i' and z' band using the Lucky Imaging camera AstraLux Sur at the ESO 3.5 m New Technology Telescope. In the first part of the survey, we observed 124 M dwarfs of integrated spectral types M0-M6 and identified 34 new and 17 previously known companions to 44 stars. We derived relative astrometry and component photometry for these systems. More than half of the binaries have separations smaller than 1 arcsec and would have been missed in a simply seeing-limited survey. Correcting our sample for selection effects yields a multiplicity fraction of 32+/-6% for 108 M dwarfs within 52 pc and with angular separations of 0.1-6.0 arcsec, corresponding to projected separation 3-180 AU at median distance 30 pc. Compared to early-type M dwarfs (M>0.3M_Sun), later type (and hence lower mass) M dwarf binaries appear to have closer separations, and more similar masses.
description: 18 pages, 9 figures. Minor corrections and changes. Revised to match accepted A&A version
Apoptosis in mesenchymal stromal cells activates an immunosuppressive secretome predicting clinical response in Crohn's disease.
Creators: name: Cheung, Tik Shing
name: Giacomini, Chiara
name: Cereda, Matteo
name: Avivar-Valderas, Alvaro
name: Capece, Daria
name: Bertolino, Giuliana Minani
name: delaRosa, Olga
name: Hicks, Ryan
name: Ciccocioppo, Rachele
name: Franzoso, Guido
name: Galleu, Antonio
name: Ciccarelli, Francesca D
name: Dazzi, Francesco
Publisher: name: The Francis Crick Institute
Year: 2023
Subjects: classificationCode: Gene Expression
subject: Gene Expression
classificationCode: Genetics & Genomics
subject: Genetics & Genomics
classificationCode: Genome Integrity & Repair
subject: Genome Integrity & Repair
classificationCode: Computational & Systems Biology
subject: Computational & Systems Biology

description: In vivo apoptosis of human mesenchymal stromal cells (MSCs) plays a critical role in delivering immunomodulation. Yet, caspase activity not only mediates the dying process but also death-independent functions that may shape the immunogenicity of apoptotic cells. Therefore, a better characterization of the immunological profile of apoptotic MSCs (ApoMSCs) could shed light on their mechanistic action and therapeutic applications. We analyzed the transcriptomes of MSCs undergoing apoptosis and identified several immunomodulatory factors and chemokines dependent on caspase activation following Fas stimulation. The ApoMSC secretome inhibited human T cell proliferation and activation, and chemoattracted monocytes in vitro. Both immunomodulatory activities were dependent on the cyclooxygenase2 (COX2)/prostaglandin E2 (PGE2) axis. To assess the clinical relevance of ApoMSC signature, we used the peripheral blood mononuclear cells (PBMCs) from a cohort of fistulizing Crohn's Disease (CD) patients who had undergone MSC treatment (ADMIRE-CD). Compared to healthy donors, MSCs exposed to patients' PBMCs underwent apoptosis and released PGE2 in a caspase-dependent manner. Both PGE2 and apoptosis were significantly associated with clinical responses to MSCs. Our findings identify a new mechanism whereby caspase activation delivers ApoMSC immunosuppression. Remarkably, such molecular signatures could implicate translational tools for predicting patients' clinical responses to MSC therapy in CD.
Structure and functions of Glycosaminoglycans: a short review (with some personal scientific contributions)
Creators: name: Calatroni, Alberto
Publisher: name: Atti della Accademia Peloritana dei Pericolanti - Classe di Scienze Medico-Biologiche
Year: 2020
Subjects: Glycosaminoglycans; Proteoglycans; Extracellular Matrix; Mucopolysaccharidoses; human plasma

description: Abstract This present article wishes to underline the strong contribution to both structure and functions of living bodies of a group of acidic polysaccharides, the Glycosaminoglycans (GAGs), usually covalently linked to proteins to give Proteoglycans (PGs): GAGs and PGs are structural components of connective tissues and of tissue extracellular matrix, also present on cell membrane surface and in secretory granules. Their basic structure is very simple: a linear repeat of disaccharide units, each composed of uronic acid and hexosamine moieties. However, except unsulphated high molecular weight Hyaluronan, they show very high structural heterogeneity, due to the chemical nature of both uronic acid and aminosugar components, the degree of monosaccharide sulphation, the distribution of O- and N-sulphate groups, the length of the chain and its copolymeric degree, the nature of interacting protein in PGs. So they are able to interact with a large variety of molecular structures, including matrix proteins, growth factors, cytokines and chemokines, and enzymes. Many functions in connective tissues are known GAG-depending. Many others in the body are expected. In this short review, to each one of the selected topics, GAGs synthesis, distribution, catabolism and related inborn errors, PGs functions, some personal scientific contributions will be recalled.
description: Atti della Accademia Peloritana dei Pericolanti - Classe di Scienze Medico-Biologiche, Vol 108, No 2 (2020)
Radio Spectra of Giant Radio Galaxies from RATAN-600 Data
Creators: name: Khabibullina, M. L.
name: Verkhodanov, O. V.
name: Singh, M.
name: Pirya, A.
name: Verkhodanova, N. V.
name: Nandi, S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Measurements of the flux densities of the extended components of seven giant radio galaxies obtained using the RATAN-600 radio telescope at wavelengths of 6.25 and 13 cm ar e presented. The spectra of components of these radio galaxies are constructed using these new RA TAN-600 data together with data from the WENSS, NVSS, and GB6 surveys. The spectral indices in the stu died frequency range are calculated, and the need for detailed estimates of the integrated contributi on of such objects to the background emission is demonstrated.
description: 7 pages, 2 figures, 5 tables
Charakterisierung von Partikeln im Regenabfluss im Trennsystem und Identifizierung von Parametern zur Quellenidentifikation mittels "Fingerprinting"
Creators: name: Kittlaus, Steffen
Publisher: name: Karlsruhe
Year: 2012

