cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Experimental and Computational Evaluation of Syringic Acid – Structural, Spectroscopic, Biological Activity and Docking Simulation
Creators: name: Zochedh, Azar
name: Priya, Mohana
name: Chakaravarthy, Cibe
name: Sultan, Asath Bahadur
name: Kathiresan, Thandavarayan
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer

description: The single crystal of syringic acid was crystallized by slow evaporation technique and characterized using XRD, FTIR, FT-Raman, and UV-Vis spectroscopy. XRD confirms the crystalline structure as centrosymmetric monoclinic with C2/c space group. The functional groups identified by FTIR and FT Raman studies and by UV-Vis give the cut off wavelength as 276 nm. Quantum chemical calculations were performed using density functional theory. The computed and experimental vibrational wavenumbers were assigned and compared. Frontier molecular orbital research reveals the reactivity and kinetic stability of the molecule. The molecule’s reactive site is further confirmed by the Mulliken atomic charge distribution and molecular electrostatic potential surface analysis. The molecule’s absorption spectra were computed in the liquid phase (ethanol), by TD-DFT with the same basic set, which established a π to π* electronic transition and was comparable to the observed UV-Vis spectrum. The Hirshfeld analysis was used to determine the effectiveness of interactions between distinct atoms as well as their contribution. The O…H and H…H contributions are highest due to the intermolecular hydrogen bonding. The natural bond orbital analysis demonstrates the molecule’s bioactivity. The biological activity such as anti-bacterial, antioxidant and anti-cancer has been evaluated through disk diffusion, DDPH assay and molecular docking method. The zone of inhibition was clearly observed on gram-positive and gram-negative bacterium that showed the anti-bacterial property of syringic acid. The syringic acid prevents breast cancer, according to molecular docking research. Seven different types of breast cancer proteins based on different mechanisms were utilized to test the syringic acid molecule’s docking efficiency, and it was revealed that PR and HER-2 have the highest docking scores with −7.7Kcal/mol. In addition, to better understand the safety profile of syringic acid, physicochemical and pharmacokinetic properties were investigated.
Supplementary Text S1 and Figure S1 from A signature of dynamic biogeography: enclaves indicate past species replacement
Creators: name: B. Wielstra
name: T. Burke
name: R. K. Butlin
name: J. W. Arntzen
Publisher: name: The Royal Society
Year: 2017
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences

description: Supplementary Text S1 and Figure S1
Supplementary Information 1 from Convergence and divergence in gesture repertoires as an adaptive mechanism for social bonding in primates.
Creators: name: Roberts, Anna Ilona
name: Roberts, Sam George Bradley
Publisher: name: The Royal Society
Year: 2017
Subjects: subject: 60801 Animal Behaviour
subject: FOS: Biological sciences

description: Supplementary Information 1 contains example of how behavioural measures for networks were calculated, categorization of attributes used in social network analyses, classification of gesture types according to modality and additional analyses that expand on the findings reported in the main results section of the paper.
Seasonal Climate Variation and Caribou Availability: Modeling Sequential Movement Using Satellite-Relocation Data
Creators: name: Russell, Don
name: Kofinas, Gary P.
name: Thor West, Colin
name: Griffith, Brad
name: Nicolson, Craig
name: Berman, Matthew
name: Dugan, Darcy
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: ABSTRACT. Livelihood systems that depend on mobile resources must constantly adapt to change. For people living in permanent settlements, environmental changes that affect the distribution of a migratory species may reduce the availability of a primary food source, with the potential to destabilize the regional social-ecological system. Food security for Arctic indigenous peoples harvesting barren ground caribou (Rangifer tarandus granti) depends on movement patterns of migratory herds. Quantitative assessments of physical, ecological, and social effects on caribou distribution have proven difficult because of the significant interannual variability in seasonal caribou movement patterns. We developed and evaluated a modeling approach for simulating the distribution of a migratory herd throughout its annual cycle over a multiyear period. Beginning with spatial and temporal scales developed in previous studies of the Porcupine Caribou Herd of Canada and Alaska, we used satellite collar locations to compute and analyze season-by-season probabilities of movement of animals between habitat zones under two alternative weather conditions for each season. We then built a set of transition matrices from these movement probabilities, and simulated the sequence of movements across the landscape as a Markov process driven by externally imposed seasonal weather states. Statistical tests showed that the predicted distributions of caribou were consistent with observed distributions, and significantly correlated with subsistence harvest levels for three user communities. Our approach could be applied to other caribou herds and could be adapted for simulating the distribution of other ungulates and species with similarly large interannual variability in the use of their range.
(2921) Edith Pinder
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
(2923) Joseph Martin
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Supplementary Information 8 from Convergence and divergence in gesture repertoires as an adaptive mechanism for social bonding in primates
Creators: name: Roberts, Anna Ilona
name: Roberts, Sam George Bradley
Publisher: name: The Royal Society
Year: 2017
Subjects: subject: 60801 Animal Behaviour
subject: FOS: Biological sciences

