cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Large-$d$ phase transitions in holographic mutual information
Creators: name: Colin-Ellerin, Sean
name: Hubeny, Veronika E.
name: Niehoff, Benjamin E.
name: Sorce, Jonathan
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In the AdS/CFT correspondence, the entanglement entropy of subregions in the boundary CFT is conjectured to be dual to the area of a bulk extremal surface at leading order in $G_N$ in the holographic limit. Under this dictionary, distantly separated regions in the CFT vacuum state have zero mutual information at leading order, and only attain nonzero mutual information at this order when they lie close enough to develop significant classical and quantum correlations. Previously, the separation at which this phase transition occurs for equal-size ball-shaped regions centered at antipodal points on the boundary was known analytically only in $3$ spacetime dimensions. Inspired by recent explorations of general relativity at large-$d$, we compute the separation at which the phase transition occurs analytically in the limit of infinitely many spacetime dimensions, and find that distant regions cannot develop large correlations without collectively occupying the entire volume of the boundary theory. We interpret this result as illustrating the spatial decoupling of holographic correlations in the large-$d$ limit, and provide intuition for this phenomenon using results from quantum information literature. We also compute the phase transition separation numerically for a range of bulk spacetime dimensions from $4$ to $21$, where analytic results are intractable but numerical results provide insight into the dimension-dependence of holographic correlations. For bulk dimensions above $5$, our exact numerical results are well approximated analytically by working to next-to-leading order in the large-$d$ expansion.
description: 35 pages, 12 figures
Supplementary document for Flexible dynamic structural color based on ultrathin asymmetric Fabry-Perot cavity with phase-change material for temperature perception - 5311810.pdf
Creators: name: Zhao, Jiancun
name: Zhou, Yi
name: Huo, Yihui
name: Gao, Bo
name: Ma, Yungui
name: Yu, Yiting
Publisher: name: Optica Publishing Group
Year: 2021
Subjects: Nanophotonics

description: Color changing performance and incident angle insensitivity
On Calculation of the Neutron Charge Radius
Creators: name: Karmanov, V. A.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We show that the anomalous quark magnetic moments and relativistic effects in the nucleon wave function result in the correct value of the neutron charge radius.
description: 4 Pages, Contribution to the Third International Conference on Perspectives in Hadronic Physics, Trieste, Italy, 7-11 May 2001
Dentilla erronea
Creators: name: Lelej, Arkady S.
name: Yildirim, Erol
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Mutillidae
Dentilla
Dentilla erronea

description: Dentilla erronea (André 1902), stat. resurr.
 Smicromyrme (Edrionotus) erronea: Nagy 1972: 8, ♀ (Bursa).
 Dentilla erronea: Özbek et al. 1999: 18, ♂ (Van); Lelej 2002: 52 (Asian Turkey); Yildirim 2006: 280, ♂ (Erzurum). Dentilla curtiventris: Pagliano & Strumia 2007: 69, part. (Turkey).
 Material examined. Erzurum: University field, 1850 m, 5.VI.1980, 1 ♂; Pazaryolu, 1400 m, 24.VI.2001, 20 ♀, 15 ♂ (five pairs taken in copula by E. Yildirim).
 Distribution. Turkey (Asian territory), Greece, Bulgaria, Albania, Italy, Algeria.
description: Published as part of Lelej, Arkady S. & Yildirim, Erol, 2009, A review of the Mutillidae (Hymenoptera) of Turkey, pp. 1-28 in Zootaxa 2160 (1) on page 15, DOI: 10.11646/zootaxa.2160.1.1, http://zenodo.org/record/5320736
Wide band gap chalcogenide semiconductors
Creators: name: Woods-Robinson, Rachel
name: Han, Yanbing
name: Zhang, Hanyu
name: Ablekim, Tursun
name: Khan, Imran
name: Persson, Kristin
name: Zakutayev, Andriy
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Wide band gap semiconductors are essential for today's electronic devices and energy applications due to their high optical transparency, as well as controllable carrier concentration and electrical conductivity. There are many categories of materials that can be defined as wide band gap semiconductors. The most intensively investigated are transparent conductive oxides (TCOs) such as ITO and IGZO used in displays, carbides and nitrides used in power electronics, as well as emerging halides (e.g. CuI) and 2D electronic materials used in various optoelectronic devices. Chalcogen-based (S, Se, Te) wide band gap semiconductors are less heavily investigated but stand out due to their propensity for p-type doping, high mobilities, high valence band positions (i.e. low ionization potentials), and broad applications in electronic devices such as CdTe solar cells. This manuscript provides a review of wide band gap chalcogenide semiconductors. First, we outline general materials design parameters of high performing transparent conductors. We proceed to summarize progress in wide band gap (Eg > 2 eV) chalcogenide materials, such as II-VI MCh binaries, CuMCh2 chalcopyrites, Cu3MCh4 sulvanites, mixed anion layered CuMCh(O,F), and 2D materials, among others, and discuss computational predictions of potential new candidates in this family, highlighting their optical and electrical properties. We finally review applications of chalcogenide wide band gap semiconductors, e.g. photovoltaic and photoelectrochemical solar cells, transparent transistors, and diodes, that employ wide band gap chalcogenides as either an active or passive layer. By examining, categorizing, and discussing prospective directions in wide band gap chalcogenides, this review aims to inspire continued research on this emerging class of transparent conductors and to enable future innovations for optoelectronic devices.
Measurements of Spin Polarization of Epitaxial SrRuO3 Thin Films
Creators: name: Nadgorny, B.
name: Osofsky, M. S.
name: Singh, D. J.
name: Woods, G. T.
name: Soulen,, R. J.
name: Lee, M. K.
name: Bu, S. D.
name: Eom, C. B.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have measured the transport spin-polarization of epitaxial thin films of the conductive ferromagnetic oxide, SrRuO3, using Point Contact Andreev Reflection Spectroscopy (PCAR). In spite of the fact that spin-up and spin-down electronic densities of states at the Fermi level for SrRuO3 calculated from band structure theory are practically the same, the experimental transport spin polarization for these films was found to be about 50%. This result is a direct consequence of the Fermi velocity disparity between the majority and minority bands and is in good agreement with our theoretical estimates.
description: 12 pages pdf only
Nemka viduata subsp. viduata viduata (Pallas 1773
Creators: name: Lelej, Arkady S.
name: Yildirim, Erol
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Mutillidae
Nemka
Nemka viduata
Nemka viduata viduata (pallas 1773)