description: In den letzten Jahren ist durch Kreislaufschließung in der Industrie und Ausbau der kommunalen Abwasserreinigung die Gewässerbelastung durch Einleitungen von Schadstoffen aus Punktquellen (Kläranlagen, Direkteinleiter) zurück gegangen. Dadurch gewinnt die Belastung aus diffusen Quellen (Landwirtschaft, urbane Systeme) zunehmend an Bedeutung für den Gewässerschutz.
Ein Eintragspfad aus urbanen Systemen sind die Einleitungen von Regenabfluss, wobei hier zwischen Mischwasserentlastungen und Regenwassereinleitungen aus der Trennkanalisation unterschieden werden kann. Die Regenabflüsse aus der Trennkanalisation werden meist, nach Aufbereitung in einfachen Sedimentationsbecken, direkt in das Gewässer eingeleitet.
Obwohl es sich nur um Regenabfluss handelt, ist dieser Abfluss von versiegelten Flächen teils erheblich verschmutzt. Neben den Einträgen durch atmosphärische Deposition auf die Flächen kommen Verunreinigungen durch fließenden und stehenden Verkehr, Abträge von Baumaterialien und durch weitere anthropogene Aktivitäten hinzu.
Da viele Schadstoffe eine ausgeprägte Affinität zu Feststoffpartikeln zeigen und die eingesetzten Behandlungsmaßnahmen maßgeblich auf die Abtrennung von Feststoffen abzielen, ist eine Charakterisierung der Partikel mit besonderem Augenmerk auf ihre Schadstoffbeladung eine wichtige Voraussetzung für die Behandlung der Abflüsse und die Abschätzung der Einträge
von Schadstoffen in die Gewässer.
In dieser Arbeit wurden einerseits die Zuläufe von zwei Regenbecken (eines in einem stark urban geprägtem Industriegebiet, ein anderes in einem etwas ländlicheren Gewerbegebiet) im Falle des Beckenüberlaufs beprobt werden, andererseits sollen drei verschiedene Quellen (Dach-, Hof- und Straßenabläufe) in einem der Einzugsgebiete beprobt werden, um eine Zuordnung der Abflusskomponenten zu den Quellen zu versuchen.
Die Partikelproben sollen hinsichtlich verschiedener Parameter charakterisiert werden:
• Form, Größe und stoffliche Zusammensetzung der Partikel sollen mittels REM und EDX untersucht werden.
• Die Schadstoffbeladung der verschiedenen Korngrößenfraktionen soll gemessen und zwischen den zwei Becken verglichen werden.
• Es soll versucht werden mittels „Fingerprinting“ die Schadstoffkomponenten im Beckenzulauf den verschiedenen Quellen zuzuordnen, oder zumindest geeignete Parameter für ein solches „Fingerprinting“ zu identifizieren.
Prevalence of and factors associated with gabapentinoid use and misuse among Texas Medicaid recipients
Creators: name: Ibiloye, Elizabeth Ayooluwa
name: 0000-0002-4024-9957
Publisher: name: The University of Texas at Austin
Year: 2020
Subjects: Gabapentinoid
Gabapentin
Pregabalin
Use
Misuse