description: Supplementary Information 8 contains data used in GLMM models in regards of audience size of same and different age partners as the signaller, and same and opposite sex partners as the signaller
High-Eccentricity Migration with Disk-Induced Spin-Orbit Misalignment: a Preference for Perpendicular Hot Jupiters
Creators: name: Vick, Michelle
name: Su, Yubo
name: Lai, Dong
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: High-eccentricity migration is a likely formation mechanism for many observed hot Jupiters, particularly those with a large misalignment between the stellar spin axis and orbital angular momentum axis of the planet. In one version of high-eccentricity migration, an inclined stellar companion excites von Zeipel-Lidov-Kozai (ZLK) eccentricity oscillations of a cold Jupiter, and tidal dissipation causes the planet's orbit to shrink and circularize. Throughout this process, the stellar spin can evolve chaotically, resulting in highly misaligned hot Jupiters. Previous population studies of this migration mechanism have assumed that the stellar spin is aligned with the planetary orbital angular momentum when the companion begins to induce ZLK oscillations. However, in the presence of a binary companion, the star's obliquity may be significantly excited during the dissipation of its protoplanetary disk. We calculate the stellar obliquities produced in the protoplanetary disk phase and use these to perform an updated population synthesis of ZLK-driven high-eccentricity migration. We find that the resulting obliquity distribution of HJ systems is predominantly retrograde with a broad peak near 90$^\circ$. The distribution we obtain has intriguing similarities to the recently-observed preponderance of perpendicular planets close to their host stars.
description: 12 pages, 5 figures
The Multi-Layer Variable Absorbers in NGC 1365 Revealed by XMM-Newton and NuSTAR
Creators: name: Rivers, E.
name: Risaliti, G.
name: Walton, D. J.
name: Harrison, F.
name: ArÉvalo, P.
name: Baur, F. E.
name: Boggs, S. E.
name: Brenneman, L. W.
name: Brightman, M.
name: Christensen, F. E.
name: Craig, W. W.
name: FÜrst, F.
name: Hailey, C. J.
name: Hickox, R. C.
name: Marinucci, A.
name: Reeves, J.
name: Stern, D.
name: Zhang, W. W.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Between July 2012 and February 2013, NuSTAR and XMM-Newton performed four long-look joint obser- vations of the type 1.8 Seyfert, NGC 1365. We have analyzed the variable absorption seen in these observations in order to characterize the geometry of the absorbing material. Two of the observations caught NGC 1365 in an unusually low absorption state, revealing complexity in the multi-layer absorber which had previously been hidden. We find the need for three distinct zones of neutral absorption in addition to the two zones of ionized absorption and the Compton-thick torus previously seen in this source. The most prominent absorber is likely associated with broad line region clouds with column densities of around $\sim\,$10$^{23}$ cm$^{-2}$ and a highly clumpy nature as evidenced by an occultation event in February 2013. We also find evidence of a patchy absorber with a variable column around $\sim\,10^{22}$ cm$^{-2}$ and a line of sight covering fraction of 0.3$-$0.9 which responds directly to the intrinsic source flux, possibly due to a wind geometry. A full-covering, constant absorber with a low column density of $\sim\,1 \times$ 10$^{22}$ cm$^{-2}$ is also present, though the location of this low density haze is unknown.
description: Accepted to ApJ
A mixed-methods analysis of social-ecological feedbacks between urbanization and forest persistence
Creators: name: Thill, Jean Claude
name: Shoemaker, Douglas A.
name: Dor, Todd Ben
name: Dorning, Monica A.
name: Meentemeyer, Ross K.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: We examined how social-ecological factors in the land-change decision-making process influenced neighboring decisions and trajectories of alternative landscape ecologies. We decomposed individual landowner decisions to conserve or develop forests in the rapidly growing Charlotte, North Carolina, U. S. region, exposing and quantifying the effects of forest quality, and social and cultural dynamics. We tested the hypothesis that the intrinsic value of forest resources, e. g., cultural attachment to land, influence woodland owners' propensity to sell. Data were collected from a sample of urban, nonindustrial private forest (U-NIPF) owners using an individualized survey design that spatially matched land-owner responses to the ecological and timber values of their forest stands. Cluster analysis (n = 126) revealed four woodland owner typologies with widely ranging views on the ecosystem, cultural, and historical values of their forests. Classification tree analysis revealed woodland owners' willingness to sell was characterized by nonlinear, interactive factors, including sense of place values regarding the retention of native vegetation, the size of forest holdings, their connectedness to nature, 'pressure' from surrounding development, and behavioral patterns, such as how often landowners visit their land. Several ecological values and economic factors were not found to figure in the decision to retain forests. Our study design is unique in that we address metropolitan forest persistence across urban-rural and population gradients using a unique individualized survey design that richly contextualizes survey responses. Understanding the interplay between policies and landowner behavior can also help resource managers to better manage and promote forest persistence. Given the region's paucity of policy tools to manage the type and amount of development, the mosaic of land cover the region currently enjoys is far from stable.
Supplementary Information 2 from Convergence and divergence in gesture repertoires as an adaptive mechanism for social bonding in primates.
Creators: name: Roberts, Anna Ilona
name: Roberts, Sam George Bradley
Publisher: name: The Royal Society
Year: 2017
Subjects: subject: 60801 Animal Behaviour
subject: FOS: Biological sciences