description: Nemka viduata viduata (Pallas 1773)
 Nemka viduata viduata: Lelej 1985: 242 (Turkey); 2002: 55 (European and Asian Turkey).
 Nemka viduata: Yildirim 2006: 280, ♂ (Erzurum).
 Smicromyrme viduata viduata: Petersen 1988: 218, ♂, ♀ (Edirne, Aydin, Muğla, Antalya, Ankara, Tokat, Sivas); Özbek et al. 1999: 21, ♂, ♀ (Artvin, Balikesir, Bayburt, Burdur, Erzincan, Erzurum, Kars).
 Smicromyrme viduata bareyi: Özbek et al. 1999: 21, ♂ (Bitlis).
 Material examined. Erzincan: Altunkent, 1400 m, 9.VII.1993, 1 ♂ (identified by A. Ćetković as Nemka viduata macquarti). Erzurum: Palandöken, 2200 m, 22.VII.1994, 1 ♂; Ispir, Madenköprubaşı, 1100 m, 7.VII.1996, 1 ♂; Uzundere, Şelale, 1100 m, 9.VI.1996, 1 ♂. Mersin: 14.VII.1992, 1 ♀. Bitlis: Adilcevaz, 7.VI.1970, 1 ♂ (identified by B. Petersen as Smicromyrme viduata bareyi).
 Distribution. Turkey (European and Asian territory), Georgia, Azerbaijan, Armenia, Mongolia (northwest), Kazakhstan, Syria, Greece, Bulgaria, Slovenia, Croatia, Bosnia-Herzegovina, Serbia, Montenegro, Macedonia, Albania, Germany (south), Austria, Hungary, Romania, Czech Republic, Slovakia, Ukraine, Russia (South European territory, South Ural, Altai), Italy (including Sicily and Sardinia), Malta, France, Spain.
description: Published as part of Lelej, Arkady S. & Yildirim, Erol, 2009, A review of the Mutillidae (Hymenoptera) of Turkey, pp. 1-28 in Zootaxa 2160 (1) on pages 15-16, DOI: 10.11646/zootaxa.2160.1.1, http://zenodo.org/record/5320736
Higher order curvature generalisations of Bartnick-McKinnon and coloured black hole solutions in $d=5$
Creators: name: Brihaye, Yves
name: Chakrabarti, A.
name: Hartmann, Betti
name: Tchrakian, D. H.
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We construct globally regular as well as non-abelian black hole solutions of a higher order curvature Einstein-Yang-Mills (EYM) model in $d=5$ dimensions. This model consists of the superposition of the first two members of the gravitational hierarchy (Einstein plus first Gauss-Bonnet(GB)) interacting with the superposition of the first two members of the $SO(d)$ Yang--Mills hierarchy.
description: 13 Revtex pages, 5 PS figures; discussions extended, reference added
Perturbative renormalization factors in domain-wall QCD with improved gauge actions
Creators: name: Aoki, Sinya
name: Izubuchi, Taku
name: Kuramashi, Yoshinobu
name: Taniguchi, Yusuke
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We evaluate renormalization factors of the domain-wall fermion system with various improved gauge actions at one loop level. The renormalization factors are calculated for quark wave function, quark mass, bilinear quark operators, three- and four-quark operators in modified minimal subtraction (MS-bar) scheme with the dimensional reduction(DRED) as well as the naive dimensional regularization(NDR). We also present detailed results in the mean field improved perturbation theory.
description: 44 pages
Exploring the interplay between airway bacteria, airway inflammation, lung structure and skeletal muscle dysfunction in COPD
Creators: name: Barker, Bethan L.
Publisher: name: University of Leicester
Year: 2019
Subjects: Uncategorized