description: Gabapentinoids include drugs such as gabapentin and pregabalin, which are both approved by the FDA for the treatment of neuropathic pain, as well as other conditions. Rising prescribing trends and fatalities due to concurrent opioid overdose have created public health concerns regarding gabapentinoid misuse and abuse in the United States (US). Gabapentin prescriptions in the US increased from approximately 39 million (2012) to 67 million (2018) and pregabalin sales more than doubled from $2 billion (2012) to $4.4 billion (2016). This study aimed to assess the prevalence of and factors associated with gabapentinoid use and misuse. This was a retrospective database study using Texas Medicaid prescription and medical claims from 1/1/12-8/30/16. Subjects were included if they: were between 18–63 years at index date, had at least one gabapentinoid prescription, and were continuously enrolled for 6 months pre-index and 12 months post-index. The dependent variable in this study was gabapentinoid misuse while age, gender, concurrent opioid use, neuropathic pain diagnoses and gabapentinoid type were independent variables. Of included subjects (N=39,000), 0.2% (N=81) were gabapentinoid misusers. The majority (76.4%) of gabapentinoid users were 41–63 years with a mean±SD age of 48.2±10.7 years. Gabapentinoid misusers were significantly younger than gabapentinoid non-misusers (45.1±11.0 vs. 48.2±10.7, p=0.0084). The majority were female (68.1%), and a significantly higher proportion of males misused gabapentinoids compared to females (0.3% vs. 0.2%, p=0.0079). Over one-half (51.9%) of the study sample had neuropathic pain and gabapentinoid misuse was significantly higher in neuropathic pain patients compared to those without neuropathic pain (0.3% vs. 0.1%, p=0.0078). Over three-quarters (77.4%) of patients were using gabapentin, however, gabapentinoid misuse was significantly higher among pregabalin users compared to gabapentin users (0.4% vs. 0.2%, p=0.0003). About one-sixth (17.3%) of gabapentinoid users had at least 90 days of concurrent opioid use. However, there was no significant difference in gabapentinoid misuse among patients with concurrent opioid use compared to patients without (0.3% vs. 0.2%, p = 0.1440). The prevalence of gabapentinoid misuse was low (0.2%) among Texas Medicaid recipients and younger age, male gender, neuropathic pain diagnosis and pregabalin use were significantly associated with gabapentinoid misuse.
Food insecurity in Greater Vancouver : a mixed methods exploratory study with food bank members
Creators: name: Holmes, Eleanor
Publisher: name: University of British Columbia
Year: 2017

description: Background: Household food insecurity (HFI), defined as limited access to adequate, safe, and nutritious food, was estimated to affect 13% of Canadian households in 2012. In Canada, one of the primary efforts to support food insecure households are food banks. Although food bank use is on the rise in Canada, few studies have described the diverse experiences of individuals who use them. This study examined characteristics and experiences of food bank users, including socio-demographic characteristics, severity of HFI, patterns of food bank use, and current challenges and preferences for services. Methods: This mixed-methods study involved interviewer-administered surveys (n=77) and 5 focus groups (n=27) with food bank members from Vancouver, BC. Surveys assessed socio-demographic and health characteristics, food bank use, and satisfaction with services. Focus groups examined experiences, challenges, and recommendations for improving services. Survey analyses included descriptive statistics and Fisher’s exact tests to explore associations with severe HFI. Thematic analysis was used for focus group data. Results: Inadequate income emerged as the most prominent factor influencing food bank use. Survey respondents reported severe food insecurity (66%), health challenges (77%), reliance on social assistance (84%), and long-term (>5 years) food bank use (54%). Monthly income level (<$1800) and rental costs (>$500) were significantly associated with severe HFI (p<0.05), however, frequency and duration of food bank use were not. Although survey and focus group participants indicated that food banks did not provide enough food to meet their needs, participants reported positive experiences at the food bank and most anticipated needing these services in future. Focus group discussions highlighted improving food provision quality and quantity, and creating more safe and supportive environments. Linking with health supports and participating in advocacy towards poverty reduction were also suggested. Significance: Food banks are an entrenched, long-term strategy for households driven by inadequate financial resources to access food. While gratitude for food bank services was apparent, this study supports growing evidence that food banks are an insufficient response to food insecurity. Participant envisioned ways that food bank organisations can adjust to better support their users included updates to current services that incorporate health, wellness, and advocacy.
Exogenous chronic lipoid pneumonia: a case report
Creators: name: Braccioni, Fausto
name: Coppolino, Irene
name: Vito, Stefania
name: Pezzuto, Ferica
name: Lo Bello, Federica
name: Foltran, Gabriele
name: Alberti, Saverio
name: Vianello, Andrea
name: Caramori, Gaetano
Publisher: name: Atti della Accademia Peloritana dei Pericolanti - Classe di Scienze Medico-Biologiche
Year: 2020
Subjects: lipoid pneumonia, lung disease, oils, lipid