description: Supplementary Information 2 contains all of the data used in social network analyses such as matrices of individual attributes (age, sex, oestrous similarity, maternal kinship), duration of social behaviour per hour spent in the same party (e.g. joint feeding, travel, resting, grooming given, mutual, attention, proximity), gesture networks (e.g. kappa values, repertoire size of homogenenous and heterogeneous gestures, rate of gestures).
PhD thesis: SQL Comprehension and Synthesis
Creators: name: Obaido, George
Publisher: name: arXiv
Year: 2022
Subjects: subject: Databases (cs.DB)
subject: Formal Languages and Automata Theory (cs.FL)
subject: FOS: Computer and information sciences

description: Structured Query Language (SQL) remains the standard language used in Relational Database Management Systems (RDBMSs) and has found applications in healthcare (patient registries), businesses (inventories, trend analysis), military, education, etc. Although SQL statements are English-like, the process of writing SQL queries is often problematic for nontechnical end-users in the industry. Similarly, formulating and comprehending written queries can be confusing, especially for undergraduate students. One of the pivotal reasons given for these difficulties lies with the simple syntax of SQL, which is often misleading and hard to understand. An ideal solution is to present these two audiences: undergraduate students and nontechnical end-users with learning and practice tools. These tools are mostly electronic and can be used to aid their understanding, as well as enable them to write correct SQL queries. This work proposes a new approach aimed at understanding and writing correct SQL queries using principles from Formal Language and Automata Theory. We present algorithms based on: regular expressions for the recognition of simple query constructs, context-free grammars for the recognition of nested queries, and a jumping finite automaton for the synthesis of SQL queries from natural language descriptions. As proof of concept, these algorithms were further implemented into interactive software tools aimed at improving SQL comprehension. Evaluation of these tools showed that the majority of participants agreed that the tools were intuitive and aided their understanding of SQL queries. These tools should, therefore, find applications in aiding SQL comprehension at higher learning institutions and assist in the writing of correct queries in data-centered industries.
description: 219 pages, 60 figures
Assessing the Effectiveness of Payments for Ecosystem Services: an Agent-Based Modeling Approach
Creators: name: Shortridge, Ashton
name: An, Li
name: Liu, Jianguo
name: Viña, Andrés
name: Chen, Xiaodong
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: Payments for ecosystem services (PES) have increasingly been implemented to protect and restore ecosystems worldwide. The effectiveness of conservation investments in PES may differ under alternative policy scenarios and may not be sustainable because of uncertainties in human responses to policies and dynamic human-nature interactions. To assess the impacts of these interactions on the effectiveness of PES programs, we developed a spatially explicit agent-based model: human and natural interactions under policies (HANIP). We used HANIP to study the effectiveness of China’s Natural Forest Conservation Program (NFCP) and alternative policy scenarios in a coupled human-nature system, China’s Wolong Nature Reserve, where indigenous people’s use of fuelwood affects forests. We estimated the effects of the current NFCP, which provides a cash payment, and an alternative payment scenario that provides an electricity payment by comparing forest dynamics under these policies to forest dynamics under a scenario in which no payment is provided. In 2007, there were 337 km² of forests in the study area of 515 km². Under the baseline projection in which no payment is provided, the forest area is expected to be 234 km² in 2030. Under the current NFCP, there are likely to be 379 km² of forests in 2030, or an increase of 145 km² of forests to the baseline projection. If the cash payment is replaced with an electricity payment, there are likely to be 435 km² of forests in 2030, or an increase of 201 km² of forests to the baseline projection. However, the effectiveness of the NFCP may be threatened by the behavior of newly formed households if they are not included in the payment scheme. In addition, the effects of socio-demographic factors on forests will also differ under different policy scenarios. Human and natural interactions under policies (HANIP) and its modeling framework may also be used to assess the effectiveness of many other PES programs around the world.
King's Type 1 Diabetes Service Resource Pack (September 2020)
Creators: name: Gallen, Geraldine
Publisher: name: Zenodo
Year: 2020
Subjects: diabetes
type 1 diabetes
education
resources

