cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Bubbly drag reduction using a hydrophobic inner cylinder in Taylor-Couette turbulence
Creators: name: Bullee, Pim A.
name: Verschoof, Ruben A.
name: Bakhuis, Dennis
name: Huisman, Sander G.
name: Sun, Chao
name: Lammertink, Rob G. H.
name: Lohse, Detlef
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: In this study we experimentally investigate bubbly drag reduction in a highly turbulent flow of water with dispersed air at $5.0 \times 10^{5} \leq \text{Re} \leq 1.7 \times 10^{6}$ over a non-wetting surface containing micro-scale roughness. To do so, the Taylor-Couette geometry is used, allowing for both accurate global drag and local flow measurements. The inner cylinder - coated with a rough, hydrophobic material - is rotating, whereas the smooth outer cylinder is kept stationary. The crucial control parameter is the air volume fraction $α$ present in the working fluid. For small volume fractions ($α< {4}\,\%$), we observe that the surface roughness from the coating increases the drag. For large volume fractions of air ($α\geq 4\,\%$), the drag decreases compared to the case with both the inner and outer cylinders uncoated, i.e. smooth and hydrophilic, using the same volume fraction of air. This suggests that two competing mechanisms are at place: on the one hand the roughness invokes an extension of the log-layer - resulting in an increase in drag - and on the other hand there is a drag-reducing mechanism of the hydrophobic surface interacting with the bubbly liquid. The balance between these two effects determines whether there is overall drag reduction or drag enhancement. For further increased bubble concentration $α= {6}\,\%$ we find a saturation of the drag reduction effect. Our study gives guidelines for industrial applications of bubbly drag reduction in hydrophobic wall-bounded turbulent flows.
Study of Composite Electrodes of Fe2O3/Graphite and MnFe2O4/PANI in Microbial Fuel Cell
Creators: name: Aryal, Surya
name: Mandira Pradhananga Adhikari
Publisher: name: figshare
Year: 2020
Subjects: subject: 30604 Electrochemistry
subject: FOS: Chemical sciences

description: We constructed composite electrodes: MnFe2O4/PANI and Fe2O4/Graphite and studied their electrochemical behavior for their application in microbial fuel cells. The composite materials and electrodes were characterized using powder X-ray diffraction, Fourier transform infrared spectoscopy, cyclic voltammetry and custom built microbial fuel cell. These electrodes were found to have a superior performance in microbial fuel cell in comparison to carbon electrode. These electrodes were also able to generate consistent current and potential up to 5 days in a waste water microbial fuel cell.
Subsidization of the Biofuel Industry: Security vs. Clean Air?
Creators: name: Viju, Crina
name: Kerr, William A.
name: Nolan, James F.
name: Viju, Crina
name: Kerr, William A.
name: Nolan, James F.
Publisher: name: Unknown
Year: 2006
Subjects: Resource /Energy Economics and Policy

description: Agriculture plays an important role both in reducing Greenhouse Gas Emissions (GHG) and dependence on imported oil from economically and politically volatile areas. Certain crops can be used as inputs for the production of alternative fuels. In addition to these two benefits, the development of biofuel industry has other secondary advantages including rural development. As the current price of biofuel is considerably greater than the price of fossil fuel alternatives, the governments around the world are heavily subsidizing the development of this industry. This paper focuses on the growth of biofuel industry in Canada and US. We develop a theoretical model to examine whether or not the same governmental policy (subsidization) yields different results i.e. a different level of optimal subsidies under different current objectives. We consider that subsidizing the development of the biofuel industry in the present is equivalent to buying an option on its use for future goals energy security or reduced GHG emissions- so our research uses option value theory to assess these alternatives. The theoretical model yields an optimal subsidy option function for each of the two countries. Furthermore, under the scenario of obtaining different optimal levels of subsidies in the two countries, trade disputes can arise. A numerical simulation method is proposed to quantify the optimal level of subsidy option for each country.
description: Replaced with revised version of paper 07/11/06.
Classical and quantum nonlinear localized excitations in discrete systems
Creators: name: Romero, F. R.
name: Archilla, J. F. R.
name: Palmero, F.
name: Sanchez-Rey, B.
name: Alvarez, A.
name: Cuevas, J.
name: Romero, J. M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: Discrete breathers, or intrinsic localized modes, are spatially localized, time--periodic, nonlinear excitations that can exist and propagate in systems of coupled dynamical units. Recently, some experiments show the sighting of a form of discrete breather that exist at the atomic scale in a magnetic solid. Other observations of breathers refer to systems such as Josephson--junction arrays, photonic crystals and optical-switching waveguide arrays. All these observations underscore their importance in physical phenomena at all scales. The authors review some of their latest theoretical contributions in the field of classical and quantum breathers, with possible applications to these widely different physical systems and to many other such as DNA, proteins, quantum dots, quantum computing, etc.
description: Review article, 27 pages, 23 figures
Does Cascading Schmitt-Trigger Stages Improve the Metastable Behavior?
Creators: name: Steininger, Andreas
name: Najvirt, Robert
name: Maier, Jürgen
Publisher: name: arXiv
Year: 2020
Subjects: subject: Other Computer Science (cs.OH)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: B.8.1