description: We present the case of a 75-year-old manwho suffered from a post-stroke dysphagia and a long term history of exposure to paraffin oilforchronicconstipation. At the chest computed tomography scan two pulmonary masses were detected, in the lower left lobe and in the middle lobe, respectively. Diffuse and bilateral ground-glass nodules were also described. A transbronchial biopsy and a bronchoalveolar lavage were performed. The histopathological examination showed the accumulation of lipoid material and macrophages with foamy and vacuolated cytoplasm surrounded by inflammatory cell infiltration and a mild fibrosis. The diagnosis of a exogenous chronic lipoid pneumonia was formulated. Reporting this case, we would like to alert the clinicians to be aware of this entity that can mimic other pathological conditions.
description: Atti della Accademia Peloritana dei Pericolanti - Classe di Scienze Medico-Biologiche, Vol 108, No 2 (2020)
Vacuum Topology of the Two Higgs Doublet Model
Creators: name: Battye, Richard A.
name: Brawn, Gary D.
name: Pilaftsis, Apostolos
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We perform a systematic study of generic accidental Higgs-family and CP symmetries that could occur in the two-Higgs-doublet-model potential, based on a Majorana scalar-field formalism which realizes a subgroup of GL(8,C). We derive the general conditions of convexity and stability of the scalar potential and present analytical solutions for two non-zero neutral vacuum expectation values of the Higgs doublets for a typical set of six symmetries, in terms of the gauge-invariant parameters of the theory. By means of a homotopy-group analysis, we identify the topological defects associated with the spontaneous symmetry breaking of each symmetry, as well as the massless Goldstone bosons emerging from the breaking of the continuous symmetries. We find the existence of domain walls from the breaking of Z_2, CP1 and CP2 discrete symmetries, vortices in models with broken U(1)_PQ and CP3 symmetries and a global monopole in the SO(3)_HF-broken model. The spatial profile of the topological defect solutions is studied in detail, as functions of the potential parameters of the two-Higgs doublet model. The application of our Majorana scalar-field formalism in studying more general scalar potentials that are not constrained by the U(1)_Y hypercharge symmetry is discussed. In particular, the same formalism may be used to properly identify seven additional symmetries that may take place in a U(1)_Y-invariant scalar potential.
description: 89 pages, 13 tables and 12 figures (version as to appear in JHEP)
Wachstum von dünnen Metall-organischen Gerüstverbindungen auf funktionalisierten Goldoberflächen
Creators: name: Arslan, Hasan Kemal
Publisher: name: Karlsruhe
Year: 2012
Subjects: SURMOFs
SAMs
LPE-Methode
HKUST-1 und Ablösung

description: Das Ziel dieser Arbeit war, die Präparation von Metall-organische Gerüstverbindungen (MOF)-Filmen auf Oberflächen und als freistehende monolithische Membrane darzustellen, sowie deren Anwendung. Dazu wurden SURMOFs mit Hilfe LPE-Methode auf Oberflächen aufgebaut. Das Wachstum des SURMOFs wurde durch Entwicklung des Sprühprozesses beschleunigt. Zum anderen war das Ziel die Herstellung von 2D und 3D SURMOFs auf Oberflächen. Des Weiteren sollten PSM an den SURMOFs durchgeführt werden.
Early Universe effective theories: The Soft Leptogenesis and R-Genesis Cases
Creators: name: Fong, Chee Sheng
name: Gonzalez-Garcia, M. C.
name: Nardi, Enrico
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss the effective theory appropriate for studying soft leptogenesis at temperatures T>10^7 GeV. In this regime, the main source of the B-L asymmetry is the CP asymmetry of a new anomalous R-charge that couple to generalized anomalous electroweak processes. Baryogenesis thus occurs mainly through R-genesis, and with an efficiency that can be up to two orders of magnitude larger than in usual estimates. Contrary to common belief, a sizeable baryon asymmetry is generated also when thermal corrections to the CP asymmetries in sneutrino decays are neglected which, in soft leptogenesis, implyes vanishing lepton-flavour CP asymmetries. We present general Boltzmann equations for soft leptogenesis that are valid in all temperature regimes.
description: 41 pages, 5 figures, added 4 references
Spontaneous symmetry breaking in a two-lane model for bidirectional overtaking traffic
Creators: name: Appert-Rolland, C.
name: Hilhorst, H. J.
name: Schehr, G.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: First we consider a unidirectional flux ω_bar of vehicles each of which is characterized by its `natural' velocity v drawn from a distribution P(v). The traffic flow is modeled as a collection of straight `world lines' in the time-space plane, with overtaking events represented by a fixed queuing time tau imposed on the overtaking vehicle. This geometrical model exhibits platoon formation and allows, among many other things, for the calculation of the effective average velocity w=ϕ(v) of a vehicle of natural velocity v. Secondly, we extend the model to two opposite lanes, A and B. We argue that the queuing time τin one lane is determined by the traffic density in the opposite lane. On the basis of reasonable additional assumptions we establish a set of equations that couple the two lanes and can be solved numerically. It appears that above a critical value ω_bar_c of the control parameter ω_bar the symmetry between the lanes is spontaneously broken: there is a slow lane where long platoons form behind the slowest vehicles, and a fast lane where overtaking is easy due to the wide spacing between the platoons in the opposite direction. A variant of the model is studied in which the spatial vehicle density ρ_bar rather than the flux ω_bar is the control parameter. Unequal fluxes ω_bar_A and ω_bar_B in the two lanes are also considered. The symmetry breaking phenomenon exhibited by this model, even though no doubt hard to observe in pure form in real-life traffic, nevertheless indicates a tendency of such traffic.
description: 50 pages, 16 figures; extra references added
Biomimetische Oberflächenmodifikation mit rekombinanten pilzlichen Hydrophobinen und ihr Einfluss auf die bakterielle Biofilmbildung
Creators: name: Rieder, Annika
Publisher: name: Karlsruhe
Year: 2012
Subjects: rekombinante Hydrophobine
Oberflächenmodifikation
bakterielle Adhäsion
Biofilmbildung

