cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Markov partitions for Anosov diffeomorphisms. (Particiones de Markov para difeomorfismos de Anosov.) (Spanish)
Creators: name: Catsigeras, Eleonora
Publisher: name: arXiv
Year: 2011
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37-01, 37D20, 58J60

description: This monographic short book is intended to a brief introduction in the classic topic of the theory of Hiperbolic Dynamical Systems, for Spanish speaking students of an undergraduate course in Mathematics. We revisit the classic definition of Markov Partitions for Anosov diffeomorphisms on compact manifolds. We focus on the theorem of Sinai (Func. Anal. and its Applic. 2, 1968) stsating the existence of such partitions with arbitrarily small diameter. To prove the theorem of Sinai we restate the constructive method in Bowen, Lecture Notes in Math. 470, 1975. Finally we also relate the results, the method of their proofs and the properties of the invariant submanifolds, with the semiconjugation of the Anosov diffeomorphism with a Bernoulli shift, via the symbolic dynamics.
description: Preprint with 40 pages, no figures
International crime and the politics of international criminal theory
Creators: name: Kiyani, Asad Ghaffar
Publisher: name: University of British Columbia
Year: 2016

description: This dissertation responds to the dissonance between international criminal law’s utopian visions and the challenges posed by its implementation. While holding great promise, international criminal law remains a novel and unstable discipline, contested as being under-theorized and/or deferential to political and economic power. These arguments attack the substance and structure of international criminal law, undermining claims as to its effectiveness and even sustainability. In responding to these challenges, this dissertation uses postcolonial theory and Third World Approaches to International Law (TWAIL) to address central questions of criminal law theory. The goal of this dissertation is to develop a plausible normative framework for international criminal law. This normative framework will provide a platform for critiquing existing norms and practices, as well as the basis for alternative understandings of international criminal law, and potential responses to these problems that are normatively coherent and consistent with the goals of international criminal law. This dissertation offers five inter-related conclusions. First, it demonstrates the utility of TWAIL as a methodological and theoretical frame for studying international criminal law. Second, it argues for a broader and more normatively consistent understanding of what constitutes an international crime. Third, it offers a justification for extraterritorial punishment that accounts for state sovereignty as an important interest. Fourth, it explains why the selective application of international criminal law undermines this justification, and how this might be remedied in both normative and practical terms. Fifth, it identifies the potential disruptions international criminal law poses to general public international law, and explains why these challenges may undermine the long-term goals and viability of the field.
Improved Orbital Parameters and Transit Monitoring for HD 156846b
Creators: name: Kane, Stephen R.
name: Howard, Andrew W.
name: Pilyavsky, Genady
name: Mahadevan, Suvrath
name: Henry, Gregory W.
name: von Braun, Kaspar
name: Ciardi, David R.
name: Dragomir, Diana
name: Fischer, Debra A.
name: Jensen, Eric
name: Laughlin, Gregory
name: Ramirez, Solange V.
name: Wright, Jason T.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: HD 156846b is a Jovian planet in a highly eccentric orbit (e = 0.85) with a period of 359.55 days. The pericenter passage at a distance of 0.16 AU is nearly aligned to our line of sight, offering an enhanced transit probability of 5.4% and a potentially rich probe of the dynamics of a cool planetary atmosphere impulsively heated during close approach to a bright star (V = 6.5). We present new radial velocity (RV) and photometric measurements of this star as part of the Transit Ephemeris Refinement and Monitoring Survey (TERMS). The RV measurements from Keck-HIRES reduce the predicted transit time uncertainty to 20 minutes, an order of magnitude improvement over the ephemeris from the discovery paper. We photometrically monitored a predicted transit window under relatively poor photometric conditions, from which our non-detection does not rule out a transiting geometry. We also present photometry that demonstrates stability at the millimag level over its rotational timescale.
description: 7 pages, 4 figures, accepted for publication in ApJ
Aphylla Selys 1854
Creators: name: DeMarmels, Jurg
Publisher: name: Zenodo
Year: 1992
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Gomphidae
Aphylla