description: Airway bacteria, airway inflammation, lung structure and skeletal muscle dysfunctionare all recognised as important components of chronic obstructive pulmonary disease(COPD), yet the interplay between these components is not well understood.Within this thesis I present an observational study exploring relationships betweenairway inflammation and molecular measures of potentially pathogenic bacteria. I haveshown that airway bacterial detection is associated with increased airway inflammationin stable COPD, and that this association appears to be driven by Haemophilusinfluenzae.I then present a cross-sectional and longitudinal study using dual energy x-rayabsorptiometry measurements of body composition and have shown that airwaybacterial load and inflammation are independent of body composition changes, and thatloss of skeletal muscle is not associated with accelerated airway inflammation or lungfunction decline.Within a multi-centre exacerbation cohort study I have shown that sputum bacterial loadis only weakly associated with quadriceps muscle strength in stable COPD. In additionI have shown only a small, short-lived reduction in quadriceps strength at exacerbation,suggesting that community managed exacerbations may have limited impact on longterm decline in muscle and physical function in COPD patients.Finally, I present the results of a single centre study that has shown that air trappingmeasured using quantitative computed tomography (QCT) makes the strongest uniquecontribution to airflow obstruction in COPD. Moreover, H. influenzae bacterial load isrelated to QCT measured small airways disease, and this association is independent ofthe amount of neutrophilic airways inflammation.In summary, within this thesis I provide data demonstrating significant relationshipsbetween H. influenzae, airway inflammation and lung structural changes in COPD. Bycontrast, my findings suggest that inflammation, and in particular overspill ofpulmonary inflammation is not a key pathophysiological mechanism leading to skeletalmuscle depletion or dysfunction in COPD.
An Investigation into the treatment and modelling of Municipal Solid Waste Incineration (MSWI) Air Pollution Control (APC) residues
Creators: name: Khalid, Muhammad
Publisher: name: University of East London
Year: 2019

description: Air Pollution Control (APC) residues from Municipal Solid Waste Incineration (MSWI) is considered a problematic hazardous waste, with no current viable reuse, within the UK. Therefore, it is often treated before being deposited into a landfill. This research explores a number of novel techniques to mitigate the hazardous properties of this waste by investigating thermal treatment and cold bonding. Thermal treatment was investigated to manufacture inert Light Weight Aggregate (LWA) by sintering APC residues with clay. The addition of 20% APC residue produced the highest fracture strength of 5.78MPa. Treatment through cold bonding was achieved using the geopolymerisation process. The developed material achieved a compressive strength of approximately 2.35 MPa. The data from the APC residues based geopolymer experimentation was used to develop a machine learning model to predict the compressive strength of the geopolymer. In addition, it was observed through a comprehensive literature review, that complexities arising due to significant variations in the composition of the residue, makes it very difficult to produce a commercially stable product. Therefore, the research tackles this problem by developing an Artificial Neural Network (ANN) model to identify and classify different types of residues/ashes based on their chemical composition as determined by X-ray Fluorescence (XRF) spectroscopy. Overall this research showed that machine learning could be very beneficial to this field to determine the capabilities for various reuse applications for ash waste.
On Weierstrass mock modular forms and a dimension formula for certain vertex operator algebras
Creators: name: Beneish, Lea
name: Mertens, Michael H.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Number Theory (math.NT)
subject: Quantum Algebra (math.QA)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 11F03, 11F22, 17B69

description: Using techniques from the theory of mock modular forms and harmonic Maass forms, especially Weierstrass mock modular forms, we establish several dimension formulas for certain strongly rational, holomorphic vertex operator algebras, complementing previous work by van Ekeren, Möller, and Scheithauer.
description: v3: 28 pages, some minor typos fixed, incorporating referee's comments. Final version accepted for publication
Reheating and turbulence
Creators: name: Graña, Mariana
name: Calzetta, Esteban
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We show that the ''turbulent'' particle spectra found in numerical simulations of the behavior of matter fields during reheating admit a simple interpretation in terms of hydrodynamic models of the reheating period. We predict a particle number spectrum $n_{k}\propto k^{-α}$ with $α\sim 2$ for $k\to 0.$
description: 10 pages, one figure included in text
Decoherence by a nonlinear environment: canonical vs. microcanonical case
Creators: name: Khlebnikov, S.
name: Sadiek, G.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We compare decoherence induced in a simple quantum system (qubit) for two different initial states of the environment: canonical (fixed temperature) and microcanonical (fixed energy), for the general case of a fully interacting oscillator environment. We find that even a relatively compact oscillator bath (with the effective number of degrees of freedom of order 10), initially in a microcanonical state, will typically cause decoherence almost indistinguishable from that by a macroscopic, thermal environment, except possibly at singularities of the environment's specific heat (critical points). In the latter case, the precise magnitude of the difference between the canonical and microcanonical results depends on the critical behavior of the dissipative coefficient, characterizing the interaction of the qubit with the environment.
description: 18 pages, revtex, 2 figures; minor textual changes, corrected typo in eq. (53) (v2); textual changes, mostly in the introduction (v3)
Logarithmic roughening in a growth process with edge evaporation
Creators: name: Hinrichsen, Haye
Publisher: name: arXiv
Year: 2002
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Roughening transitions are often characterized by unusual scaling properties. As an example we investigate the roughening transition in a solid-on-solid growth process with edge evaporation [Phys. Rev. Lett. 76, 2746 (1996)], where the interface is known to roughen logarithmically with time. Performing high-precision simulations we find appropriate scaling forms for various quantities. Moreover we present a simple approximation explaining why the interface roughens logarithmically.
description: revtex, 6 pages, 7 eps figures
Predicting acute radiation toxicity in breast cancer
Creators: name: Rattay, Tim
Publisher: name: University of Leicester
Year: 2019
Subjects: Uncategorized

