cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Superlattices Consisting of "Lines" of Adsorbed Hydrogen Atom Pairs on Graphene
Creators: name: Chernozatonskii, L. A.
name: Sorokin, P. B.
name: Belova, E. E.
name: Bruning, J.
name: Fedorov, A. S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The structures and electron properties of new superlattices formed on graphene by adsorbed hydrogen molecules are theoretically described. It has been shown that superlattices of the (n, 0) zigzag type with linearly arranged pairs of H atoms have band structures similar to the spectra of (n, 0) carbon nanotubes. At the same time, superlattices of the (n, n) type with a "staircase" of adsorbed pairs of H atoms are substantially metallic with a high density of electronic states at the Fermi level and this property distinguishes their spectra from the spectra of the corresponding (n, n) nanotubes. The features of the spectra have the Van Hove form, which is characteristic of each individual superlattice. The possibility of using such planar structures with nanometer thickness is discussed.
description: 5 pages, 4 figures
Mixing-demixing in a trapped degenerate fermion-fermion mixture
Creators: name: Adhikari, Sadhan K.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We use a time-dependent dynamical mean-field-hydrodynamic model to study mixing-demixing in a degenerate fermion-fermion mixture (DFFM). It is demonstrated that with the increase of interspecies repulsion and/or trapping frequencies, a mixed state of DFFM could turn into a fully demixed state in both three-dimensional spherically-symmetric as well as quasi-one-dimensional configurations. Such a demixed state of a DFFM could be experimentally realized by varying an external magnetic field near a fermion-fermion Feshbach resonance, which will result in an increase of interspecies fermion-fermion repulsion, and/or by increasing the external trap frequencies.
description: 6 pages, 10 figures
Effect of positive margins in patients who undergo a partial nephrectomy regarding recurrence, overall survival, recurrence/progression-free survival, and metastasis-free survival. A systematic review and meta-analysis
Creators: name: Herney Andres Garcia Perdomo
name: Cabo, Antoni Vilaseca
Publisher: name: figshare
Year: 2021
Subjects: subject: 110323 Surgery
subject: FOS: Clinical medicine

description: Effect of positive margins in patients who undergo a partial nephrectomy regarding recurrence, overall survival, recurrence/progression-free survival, and metastasis-free survival. A systematic review and meta-analysis
Tunnelling of transverse acoustic waves on a silicon chip
Creators: name: Mauranyapin, Nicolas P.
name: Romero, Erick
name: Kalra, Rachpon
name: Harris, Glen
name: Baker, Christopher G.
name: Bowen, Warwick P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: Nanomechanical circuits for transverse acoustic waves promise to enable new approaches to computing, precision biochemical sensing and many other applications. However, progress is hampered by the lack of precise control of the coupling between nanomechanical elements. Here, we demonstrate virtual-phonon coupling between transverse mechanical elements, exploiting tunnelling through a zero-mode acoustic barrier. This allows the construction of large-scale nanomechanical circuits on a silicon chip, for which we develop a new scalable fabrication technique. As example applications, we build mode-selective acoustic mirrors with controllable reflectivity and demonstrate acoustic spatial mode filtering. Our work paves the way towards applications such as fully nanomechanical computer processors and distributed nanomechanical sensors, and to explore the rich landscape of nonlinear nanomechanical dynamics.
description: 9 pages, 6 figures
Additional file 1 of Identification and validation of a seven m6A-related lncRNAs signature predicting prognosis of ovarian cancer
Creators: name: Song, Yang
name: Qu, Hui
Publisher: name: figshare
Year: 2022
Subjects: subject: Cell Biology
subject: Molecular Biology
subject: Ecology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: Additional file 1.
Physical observations of the transient evolution of the porosity distribution during internal erosion using spatial time domain reflectometry
Creators: name: Sufian, Adnan
name: Bittner, Tilman
name: Bore, Thierry
name: Bajodek, Mathieu
name: Scheuermann, Alexander
Publisher: name: arXiv
Year: 2022
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: A purpose-built permeameter was used to explore the transient evolution of porosity during the mixing process in filtration experiments. The experiments considered upward seepage flow and explored the influence of base and filter particle sizes, along with different hydraulic conditions. The permeameter acted as a coaxial transmission line enabling electromagnetic measurements based on spatial time domain reflectometry, from which the porosity profile was obtained using an inversion technique. Quantitative characteristics of the onset and progression of the mixing process were extracted from a porosity field map. The limiting onset condition was influenced by geometric and hydraulic factors, with the critical flow rate exhibiting a strong dependence on the base particle size, while the critical hydraulic gradient exhibited a stronger dependence on filter particle size. The progression of the mixing process was characterised by both the transport of base particles into the filter layer, as well as the settlement of the filter particles into the base layer due to the reduction of the effective stress at the base-filter interface leading to partial bearing failure. The rate of development of the mixture zone was strongly dependent on the hydraulic loading condition and the base particle size, but the final height of the sample after complete mixing was independent of the hydraulic loading path.