description: Aphylla Selys, 1854 Material. 1♀, Base Camp. Remarks. Dr. J. Belle. Ve1p (The Netherlands) has identified the single specimen as "¿ Aphylla near molossus, new species?" This female was flying over the leaf litter close to the forest floor, in a sunny clearing.
description: Published as part of DeMarmels, Jurg, 1992, Dragonflies (Odonata) From The Sierras Of Tapirapeco And Unturan, In The Extreme South Of Venezuela, pp. 57-78 in Acta Biologica Venezuelica 14 (1) on pages 65-66, DOI: 10.5281/zenodo.3266063
Consequences of the simultaneous formation of giant planets by the core accretion mechanism
Creators: name: Guilera, O. M.
name: Brunini, A.
name: Benvenuto, O. G.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The core accretion mechanism is presently the most widely accepted cause of the formation of giant planets. For simplicity, most models presently assume that the growth of planetary embryos occurs in isolation. We explore how the simultaneous growth of two embryos at the present locations of Jupiter and Saturn affects the outcome of planetary formation. We model planet formation on the basis of the core accretion scenario and include several key physical ingredients. We consider a protoplanetary gas disk that exponentially decays with time. For planetesimals, we allow for a distribution of sizes from 100~m to 100~km with most of the mass in the smaller objects. We include planetesimal migration as well as different profiles for the surface density $Σ$ of the disk. The core growth is computed in the framework of the oligarchic growth regime and includes the viscous enhancement of the planetesimal capture cross-section. Planet migration is ignored. By comparing calculations assuming formation of embryos in isolation to calculations with simultaneous embryo growth, we find that the growth of one embryo generally significantly affects the other. This occurs in spite of the feeding zones of each planet never overlapping. The results may be classified as a function of the gas surface density profile $Σ$: if $Σ\propto r^{-3/2}$ and the protoplanetary disk is rather massive, Jupiter's formation inhibits the growth of Saturn. If $Σ\propto r^{-1}$ isolated and simultaneous formation lead to very similar outcomes; in the the case of $Σ\propto r^{-1/2}$ Saturn grows faster and induces a density wave that later acclerates the formation of Jupiter. Our results indicate that the simultaneous growth of several embryos impacts the final outcome and should be taken into account by planet formation models.
description: Accepted for publication in Astronomy and Astrophysics
Additional file 2 of Potential role of intestinal microflora in disease progression among patients with different stages of Hepatitis B
Creators: name: Yang, Xiu-An
name: Lv, Fengchun
name: Wang, Ran
name: Chang, Yange
name: Zhao, Yiming
name: Cui, Xinyu
name: Li, Haochen
name: Yang, Sixi
name: Li, Suting
name: Zhao, Xuemin
name: Mo, Zhishuo
name: Yang, Fang
Publisher: name: figshare
Year: 2020
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified

description: Additional file 2: Table S2. Discriminatory function built using seven indexes.
Robustness of the magnetoresistance of nanoparticle arrays
Creators: name: Estevez, V.
name: Bascones, E.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Recent work has found that the interplay between spin accumulation and Coulomb blockade in nanoparticle arrays results in peaky I-V and tunneling magnetoresistance (TMR) curves and in huge values of the TMR. We analyze how these effects are influenced by a polarization asymmetry of the electrodes, the dimensionality of the array, the temperature, resistance or charge disorder and long-range interactions. We show that the magnitude and voltage dependence of the TMR does not change with the dimensionality of the array or the presence of junction resistance disorder. A different polarization in the electrodes modifies the peak shape in the I-V and TMR curves but not their order of magnitude. Increasing the temperature or length of the interaction reduces to some extent the size of the peaks, being the reduction due to long-range interactions smaller in longer arrays. Charge disorder should be avoided to observe large TMR values.
description: 8 pages, 8 figures
Archaeogomphus nanus Needham. 1944
Creators: name: DeMarmels, Jurg
Publisher: name: Zenodo
Year: 1992
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Gomphidae
Archaeogomphus
Archaeogomphus nanus

description: Archaeogomphus nanus Needham. 1944 Material. 1♂. Siapa 2. Remarks. The teneral specimen was captured close to the river bank. on its maiden flight. but the exuviae could not be found.
description: Published as part of DeMarmels, Jurg, 1992, Dragonflies (Odonata) From The Sierras Of Tapirapeco And Unturan, In The Extreme South Of Venezuela, pp. 57-78 in Acta Biologica Venezuelica 14 (1) on page 66, DOI: 10.5281/zenodo.3266063
Phyllogomphoides major Belle. 1984
Creators: name: DeMarmels, Jurg
Publisher: name: Zenodo
Year: 1992
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Gomphidae
Phyllogomphoides
Phyllogomphoides major