description: Biofilme sind ubiquitär verbreitet und haben einen ambivalenten Einfluss auf die Umwelt, technische Systeme und die menschliche Gesundheit. Die gezielte Beeinflussung der Biofilmbildung ist von großem Interesse und vor allem die Modifikation von physikochemischen Oberflächenparametern wird als Erfolg versprechendes Konzept angesehen. In dieser Arbeit werden rekombinante Hydrophobine für Oberflächenmodifikationen eingesetzt und ihr Einfluss auf die bakterielle Biofilmbildung untersucht.
On the stellar and baryonic mass fractions of central blue and red galaxies
Creators: name: Rodriguez-Puebla, A.
name: Avila-Reese, V.
name: Firmani, C.
name: Colin, P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: By means of the abundance matching technique, we infer the local stellar and baryonic mass-halo mass (Ms-Mh and Mb-Mh) relation for central blue and red galaxies separately in the mass range Ms~10^8.5-10^12.0 Msun. The observational inputs are the SDSS central blue and red Galaxy Stellar Mass Functions reported in Yang et al. 2009, and the measured local gas mass-Ms relations for blue and red galaxies. For the Halo Mass Function associated to central blue galaxies, the distinct LCDM one is used and set up to exclude: (i) the observed group/cluster mass function (blue galaxies are rare as centers of groups/clusters), and (ii) halos with a central major merger at resdshifts z<0.8 (dry late major mergers destroy the disks of blue galaxies). For red galaxies, we take the complement of this function to the total. The obtained mean Ms-Mh and Mb-Mh relations of central blue and red galaxies do not differ significantly from the respective relations for all central galaxies. For Mh>10^11.5 Msun, the Ms's of red galaxies tend to be higher than those of blue ones for a given Mh, the difference not being larger than 1.7. For Mh<10^11.5 Msun, this trend is inverted. For blue (red) galaxies: (a) the maximum value of fs=Ms/Mh is 0.021^{+0.016}_{-0.009} (0.034{+0.026}_{-0.015}) and it is attained atlog(Mh/Msun)~12.0 (log(Mh/Msun)~11.9); (b) fs\propto Mh (fs\propto Mh^3) at the low-mass end while at the high-mass end, fs\propto Mh^-0.4 (fs\propto Mh^-0.6). The baryon mass fractions, fb=Mb/Mh, of blue and red galaxies reach maximum values of fb=0.028^{+0.018}_{-0.011} and fb=0.034^{+0.025}_{-0.014}, respectively. For Mh<10^11.3 Msun, a much steeper dependence of fb on Mh is obtained for the red galaxies than for the blue ones. We discuss on the differences found in the fs-Mh and fb-Mh relations between blue and red galaxies in the light of of semi-empirical galaxy models.
description: 19 pages, 8 figures, RevMexAA, 48, in press. Minor corrections and references updated after Referee's report
On aspects of self-consistency in the Dyson-Schwinger approach to QED and λ(ϕ^\star ϕ)^2 theories
Creators: name: Casalbuoni, Roberto
name: Ladisa, Massimo
name: Olevano, Valerio
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We investigate some aspects of the self-consistency in the Dyson-Schwinger approach to both the QED and the self-interacting scalar field theories. We prove that the set of the Dyson-Schwinger equations, together with the Green-Ward-Takahashi identity, is equivalent to the analogous set of integral equations studied in condensed matter, namely many-body perturbation theory, where it is solved self-consistently and iteratively. In this framework, we compute the non-perturbative solution of the gap equation for the self-interacting scalar field theory.
description: 9 pages, to appear on Phys. Rev. D
Untersuchung neuartiger Sensorkonzepte und Entwicklung eines effektiven Modells der Strahlenschädigung für die Simulation hochbestrahlter Silizium-Teilchendetektoren
Creators: name: Eber, Robert
Publisher: name: Karlsruhe
Year: 2013
Subjects: silicon
sensor
radiation
defect
model

description: Silicon sensors in the Tracker of the CMS experiment at CERN will suffer from sever radiation damage after the upgrade of the LHC beyond 2023. A new sensor design is presented and a two-defect radiation damage model for the simulation is developed for the prediction of the performance of future silicon sensors.
Generalized Hidden $\mathcal{Z}_2$ Symmetry of Neutrino Mixing
Creators: name: Dicus, Duane A.
name: Ge, Shao-Feng
name: Repko, Wayne W.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We explore the consequences of the neutrino mass matrix having a hidden $\mathcal{Z}_2$ symmetry and one zero eigenvalue. When implemented, these two conditions give relations among the mixing angles. In addition, fitting these relations to the existing oscillation data allows limits to be placed on the parameter of the symmetry.
description: 10 pages, 1 table, 5 figures, revised references
Pengelolaan Jurnal Ilmiah Menggunakan OJS 2
Creators: name: Laksana, Eko Pramudya
Publisher: name: Zenodo
Year: 2021