description: 26 pages, 12 figures. Article published in Canadian Geotechnical Journal 2022 (see https://cdnsciencepub.com/doi/abs/10.1139/cgj-2021-0570)
Calibrating the Solar Dynamo: Magnetic Activity Cycles of Southern Sun-like Stars
Creators: name: Metcalfe, T. S.
name: Henry, T. J.
name: Knolker, M.
name: Soderblom, D. R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The solar magnetic activity cycle is responsible for periodic episodes of severe space weather, which can perturb satellite orbits, interfere with communications systems, and bring down power grids. Much progress has recently been made in forecasting the strength and timing of this 11-year cycle, using a predictive flux-transport dynamo model (Dikpati 2005, Dikpati et al. 2006). We can strengthen the foundation of this model by extending it to match observations of similar magnetic activity cycles in other Sun-like stars, which exhibit variations in their Ca II H and K emission on time scales from 2.5 to 25 years (Baliunas et al. 1995). This broad range of cycle periods is thought to reflect differences in the rotational properties and the depth of the surface convection zone for stars with various masses and ages. Asteroseismology is now yielding direct measurements of these quantities for individual stars, but the most promising asteroseismic targets are in the southern sky (alpha Cen A, alpha Cen B, beta Hyi), while the existing activity cycle survey is confined to the north. We are initiating a long-term survey of Ca II H and K emission for a sample of 92 southern Sun-like stars to measure their magnetic activity cycles and rotational properties, which will ultimately provide independent tests of solar dynamo models.
description: 5 pages, 3 figures, 1 table; SOHO 18 / GONG 2006 / HELAS I Meeting (2006soho...18E.111M)
Agricultural Production and Trade of Colombia
Creators: name: Bennett, Gae A.
name: Hutchison, John H.
name: Bennett, Gae A.
name: Hutchison, John H.
Publisher: name: Unknown
Year: 1973
Subjects: subject: Agricultural and Food Policy
subject: Crop Production/Industries
subject: Demand and Price Analysis
subject: Food Consumption/Nutrition/Food Safety
subject: International Relations/Trade
subject: Land Economics/Use
subject: Livestock Production/Industries
subject: Marketing
subject: FOS: Economics and business
subject: Productivity Analysis
subject: Research Methods/ Statistical Methods
subject: Colombia
subject: Agriculture
subject: Agricultural productions
subject: Agricultural trade

description: This study contains general background material on Colombia's physical resources--topography, climate, soils, forests, and minerals. It analyzes the factors influencing demand for agricultural products; reviews general policies and goals toward agricultural production and trade; and examines production practices and transportation and marketing facilities. The report gives location, area, and production of all leading crops grown in the country; production of vegetable oils; and location of livestock and agricultural production centers. The study also traces Colombian economic development during the past two decades. Statistical data relate to economic growth, land use, agricultural trade, and production of all principal crops and livestock products.
Spitzer Observations of M83 and the Hot Star, H II Region Connection
Creators: name: Rubin, Robert H.
name: Simpson, Janet P.
name: Colgan, Sean W. J.
name: Dufour, Reginald J.
name: Ray, Katherine L.
name: Erickson, Edwin F.
name: Haas, Michael R.
name: Pauldrach, Adalbert W. A.
name: Citron, Robert I.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have undertaken a program to observe emission lines of SIV 10.5, NeII 12.8, NeIII 15.6, & SIII 18.7 um in a number of extragalactic HII regions with the Spitzer Space Telescope. We report our results for the nearly face-on spiral galaxy M83. The nebulae selected cover a wide range of galactocentric radii (R_G). The observations were made with the Infrared Spectrograph in the short wavelength, high dispersion configuration. The above set of 4 lines is observed cospatially, thus permitting a reliable comparison of the fluxes. From the measured fluxes, we determine the ionic abundance ratios including Ne++/Ne+, S3+/S++, and S++/Ne+ and find that there is a correlation of increasingly higher ionization with larger R_G. By sampling the dominant ionization states of Ne and S for HII regions, Ne/S ~ (Ne+ + Ne++)/(S++ + S3+). Our findings of ratios that exceed the benchmark Orion value are more likely due to other effects than a true gradient in Ne/S. Both Ne and S are primary elements produced in alpha- chain reactions. It is expected that Ne/S remains relatively constant throughout a galaxy. This type of observation and method of analysis has the potential for accurate measurements of Ne/S, particularly for HII regions with lower metallicity & higher ionization than those here, such as those in M33. Our observations may also be used to test the predicted ionizing spectral energy distribution of various stellar atmosphere models. We compare the fractional ionization ratios / & / vs. / with predictions made from our photoionization models using several state-of-the-art stellar atmosphere model grids. A second paper using Spitzer observations of HII regions in the galaxy M33 will follow.
description: Accepted MNRAS: 31 pages, 7 figures, 3 tables
Anoxic Atmospheres on Mars Driven by Volcanism: Implications for Past Environments and Life
Creators: name: Sholes, Steven F.
name: Smith, Megan L.
name: Claire, Mark W.
name: Zahnle, Kevin J.