description: Phyllogomphoides major Belle. 1984 Material. 2♂. upper Rio Mavaca (S of Base Camp). Remarks. The species was common also on the Siapa. Other Gomphids were also seen. but none could be secured.
description: Published as part of DeMarmels, Jurg, 1992, Dragonflies (Odonata) From The Sierras Of Tapirapeco And Unturan, In The Extreme South Of Venezuela, pp. 57-78 in Acta Biologica Venezuelica 14 (1) on page 66, DOI: 10.5281/zenodo.3266063
First-principles investigation of graphene fluoride and graphane
Creators: name: Leenaerts, O.
name: Peelaers, H.
name: Hernandez-Nieves, A. D.
name: Partoens, B.
name: Peeters, F. M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Different stoichiometric configurations of graphane and graphene fluoride are investigated within density functional theory. Their structural and electronic properties are compared, and we indicate the similarities and differences among the various configurations. Large differences between graphane and graphene fluoride are found that are caused by the presence of charges on the fluorine atoms. A new configuration that is more stable than the boat configuration is predicted for graphene fluoride. We also perform GW calculations for the electronic band gap of both graphene derivatives. These band gaps and also the calculated Young's moduli are at variance with available experimental data. This might indicate that the experimental samples contain a large number of defects or are only partially covered with H or F.
description: 6 pages, 3 figures, submitted to PRB
Antiferromagnetic Spin Fluctuations and Unconventional Nodeless Superconductivity in an Iron-based New Superconductor (Ca_4Al_2O_{6-y})(Fe_2As_2):75As-NQR Study
Creators: name: Kinouchi, H.
name: Mukuda, H.
name: Yashima, M.
name: Kitaoka, Y.
name: Shirage, P. M.
name: Eisaki, H.
name: Iyo, A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We report 75As-nuclear quadrupole resonance (NQR) studies on (Ca_4Al_2O_{6-y})(Fe_2As_2) with Tc=27K, which unravel unique normal-state properties and point to unconventional nodeless superconductivity (SC). Measurement of nuclear-spin-relaxation rate 1/T_1 has revealed a significant development of two dimensional (2D) antiferromagnetic (AFM) spin fluctuations down to Tc, in association with the fact that FeAs layers with the smallest As-Fe-As bond angle are well separated by thick perovskite-type blocking layer. Below Tc, the temperature dependence of 1/T_1 without any trace of the coherence peak is well accounted for by an s(+-)-wave multiple gaps model. From the fact that Tc=27K in this compound is comparable to Tc=28K in the optimally-doped LaFeAsO_{1-y} in which AFM spin fluctuations are not dominant, we remark that AFM spin fluctuations are not a unique factor for enhancing Tc among existing Fe-based superconductors, but a condition for optimizing SC should be addressed from the lattice structure point of view.
description: 4pages, 4figures, accepted for publication in Phys. Rev. Lett
Correction: A robust iron catalyst for the selective hydrogenation of substituted (iso)quinolones
Creators: name: Sahoo, Basudev
name: Kreyenschulte, Carsten
name: Agostini, Giovanni
name: Lund, Henrik
name: Bachmann, Stephan
name: Scalone, Michelangelo
name: Junge, Kathrin
name: Beller, Matthias
Publisher: name: Cambridge : RSC
Year: 2018
Subjects: subject: 540

description: The authors regret that the term “(iso)quinolones” was used throughout the article, including the title, when the correct term should be “(iso)quinolines”. The Royal Society of Chemistry apologises for these errors and any consequent inconvenience to authors and readers.
Indirect tests of the Randall-Sundrum model
Creators: name: Casagrande, Sandro
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: I present phenomenological implications of the Randall-Sundrum model for indirect searches, specifically a selection of flavor observables and Higgs-related collider searches. I review the interplay of constraints from CP violation in flavor physics, possible effects in rare decays, and model-specific protection mechanisms. Deviations in the Higgs couplings to fermions and, at one-loop, to gluons are unexpectedly strong and lead to strong modifications in Higgs searches.
description: 8 pages, 6 figures; Talk given at Discrete '10: Symposium on Prospects in the Physics of Discrete Symmetries, Rome, Italy, 6-11 Dec 2010
Applying ethnographic methodologies & ecology to unveil dimensions of sleep problems in children & youth with neurodevelopmental conditions
Creators: name: Ipsiroglu, Osman S.
Publisher: name: University of British Columbia
Year: 2016