description: After surgery, radiotherapy is the second most commonly used treatment for breast cancer. Radiotherapy reduces local recurrence rates with a modest improvement in long-term overall survival. However, up to 20 % of patients may experience clinically significant side-effects (toxicity). Radiation toxicity can impact negatively on a patient’s surgical outcomes and on quality of life. There are currently no clinically useful predictive tests for toxicity capable of personalising breastradiotherapy. It is also not known how patients’ treatment decision-making may be influenced by prior knowledge of their personal risk of side-effects from radiotherapy. With a focus on skin toxicity, this study was designed to explore how acute radiation toxicity in the breast can be predicted more accurately, in order to give patients and clinicians better information to plan treatment. Breast cancer patients were recruited prospectively at Leicester and seven other European and North American centres into the REQUITE cohort study. Data on acute toxicity and QoL were correlated with patient and treatment variables to identify those side-effects that could have a significant impact on QoL. Patients participating in the REQUITE study in Leicester were then interviewed to explore their attitudes towards predictive testing and whether a test for acute toxicity would influence their treatment decision-making.The predictive power of known clinical variables associated with acute desquamation was analysed in a combination of three existing Radiogenomics cohorts. In order to investigate the addition of genetic markers to improve predictive model performance, a systematic review and meta-analysis was undertaken, which identified a number of genetic variants associated with acute breast skin toxicity. The clinical prediction model and genetic markers of acute breast toxicity failed to validate in the REQUITE breast cancer cohort, but this analysis confirmed an association of acute ulceration with SNPs near the REV3L gene.
Extended Magic for Negation: Efficient Demand-Driven Evaluation of Stratified Datalog with Precise Complexity Guarantees
Creators: name: Tekle, K. Tuncay
name: Liu, Yanhong A.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Artificial Intelligence (cs.AI)
subject: Databases (cs.DB)
subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences
subject: D.3.2; H.2.3; D.3.4

description: Given a set of Datalog rules, facts, and a query, answers to the query can be inferred bottom-up starting from the facts or top-down starting from the query. For efficiency, top-down evaluation is extended with memoization of inferred facts, and bottom-up evaluation is performed after transformations to make rules driven by the demand from the query. Prior work has shown their precise complexity analysis and relationships. However, when Datalog is extended with even stratified negation, which has a simple and universally accepted semantics, transformations to make rules demand-driven may result in non-stratified negation, which has had many complex semantics and evaluation methods. This paper presents (1) a simple extension to demand transformation, a transformation to make rules demand-driven for Datalog without negation, to support stratified negation, and (2) a simple extension to an optimal bottom-up evaluation method for Datalog with stratified negation, to handle non-stratified negation in the resulting rules. We show that the method provides precise complexity guarantees. It is also optimal in that only facts needed for top-down evaluation of the query are inferred and each firing of a rule to infer such a fact takes worst-case constant time. We extend the precise relationship between top-down evaluation and demand-driven bottom-up evaluation to Datalog with stratified negation. Finally, we show experimental results for performance, as well as applications to previously challenging examples.
description: In Proceedings ICLP 2019, arXiv:1909.07646
Ultrahigh Energy Neutrinos in the Light of SuperK
Creators: name: Dutta, Sharada Iyer
name: Reno, Mary Hall
name: Sarcevic, Ina
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We propose a novel approach for studying neutrino oscillations with extragalactic neutrinos. We show that measurement of the neutrino induced upward hadronic and electromagnetic showers and upward muons could be used to detect $ν_μ\to ν_τ$ oscillations. We find significant signal to background ratios for the hadronic/electromagnetic showers with energies above 10 TeV to 100 TeV initiated by the extragalactic neutrinos. We demonstrate that a kilometer-size neutrino telescope has a very good chance of detecting neutrino oscillations.
description: 4 pages, 3 figures, RevTeX4.0; Talk given at Snowmass 2001
Measuring the Business Value of Recommender Systems
Creators: name: Jannach, Dietmar
name: Jugovac, Michael
Publisher: name: arXiv
Year: 2019
Subjects: subject: Information Retrieval (cs.IR)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Recommender Systems are nowadays successfully used by all major web sites (from e-commerce to social media) to filter content and make suggestions in a personalized way. Academic research largely focuses on the value of recommenders for consumers, e.g., in terms of reduced information overload. To what extent and in which ways recommender systems create business value is, however, much less clear, and the literature on the topic is scattered. In this research commentary, we review existing publications on field tests of recommender systems and report which business-related performance measures were used in such real-world deployments. We summarize common challenges of measuring the business value in practice and critically discuss the value of algorithmic improvements and offline experiments as commonly done in academic environments. Overall, our review indicates that various open questions remain both regarding the realistic quantification of the business effects of recommenders and the performance assessment of recommendation algorithms in academia.
Mapping of spatiotemporal changes across the East African Rift System to identify geothermal anomalies using MODIS land surface temperatures
Creators: name: Holmes, Sadie E.
Publisher: name: University of Leicester
Year: 2019
Subjects: Uncategorized