description: Schmitt-Trigger stages are the method of choice for robust discretization of input voltages with excessive transition times or significant noise. However, they may suffer from metastability. Based on the experience that the cascading of flip-flop stages yields a dramatic improvement of their overall metastability hardness, in this paper we elaborate on the question whether the cascading of Schmitt-Trigger stages can obtain a similar gain. We perform a theoretic analysis that is backed up by an existing metastability model for a single Schmitt-Trigger stage and elaborate some claims about the behavior of a Schmitt-Trigger cascade. These claims suggest that the occurrence of metastability is indeed reduced from the first stage to the second which suggests an improvement. On the downside, however, it becomes clear that metastability can still not be completely ruled out, and in some cases the behavior of the cascade may be less beneficial for a given application, e.g. by introducing seemingly acausal transitions. We validate our findings by extensive HSPICE simulations in which we directly cover our most important claims.
description: 8 pages, 14 figures, 2016 Euromicro Conference on Digital System Design (DSD)
On the extensivity of the entropy Sq, the q-generalized central limit theorem and the q-triplet
Creators: name: Tsallis, Constantino
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: First, we briefly review the conditions under which the entropy $S_q$ can be extensive (Tsallis, Gell-Mann and Sato, Proc. Natl. Acad. Sc. USA (2005), in press; cond-mat/0502274), as well as the possible $q$-generalization of the central limit theorem (Moyano, Tsallis and Gell-Mann, cond-mat/0509229). Then, we address the $q$-triplet recently determined in the solar wind (Burlaga and Vinas, Physica A {\bf 356}, 375 (2005)) and its possible relation with the space-dimension $d$ and with the range of the interactions (characterized by $α$, the attractive potential energy being assumed to decay as $r^{-α}$ at long distances $r$).
description: 9 pages including 3 figures. Invited lecture at the International Conference on Complexity and Nonextensivity - New Trends in Statistical Mechanics (Yukawa Institute for Theoretical Physics, Kyoto, 14-18 March 2005). To appear in Prog. Theor. Phys. Supplement, eds. M. Sakagami, N. Suzuki and S. Abe
Tariffs on U.S. Imports of Dairy Products: A Product Component Analysis
Creators: name: Tellioglu, Isin
name: Bailey, Kenneth W.
name: Blandford, David
name: Tellioglu, Isin
name: Bailey, Kenneth W.
name: Blandford, David
Publisher: name: Unknown
Year: 2006
Subjects: International Relations/Trade

description: A methodology for dairy product component tariff and price calculation is developed and applied to various products. Since the majority of dairy products are imported for their ingredients, component tariffs need to be considered in evaluating the protection provided by the tariff structure rather than tariffs on end products as listed in the HTS schedule. The results of the Uruguay Round tariffication of dairy products for the United States indicate that implied milk fat and protein AVE's vary substantially among and within product groups. Different tariffs applied to finished products may have unintended impacts on economic incentives due to their impact on the relative prices of imported milk components.
Harald Haarfagres gravhaug ved Karmsund, som den saa ud i 1860. Senere blev den planeret, og overpaa resites den saakaldte "Haraldstøtte", "Tusenaarsstøtte".
Creators: name: Mathiesen, Henrik
Publisher: name: Unknown
Year: 0
Subjects: Udefinert