description: Materi disampaikan pada kegiatan " Optimalisasi OJS 2 Untuk Pengelolaan Jurnal Menuju Jurnal Nasional Terakreditasi" Fakultas Ilmu Keolahragaan Universitas Negeri Malang, pada tanggal 27 September 2021.
Separating arsenic oxyanions from natural waters for oxygen isotope analysis
Creators: name: Tang, Xiaohui
Publisher: name: Karlsruhe
Year: 2013

description: This study has developed a complete procedure for the measurement of oxygen isotopes in arsenic oxyanions in natural waters by using different adsorbents. The experimental results of kinetic exchange of oxygen between AsO43- and water show that the entire exchange procedure happens in a very short time at different pH conditions and temperatures.
Manajemen Penerbitan OJS 3
Creators: name: Aribowo, Eric Kunto
Publisher: name: Zenodo
Year: 2021
Subjects: open journal system
OJS
editorial workflow

description: Salindia ini dipaparkan pada acara Serba-Serbi Pengelolaan Jurnal & Layout Artikel Jurnal Bereputasi yang diselenggarakan atas kerja sama LPPM Universitas Negeri Padang dengan Relawan Jurnal Indonesia. Acara ini berlangsung pada 26 September 2021. Topik diskusi: Manajemen penerbitan artikel OJS 3 mulai dari peran yg ada di OJS, workflow di OJS, serta poin-poin penting yg harus diperhatikan pada saat submission hingga publish Layout artikel jurnal, usulan contoh layout artikel yg baik untuk template, item-item yg harus ada pada artikel, hingga checklist terkait ilustrasi (table & figure) Penggunaan bahasa, poin-poin penting sesuai Scopus Policy and Selection yg harus diperhatikan, terutama terkait clarity of abstract dan readability of articles Salindia materi: https://www.erickunto.com/2021/09/manajemen-penerbitan-ojs-3.html Video rekaman: https://youtu.be/FtcotXJYI48
description: {"references": ["https://www.erickunto.com/2021/09/manajemen-penerbitan-ojs-3.html", "https://youtu.be/FtcotXJYI48"]}
PDF Simulations of Auto-Ignition in Internal Combustion Engines
Creators: name: Zoweil, Ahmed
Publisher: name: Karlsruhe
Year: 2013
Subjects: PDF
Monte Carlo
Selbszündung
Motorklopfen
HCCI

description: Die Eigenschaften der Verbrennungsvorgänge in Verbrennungsmotoren bieten eine starke Motivation für die Annahme stochastischer Ansätze zur Modellierung dieser Prozesse. Eine neue Methodik wurde entwickelt zur Modellierung der Selbstzündung bei Verbrennungsmotoren. Diese Methodik basiert auf der Lösung der Transportgleichung für die Wahrscheinlichkeitsdichtefunktion für die Geschwindigkeit und Skalare.
Modification of a charged-Bose-gas model for observed room-temperature superconductivity in narrow channels through films of oxidised atactic polypropylene
Creators: name: Eagles, D. M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Reasons have been found for thinking that the minimum diameter of channels of a given length to support superconductivity at room temperature through films of oxidised atactic polypropylene (OAPP) is considerably larger than found in a model for Bose condensation in an array of nanofilaments [D.M. Eagles, Phil. Mag. 85, 1931 (2005)] used previously. This model was introduced to interpret experimental results dating from 1988 on OAPP. The channels are thought to be of larger diameter than believed before because, for an N-S-N system where the superconductor consists of an array of single-walled carbon nanotubes, the resistance, for good contacts, is R_Q/2N, where N is the number of nanotubes and R_Q=12.9 kOhm [See e.g. M. Ferrier et al., Solid State Commun. 131, 615 (2004)]. We assume this would be 2R_Q/N for a triplet superconductor with all spins in the same direction and no orbital degeneracy, which may be the case for nanofilaments in OAPP. Hence one may infer a minimum number of filaments for a given resistance. In the present model, the E(K) curve for the bosons is taken to be of a Bogoliubov form, but with a less steep initial linear term in the dispersion at T_c than occurs at low T. This form is different from the simple linear plus quadratic dispersion, with a steeper initial slope, used in my 2005 paper. A combination of theory and experimental data has been used to find approximate constraints on parameters appearing in the theory.
description: Publication details added. Correction to bracketing in Eq. (1), which was incorrect in v1 of preprint and in the published article
Error analysis of implicit and exponential time integration of linear Maxwell's equations
Creators: name: Pazur, Tomislav
Publisher: name: Karlsruhe
Year: 2013
Subjects: implicit Runge-Kutta methods
time integration
discontinuous Galerkin finite element method
error analysis
Maxwell's equations

description: This thesis is concerned with the numerical analysis of some well-known time integration methods, such as implicit collocation methods and exponential integrators, for linear Maxwell's equations in time-domain. The error analysis of time integrators is done both for continuous Maxwell's equations in a semigroup theory framework and for space discrete problem obtained by discretizing Maxwell's equations in space by using discontinuous Galerkin finite element method.
A techno-economic assessment of the generation and usage of biogenic gases in Chile as a substitute of natural gas
Creators: name: Bidart, Christian
Publisher: name: Karlsruhe
Year: 2013
Subjects: bio-SNG
bioenergy
potential analysis