name: Catling, David C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Mars today has no active volcanism and its atmosphere is oxidizing, dominated by the photochemistry of CO2 and H2O. Using a one-dimensional photochemical model, we consider whether plausible volcanic gas fluxes could have switched the redox-state of the past martian atmosphere to reducing conditions. In our model, the total quantity and proportions of volcanic gases depend on the water content, outgassing pressure, and oxygen fugacity of the source melt. We find that with reasonable melt parameters the past martian atmosphere (~3.5 Gyr to present) could have easily reached reducing and anoxic conditions with modest levels of volcanism, >0.14 km^3/yr, well within the range of prior estimates. Counter-intuitively we also find that more reducing melts with lower oxygen fugacity require greater amounts of volcanism to switch a paleo-atmosphere from oxidizing to reducing. The reason is that sulfur is more stable in such melts and lower absolute fluxes of sulfur-bearing gases more than compensate for increases in the proportions of H2 and CO. These results imply that ancient Mars should have experienced periods with anoxic and reducing atmospheres even through the mid-Amazonian whenever volcanic outgassing was sustained at sufficient levels. Reducing anoxic conditions are potentially conducive to the synthesis of prebiotic organic compounds, such as amino acids, and are therefore relevant to the possibility of life on Mars. Also, anoxic reducing conditions should have influenced the type of minerals that were formed on the surface or deposited from the atmosphere such as elemental polysulfur (S8) as a signature of past reducing atmospheres. Finally, our models allow us to estimate the amount of volcanically sourced atmospheric sulfate deposited over Mars' history, approximately 10^6 to 10^9 Tmol, with a spread depending on assumed outgassing rate history and magmatic source conditions.
description: 6 Figures, 1 Table, 3 Appendices
Additional file 2 of Identification and validation of a seven m6A-related lncRNAs signature predicting prognosis of ovarian cancer
Creators: name: Song, Yang
name: Qu, Hui
Publisher: name: figshare
Year: 2022
Subjects: subject: Cell Biology
subject: Molecular Biology
subject: Ecology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: Additional file 2.
Radio Galaxies in Cooling Cores: Insights from a Complete Sample
Creators: name: Eilek, J. A.
name: Owen, F. N.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have observed a new, complete, cooling-core sample with the VLA, in order to understand how the massive black hole in the central galaxy interacts with the local cluster plasma. We find that every cooling core is currently being energized by an active radio jet, which has probably been destabilized by its interaction with the cooling core. We argue that current models of cooling-core radio galaxies need to be improved before they can be used to determine the rate at which the jet is heating the cooling core. We also argue that the extended radio haloes we see in many cooling-core clusters need extended, in situ re-energization, which cannot be supplied solely by the central galaxy.
description: To appear in proceeding of "Heating and Cooling in Galaxies and Clusters of Galaxies" (August 2006, MPE/Garching). 6 pages, needs svmult.cls file
Dynamic analysis of the SunDial, the rotatory Fresnel collector
Creators: name: Barnetche, Magdalena
name: González-Portillo, Luis Francisco
name: Ibarra, Mercedes
name: Barbero, Rubén
name: Rovira, Antonio
name: Abbas, Rubén
Publisher: name: Zenodo
Year: 2021
Subjects: ASTEP
SHIP

description: This study evaluates the dynamic performance of rotatory Fresnel collector, called SunDial. The SunDial is built on an 8 meters’ diameter platform with an azimuthal sun tracking system. It has a two-tube receiver connected in series, oil as a heat transfer fluid, and 8 mirrors with a 20-25 m2 aperture area. We developed a dynamic model of the SunDial receiver with a control system to test its ability to maintain a constant temperature in different operation modes and variable weather conditions.
Molecular reorientation in hydrogen-bonding liquids: through algebraic $\sim t^{-3/2}$ relaxation toward exponential decay
Creators: name: Gelin, M. F.
name: Kosov, D. S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We present a model for the description of orientational relaxation in hydrogen-bonding liquids. The model contains two relaxation parameters which regulate the intensity and efficiency of dissipation, as well as the memory function which is responsible for the short-time relaxation effects. It is shown that the librational portion of the orientational relaxation is described by an algebraic $\sim t^{-3/2}$ contribution, on top of which more rapid and non-monotonous decays caused by the memory effects are superimposed. The long-time behavior of the orientational relaxation is exponential, although non-diffusional. It is governed by the rotational energy relaxation. We apply the model to interpret recent molecular dynamic simulations and polarization pump-probe experiments on $HOD$ in liquid $D_{2}O$ [C. J. Fecko et al, J. Chem. Phys. 122, 054506 (2005)].