description: A range of satellite datasets, including MODIS land surface temperature (LST), areused to identify geothermal anomalies associated with rift basins across the East AfricanRift System. Monthly and yearly absolute LST means are generated from January 2003to December 2013 and show regions of warmer LSTs in relevant basins. However,without auxiliary data it is not possible to show that these are related to geothermalanomalies. Two approaches are applied to delineate the LST more clearly - principalcomponent analysis (PCA) and normalisation of the LST with respect to elevation. Thefirst technique uses PCA to delineate the known physical parameters influencing LSTand reveals elevation to be dominant. Consequently, steps have been taken to minimisethe effects on LST. This has been achieved via normalisation, whereby absolute LST isrecalculated, using linear regression analysis, to equivalent normalised LST at anelevation of 0 m. Several previously masked areas, including the Ethiopian Dome, havesince been revealed as warmer and with an increased likelihood of relationship togeothermal heat flux since they correspond to emissivity and tectonic patterns. Note theimpressive manner in which volcanoes including Mount Elgon, cold in absolute LSTbecause of elevation, are also identified as warmer post normalisation. Caution muststill be exercised with respect to the warm anomalies in normalised LST, as these canstill not be conclusively confirmed as geothermal anomalies. A restricted PCA of thenormalised LST shows that these are still sensitive to emissivity as expected butparticularly in a well-defined region around Lake Turkana. In conclusion, the likelihoodof identifying a geothermal anomaly is best associated with the normalised LST andwhere high frequency spatial structure is observed. Identified regions should be checkedagainst the restricted PCA. Future work should incorporate the use of other indicators ofgeothermal activity or heat flux to better identify the LST variance that corresponds togeothermal anomalies.
Two new terpenoids from the leaves of callicarpa macrophylla
Creators: name: Lam, Do Tien
name: Le, Vu Thi Thu
name: Pham Minh Quan
name: Pham Thi Hong Minh
name: Ta Thi Thu Thuy
name: Nguyen Thi Ngoc Anh
name: Bui Huu Tai
name: Van Kiem, Phan
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biochemistry
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer
subject: Inorganic Chemistry
subject: Plant Biology

description: Two new terpenoids (1-2) and seven known compounds (3-9) were isolated from methanol extract of Callicarpa macrophylla leaves. Their structures were determined to be ent-7α,16β,17,18-tetrahydroxykaur-15-one (1), 3β-acetoxy-urs-12-ene-11-one-12-ol (2), ent-1β-acetoxy-7α,14β-dihydroxykaur-16-en-15-one (3), 3β-acetoxy-11α,13β-dihydroxyolean-12-one (4), β-amyrin (5), spinasterol (6), ursolic acid (7), β-sitosterol (8), and daucosterol (9) by analyses of their MS, NMR spectroscopic data and by comparison with those reported in the literature. Compounds 1 – 4, and 7 displayed potential cytotoxic activity towards HepG-2, LU-1, and MCF-7 human cancer cell lines with IC50 values ranging from 0.46 ± 0.21 to 18.14 ± 0.33 μM. Compound 6 showed IC50 values of 14.17 ± 0.21 and 5.72 ± 0.42 μM against Hep-G2 and MCF-7 cell lines, respectively.
Google vs IBM: A Constraint Solving Challenge on the Job-Shop Scheduling Problem
Creators: name: Da Col, Giacomo
name: Teppan, Erich
Publisher: name: arXiv
Year: 2019
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Performance (cs.PF)
subject: FOS: Computer and information sciences

description: The job-shop scheduling is one of the most studied optimization problems from the dawn of computer era to the present day. Its combinatorial nature makes it easily expressible as a constraint satisfaction problem. In this paper, we compare the performance of two constraint solvers on the job-shop scheduling problem. The solvers in question are: OR-Tools, an open-source solver developed by Google and winner of the last MiniZinc Challenge, and CP Optimizer, a proprietary IBM constraint solver targeted at industrial scheduling problems. The comparison is based on the goodness of the solutions found and the time required to solve the problem instances. First, we target the classic benchmarks from the literature, then we carry out the comparison on a benchmark that was created with known optimal solution, with size comparable to real-world industrial problems.
description: In Proceedings ICLP 2019, arXiv:1909.07646
Julia BÄRNIGHAUSEN et al. (Hgg.), Foto-Objekte. Forschen in archäologischen, ethnologischen und kunsthistorischen Archiven
Creators: name: Hahn, Hans Peter
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Julia Bärnighausen et al. (Hgg.), Foto-Objekte. Forschen in archäolo­gischen, ethnologischen und kunsthistorischen Archiven. Bielefeld: Kerber Verlag 2020, 288 S.
description: Göttinger Forum für Altertumswissenschaft, Bd. 23 (2020): Göttinger Forum für Altertumswissenschaft
Nemka viduata subsp. bartholomaei
Creators: name: Lelej, Arkady S.
name: Yildirim, Erol
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Mutillidae
Nemka
Nemka viduata
Nemka viduata bartholomaei (radoszkowski 1865)