description: Harald Hårfagres gravhaug.
description: Tegning.
Magnetic domain walls of relic fermions as Dark Energy
Creators: name: Yajnik, Urjit A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that relic fermions of the Big Bang can enter a ferromagnetic state if they possess a magnetic moment and satisfy the requirements of Stoner theory of itinerant ferromagnetism. The domain walls of this ferromagnetism can successfully simulate Dark Energy over the observable epoch spanning $\sim 10$ billion years. We obtain conditions on the anomalous magnetic moment of such fermions and their masses. Known neutrinos fail to satisfy the requirements thus pointing to the possibility of a new ultralight sector in Particle Physics.
description: Essentially same as version 2; to appear in AIP proceedings of PASCOS 2005
alien species Phenolia (Lasiodites) picta (Macleay, 1825) in Sardinia (Coleoptera: Nitidulidae)
Creators: name: Rattu, Roberto
name: Ruzzante, Giampaolo
name: Audisio, Paolo
name: Biscaccianti, Alessandro B
Publisher: name: Fragmenta Entomologica
Year: 2021

description: The Oriental and Eastern Palaearctic species Phenolia picta, recently introduced into some countries of the Mediterranean Basin, including S France and S Italy (Sicily), is here reported for the first time from Sardinia.
description: Fragmenta Entomologica, Vol. 53 No. 1 (2021)
Decomposition of Total Factor Productivity Change in the U.S. Hog Industry, 1992-2004
Creators: name: Key, Nigel D.
name: McBride, William D.
name: Mosheim, Roberto
name: Key, Nigel D.
name: McBride, William D.
name: Mosheim, Roberto
Publisher: name: Unknown
Year: 2006
Subjects: Livestock Production/Industries

description: There have been dramatic structural changes in the U.S. hog industry in the last two decades that have coincided with substantial increases in farm productivity. This study used a stochastic frontier analysis to measure TFP growth between 1992 and 2004 and to decompose the TFP growth into four components: technical change and changes in technical efficiency, scale efficiency, and allocative efficiency. The study finds that productivity gains in the twelve year study period are explained almost entirely by technical progress and by improvements in scale efficiency. The study also disaggregates TFP growth in the Southeast and Heartland to better understand the implications of large spatial shifts in production. Results indicate that regional differences in TFP growth in the 1992-1998 and 1998-2004 periods can be explained primarily by changes in scale of production. Results indicate that despite large increases in the scale of production, there remains substantial scope for further scale efficiency gains, particularly in the Heartland where farms operate at a smaller average scale compared to in the Southeast.
title: Voting for disabled candidates
Creators: name: Reher, Stefanie
Publisher: name: Strathprints - University of Strathclyde
Year: 2024

description: Despite important advances in the rights of disabled people, stigma and prejudice remain widespread. Meanwhile, disabled political representatives are few and far between. This raises the question: do voters discriminate against disabled candidates? This study uses conjoint experiments in the US and the UK to show that candidates with physical or sensory impairments are preferred by voters on the left, whereas voters on the right are more likely to vote for non-disabled candidates. However, these effects are almost entirely due to voters’ perceptions of disabled candidates as more left-wing. When perceived ideology is held constant or candidates’ party affiliation is known, candidate disability does not affect the vote choice among right-wing voters. Left-wing voters still reward left-wing disabled candidates for representing under-represented groups. The findings expand our understanding of the role of disability in electoral politics and should encourage candidates and parties concerned about discrimination at the ballot box.
Exploring hormonal pathways and gene networks in Crown root formation under stress conditions : An update
Creators: name: Dabravolski, Siarhei A.
name: Isayenkov, Stanislav V.
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2025
Subjects: subject: 580