description: King’s Type 1 Diabetes Service Resource Pack
 September 2020 This document serves as a support pack with resources and links to support your diabetes management in between clinic appointments Please also follow us on Twitter @diabeteskings where we will post up to date resources and research findings, our website also has links which you may find useful https://www.kch.nhs.uk/service/a-z/diabetes
Supplementary Information 3 from Convergence and divergence in gesture repertoires as an adaptive mechanism for social bonding in primates.
Creators: name: Roberts, Anna Ilona
name: Roberts, Sam George Bradley
Publisher: name: The Royal Society
Year: 2017
Subjects: subject: 60801 Animal Behaviour
subject: FOS: Biological sciences

description: Supplementary Information 3 contains data used in GLMM models in regards of identity of the signaller and the recipient and their attributes
Evanescent Operators in One-Loop Matching Computations
Creators: name: Fuentes-Martín, Javier
name: König, Matthias
name: Pagès, Julie
name: Thomsen, Anders Eller
name: Wilsch, Felix
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Effective Field Theory calculations used in countless phenomenological analyses employ dimensional regularization, and at intermediate stages of computations, the operator bases extend beyond the four-dimensional ones. The extra pieces -- the evanescent operators -- can ultimately be removed with a suitable renormalization scheme, resulting in a finite shift of the physical operators. Modern Effective Field Theory matching techniques relying on the method of expansion by regions have to be extended to account for this. After illustrating the importance of these shifts in two specific examples, we compute the finite shifts required to remove all evanescent operators appearing in the one-loop matching of generic ultraviolet theories to the Standard Model Effective Field Theory and elucidate the formalism for generic Effective Field Theory calculations.
description: 35 pages, 4 figures, 1 nice Mathematica user interface with SMEFT results in the ancillary files, Published version
Supplementary Information 1 from Convergence and divergence in gesture repertoires as an adaptive mechanism for social bonding in primates
Creators: name: Roberts, Anna Ilona
name: Roberts, Sam George Bradley
Publisher: name: The Royal Society
Year: 2017
Subjects: subject: 60801 Animal Behaviour
subject: FOS: Biological sciences

description: Supplementary Information 1 contains example of how behavioural measures for networks were calculated, categorization of attributes used in social network analyses, classification of gesture types according to modality and additional analyses that expand on the findings reported in the main results section of the paper.
Multiple telecouplings and their complex interrelationships
Creators: name: Luo, Junyan
name: An, Li
name: Zhang, Jindong
name: Ouyang, Zhiyun
name: Vogt, Christine
name: Zhang, Hemin
name: Liu, Wei
name: Chen, Xiaodong
name: Liu, Jianguo
name: Yang, Wu
name: Yang, Hongbo
name: Viña, Andrés
name: Xu, Weihua
name: Xu, Zhenci
name: Li, Shuxin
name: Hull, Vanessa
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: Increasingly, the world is becoming socioeconomically and environmentally connected, but many studies have focused on human-environment interactions within a particular area. Although some studies have considered the impacts of external factors, there is little research on multiple reciprocal socioeconomic and environmental interactions between a focal area and other areas. Here we address this important kowledge gap by applying the new integrated framework of telecouplings (socioeconomic and environmental interactions between two or more areas over distances). Results show that even a protected area - i.e., the Wolong Nature Reserve for giant pandas in southwest China - has multiple telecoupling processes with the rest of the world; these include panda loans, tourism, information dissemination, conservation subsidies, and trade of aricultural and industrial products. The telecoupling processes exhibit nonlinear patterns, they change over time, and they have varying socioeconomic and environmental effects across the world. We also find complex relationships among different telecouplings - e.g., amplification, offsetting, spatial overlaps - which cannot be detected by traditional separate studies. Such an integrated study leads to a more comprehensive understanding of distant human-enviroment interactions and has significant implications for global sustainability and human well-being.
(2918) Percival Maw Pinder
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Supplementary Information 4 from Convergence and divergence in gesture repertoires as an adaptive mechanism for social bonding in primates.
Creators: name: Roberts, Anna Ilona
name: Roberts, Sam George Bradley
Publisher: name: The Royal Society
Year: 2017
Subjects: subject: 60801 Animal Behaviour
subject: FOS: Biological sciences