The architecture of multi-planet systems as a tracer of their formation mechanisms
Creators: name: Arora, Udit
name: Hasegawa, Yasuhiro
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Exoplanets observed by the {\it Kepler} telescope exhibit a bi-modal, radius distribution, which is known as the radius gap. We explore an origin of the radius gap, focusing on multi-planet systems. Our simple theoretical argument predicts that type I planetary migration produces different configurations of protoplanets with different masses and such different configurations can result in two distinguishable populations of small-sized multi-planet systems. We then perform an observational analysis to verify this prediction. In the analysis, multiple Kolmogorov-Smirnov tests are applied to the observed systems, using the statistical measures that are devised to systematically characterize the properties of multi-planet systems. We find with 99.5\% confidence that the observed, small-sized multi-planet systems are divided into two distinct populations. The distinction likely originates from different spatial distributions of protoplanets, which are determined by type I migration and subsequently trigger giant impact. We also show that these distinct populations are separated around the radius gap when the gas surface density of protoplanetary disks is $\sim 10^2$ g cm$^{-2}$ in the vicinity of the host stars. This work therefore emphasizes the importance of planetary migration and the inner disk properties.
description: 7 pages, 5 figures, accepted for publication in ApJL
A IMPORTÂNCIA DOS PONTOS DE TROCA DE TRÁFEGO (IX) NA INTERNET E O IMPACTO NA OTIMIZAÇÃO DO SISTEMA AUTÔNOMO
Creators: name: DALILA SANTANA LEAL
name: NETO, FRANCISCO JOSÉ BADARÓ VALENTE
Publisher: name: Zenodo
Year: 2020
Subjects: BGP, IX, PTT, AS, INTERCONEXÃO, OTIMIZAÇÃO

description: Com o atual crescimento da Internet e a evidência da sua importância, associado ao aumento constante da demanda por qualidade e capacidade cresce a necessidade dos operadores (os ISPs - Internet Service Providers, que são AS - Sistemas Autônomos) em otimizar suas infraestruturas com o objetivo de melhoria da performance e disponibilidade. Existem na literatura vários esforços de documentação sobre uma melhor compreensão do complexo ecossistema que forma a Internet, neste contexto estão os pontos de troca de tráfego (IX - Internet Exchange/PTT - Ponto de Troca de Tráfego) que são entidades importantes na Internet devido ao seu objetivo de regionalizar o tráfego, otimizar a performance e disponibilidade e reduzir as distâncias representam a diversidade da Internet. No entanto, existe uma deficiência em encontrar informações atualizadas e centralizadas do cenário de interconexão e das caraterísticas e serviços disponíveis dos PTTs/IXs. Os mecanismos disponíveis à comunidade que servem de consulta como o PeeringDB, Euro-IX, PCH, Internet Exchange Report da HE são os mais evidenciados na pesquisa, mas tem limitações na amplitude de suas informações. Outro grande problema, é a política de restrição de informações sobre sua infraestrutura (como serviços disponíveis, lista de membros, matriz de tráfego) que alguns IXs na Internet adotam, a exemplo dos IXs da Equinix e da Digital Realty. Este trabalho tem como objetivo, através da pesquisa de revisão da literatura e produção de um protótipo funcional, demonstrar a grande contribuição dos PTTs no ecossistema global da Internet e como seu desenvolvimento está otimizando uma melhor qualidade de serviços para os ISPs/ASes. Uma vez que, aumenta a resiliência da rede, estimula a democratização, possibilitando que o ISP/AS tenham custos mais baixos ao pagar por transportes de dados ao invés de trânsito, com objetivo da otimização do seu tráfego maximizando a performance e resiliência. O objetivo preponderante da pesquisa é consolidar a consulta de informações sobre os pontos de troca de tráfego baseada em cruzamento de dados de fontes oficiais e não oficiais embasadas de informações disponíveis, a fim de fornecer a análise do ganho de lateralidade dos sistemas autônomos ao participar dos IX com a validação prática através do protótipo funcional construído, que será disponibilizado à comunidade através do GitHub.
Перспективы роста производства и переработки сельскохозяйственной продукции в АПК России
Creators: name: Федеральный научный центр зернобобовых и крупяных культур
Publisher: name: Федеральный научный центр зернобобовых и крупяных культур
Year: 2023

description: Перспективы роста производства и переработки сельскохозяйственной продукции в АПК России
Supergravity corrections to the $(g-2)_l$ factor by Implicit Regularization
Creators: name: Ottoni, J. E.
name: Scarpelli, A. P. Baeta
name: Sampaio, Marcos
name: Nemes, M. C.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We apply Implicit regularization in the calculation of the one-loop graviton and gravitino corrections to the anomalous magnetic moment of the lepton in unbroken supergravity, which is known to be an important test for any regularization method. We find a null result as it is expected from supersymmetry. We compare our results with the ones obtained by using Differential Regularization and Dimensional Reduction, which are known to preserve supersymmetry at one-loop order.