description: Willis Ekbom disease/restless legs syndrome is a relatively well-known neurological disorder in adult and paediatric medicine; however, the possibility of its presentation as familial early onset chronic intractable insomnia has not yet been recognized. I investigated the possible causes of intractable insomnia in children and youth with neurodevelopmental conditions. Through my studies of medical anthropology and educational psychology, I learned to apply qualitative methodologies in my clinical explorations, namely: a) ethnographic exploration of the ecology of paediatric intractable insomnia; b) the operationalization of this ethnographic exploration as a therapeutic emplotment concept in clinical practice, and c) the creation of new methodological tests and tools for structured behavioural observations as further development of the therapeutic emplotment concept. Application of these concepts led to the development of a functional sleep and wake-behaviours assessment model. This model exceeds the current clinical practice of categorical sleep and/or wake diagnoses and the predominantly daytime-focused explanatory models of developmental paediatrics, child psychiatry and mental health. My research has privileged me with becoming the first physician to identify Willis Ekbom disease/restless legs syndrome in children with neurodevelopmental conditions, who suffer from early onset chronic intractable insomnia, in a methodologically reproducible way. This research also enabled me to demonstrate that unrecognized Willis Ekbom disease/restless legs syndrome leads to cascades of medical diagnoses and medication prescriptions causing iatrogenic harm. Weaning children off medications and increasing their wellbeing and performance after addressing their sleep problems became the proof of concept. The Willis Ekbom disease/restless legs syndrome story in children with neurodevelopmental conditions is a modern parable, illustrating how conventional categorical diagnoses with overemphasis on daytime behaviours can produce systemic gaps in healthcare. While conventional medicine facilitates a spectrum of diagnoses that are applied based on training culture, symptoms that are not in alignment with the standard repertoire are not recognized and diagnoses are missed. Understanding this parable and finding applicable answers for how such systemic errors can be avoided in mainstream medicine in the future has taken me seven years, and is still a work in progress.
Additional file 4 of Downregulation of lncRNA ZNF582-AS1 due to DNA hypermethylation promotes clear cell renal cell carcinoma growth and metastasis by regulating the N(6)-methyladenosine modification of MT-RNR1
Creators: name: Yang, Wuping
name: Zhang, Kenan
name: Li, Lei
name: Xu, Yawei
name: Ma, Kaifang
name: Xie, Haibiao
name: Zhou, Jingcheng
name: Cai, Lin
name: Gong, Yanqing
name: Gong, Kan
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 4: Figure S3. The prognostic roles of the methylation levels of ZNF582-AS1 CpG sites in ccRCC patients. (a) The association between the methylation levels of ZNF582-AS1 CpG sites and OS (n = 317). (b) The association between the methylation levels of ZNF582-AS1 CpG sites and DFS (n = 280). According to the median cutoff of the methylation levels of CpG sites, patients were divided into two groups for survival analysis.
Limits on Dark Radiation, Early Dark Energy, and Relativistic Degrees of Freedom
Creators: name: Calabrese, Erminia
name: Huterer, Dragan
name: Linder, Eric V.
name: Melchiorri, Alessandro
name: Pagano, Luca
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Recent cosmological data analyses hint at the presence of an extra relativistic energy component in the early universe. This component is often parametrized as an excess of the effective neutrino number N_{eff} over the standard value of 3.046. The excess relativistic energy could be an indication for an extra (sterile) neutrino, but early dark energy and barotropic dark energy also contribute to the relativistic degrees of freedom. We examine the capabilities of current and future data to constrain and discriminate between these explanations, and to detect the early dark energy density associated with them. We found that while early dark energy does not alter the current constraints on N_{eff}, a dark radiation component, such as that provided by barotropic dark energy models, can substantially change current constraints on N_{eff}, bringing its value back to agreement with the theoretical prediction. Both dark energy models also have implications for the primordial mass fraction of Helium Y_p and the scalar perturbation index n_s. The ongoing Planck satellite mission will be able to further discriminate between sterile neutrinos and early dark energy.
description: 10 pages, 7 figures
Neocordulia biancoi Racenis. 1970
Creators: name: DeMarmels, Jurg
Publisher: name: Zenodo
Year: 1992
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Corduliidae
Neocordulia
Neocordulia biancoi

description: Neocordulia biancoi Racenis. 1970 Material. 5 ultimate instar larvae. Tamacuari. Remarks. Larvae. mostly of advanced instars. were common in the forest creek at the Tamacuari. Numerous larvae. albeit of younger instars. were found also at Unturan. Many were brought down to the Base Camp alive. but died soon after. wards. Adults were not seen.
description: Published as part of DeMarmels, Jurg, 1992, Dragonflies (Odonata) From The Sierras Of Tapirapeco And Unturan, In The Extreme South Of Venezuela, pp. 57-78 in Acta Biologica Venezuelica 14 (1) on page 66, DOI: 10.5281/zenodo.3266063
Copolymerization of CO2 and epoxides mediated by zinc organyls
Creators: name: Wulf, Christoph
name: Doering, Ulrike
name: Werner, Thomas
Publisher: name: London : RSC Publishing
Year: 2018
Subjects: subject: Co catalysts
subject: Cyclic carbonates
subject: Efficient catalysts
subject: Reaction conditions
subject: Styrene oxide
subject: 540

description: Herein we report the copolymerization of CHO with CO2 in the presence of various zinc compounds R2Zn (R = Et, Bu, iPr, Cy and Ph). Several zinc organyls proved to be efficient catalysts for this reaction in the absence of water and co-catalyst. Notably, readily available Bu2Zn reached a TON up to 269 and an initial TOF up to 91 h-1. The effect of various parameters on the reaction outcome has been investigated. Poly(ether)carbonates with molecular weights up to 79.3 kg mol-1 and a CO2 content of up to 97% were obtained. Under standard reaction conditions (100 °C, 2.0 MPa, 16 h) the influence of commonly employed co-catalysts such as PPNCl and TBAB has been investigated in the presence of Et2Zn (0.5 mol%). The reaction of other epoxides (e.g. propylene and styrene oxide) under these conditions led to no significant conversion or to the formation of the respective cyclic carbonate as the main product.
Microglial dysfunction induced by mutant huntingtin
Creators: name: Connolly, Colúm
Publisher: name: University of British Columbia
Year: 2016