description: Supplementary Information 4 contains data used in GLMM models in regards of duration of social bonding behaviour produced by the signaller towards the recipient
A Decade of Linear and Circular Polarimetry with the POLISH2 Polarimeter
Creators: name: Wiktorowicz, Sloane J.
name: Słowikowska, Agnieszka
name: Nofi, Larissa A.
name: Rider, Nicole
name: Wolfgang, Angie
name: Hermis, Ninos
name: Jontof-Hutter, Daniel
name: Bayless, Amanda J.
name: Cole, Gary M.
name: Crawford, Kirk B.
name: Tsarev, Valeri V.
name: Owens, Michael C.
name: Jaramillo, Ernest G.
name: Maul, Geoffrey A.
name: Graham, James R.
name: Millar-Blanchaer, Maxwell A.
name: Bott, Kimberly
name: Mauerhan, Jon C.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The POLISH2 optical polarimeter has been in operation at the Lick Observatory 3-m Shane telescope since 2011, and it was commissioned at the Gemini North 8-m in 2016. This instrument primarily targets exoplanets, asteroids, and the Crab pulsar, but it has also been used for a wide variety of planetary, galactic, and supernova science. POLISH2's photoelastic modulators, employed instead of rotating waveplates or ferro-electric liquid crystal modulators, offer the unprecedented ability to achieve sensitivity and accuracy of order 1 ppm (0.0001%), which are difficult to obtain with conventional polarimeters. Additionally, POLISH2 simultaneously measures intensity (Stokes I), linear polarization (Stokes Q and U), and circular polarization (Stokes V), which fully describe the polarization state of incident light. We document our laboratory and on-sky calibration methodology, our archival on-sky database, and we demonstrate conclusive detection of circular polarization of certain objects.
description: 38 pages, 16 figures, accepted by ApJS
Mechanism Design with Interdependent Valuations: Efficiency
Creators: name: Mezzetti, Claudio
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2004

description: Agents' valuations are interdependent if they depend on the signals, or types, of all agents. Under the implicit assumption that agents cannot observe their outcome-decision payoffs, previous literature has shown that with interdependent valuations and independent signals, efficient design is impossible. This paper shows that an efficient mechanism exists in an environment where first the final outcome (e.g., allocation of the goods) is determined, then the agents observe their own outcome-decision payoffs, and then final transfers are made.
(2920) John Percival Pinder
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Equivalence Between Out-of-Sample Forecast Comparisons and Wald Statistics
Creators: name: Hansen, Peter Reinhard
name: Timmermann, Allan
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: We demonstrate the asymptotic equivalence between commonly used test statistics for out-of-sample forecasting performance and conventional Wald statistics. This equivalence greatly simplifies the computational burden of calculating recursive out-of-sample test statistics and their critical values. For the case with nested models, we show that the limit distribution, which has previously been expressed through stochastic integrals, has a simple representation in terms of -distributed random variables and we derive its density. We also generalize the limit theory to cover local alternatives and characterize the power properties of the test.
Impurities and electronic localization in graphene bilayers
Creators: name: Collado, H. P. Ojeda
name: Usaj, Gonzalo
name: Balseiro, C. A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We analyze the electronic properties of bilayer graphene with Bernal stacking and a low concentration of adatoms. Assuming that the host bilayer lies on top of a substrate, we consider the case where impurities are adsorbed only on the upper layer. We describe non-magnetic impurities as a single orbital hybridized with carbon's pz states. The effect of impurity doping on the local density of states with and without a gated electric field perpendicular to the layers is analyzed. We look for Anderson localization in the different regimes and estimate the localization length. In the biased system, the field induced gap is partially filled by strongly localized impurity states. Interestingly, the structure, distribution and localization length of these states depend on the field polarization.
description: 7 pages, 6 figures
Shear viscosity coefficient of magnetized QCD medium near chiral phase transition
Creators: name: Zhu, Xueqiang
name: Feng, Sheng-Qin
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the properties of the shear viscosity coefficient of quark matter at finite temperature and chemical potential near chiral phase transition in a strong background magnetic field. A strong magnetic field induces anisotropic features, phase-space Landau-level quantization, and if the magnetic field is sufficiently strong, interferes with prominent QCD phenomena such as dynamical quark mass generation, likely affecting the quark matter transport characteristics. The modified Nambu-Jona-Lasinio (NJL) model with inverse magnetic catalysis effect by fitting the Lattice QCD (LQCD) results is used to calculate the changes of quasiparticle related thermodynamic quantities, and the shear viscosity of the system medium, which is analyzed under the relaxation time approximation. We quantify the influence of the order of chiral phase transition and the critical endpoint on dissipative phenomena in such a magnetized medium. When the magnetic field exists, the shear viscosity coefficient of the dissipative fluid system can be decomposed into five different components. In strong field limit, we make a detailed study of the dependencies of $η_{2}$ and $η_{4}$ on temperature and magnetic field for the first order phase transition and critical endpoint transition. respectively. It is found that $η_{2}$ and $η_{4}$ both decrease with magnetic field and increase with temperature, and the discontinuities of $η_{2}$ and $η_{4}$ occur at the first order phase transition point.
description: 22 pages, 13 figures
Supplementary Information 2 from Convergence and divergence in gesture repertoires as an adaptive mechanism for social bonding in primates
Creators: name: Roberts, Anna Ilona
name: Roberts, Sam George Bradley
Publisher: name: The Royal Society
Year: 2017
Subjects: subject: 60801 Animal Behaviour
subject: FOS: Biological sciences