description: 9 pages, 2 figures
Curadoria Educativa Para Públicos Espontâneos: Duas Perspectivas sobre Mediação de Exposições de Artes Visuais Contemporâneas no Brasil
Creators: name: Diniz, Giovane da Silva
Publisher: name: Zenodo
Year: 2021
Subjects: Ações Educativas
Curadoria Pedagógica
Mediação Cultural

description: Esta pesquisa aborda projetos de curadoria pedagógica que envolvem ações educativas para públicos espontâneos em exposições de artes visuais no Brasil a partir da análise de atividades desenvolvidas no Instituto Inhotim e na 33ª Bienal de São Paulo, juntamente com o programa de Itinerância da Bienal na Fundação Clóvis Salgado (FCS) em 2019. O estudo busca levantar quais ações educativas são voltadas para os públicos espontâneos nas instituições pesquisadas, suas estratégias e metodologias. O conteúdo traz análise de atividades temáticas ligadas às exposições, possibilitando ver novas práticas para a formação de públicos. A pesquisa apresenta as propostas de mediação desenvolvidas nas instituições estudadas além das metodologias aplicadas em cada evento ou recorte de exposição e as temáticas trabalhadas. O estudo buscou abordar a implementação e importância das ações educativas, baseadas em pesquisa bibliográfica e experiência profissional do pesquisador
Machine Learning Operations: A Survey on MLOps Tool Support
Creators: name: Hewage, Nipuni
name: Meedeniya, Dulani
Publisher: name: arXiv
Year: 2022
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences
subject: A.1; D.2.6; K.6.3

description: Machine Learning (ML) has become a fast-growing, trending approach in solution development in practice. Deep Learning (DL) which is a subset of ML, learns using deep neural networks to simulate the human brain. It trains machines to learn techniques and processes individually using computer algorithms, which is also considered to be a role of Artificial Intelligence (AI). In this paper, we study current technical issues related to software development and delivery in organizations that work on ML projects. Therefore, the importance of the Machine Learning Operations (MLOps) concept, which can deliver appropriate solutions for such concerns, is discussed. We investigate commercially available MLOps tool support in software development. The comparison between MLOps tools analyzes the performance of each system and its use cases. Moreover, we examine the features and usability of MLOps tools to identify the most appropriate tool support for given scenarios. Finally, we recognize that there is a shortage in the availability of a fully functional MLOps platform on which processes can be automated by reducing human intervention.
description: 12 pages
Economic, Socio-Demographic and Psychographic Determinants of Milkfish Consumer Demand, Iloilo Province, Philippines
Creators: name: Tan, Reynold D.
name: Pabuayon. Isabelita, M.
name: Rola, Agnes C.
name: Sumalde, Zenaida M.
name: Yorobe, Jose M.
name: Tan, Reynold D.
name: Pabuayon. Isabelita, M.
name: Rola, Agnes C.
name: Sumalde, Zenaida M.
name: Yorobe, Jose M.
Publisher: name: Unknown
Year: 2017
Subjects: subject: Demand and Price Analysis
subject: hedonic price
subject: consumer demand
subject: instrumental variable
subject: economic
subject: socio-demographics
subject: psychographics

description: This paper attempts to identify the factors that affect the demand for milkfish in Iloilo Province and consequently suggest improvement in the overall competitiveness of the local milkfish industry. Knowing the determinants of demand will guide economic agents to deliver products consistent with specifications desired by consumers. The paper is based on a research conducted in the Province of Iloilo, Philippines using primary data gathered through personal interview of 378 purchase–decision makers. Employing the two-stage least squares method, endogeneity in the model was corrected using an instrumental variable approach. Per capita consumption of milkfish was estimated for the parameters of hypothesized determinants including economic, socio-demographic, and psychographic/behavioral characteristics relating to consumption trends. Demand determinants that were found significant are prices of beef and tilapia; educational attainment, gender and age of the purchase decision-maker, and household size; and psychographics relating to food safety and product traceability. It is recommended that adjustments in production and marketing operations be made to improve the overall competitiveness of the milkfish industry. These are: 1) improvement in production efficiency to reduce cost and be able to sell milkfish at competitive price, 2) adoption of proper postharvest handling practices that preserve the good quality of milkfish, 3) value addition by transforming milkfish into deboned and other processed products, and (4) product labeling to communicate Iloilo origin or product traceability to consumers
Topology change in commuting saddles of thermal N=4 SYM theory
Creators: name: Gursoy, Umut
name: Hartnoll, Sean A.
name: Hollowood, Timothy J.
name: Kumar, S. Prem
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the large N saddle points of weakly coupled N=4 super Yang-Mills theory on S^1 x S^3 that are described by a commuting matrix model for the seven scalar fields {A_0, Φ_J}. We show that at temperatures below the Hagedorn/`deconfinement' transition the joint eigenvalue distribution is S^1 x S^5. At high temperatures T >> 1/R_{S^3}, the eigenvalues form an ellipsoid with topology S^6. We show how the deconfinement transition realises the topology change S^1 x S^5 --> S^6. Furthermore, we find compelling evidence that when the temperature is increased to T = 1/(\sqrtλR_{S^3}) the saddle with S^6 topology changes continuously to one with S^5 topology in a new second order quantum phase transition occurring in these saddles.