description: Huntington’s disease (HD) is a devastating, late-onset neurodegenerative disorder that causes profound behavioral abnormalities, language impairment, and alterations in personality in affected patients. HD is an autosomal dominantly inherited disease, caused by a CAG trinucleotide repeat expansion in the huntingtin gene. HD effects up to 1 in 10,000 in populations of European ancestry, but with at least a 10 fold reduced prevalence rate in individuals in Asian or African descent. The critical mechanisms by which the expansion in the huntingtin gene leads to selective neurodegeneration in HD are poorly understood. The purpose of this thesis was to better understand the microglial dysfunction caused by mutant huntingtin and the potential role this microglial dysfunction may play in the pathogenesis of HD. Huntingtin, the protein (HTT) expressed from the huntingtin gene, is ubiquitously expressed in many tissues, with the highest expression levels in brain and testis. Over the last 20 years there have been multiple scientific breakthroughs allowing the development of an array of model systems to investigate HD pathogenesis. Immune dysfunction has recently been implicated in a number of neurodegenerative diseases, including HD. In conclusion, the mechanism of neurodegeneration is not well understood in HD, inflammation could play a pivotal role in the progression of the disease. Inflammation is altered in immune cells containing mutant HTT (mHTT), and although I was unable to provide conclusive evidence that mHTT-induced microglial dysfunction and related neuroinflammation are required for neurodegeneration in an HD mouse model, my work highlights the importance of critically evaluating proposed new disease mechanisms as many will not be directly involved in HD neurodegeneration. My research provides concrete evidence that immune dysfunction occurs in monocyte cells expressing mHTT, however, this cell intrinsic dysfunction does not play a major role in the HD phenotype of the BACHD mouse model.
Shining Light on Merging Galaxies I: The Ongoing Merger of a Quasar with a `Green Valley' Galaxy
Creators: name: da Silva, Robert L.
name: Prochaska, J. Xavier
name: Rosario, David
name: Tumlinson, Jason
name: Tripp, Todd M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Serendipitous observations of a pair z = 0.37 interacting galaxies (one hosting a quasar) show a massive gaseous bridge of material connecting the two objects. This bridge is photoionized by the quasar (QSO) revealing gas along the entire projected 38 kpc sightline connecting the two galaxies. The emission lines that result give an unprecedented opportunity to study the merger process at this redshift. We determine the kinematics, ionization parameter (log U ~ -2.5 +- 0.03), column density (N_H ~ 10^{21} cm^{-2}), metallicity ([M/H] ~ -0.20 +- 0.15), and mass (~ 10^8 Msun) of the gaseous bridge. We simultaneously constrain properties of the QSO-host (M_DM>8.8x 10^{11} Msun) and its companion galaxy (M_DM>2.1 x 10^{11} Msun; M_star ~ 2 x 10^{10} Msun; stellar burst age=300-800 Myr; SFR~6 Msun/yr; and metallicity 12+log (O/H)= 8.64 +- 0.2). The general properties of this system match the standard paradigm of a galaxy-galaxy merger caught between first and second passage while one of the galaxies hosts an active quasar. The companion galaxy lies in the so-called `green valley', with a stellar population consistent with a recent starburst triggered during the first passage of the merger and has no detectable AGN activity. In addition to providing case-studies of quasars associated with galaxy mergers, quasar/galaxy pairs with QSO-photoionized tidal bridges such as this one offer unique insights into the galaxy properties while also distinguishing an important and inadequately understood phase of galaxy evolution.
description: 23 pages, 12 figures, 5 tables, Submitted to ApJ, revised to address referee's comments
Integrated Stellar Populations: Confronting Photometry with Spectroscopy
Creators: name: MacArthur, Lauren A.
name: McDonald, Michael
name: Courteau, Stephane
name: Gonzalez, J. Jesus
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We investigate the ability of spectroscopic techniques to yield realistic star formation histories (SFHs) for the bulges of spiral galaxies based on a comparison with their observed broadband colors. Full spectrum fitting to optical spectra indicates that recent (within ~1 Gyr) star formation activity can contribute significantly to the V-band flux, whilst accounting for only a minor fraction of the stellar mass budget which is made up primarily of old stars. Furthermore, recent implementations of stellar population (SP) models reveal that the inclusion of a more complete treatment of the thermally pulsating asymptotic giant branch (TP-AGB) phase to SP models greatly increases the NIR flux for SPs of ages 0.2-2 Gyr. Comparing the optical--NIR colors predicted from population synthesis fitting, using models which do not include all stages of the TP-AGB phase, to the observed colors reveals that observed optical--NIR colors are too red compared to the model predictions. However, when a 1 Gyr SP from models including a full treatment the TP-AGB phase is used, the observed and predicted colors are in good agreement. This has strong implications for the interpretation of stellar populations, dust content, and SFHs derived from colors alone.
description: 6 pages, 6 figures, accepted for publication in the Astrophysical Journal
Electronic Structure Calculation by First Principles for Strongly Correlated Electron Systems
Creators: name: Imada, Masatoshi
name: Miyake, Takashi
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Recent trends of ab initio studies and progress in methodologies for electronic structure calculations of strongly correlated electron systems are discussed. The interest for developing efficient methods is motivated by recent discoveries and characterizations of strongly correlated electron materials and by requirements for understanding mechanisms of intriguing phenomena beyond a single-particle picture. A three-stage scheme is developed as renormalized multi-scale solvers (RMS) utilizing the hierarchical electronic structure in the energy space. It provides us with an ab initio downfolding of the global band structure into low-energy effective models followed by low-energy solvers for the models. The RMS method is illustrated with examples of several materials. In particular, we overview cases such as dynamics of semiconductors, transition metals and its compounds including iron-based superconductors and perovskite oxides, as well as organic conductors of kappa-ET type.
description: 44 pages including 38 figures, to appear in J. Phys. Soc. Jpn. as an invited review paper
LEADERSHIP THEORIES AND AGAPE LEADERSHIP: AN EXPLORATION THROUGH THE LIFE OF JESUS CHRIST
Creators: name: Sojan Paul Peekunnel
name: Vijayalaya Srinivas
Publisher: name: Zenodo
Year: 2023
Subjects: Leader, Leadership, Agape, Selflessness, Jesus Christ.