description: Supplementary Information 2 contains all of the data used in social network analyses such as matrices of individual attributes (age, sex, oestrous similarity, maternal kinship), duration of social behaviour per hour spent in the same party (e.g. joint feeding, travel, resting, grooming given, mutual, attention, proximity), gesture networks (e.g. kappa values, repertoire size of homogenenous and heterogeneous gestures, rate of gestures).
Supplementary Information 5 from Convergence and divergence in gesture repertoires as an adaptive mechanism for social bonding in primates.
Creators: name: Roberts, Anna Ilona
name: Roberts, Sam George Bradley
Publisher: name: The Royal Society
Year: 2017
Subjects: subject: 60801 Animal Behaviour
subject: FOS: Biological sciences

description: Supplementary Information 5 contains data used in GLMM models in regards of types of response to the gesture
Ripples in hexagonal lattices of atoms coupled to Glauber spins
Creators: name: Ruiz-Garcia, M
name: Bonilla, L L
name: Prados, A
Publisher: name: arXiv
Year: 2015
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: A system of atoms connected by harmonic springs to their nearest neighbors on a lattice is coupled to Ising spins that are in contact with a thermal bath and evolve under Glauber dynamics. Assuming a nearest-neighbor antiferromagnetic interaction between spins, we calculate analytically the equilibrium state. On a one-dimensional attice, the system exhibits first and second order phase transitions. The order parameters are the total magnetization and the number of spin pairs in an antiferromagnetic configuration. On a hexagonal two dimensional lattice, spins interact with their nearest-neighbors and next-nearest-neighbors. Together with the coupling to atoms, these interactions produce a complex behavior that is displayed on a phase diagram. There are: ordered phases associated to ripples with atomic wavelength and antiferromagnetic order, ordered phases associated to ripples with nanometer wavelengths and ferromagnetic order, disordered glassy phases, and other phases presenting stripes formed by different domains. These static phases are discussed in relation to existing experiments and results for other models found in the literature.
description: accepted for publication in JSTAT
Exotic states with triple charm
Creators: name: Bayar, M.
name: Torres, A. Martinez
name: Khemchandani, K. P.
name: Molina, R.
name: Oset, E.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In this work we investigate the possibility of the formation of states from the dynamics involved in the $D^*D^*D^*$ system by considering that two $D^*$'s generate a $J^P=1^+$ bound state, with isospin 0, which has been predicted in an earlier theoretical work. We solve the Faddeev equations for this system within the fixed center approximation and find the existence of $J^P=0^-$, $1^-$ and $2^-$ states with charm $3$, isospin $1/2$, masses $\sim 6000$ MeV, which are manifestly exotic hadrons, i.e., with a multiquark inner structure.
Dissolution on Titan and on Earth: Towards the age of Titan's karstic landscapes
Creators: name: Cornet, Thomas
name: Cordier, Daniel
name: Bahers, Tangui Le
name: Bourgeois, Olivier
name: Fleurant, Cyril
name: Mouélic, Stéphane Le
name: Altobelli, Nicolas
Publisher: name: arXiv
Year: 2015
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Titan's polar surface is dotted with hundreds of lacustrine depressions. Based on the hypothesis that they are karstic in origin, we aim at determining the efficiency of surface dissolution as a landshaping process on Titan, in a comparative planetology perspective with the Earth as reference. Our approach is based on the calculation of solutional denudation rates and allow inference of formation timescales for topographic depressions developed by chemical erosion on both planetary bodies. The model depends on the solubility of solids in liquids, the density of solids and liquids, and the average annual net rainfall rates. We compute and compare the denudation rates of pure solid organics in liquid hydrocarbons and of minerals in liquid water over Titan and Earth timescales. We then investigate the denudation rates of a superficial organic layer in liquid methane over one Titan year. At this timescale, such a layer on Titan would behave like salts or carbonates on Earth depending on its composition, which means that dissolution processes would likely occur but would be 30 times slower on Titan compared to the Earth due to the seasonality of precipitation. Assuming an average depth of 100 m for Titan's lacustrine depressions, these could have developed in a few tens of millions of years at polar latitudes higher than 70° N and S, and a few hundreds of million years at lower polar latitudes. The ages determined are consistent with the youth of the surface (<1 Gyr) and the repartition of dissolution-related landforms on Titan.
description: To appear in Journal of Geophysical Research Planets, 2015
An investigation of open clusters Berkeley 68 and Stock 20 using CCD UBV and Gaia DR3 data
Creators: name: Yontan, Talar
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We performed detailed photometric and astrometric analyses of the open star clusters Berkeley 68 and Stock 20. This was based on ground-based CCD UBV photometric data complemented by space-based Gaia Data Release 3 photometry and astrometry. 198 stars were identified as likely cluster members for Berkeley 68 and 51 for Stock 20. Two-color diagrams were used to derive the reddening and photometric metallicity for each cluster. The reddening for Berkeley 68 is $E(B-V)=0.520 \pm 0.032$ and $0.400 \pm 0.048$ mag for Stock 20. Photometric metallicity [Fe/H] is $-0.13 \pm 0.08$ dex for Berkeley 68, and $-0.01 \pm 0.06$ dex for Stock 20. Keeping as constant reddening and metallicity, we determined the distance moduli and ages of the clusters through fitting isochrones to the UBV and Gaia based color-magnitude diagrams. Photometric distances are $d=3003 \pm 165$ pc for Berkeley 69 and $2911 \pm 216$ pc for Stock 20. The cluster ages are $2.4 \pm 0.2$ Gyr and $50 \pm 10$ Myr for Berkeley 68 and Stock 20, respectively. Present-day mass function slopes were found to be $Γ= 1.38 \pm 0.71$ and $Γ= 1.53 \pm 0.39$ for Berkeley 68 and Stock 20, respectively. These values are compatible with the value of Salpeter (1955). The relaxation times were estimated as 32.55 Myr and 23.17 Myr for Berkeley 68 and Stock 20, respectively. These times are less than the estimated cluster ages, indicating that both clusters are dynamically relaxed. Orbit integration was carried out only for Berkeley 68 since radial velocity data was not available for Stock 20. Analysis indicated that Berkeley 68 was born outside the solar circle and belongs to the thin-disc component of the Milky Way.
description: 24 pages, including 14 figures and 7 tables, accepted for publication in the Astronomical Journal
Supplementary Information 6 from Convergence and divergence in gesture repertoires as an adaptive mechanism for social bonding in primates.
Creators: name: Roberts, Anna Ilona
name: Roberts, Sam George Bradley
Publisher: name: The Royal Society
Year: 2017
Subjects: subject: 60801 Animal Behaviour
subject: FOS: Biological sciences