description: 1+40 pages, 6 figures. v2: Title changed. Status of commuting saddles clarified: New high T phase transition claimed in the commuting sector only, not in the full theory
Topic Modeling Genre: An Exploration of French Classical and Enlightenment Drama
Creators: name: Schöch, Christof
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences
subject: J.5

description: The concept of literary genre is a highly complex one: not only are different genres frequently defined on several, but not necessarily the same levels of description, but consideration of genres as cognitive, social, or scholarly constructs with a rich history further complicate the matter. This contribution focuses on thematic aspects of genre with a quantitative approach, namely Topic Modeling. Topic Modeling has proven to be useful to discover thematic patterns and trends in large collections of texts, with a view to class or browse them on the basis of their dominant themes. It has rarely if ever, however, been applied to collections of dramatic texts. In this contribution, Topic Modeling is used to analyze a collection of French Drama of the Classical Age and the Enlightenment. The general aim of this contribution is to discover what semantic types of topics are found in this collection, whether different dramatic subgenres have distinctive dominant topics and plot-related topic patterns, and inversely, to what extent clustering methods based on topic scores per play produce groupings of texts which agree with more conventional genre distinctions. This contribution shows that interesting topic patterns can be detected which provide new insights into the thematic, subgenre-related structure of French drama as well as into the history of French drama of the Classical Age and the Enlightenment.
description: 11 figures
Study of the decay B0bar -> D*+ omega pi-
Creators: name: The BABAR Collaboration
name: Aubert, B.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We report on a study of the decay B0bar -> D*+ omega pi- with the BABAR detector at the PEP-II B-factory at the Stanford Linear Accelerator Center. Based on a sample of 232 million BBbar decays, we measure the branching fraction BF(B0bar -> D*+ omega pi-) = (2.88 +/- 0.21(stat.) +/- 0.31(syst.)) \times 10^{-3}. We study the invariant mass spectrum of the omega pi- system in this decay. This spectrum is in good agreement with expectations based on factorization and the measured spectrum in tau- -> omega pi- nu_tau. We also measure the polarization of the D*+ as a function of the omega pi- mass. In the mass region 1.1 to 1.9 GeV we measure the fraction of longitudinal polarization of the D*+ to be Gamma_L/Gamma = 0.654 +/- 0.042(stat.) +/- 0.016(syst.). This is in agreement with the expectations from heavy-quark effective theory and factorization assuming that the decay proceeds as B0bar -> D*+ rho(1450), rho(1450) -> omega pi-.
description: 12 pages, 10 postscript figues, submitted to Phys. Rev. D
Physical conditions in the neutral interstellar medium at z=2.43 toward Q2348-011
Creators: name: Noterdaeme, P.
name: Petitjean, P.
name: Srianand, R.
name: Ledoux, C.
name: Petit, F. Le
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We obtained a high-resolution VLT-UVES spectrum of the quasar Q2348-011 over a wavelength range that covers most of the prominent metal and molecular absorption lines from the log N(HI)=20.50+-0.10 damped Lyman-alpha system at zabs=2.43. From the column density ratios and the relative populations of H2 rotational and CI fine-structure levels, we derive the physical conditions (relative abundances, dust-depletion, particle density, kinetic temperature and ionizing flux) and discuss physical conditions in the neutral phase. Molecular hydrogen is detected in seven components in the first four rotational levels (J = 0-3) of the vibrational ground state. Absorption lines of H2 J = 4 (resp. J = 5) are also detected in six (resp. two) of these components. This leads to a total molecular fraction of log f = -1.69+0.37-0.58. We confirm the earlier findings that there is a correlation between N(FeII)/N(SII) and N(SiII)/N(SII) indicative of a dust-depletion pattern. Surprisingly, however, the depletion of metals onto dust in the H2 components is not large in this system: [Fe/S] = -0.8 to -0.1. The gas in H2-bearing components is found to be cold but still hotter than similar gas in our Galaxy (T > 130 K, instead of typically 80 K). and dense (n=100-200 cm^-3). There is an anti-correlation between the logarithm of the photo-absorption rate, and log N(H2)/N(CI) derived for each H2 component. We show that this is mostly due to shielding effects and implies that the photo- absorption rate is a good indicator of the physical conditions in the gas. We find that the gas is immersed in a intense UV field, about one order of magnitude higher than in the solar vicinity. The results suggest that the gas in H2-bearing DLAs is clumpy, and star-formation occurs in the associated object.
description: 13 pages, 14 figures, accepted for publication in A&A
New pulsar rotation measures and the Galactic magnetic field
Creators: name: Noutsos, Aristeidis
name: Johnston, Simon
name: Kramer, Michael
name: Karastergiou, Aris
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We measured a sample of 150 pulsar Rotation Measures (RMs) using the 20-cm receiver of the Parkes 64-m radio telescope. 46 of the pulsars in our sample have not had their RM values previously published, whereas 104 pulsar RMs have been revised. We used a novel quadratic fitting algorithm to obtain an accurate RM from the calibrated polarisation profiles recorded across 256 MHz of receiver bandwidth. The new data are used in conjunction with previously known Dispersion Measures (DMs) and the NE2001 electron-density model to study models of the direction and magnitude of the Galactic magnetic field.