description: Abstract
The concept of leadership is, to a certain extent, polymorphic in nature. Despite the attention it has garnered in empirical studies, theoretical work, books, and popular press articles, our understanding of leadership remains incomplete. Questions such as who a leader is, who can lead, or how a leader should be elicit varied responses depending on the perspective of the respondent. The multitude of explanations and definitions further complicates the matter. This article aims to elucidate the idea of leadership through the lens of Agape, a concept rooted in selflessness. To illustrate this, the life of Jesus Christ is chosen as an exemplary case. Jesus, as a leader, epitomized selfless love throughout his entire life. Leadership based on Agape is characterized by a selflessness that compels a leader to forget about personal concerns and dedicate themselves to the well-being of others. Such leaders steadfastly endure struggles and troubles for the betterment of humanity or society at large. Agape, derived from the Greek word for love, is often associated with the unconditional love emphasized in Christian teachings. Examining the importance of Agape in leadership, Jesus serves as the prime exemplar. His leadership was not driven by personal gain; rather, his entire existence was devoted to the welfare of the poor, sick, downtrodden, and marginalized members of society. Leaders practicing Agape leadership possess a keen awareness of the emotional needs of others and excel in creating an environment where everyone feels valued and supported. Jesus, through his indomitable spirit of selfless love, exemplified Agape leadership. This article delves into the exploration of Agape leadership through the life of Jesus Christ.
Unravelling the atomic structure of a metal-covalent organic framework assembled from ruthenium metalloligands
Creators: name: Hennessey, Seán
name: González-Gómez, Roberto
name: Arisnabarreta, Nicolás
name: Ciotti, Anna
name: Hou, Jing
name: Tarakina, Nadezda V.
name: Bezrukov, Andrey
name: Mali, Kunal S.
name: Zaworotko, Michael
name: Feyter, Steven De
name: García-Melchor, Max
name: Farràs, Pau
Publisher: name: University of Limerick
Year: 2025
Subjects: classificationCode: 34
subject: Chemical sciences
subject: FOS: Chemical sciences

description: Covalent and metal-organic frameworks (COFs and MOFs) have shown great promise in light-driven processes mainly due to their ligand-to-metal charge-separation properties, as well as having access to a diverse range of photoactive metalloligands and organic linkers. However, both frameworks present individual drawbacks that can potentially be avoided by combining both systems (metal and covalent) to produce metal-covalent organic frameworks (MCOFs), exhibiting the advantages of both material types. Yet, due to their poor crystallinity, the understanding of the structure-properties relation of MCOFs remains unclear. Herein, we report photoactive linkers in the form of a [Ru(tpy)2] 2+ (tpy: 2,2′,6,2″-terpyridine) complex which covalently binds to a luminescent pyrene core to yield a new, photoactive Schiff-base MCOF. The structure, thermal, electronic, and optical properties of this novel material have been exhaustively characterized by a wide range of microscopy, spectroscopic, and computational methods. This combined experimental and computational work represents a significant step toward the fundamental understanding of the photoactive units within the framework, their hierarchical arrangement and interactions with substrates, which is essential for the future design of efficient photocatalytic materials.
Enhanced rise of rogue waves in slant wave groups
Creators: name: Ruban, V. P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: Numerical simulations of fully nonlinear equations of motion for long-crested waves at deep water demonstrate that in elongate wave groups the formation of extreme waves occurs most intensively if in an initial state the wave fronts are oriented obliquely to the direction of the group. An "optimal" angle, resulting in the highest rogue waves, depends on initial wave amplitude and group width, and it is about 18-28 degrees in a practically important range of parameters.
description: revtex4, 4 pages, 8 figures, minor corrections, additional numerical results included
Product transportation strategy in the presence of limited shipment capacity and purchase timing
Creators: name: Zhang, Cheng
name: Yang, Feng
name: Shan, Feifei
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Neuroscience
subject: Pharmacology
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Computational Biology