description: Supplementary Information 6 contains data used in GLMM models in regards of repertoire size of homogeneous and heterogeneous gestures overall and by modality
Dynamic interactions of ecohydrological and biogeochemical processes in water-limited systems
Creators: name: Manzoni, Stefano
name: Riveros-Iregui, Diego
name: Wang, Lixin
name: Ravi, Sujith
name: Caylor, Kelly
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: Water is the essential reactant, catalyst, or medium for many biogeochemical reactions, thus playing an important role in the activation and deactivation of biogeochemical processes. The coupling b ...
Numerical semigroups with a given set of pseudo-Frobenius numbers
Creators: name: Delgado, M.
name: García-Sánchez, P. A.
name: Robles-Pérez, A. M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Commutative Algebra (math.AC)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 11D07, 20M14, 20-04

description: The pseudo-Frobenius numbers of a numerical semigroup are those gaps of the numerical semigroup that are maximal for the partial order induced by the semigroup. We present a procedure to detect if a given set of integers is the set of pseudo-Frobenius numbers of a numerical semigroup and, if so, to compute the set of all numerical semigroups having this set as set of pseudo-Frobenius numbers.
description: 22 pages
High-Resolution Radio Study of the Dragonfly Nebula
Creators: name: Jin, Ruolan
name: Ng, C. -Y.
name: Roberts, Mallory S. E.
name: Li, Kwan-Lok
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The Dragonfly Nebula (G75.2$+$0.1) powered by the young pulsar J2021$+$3651 is a rare pulsar wind nebula (PWN) that shows double tori and polar jets enclosed by a bow-shock structure in X-rays. We present new radio observations of this source taken with the Very Large Array (VLA) at 6 GHz. The radio PWN has an overall size about two times as large as the X-ray counterpart, consisting of a bright main body region in the southwest, a narrow and fainter bridge region in the northeast, and a dark gap in between. The nebula shows a radio spectrum much softer than that of a typical PWN. This could be resulting from compression by the ram pressure as the system travels mildly supersonically in the interstellar medium (ISM). Our polarization maps reveal a highly ordered and complex $B$-field structure. This can be explained by a toroidal field distorted by the pulsar motion.
description: 12 pages, 11 figures; submitted to ApJ
Supplementary Information 4 from Convergence and divergence in gesture repertoires as an adaptive mechanism for social bonding in primates
Creators: name: Roberts, Anna Ilona
name: Roberts, Sam George Bradley
Publisher: name: The Royal Society
Year: 2017
Subjects: subject: 60801 Animal Behaviour
subject: FOS: Biological sciences