description: The study uses a novel techno-economic approach to calculate the economic potential of biomass in Chile. The pathway of electricity generation and that of upgraded biogas were assessed and compared. Both routes were evaluated employing proven technologies. Through a mathematical procedure relying on limits of potential, supply-cost curves were constructed. The results, technical potential, were integrated into a geographical information system (GIS) to show the energy distribution nationwide.
Approximate gauge symmetry of composite vector bosons
Creators: name: Suzuki, Mahiko
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It can be shown in a solvable field theory model that the couplings of the composite vector bosons made of a fermion pair approach the gauge couplings in the limit of strong binding. Although this phenomenon may appear accidental and special to the vector boson made of a fermion pair, we extend it to the case of bosons being constituents and find that the same phenomenon occurs in more an intriguing way. The functional formalism not only facilitates computation but also provides us with a better insight into the generating mechanism of approximate gauge symmetry, in particular, how the strong binding and global current conservation conspire to generate such an approximate symmetry. Remarks are made on its possible relevance or irrelevance to electroweak and higher symmetries.
description: Correction of typos. The published version
Microbiological and bioinformatics investigation into acid rock drainage phenomenon in Alberta oil sands tailings
Creators: name: TaghinezhadNamini, Masoud
Publisher: name: University of British Columbia
Year: 2017

description: The Alberta oil sands have produced considerable revenue for Canada. However, the environmental effects associated with extracting the oil can be devastating if not understood and dealt with. One of the potential environmental hazards is acid rock drainage (ARD) from oil sand deposits. Acidification is a well-known destructive phenomenon from our mining industry that leads to the pollution of soil and surrounding water resources. Since microorganisms are major contributors in the onset and propagation of ARD, the successful approach to the problem should focus on the microorganisms. Five bacteria that are believed to be major contributors to ARD were isolated from raw and paraffinic thickened tailings at different temperatures. To gain a deeper insight into the isolated bacteria, their 16S rRNA genes were partially sequenced, Gram stains were performed, metabolic rates were determined using pH, sulfate, thiosulfate, ferric iron concentration changes. All of these were determined at 6 different temperatures 7, 12, 25, 30, 37 and 40°C. The results revealed that all of the isolates were capable of growth at 4°C but had maximum growth rates at 25 or 30°C. A significant attempt was made to isolate the phages capable of lysing isolated bacteria for the possibility of phage therapy. An in depth study was conducted regarding the CRISPR systems in the bacteria that are believed to be the major contributors to ARD. The results revealed that there is evidence of lytic viral infections in the bacterial population capable of reducing the pH in ARD environments. This reveals that lytic viruses could be isolated under the right circumstances.
Directed test generation and analysis for web applications
Creators: name: Milani Fard, Amin
Publisher: name: University of British Columbia
Year: 2017

description: The advent of web technologies has led to the proliferation of modern web applications with enhanced user interaction and client-side execution. JavaScript (the most widely used programming language) is extensively used to build responsive modern web applications. The event-driven and dynamic nature of JavaScript, and its interaction with the Document Object Model (DOM), make it challenging to understand and test effectively. The ultimate goal of this thesis is to improve the quality of web applications through automated testing and maintenance. The work presented in this dissertation has focused on advancing the state-of-the-art in testing and maintaining web applications by proposing a new set of techniques and tools. We proposed (1) a feedback-directed exploration technique and a tool to cover a subset of the state-space of a given web application; the exploration is guided towards achieving higher functionality, navigational, and page structural coverage while reducing the test model size, (2) a technique and a tool to generate UI tests using existing tests; it mines the existing test suite to infer a model of the covered DOM states and event-based transitions including input values and assertions; it then expands the inferred model by exploring alternative paths and generates assertions for the new states; finally it generates a new test suite from the extended model, (3) the first empirical study on JavaScript tests to characterize their prevalence and quality metrics, and to find out root causes for the uncovered (missed) parts of the code under test, (4) a DOM-based JavaScript test fixture generation technique and a tool, which is based on dynamic symbolic execution; it guides the executing through different branches of a function by producing expected DOM instances, (5) a technique and a tool to detect JavaScript code smells using static and dynamic analysis. We evaluated the presented techniques by conducting various empirical studies and comparisons. The evaluation results point to the effectiveness of the proposed techniques in terms of fault detection capability and code coverage for test generation, and in terms of accuracy for code smell detection.
Time-dependent Mechanics and Lagrangian submanifolds of Dirac manifolds
Creators: name: Guzmán, E.
name: Marrero, J. C.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Differential Geometry (math.DG)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 53D12, 53D17, 70G45, 70H03, 70H05, 70H15