description: In maritime practice, shippers can order shipment capacity before knowing product demand and then transport those products via liner shipping (LS) after observing demand information, or shippers can transport them when needed via tramp shipping (TS) without pre-ordering shipment. We develop a game-theoretic model to analyse these two transportation modes, LS and TS, in the presence or absence of demand and supply shocks such as those occurring in a pandemic. Interestingly, when vessels have a sufficiently small shipment capacity, the shipper prefers LS (TS) when market uncertainty is high (low) if the following is true: (a) the market size is moderate and there are no such shocks, or (b) the market is not sufficiently large in the case of shocks. This conclusion contradicts the naïve belief that the shipper prefers LS (TS) in the case of low (high) market uncertainty. Additionally, when the market is sufficiently large, the shipper prefers TS only if dead freight rate is low and the tramp vessel’s shipment capacity is moderately greater than that of LS. It follows that, due to high freight charges or low profit, the TS mode may not be the shipper’s best choice, even if the transportation demand is very large.
Self-reliance or dependence? patterns of information technology use on innovation performance
Creators: name: Hu, Miao
name: Wang, Kedi
name: Jiang, Shenyang
name: Huo, Baofeng
name: Yeung, Andy C. L.
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Biochemistry
subject: Space Science
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: The association between information technology (IT) and firms’ innovation performance remains underexplored within the current Operations Management literature. We attempt to address this void by exploring how patterns of IT use (exploration and exploitation) influence innovation performance. We also introduce distinct types of supply chain (SC) innovation strategies, and explore how internal, external, and ambidextrous (balanced and combined) innovation strategies moderate the relationship. Drawing upon the dynamic capability view, we consider patterns of IT use as firms’ dynamic capabilities that can foster innovation performance, and regard SC innovation strategy as organisational paths that may influence the effectiveness of IT use. We empirically examine the relationship using data from 995 manufacturing firms featured in the World Bank China Enterprise Survey. We find IT exploitation and exploration positively influence innovation performance. Additionally, the internal innovation strategy can amplify the positive effect of IT exploitation, while exerting a non-significant moderating effect on IT exploration. Interestingly, the positive impacts of both IT use patterns on innovation are weakened when firms adopt external and ambidextrous innovation strategies. Our study contributes to a deeper comprehension of the relationship among IT use, SC innovation strategies, and firms’ innovation performance based on a dynamic capability view.
Matrix factorizations from SYZ transformations
Creators: name: Chan, Kwokwai
name: Leung, Naichung Conan
Publisher: name: arXiv
Year: 2010
Subjects: subject: Symplectic Geometry (math.SG)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: It is known that Lagrangian torus fibers of the moment map of a toric Fano manifold $X$, equipped with flat $U(1)$-connections, are mirror to matrix factorizations of the mirror superpotential $W:\check{X}\rightarrow\bC$. Via SYZ mirror transformations, we describe how this correspondence, when $X$ is $\bP^1$ or $\bP^2$, can be explained in a geometric way.
description: 20 pages. Dedicated to Prof. S.-T. Yau on the occasion of his 60th birthday
The Functional Renormalization Group for Zero-Dimensional Quantum Systems in and out of Equilibrium
Creators: name: Karrasch, C.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study transport properties of quantum impurity systems using the functional renormalization group. The latter is an RG-based diagrammatic tool to treat Coulomb interactions in a fast and flexible way. Prior applications, which employed a simple first-order (Hartree-Fock-like) scheme to truncate the FRG flow equations within the Matsubara formalism, succeeded in accurately describing linear transport of various quantum dot geometries at zero temperature T=0. In a nutshell, advance in this Thesis is three-fold. First, we introduce a frequency-dependent second-order approximation in order to eventually compute finite-energy properties such as the conductance at T>0 (mainly focusing on the single impurity Anderson model). Second, a generalisation of the Hartree-Fock-like approach to Keldysh space allows for addressing the non-equilibrium steady-state dynamics of the interacting resonant level model. Third, we investigate the physics of a quantum dot Josephson junction as well as the charging of a single narrow level using the first-order scheme.
description: Summary only - for the complete Thesis please go to http://www.theorie.physik.uni-goettingen.de/~karrasch/publications/thesis_karrasch.pdf
Shifting the ownership paradigm in the built environment : a regenerative approach to ownership and appropriation
Creators: name: Velasco Fuentes, Carlos Felipe
Publisher: name: University of British Columbia
Year: 2016