description: Nemka viduata bartholomaei (Radoszkowski 1865)
 Nemka viduata bartholomaei: Lelej 2002: 56 (Asian Turkey).
 Smicromyrme viduata bareyi: Petersen 1988: 220, ♂ (Konya).
 Material examined. No specimens have been examined.
 Distribution. Turkey (Konya), Georgia, Azerbaijan, Armenia, China: NW (Xinjiang), Kazakhstan (south of Aral Sea and Balkhash Lake), Kyrgyzstan, Uzbekistan, Turkmenistan, Iran (north).
description: Published as part of Lelej, Arkady S. & Yildirim, Erol, 2009, A review of the Mutillidae (Hymenoptera) of Turkey, pp. 1-28 in Zootaxa 2160 (1) on page 16, DOI: 10.11646/zootaxa.2160.1.1, http://zenodo.org/record/5320736
Cosmological Constant - the Weight of the Vacuum
Creators: name: Padmanabhan, T.
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Recent cosmological observations suggest the existence of a positive cosmological constant $Λ$ with the magnitude $Λ(G\hbar/c^3) \approx 10^{-123}$. This review discusses several aspects of the cosmological constant both from the cosmological (sections 1-6) and field theoretical (sections 7-11) perspectives. The first section introduces the key issues related to cosmological constant and provides a brief historical overview. This is followed by a summary of the kinematics and dynamics of the standard Friedmann model of the universe paying special attention to features involving the cosmological constant. Section 3 reviews the observational evidence for cosmological constant, especially the supernova results, constraints from the age of the universe and a few others. Theoretical models (quintessence, tachyonic scalar field, ...) with evolving cosmological `constant' are described from different perspectives in the next section. Constraints on dark energy from structure formation and from CMBR anisotropies are discussed in the next two sections. The latter part of the review (sections 7-11) concentrates on more conceptual and fundamental aspects of the cosmological constant. Section 7 provides some alternative interpretations of the cosmological constant which could have a bearing on the possible solution to the problem. Several relaxation mechanisms have been suggested in the literature to reduce the cosmological constant to the currently observed value and some of these attempts are described in section 8. Next section gives a brief description of the geometrical structure of the de Sitter spacetime and the thermodynamics of the de Sitter universe is taken up in section 10. The last section deals with the role of string theory in the cosmological constant problem.
description: Final version to appear as Physics Reports; references added, typos and some labelling errors in figures corrected; 114 pages; macros included
Physetopoda daghestanica
Creators: name: Lelej, Arkady S.
name: Yildirim, Erol
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Mutillidae
Physetopoda
Physetopoda daghestanica

description: Physetopoda daghestanica (Radoszkowski 1885)
 Physetopoda daghestanica: Yildirim 2006: 280, ♂ (Erzurum, Tokat).
 Smicromyrme similis: Özbek et al. 1999: 20, ♂ (part.).
 Material examined. Erzurum: Dumlu, 1950 m, 28.VII.1994, 1 ♂; Konaklı, 2000-2400 m, 22.VII.2000, 4 ♂; Palandöken, 2100-2400 m, 19.VII.1993, 4 ♂; 5.VIII.1996, 2 ♂; 23.VII.1997, 3 ♂; Oltu, Vocational Training School, 1345 m, 24.VII.2008, 2 ♂; 15.VIII.2008, 2 ♂; Olur, 1700 m, 22.VII.1992, 1 ♂; Olgun, 1950 m, 24.VIII.1992, 1 ♂; Şenkaya, Akşar, 1350 m, 2.VIII.2008, 1 ♂; Turnalı, 1750 m, 25.VII.1996, 2 ♂; Tortum, Uzunkonak, 1350 m, 12.VII.2001, 1 ♂.
 Distribution. Turkey (Asian territory), Kazakhstan, Greece, Serbia, Montenegro, Macedonia, Croatia, Germany, Czech Republic, Slovakia, Austria, Switzerland, Hungary, Romania, Ukraine, Russia (South European territory, Altai), Italy (including Sicily), France.
description: Published as part of Lelej, Arkady S. & Yildirim, Erol, 2009, A review of the Mutillidae (Hymenoptera) of Turkey, pp. 1-28 in Zootaxa 2160 (1) on page 16, DOI: 10.11646/zootaxa.2160.1.1, http://zenodo.org/record/5320736
Approaches to Defining and Classifying
Creators: name: Bills, Nelson L.
name: Stanton, B.F.
name: Bills, Nelson L.
name: Stanton, B.F.
Publisher: name: Unknown
Year: 1988
Subjects: Agribusiness
Farm Management