description: 19 pages, 10 figures, 2 tables
Reducing volume and shape errors in front tracking by divergence-preserving velocity interpolation and parabolic fit vertex positioning
Creators: name: Gorges, Christian
name: Evrard, Fabien
name: van Wachem, Berend
name: Denner, Fabian
Publisher: name: arXiv
Year: 2022
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Volume conservation and shape preservation are two well-known issues related to the advection and remeshing in front tracking. To address these issues, this paper proposes a divergence-preserving velocity interpolation method and a parabolic fit vertex positioning method for remeshing operations for three-dimensional front tracking. Errors in preserving the divergence of the velocity field when interpolating the velocity from the fluid mesh to the vertices of the triangles of the front are a primary reason for volume conservation errors when advecting the front. The proposed interpolation method preserves the discrete divergence of the fluid velocity by construction and is compared in this work with other known interpolation methods in divergence-free and non-divergence-free test cases, with respect to volume conservation and shape preservation of the front. The presented interpolation method conserves the volume and shape up to an order of magnitude better than the conventionally used interpolation methods and is within the range of higher order interpolation methods at lower computational cost. Additionally, the parabolic fit vertex positioning method for remeshing operations locally approximates the front with a smooth polynomial surface, improving volume conservation and shape preservation by an order of magnitude compared to conventional remeshing algorithms.
Chaos in a 3-body Self-Gravitating Cosmological Spacetime
Creators: name: Koop, M. J.
name: Mann, R. B.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate the equal-mass 3-body system in general relativistic lineal gravity in the presence of a cosmological constant $Λ$. The cosmological vacuum energy introduces features that do not have a non-relativistic counterpart, inducing a competing expansion/contraction of spacetime that competes with the gravitational self-attraction of the bodies. We derive a canonical expression for the Hamiltonian of the system and discuss the numerical solution of the resulting equations of motion. As for the system with $Λ=0$, we find that the structure of the phase space yields a rich variety of interesting dynamics that can be divided into three distinct regions: annulus, pretzel, and chaotic; the first two being regions of quasi-periodicity while the latter is a region of chaos. However unlike the $Λ=0$ case, we find that a negative cosmological constant considerably diminishes the amount of chaos in the system, even beyond that of the $Λ=0$ non-relativistic system. By contrast, a positive cosmological constant considerably enhances the amount of chaos, typically leading to KAM breakdown.
description: 40 pages, 16 figures, Latex
Analysis of the Consumption Behavior for Specialty Rice in Sta. Cruz and Los Baños, Laguna, Philippines
Creators: name: Hopio, Bernadette V.
name: Reyes, Julieta A. Delos
name: Hopio, Bernadette V.
name: Reyes, Julieta A. Delos
Publisher: name: Unknown
Year: 2017
Subjects: subject: Crop Production/Industries
subject: specialty rice
subject: attribute importance rating
subject: differentiated importance rating
subject: motivating index

description: The study analyzed the characteristics of consumers buying specialty rice, their consumption pattern, and the factors associated with specialty rice consumption. Accidental sampling of 120 consumer-respondents was done. Descriptive and differentiated importance rating analyses along with Chi-square test of independence were performed. Results revealed that specialty rice consumers are generally young, female, married, highly educated, and high income earners. Brown rice has the highest average weekly consumption (2.89 kg) and black rice, the lowest (2.27 kg). Aroma is the most important attribute and price and length of cooking, the least important. The motivating attributes are length of cooking time for brown rice and price for black and red rice. Age and educational attainment are associated with consumption pattern and should be used as bases for market segmentation. Recommendations emphasize shortening the cooking time for specialty rice as the basis for future product development.
[Handouts for Central Pomo language classes]
Creators: name: Jack, Frances
name: Vihman, Eero
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2015
Subjects: subject: poo
subject: Central Pomo language

description: Photocopies of materials prepared as handouts for Central Pomo language classes. Includes wordlists, texts, and a summary of Central Pomo phonology.
Phase Space of Rolling Solutions of the Tippe Top
Creators: name: Glad, S. Torkel
name: Petersson, Daniel
name: Rauch-Wojciechowski, Stefan
Publisher: name: arXiv
Year: 2007
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: Equations of motion of an axially symmetric sphere rolling and sliding on a plane are usually taken as model of the tippe top. We study these equations in the nonsliding regime both in the vector notation and in the Euler angle variables when they admit three integrals of motion that are linear and quadratic in momenta. In the Euler angle variables $(θ,ϕ,ψ)$ these integrals give separation equations that have the same structure as the equations of the Lagrange top. It makes it possible to describe the whole space of solutions by representing them in the space of parameters $(D,λ,E)$ being constant values of the integrals of motion.