description: Supplementary Information 4 contains data used in GLMM models in regards of duration of social bonding behaviour produced by the signaller towards the recipient
Electromagnetic form factors of the $B_c$-like tetraquarks: molecular and diquark-antidiquark pictures
Creators: name: Özdem, Ulaş
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: In this study, we use the molecular and diquark-antidiquark tetraquark pictures to investigate magnetic and quadrupole moments of the $B_c$-like ground state tetraquarks with the QCD light-cone sum rules with quantum numbers $J^P = 1^+$. In the numerical analysis, to obtain the magnetic and quadrupole moments of $B_c$-like tetraquark states molecular and diquark-antidiquark forms of interpolating currents, and photon distribution amplitudes have been used. The magnetic moments are acquired as $ μ_{Z_{uc \bar u \bar b}}^{Mol}=1.18^{+0.52}_{-0.40}~μ_N$, $μ_{Z_{uc \bar u \bar b}}^{Di}=3.05^{+1.19}_{-0.95}~μ_N$, $μ_{Z_{dc \bar d \bar b}}^{Mol}=0.32^{+0.18}_{-0.10}~μ_N$, and $μ_{Z_{dc \bar d \bar b}}^{Di}=2.38^{+0.95}_{-0.75}~μ_N$. The hadrons' magnetic and quadrupole moments are another fundamental observable as their mass, which provides information on the underlying quark structure and dynamics. The results obtained in both pictures are quite different from each other. Any experimental measurement of the magnetic moments can provide an understanding of the internal structure of these states. We get nonzero but small values for the quadrupole moments of $B_c$-like tetraquark states showing non-spherical charge distributions. Hopefully, the examinations given in this study will be helpful to an experimental search of them, which will be an interesting research subject.
description: 13 pages, 1 figure and 2 tables; version accepted for publication in Physics Letters B
Linked data for open vocabularies and HIVE's global framework
Creators: name: Méndez, Eva
name: Greenberg, Jane
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: This paper summarizes new trends and advances in Knowledge Organization from the perspective of linked open data (LOD). Although this is particularly important to galleries, libraries, archives and museums, the so-called GLAM community, it is of more general relevance, and part of the value of LOD lies in its adoption beyond that community. LOD includes descriptive metadata and vocabulary encoding schemes that are being skosified (encoded in the SKOS format) or rendered in OWL (the web ontology language) and made available not only on the web, but for the semantic web. The paper highlights a few exemplary initiatives in the field. The paper also introduces the HIVE (Helping Interdisciplinary Vocabularies Engineering) framework and discusses the HIVE-ES (Espana) extension for Spanish language vocabularies, leading to a more global approach for linked open vocabularies (LOV).
title: Ensuring an effective global stocktake with a sectoral perspective
Creators: name: Hermwille, Lukas
name: Obergassel, Wolfgang
name: Pérez Català, Anna
name: Fragkos, Panagiotis
name: Van de Ven, Dirk-Jan
name: José Sanz, María
name: Torres Gunfaus, Marta
name: Briand, Yann
name: van Asselt, Harro
name: Oberthür, Sebastian
name: Kronshage, Stefan
name: Jochem, Patrick
name: Xia-Bauer, Chun
Publisher: name: Wuppertal Institut für Klima, Umwelt, Energie
Year: 2022
Subjects: subject: 320 Politik

description: A sectoral perspective can help the Global Stocktake (GST) to effectively achieve its objective to inform Parties' in enhancing subsequent NDCs and in enhancing international cooperation. Specifically, granular and actionable sectoral lessons, grounded in country-driven assessments, should be identified and elaborated. To be effective, conversations on sectoral transformations need to synthesise key challenges and opportunities identified in the national analyses and link them to international enablers; focus on systemic interdependencies, involve diverse actors, and be thoroughly prepared including by pre-scoping points of convergences and divergence across transformations. We specifically recommend that: the co-facilitators of the Technical Dialogue use their (limited) mandate to facilitate an effective conversationon sectoral transformations e.g. by organising dedicated informal seminars in between formal negotiation sessions; key systemic transformations necessary toachieve net-zero by mid-century should be spelled out and included in the final decision or political declaration of the GST; and the political outcome of the GST should mandate follow-up processes at the regional level and encourage national-level conversations to translate the collective messages from GST into actionable and sector-specific policy recommendations.