description: Alternatives to the value of sales of agricultural products as a major determinant in defining and classifying farms are proposed. Problems in understanding the changing structure of U.S. agriculture in the past 30 years result from: (1) rapid changes in the levels of agricultural prices, (2) the adoption of new technology, and (3) the increased availability and use of off-farm jobs by members of farm operator families. It is suggested that our national statistics classify farms into three major categories: FULL-TIME, PART-TIME, and RESIDENTIAL. A shift away from values of sales as the major classifier of size distributions is encouraged. Labor used in agricultural production and standardized estimated of value added for each acre of crops or livestock unit are proposed to define and classify farms.
Iron nanoparticle bio-interactions evaluated in Xenopus laevis embryos, a model for studying the safety of ingested nanoparticles
Creators: name: Bonfanti, Patrizia
name: Colombo, Anita
name: Saibene, Melissa
name: Fiandra, Luisa
name: Armenia, Ilaria
name: Gamberoni, Federica
name: Gornati, Rosalba
name: Bernardini, Giovanni
name: Mantecca, Paride
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Inorganic Chemistry
subject: Hematology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Iron nanoparticles (NPs) have been proposed as a tool in very different fields such as environmental remediation and biomedical applications, including food fortification against iron deficiency, even if there is still concern about their safety. Here, we propose Xenopus laevis embryos as a suitable model to investigate the toxicity and the bio-interactions at the intestinal barrier of Fe3O4 and zerovalent iron (ZVI) NPs compared to Fe(II) and (III) salts in the 5 to 100 mg Fe/L concentration range using the Frog Embryo Teratogenesis Assay in Xenopus (FETAX). Our results demonstrated that, at concentrations at which iron salts induce adverse effects, both iron NPs do not cause acute toxicity or teratogenicity even if they accumulate massively in the embryo gut. Prussian blue staining, confocal and electron microscopy allowed mapping of iron NPs in enterocytes, along the paracellular spaces and at the level of the basement membrane of a well-preserved intestinal epithelium. Furthermore, the high bioaccumulation factor and the increase in embryo length after exposure to iron NPs suggest greater iron intake, an essential element for organisms. Together, these results improve the knowledge on the safety of orally ingested iron NPs and their interaction with the intestinal barrier, useful for defining the potential risks associated with their use in food/feed fortification.
Spectrum of the Hermitian Wilson-Dirac Operator for a Uniform Magnetic Field in Two Dimensions
Creators: name: Kurokawa, H.
name: Fujiwara, T.
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: It is shown that the eigenvalue problem for the hermitian Wilson-Dirac operator of for a uniform magnetic field in two dimensions can be reduced to one-dimensional problem described by a relativistic analog of the Harper equation. An explicit formula for the secular equations is given in term of a set of polynomials. The spectrum exhibits a fractal structure in the infinite volume limit. An exact result concerning the index theorem for the overlap Dirac operator is obtained.
description: 8 pages, latex, 3 eps figures, minor corrections
Generalised uncertainty relations for angular momentum and spin in quantum geometry
Creators: name: Lake, Matthew J.
name: Miller, Marek
name: Liang, Shi-Dong
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We derive generalised uncertainty relations (GURs) for angular momentum and spin in the smeared-space model of quantum geometry. The model implements a minimum length and a minimum linear momentum, and recovers both the generalised uncertainty principle (GUP) and the extended uncertainty principle (EUP) within a single formalism. In this paper, we investigate the consequences of these results for particles with extrinsic and intrinsic angular momentum, and obtain generalisations of the canonical ${\rm so(3)}$ and ${\rm su(2)}$ algebras. We find that, although ${\rm SO(3)}$ symmetry is preserved on three-dimensional slices of an enlarged phase space, individual subcomponents of the generalised generators obey nontrivial subalgebras. These give rise to GURs for angular momentum while leaving the canonical commutation relations intact except for a simple rescaling, $\hbar \rightarrow \hbar + β$. The value of the new parameter, $β\simeq \hbar \times 10^{-61}$, is determined by the ratio of the dark energy density to the Planck density. Here, we assume the former to be of the order of the Planck length and the latter to be of the order of the de Sitter momentum $\sim \hbar\sqrtΛ$, where $Λ$ is the cosmological constant. In the smeared-space model, $\hbar$ and $β$ are interpreted as the quantisation scales for matter and geometry, respectively, and a quantum state vector is associated with the spatial background. We show that this also gives rise to a rescaled Lie algebra for generalised spin operators, together with associated subalgebras that are analogous to those for orbital angular momentum. Remarkably, consistency of the algebraic structure requires the quantum state associated with a flat background to be fermionic, with spin eigenvalues $\pm β/2$. Finally, the modified spin algebra leads to GURs for spin measurements.
description: 28 pages of main text, plus 12 additional pages split between 4 appendices and 3 pages of references. No figures. Invited contribution to the Universe special issue "Rotation Effects in Relativity", Matteo Ruggiero ed. Published version
Particle spectrum in the modified NMSSM in the strong Yukawa coupling limit
Creators: name: Nevzorov, R. B.
name: Trusov, M. A.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A theoretical analysis of solutions of renormalisation group equations in the MSSM corresponding to the quasi-fixed point conditions shows that the mass of the lightest Higgs boson in this case does not exceed $94\pm 5\text{GeV}$. It means that a substantial part of the parameter space of the MSSM is practically excluded by existing experimental data from LEP II. In the NMSSM the upper bound on the lightest Higgs boson mass reaches its maximum in the strong Yukawa coupling regime, when Yukawa constants are considerably larger the gauge ones on the Grand Unification scale. In this paper a particle spectrum in a simple modification of NMSSM which leads to a self-consistent solution in the considered region of the parameter space is studied. This model allows one to get $m_h\sim 125\text{GeV}$ even for comparatively low values of $\tanβ\ge 1.9$. For an analysis of the Higgs boson spectrum and neutralino spectrum a method for diagonalisation of mass matrices proposed formerly is used. The mass of the lightest Higgs boson in this model does not exceed $130.5\pm 3.5\text{GeV}$.
description: 34 pages, 5 figures included, LaTeX 2e
Physetopoda scutellaris
Creators: name: Lelej, Arkady S.
name: Yildirim, Erol
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Mutillidae
Physetopoda
Physetopoda scutellaris