description: This is a contribution to the Vadim Kuznetsov Memorial Issue on Integrable Systems and Related Topics, published in SIGMA (Symmetry, Integrability and Geometry: Methods and Applications) at http://www.emis.de/journals/SIGMA/
beta-Ga2O3 Double Gate Junctionless FET with an Efficient Volume Depletion Region
Creators: name: Madadi, Dariush
name: Orouji, Ali Asghar
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: This paper presents a new \b{eta}-Ga2O3 junctionless double gate Metal-Oxide-Field-Semiconductor-Effect-Transistor (\b{eta}DG-JL-FET) that a P+ packet embedded in the oxide layer (PO-\b{eta}DG-JL-FET) for high-voltage applications. Our goal is to achieve an efficient volume depletion region by placing a P+ layer of silicon. We show that the proposed structure has a subthreshold swing ~ 64 mV/decade and it suppressed the band to band tunneling (BTBT) phenomenon. Also, the PO-\b{eta}DG-JL-FET structure has a high Ion/Ioff ~ 1.3e15. The embedded layer reduces the off-current (IOFF) by ~ 10-4, while the on-current (ION) reduces slightly. Besides, we show that the proposed structure has acceptable Ioff value in a range of gate work functions which help us to the optimization of designs in terms of area, power gain, and leakage current. The leakage current of the proposed structure is ~ 7e-17 A in 400 K temperature. Furthermore, the fabrication process steps of the proposed structure will be investigated.
The Relationship Between Social Capital and Farm Household Consumption Expenditure in Conflict-Vulnerable Areas of Mindanao
Creators: name: Predo, Canesio D.
name: Menz, Kenneth
name: Predo, Canesio D.
name: Menz, Kenneth
Publisher: name: Unknown
Year: 2017
Subjects: subject: Consumer/Household Economics
subject: social capital
subject: consumption expenditure
subject: agriculture

description: The improvement of farm income generating capacity via social capital enhancement is a common goal in many community-based rural development projects. Yet, there are extremely limited studies empirically linking economic benefits and social capital, especially at the level of individual farm households. This paper aims to estimate empirically this relationship using farm household consumption expenditure as a proxy for farm income in the case of conflict-vulnerable areas in Mindanao, Philippines. Social capital enhancement is thought to be especially relevant in such areas, and the results in this paper engender more confidence in such an approach. A reduced-form model was estimated using ordinary least squares method and household survey data of 185 respondents. The model results indicate positive correlation between household social capital and farm household consumption expenditure. Specifically at the current level of consumption expenditure in the study households, social capital was found to have an economic value of PhP 481 per household per month, or 14% of current household consumption expenditure. This finding supports the idea of promoting social capital as a component of livelihood improvement strategies for conflict areas in Mindanao, especially strategies with knowledge transfer orientation like agricultural extension.
Passive control of the onset of vortex shedding in flow past a circular cylinder using Slit
Creators: name: Mishra, Alok
name: Hanzla, Mohd.
name: De, Ashoke
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The present study investigates the passive flow control phenomena over a two-dimensional circular cylinder using numerical simulations in the laminar regime. The aim is to explore one of the passive control techniques, which involves the introduction of a slit to the geometry of the cylinder. The two parameters, slit width ratio S/D (slit width/diameter) and slit angle (measured with respect to the incoming flow direction), play an essential role in determining the trend of critical Reynolds number (Rec). Most of the analysis invokes flow visualization and saturation amplitude methods to obtain the critical Reynolds number (indicative of the onset of vortex shedding) for different cases. Further, Hopf bifurcation analysis using Stuart-Landau equation and global stability analysis confirm the accuracy and consistency in the predicted solutions. The additional amount of flow through slit increases the pressure downstream of the cylinder, which consequently leads to an increase in Rec of the modified cylinder. The critical Reynolds number increases with S/D of the modified cylinder at 0 deg slit angle (as an additional amount of flow grows with S/D). The critical Reynolds number shows an increasing trend with the slit angle in the range of S/D (0.05-0.15) as the fluctuation intensity reduces with slit angle in this range. For S/D= 0.15-0.25, the extra amount of flow through slit induces the instability in wake which causes a decrease in Rec with slit angle. A correlation is obtained that estimates the critical Reynolds number for a given S/D and slit angle.
Determinants of Credit Constraint Among Corn Farmers in Isabela Province, Philippines
Creators: name: Bathan, Bates M.
name: Gordoncillo, Prudenciano U.
name: Bathan, Bates M.
name: Gordoncillo, Prudenciano U.
Publisher: name: Unknown
Year: 2017
Subjects: subject: Crop Production/Industries
subject: credit constraint
subject: quantity rationed
subject: transaction cost rationed
subject: risk rationed

description: The study describes how the demand and preference for agricultural credit is satisfied or not among corn farmers in Isabela, Philippines. It also categorizes farmers as credit unconstrained, quantity rationed, transaction cost rationed or risk rationed individuals, and determines the factors affecting credit constraint. A total of 76 credit unconstrained and 76 credit constrained corn farmers were selected using stratified random sampling. Using probit regression analysis, the significant determinants of credit constraint are age, sex, and monthly household income. Results show that corn farmers who are older, male, or have higher income are less likely to become credit constrained. The main reason cited for being credit constrained in the formal sector is the lack of collateral while for the informal sector, the reason cited is loan application being partially approved.