description: A description of time-dependent Mechanics in terms of Lagrangian submanifolds of Dirac manifolds (in particular, presymplectic and Poisson manifolds) is presented. Two new Tulczyjew triples are discussed. The first one is adapted to the restricted Hamiltonian formalism and the second one is adapted to the extended Hamiltonian formalism.
Model-Based Environmental Visual Perception for Humanoid Robots
Creators: name: Gonzalez Aguirre, David Israel
Publisher: name: Karlsruhe
Year: 2013
Subjects: Robot Vision
Humanoids
Recognition
Localization
HDR Imaging
Perception

description: The visual perception of a robot should answer two fundamental questions: What? and Where? In order to properly and efficiently reply to these questions, it is essential to establish a bidirectional coupling between the external stimuli and the internal representations. This coupling links the physical world with the inner abstraction models by sensor transformation, recognition, matching and optimization algorithms. The objective of this PhD is to establish this sensor-model coupling.
Vacuum stability, string density of states and the Riemann zeta function
Creators: name: Angelantonj, Carlo
name: Cardella, Matteo
name: Elitzur, Shmuel
name: Rabinovici, Eliezer
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Dynamical Systems (math.DS)
subject: Number Theory (math.NT)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We study the distribution of graded degrees of freedom in classically stable oriented closed string vacua and use the Rankin-Selberg transform to link it to the finite one-loop vacuum energy. In particular, we find that the spectrum of physical excitations not only must enjoy asymptotic supersymmetry but actually, at very large mass, bosonic and fermionic states must follow a universal oscillating pattern, whose frequencies are related to the zeros of the Riemann zeta-function. Moreover, the convergence rate of the overall number of the graded degrees of freedom to the value of the vacuum energy is determined by the Riemann hypothesis. We discuss also attempts to obtain constraints in the case of tachyon-free open-string theories.
description: 1+26 pages, 7 figures. v2 refs added
title: Sol‐Gel‐Derived Ordered Mesoporous High Entropy Spinel Ferrites and Assessment of Their Photoelectrochemical and Electrocatalytic Water Splitting Performance
Creators: name: Einert, Marcus
name: Waheed, Arslan
name: Lauterbach, Stefan
name: Mellin, Maximilian
name: Rohnke, Marcus
name: Wagner, Lysander Q.
name: Gallenberger, Julia
name: Tian, Chuanmu
name: Smarsly, Bernd M.
name: Jaegermann, Wolfram
name: Hess, Franziska
name: Schlaad, Helmut
name: Hofmann, Jan P.
Publisher: name: Wiley-VCH
Year: 2023

description: The novel material class of high entropy oxides with their unique and unexpected physicochemical properties is a candidate for energy applications. Herein, it is reported for the first time about the physico‐ and (photo‐) electrochemical properties of ordered mesoporous (CoNiCuZnMg)Fe₂O₄ thin films synthesized by a soft‐templating and dip‐coating approach. The A‐site high entropy ferrites (HEF) are composed of periodically ordered mesopores building a highly accessible inorganic nanoarchitecture with large specific surface areas. The mesoporous spinel HEF thin films are found to be phase‐pure and crack‐free on the meso‐ and macroscale. The formation of the spinel structure hosting six distinct cations is verified by X‐ray‐based characterization techniques. Photoelectron spectroscopy gives insight into the chemical state of the implemented transition metals supporting the structural characterization data. Applied as photoanode for photoelectrochemical water splitting, the HEFs are photostable over several hours but show only low photoconductivity owing to fast surface recombination, as evidenced by intensity‐modulated photocurrent spectroscopy. When applied as oxygen evolution reaction electrocatalyst, the HEF thin films possess overpotentials of 420 mV at 10 mA cm⁻² in 1 m KOH. The results imply that the increase of the compositional disorder enhances the electronic transport properties, which are beneficial for both energy applications.
Theory of double-resonant Raman spectra in graphene: intensity and line shape of defect-induced and two-phonon bands
Creators: name: Venezuela, Pedro
name: Lazzeri, Michele
name: Mauri, Francesco
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We calculate the double resonant (DR) Raman spectrum of graphene, and determine the lines associated to both phonon-defect processes, and two-phonons ones. Phonon and electronic dispersions reproduce calculations based on density functional theory corrected with GW. Electron-light, -phonon, and -defect scattering matrix elements and the electronic linewidth are explicitly calculated. Defect-induced processes are simulated by considering different kind of idealized defects. For an excitation energy of $ε_L=2.4$ eV, the agreement with measurements is very good and calculations reproduce: the relative intensities among phonon-defect or among two-phonon lines; the measured small widths of the D, $D'$, 2D and $2D'$ lines; the line shapes; the presence of small intensity lines in the 1800, 2000 cm$^{-1}$ range. We determine how the spectra depend on the excitation energy, on the light polarization, on the electronic linewidth, on the kind of defects and on their concentration. According to the present findings, the intensity ratio between the $2D'$ and 2D lines can be used to determine experimentally the electronic linewidth. The intensity ratio between the $D$ and $D'$ lines depends on the kind of model defect, suggesting that this ratio could possibly be used to identify the kind of defects present in actual samples. Charged impurities outside the graphene plane provide an almost undetectable contribution to the Raman signal.