description: The future of building design may need to go beyond ‘green’ and ‘sustainable’ design approaches if it is to reverse the negative environmental effects of human development and urbanization. Regenerative development is an approach to building design that aims to enhance, rather than diminish, the social-ecological systems in which it is embedded by establishing ongoing mutually beneficial relations between humans and nature. This approach is deeply founded on an ecological (i.e., biocentric) worldview and, amongst other key concepts, considers the built environment as a network of complex interconnected and interdependent social-ecological systems. When considering interactions amongst social-ecological systems in the built environment, the notion of resource exchange is fundamental, and with it, a rethinking of the social institutions that influence and/or determine how resource is exchanged – including the concept of ownership. Notions such as ownership, property, and appropriation are social constructs that influence human interactions and the way they relate to their natural environment. Many suggest the reason why standardized governance institutions fail to adequately address today’s major social and environmental challenges in modern industrialized societies is perhaps related to a mechanistic (i.e., anthropocentric) view of the world. In this worldview, the complexity embedded in the concept of ownership is often reduced to its economic understanding. An alternate anthropological conceptualization focuses on evolving human and natural property relations, and holds important intellectual value for the design of regenerative building systems. The objective of this thesis is to develop greater understanding to the role of ownership in the built environment, and particularly in the design of regenerative building systems and the advance towards regenerative sustainability in social-ecological systems. This thesis explores the institutional ownership framework and socio-ecological conditions that enabled the realization of the Centre for Interactive Research in Sustainability, a relevant example of a building project incorporating regenerative development principles located at the University of British Columbia. Results suggest that a shift towards a ‘relational’ ownership paradigm in the built environment will require a set of institutional, methodological, practical and value-based adaptations, resulting in fundamental changes to a building’s project boundaries, connectivity, and potential for resource exchange.
Semi-microscopic model of pairing in nuclei
Creators: name: Pankratov, S. S.
name: Zverev, M. V.
name: Baldo, M.
name: Lombardo, U.
name: Saperstein, E. E.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A semi-microscopic model for nucleon pairing in nuclei is presented starting from the ab intio BCS gap equation with Argonne v18 force and the self-consistent Energy Density Functional Method basis characterized with the bare nucleon mass. The BCS theory is formulated in terms of the model space S0 with the effective pairing interaction calculated from the first principles in the subsidiary space S0. This effective interaction is supplemented with a small phenomenological addendum containing one phenomenological parameter universal for all medium and heavy atomic nuclei. We consider the latter as a phenomenological way to take into account both the many-body corrections to the BCS theory and the effective mass effects. For protons, the Coulomb interaction is introduced directly. Calculations made for several isotopic and isotonic chains of semi-magic nuclei confirm the validity of the model. The role of the self-consistent basis is stressed.
description: 22 pages, 9 figures, 3 tables
Decay properties of the heavy-light mesons
Creators: name: Matsuki, Takayuki
name: Seo, Koichi
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the decay properties of a heavy-light meson. We reformulate the decay amplitudes for the heavy-light systems and find a new way to calculate decay rates. Applying this formulation, we find a new sum rule for the radiative decays of one heavy-light meson into another, $H_1\to H_2+γ$ with various combinations of $H_i$.
description: an invited talk at "New Frontiers in QCD 2010" held at Kyoto
Diastatops pullata Burmeister. 1839
Creators: name: DeMarmels, Jurg
Publisher: name: Zenodo
Year: 1992
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Libellulidae
Diastatops
Diastatops pullata

description: Diastatops pullata (Burmeister. 1839) Material. 1♂. Siapa 1.
description: Published as part of DeMarmels, Jurg, 1992, Dragonflies (Odonata) From The Sierras Of Tapirapeco And Unturan, In The Extreme South Of Venezuela, pp. 57-78 in Acta Biologica Venezuelica 14 (1) on page 66, DOI: 10.5281/zenodo.3266063
Carbon nanotubes adhesion and nanomechanical behavior from peeling force spectroscopy
Creators: name: Buchoux, Julien
name: Bellon, Ludovic
name: Marsaudon, Sophie
name: Aimé, Jean-Pierre
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Applications based on Single Walled Carbon Nanotube (SWNT) are good example of the great need to continuously develop metrology methods in the field of nanotechnology. Contact and interface properties are key parameters that determine the efficiency of SWNT functionalized nanomaterials and nanodevices. In this work we have taken advantage of a good control of the SWNT growth processes at an atomic force microscope (AFM) tip apex and the use of a low noise (1E-13 m/rtHz) AFM to investigate the mechanical behavior of a SWNT touching a surface. By simultaneously recording static and dynamic properties of SWNT, we show that the contact corresponds to a peeling geometry, and extract quantities such as adhesion energy per unit length, curvature and bending rigidity of the nanotube. A complete picture of the local shape of the SWNT and its mechanical behavior is provided.
Additional file 2 of Whole genome sequence of a non-toxigenic Corynebacterium diphtheriae strain from a hospital in southeastern China
Creators: name: Li, Guogang
name: Wang, Sipei
name: Zhao, Sheng
name: Zhou, Yangxiao
name: Pan, Xinling
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Evolutionary Biology
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology

description: Additional file 2. The accession number information of 26 whole genome sequences involved in this study.