description: Physetopoda scutellaris (Latreille 1792)
 Smicromyrme scutellaris: Özbek et al. 1999: 21, ♂ (Adana, Ankara, Erzincan, Erzurum).
 Physetopoda scutellaris: Lelej 2002: 62 (Asian Turkey); Yildirim 2006: 280, ♂ (Bayburt, Bilecik, Erzurum, Kars, Tokat).
 Material examined. Bayburt: Yaylapınarı, 26.VII.1992, 2 ♂. Bilecik: 600 m, 15.VIII.1995, 1 ♂. Erzurum: Palandöken, 2200 m, 13.VII.1993, 1 ♂, 22.VII.1994, 1 ♂, 19.VIII.1993, 2 ♂; University field, 1850 m, 25.VII.1999, 1 ♂; Oltu, Çamlıbel, 1750 m, 2.VII.1997, 1 ♂; Olur, 1600 m, 22.VII.1992, 1 ♂; Pasinler, Büyükdere, 1940 m, 10.VIII.1994, 1 ♂; Pazaryolu, 1400 m, 5.VII.2000, 1 ♂; Şenkaya, Turnalı, 1750 m, 28.VII.1993, 1 ♂; Tortum, Meydanlar, 1750 m, 24.VIII.1993, 1 ♂. Kars: Sarıkamış, Karakurt, 1500 m, 26.VIII.1998, 1 ♂. Tokat: 900 m, 19.VII.1992, 1 ♂, 19.VIII.1992, 1 ♂.
 Distribution. Turkey (Asian territory), Armenia, Greece, Slovenia, Croatia, Serbia, Montenegro, Germany, Czech Republic, Slovakia, Austria, Switzerland, Romania, Hungary, Italy (including Sicily), France, Spain.
description: Published as part of Lelej, Arkady S. & Yildirim, Erol, 2009, A review of the Mutillidae (Hymenoptera) of Turkey, pp. 1-28 in Zootaxa 2160 (1) on page 17, DOI: 10.11646/zootaxa.2160.1.1, http://zenodo.org/record/5320736
Bell's inequality for n spin-s particles
Creators: name: Cabello, Adan
Publisher: name: arXiv
Year: 2002
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The Mermin-Klyshko inequality for n spin-1/2 particles and two dichotomic observables is generalized to n spin-s particles and two maximal observables. It is shown that some multiparty multilevel Greenberger-Horne-Zeilinger states [A. Cabello, Phys. Rev. A 63, 022104 (2001)] maximally violate this inequality for any s. For a fixed n, the magnitude of the violation is constant for any s, which provides a simple demonstration and generalizes the conclusion reached by Gisin and Peres for two spin-s particles in the singlet state [Phys. Lett. A 162, 15 (1992)]. For a fixed s, the violation grows exponentially with n, which provides a generalization to any s of Mermin's conclusion for n spin-1/2 particles [Phys. Rev. Lett. 65, 1838 (1990)].
description: REVTeX4, 4 pages
Robert Smock and the Diffusion of Controlled Atmosphere Technology in the U.S. Apple Industry, 1940-1960
Creators: name: Love, John M.
name: Love, John M.
Publisher: name: Unknown
Year: 1988
Subjects: Crop Production/Industries
Research and Development/Tech Change/Emerging Technologies

description: The technology of storing apples in refrigerated controlled atmospheres began spreading from New York to other states during the early 1950s and was introduced in all the major production areas by 1957. Economic and scientific factors were responsible for regional defferences in diffusion of CA technology. The economic factors included high early-season prices in several short-crop years and low intraseasonal price differentials as U.S. apple production increased during the 1950s. A scientific dispute over the benefits of CA for certain western apple varieties also contributed to the uncertainty of adoption. Robert Smock and his students (Van Doren, Southwick, Dewey, Mattus) at New York's Cornell University pioneered the research, development, and adoption of CA technology during the 1940s and 1950s. Others, chiefly USDA researchers, advocated improved traditional handling practices over adoption of CA technology.
A Bioeconomic Model of Pollution and Resource Management
Creators: name: Conrad, Jon M.
name: Conrad, Jon M.
Publisher: name: Unknown
Year: 1988
Subjects: Environmental Economics and Policy
Land Economics/Use

description: This paper examines some of the economic issues underlying the control of pollution and the management of pollution-sensitive resources. The economics of a stock pollutant are briefly reviewed for a simple model with a quadratic damage function and linear dynamics (Section II). A two-state model, where pollution adversely affects the growth of a renewable resource is presented in Section III. Section IV presents differential and difference equation models for two types of pollutants in a stylized model of krill, whales and seals in the Southern Ocean. The paper closes with a section on the need for integrating physical models of pollution with ecosystem models and likely role of physical scientists, biologists and economists in both modeling and formulating policy for an equitable evolutionary strategy.