description: Crown root (CR) initiation and development are crucial for the establishment of robust root systems in plants, contributing significantly to stress tolerance and overall growth. This manuscript explores the regulatory roles of key hormones and genes involved in CR formation, with a focus on their interactions under conditions of drought and salt stress. Cytokinins (CK) act as a negative regulator of CR development, while auxin (AUX) serves as a positive driver, facilitating cellular growth and division. Wuschel-related homeobox (WOX) genes, particularly OsWOX11, play a central role by integrating CK and AUX signalling to regulate downstream targets such as OsCRL1 and auxin biosynthetic pathways. Other hormones, including jasmonic acid (JA) and gibberellin (GA), display context-dependent effects, modulating CR initiation based on environmental conditions. Critical genes like OsESG1 and OsFBX257 have been associated with improved drought resilience, interacting with proteins and kinases such as OsGF14b/c and OsCDPK1. Despite progress, significant challenges remain in mapping the full extent of hormonal crosstalk and gene regulation under stress conditions. This manuscript emphasises the need for future studies to incorporate comprehensive multi-omics approaches, expand the exploration of stress-related hormones like abscisic acid (ABA), and leverage advanced gene-editing techniques. Addressing these gaps will enhance our understanding of CR development and contribute to the development of crops with greater resistance to environmental stresses.
Nonreciprocal Transmission of Microwave Acoustic Waves in Nonlinear Parity-Time Symmetric Resonators
Creators: name: Shao, Linbo
name: Mao, Wenbo
name: Maity, Smarak
name: Sinclair, Neil
name: Hu, Yaowen
name: Yang, Lan
name: Lončar, Marko
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Acoustic waves have emerged as versatile on-chip information carriers with applications ranging from microwave filters to transducers. Nonreciprocal devices are desirable for the control and routing of high-frequency phonons. This is challenging, however, due to the linear response of most acoustic systems. Here, we leverage the strong piezoelectricity of lithium niobate to demonstrate fully tunable gain, loss, and nonlinearity for surface acoustic waves using electric circuitry. This allows the construction of a nonlinear acoustic parity-time-symmetric system and enables nonreciprocal transmission. We achieve a nonreciprocity of 10 decibels for a 200-MHz acoustic wave at a low input power of 3 $μ$W and further demonstrate one-way circulation of acoustic waves by cascading nonreciprocal devices. Our work illustrates the potential of this piezoelectric platform for on-chip phononic processing and exploration of non-Hermitian physics.
description: This is not the published version of the manuscript
Macroeconomic and Global Growth Influences on the U.S. Agricultural Trade Balance
Creators: name: Gehlhar, Mark J.
name: Dohlman, Erik
name: Gehlhar, Mark J.
name: Dohlman, Erik
Publisher: name: Unknown
Year: 2006
Subjects: International Relations/Trade

description: The U.S. agricultural trade surplus has recently declined to the lowest levels since the early-1970s, raising concerns that it foreshadows a longer term trend of waning foreign demand and greater import dependency. However, analysis of two key factors affecting agricultural trade suggests that the current downward trend in the trade balance may not continue. First, differences in global growth rates and consumption levels are leading to a major shift in the direction of U.S. exports, with the share of exports going to high income markets declining in favor of fast-growing developing markets. Consequently, U.S. export growth could accelerate in the coming decade due to rising per capita incomes and food expenditures in these markets. Second, the U.S dollar may continue to depreciate if foreign capital inflows subside, which would further spur U.S. export growth and dampen imports. Results are supported by analysis conducted with dynamic U.S. computable general equilibrium and static global trade models.
description: Replaced with revised version of paper 07/20/06.
L'aveuglement d'un Misanthrope : amour de l'autre ou amour de soi?
Creators: name: Khachehtoori, Caroline
Publisher: name: University of British Columbia
Year: 2009

description: This thesis explores the subject of love and self-love in the Misanthrope of Moliere. The central issue is whether or not the main character, Alceste, is blinded by his own self-love. If so, does this blindness lead him to madness? My analysis shows that true love is not present in this play - and the reason for that is l'amour de I'autre. That is, both Alceste and Celimene are much too self-absorbed and preoccupied with self-love to be able to honour and cherish each other. In Alceste's case, the issue of blindness and illusion are also crucial elements that influence his ability to love. In the first chapter, I shall introduce these two elements and show how I'amour-propre causes Alceste to lose sight of reality. Then, in the second chapter, different aspects of love shall be examined, allowing me to illustrate how I'amour de I'autre is not achieved. Finally, the third chapter introduces the idea of self-love and l'amour-propre, distinguishes the two and shows how they lead the two characters of the Misanthrope to reject love. The theme of Amour-propre, as well as love mistreated or misunderstood, as subjects of literary works, are widespread during the seventeenth century. The play on illusion and reality, reason and madness, as well as the element of change and instability, as they appear in the Misanthrope, are familiar ground in Baroque theatre. Indeed, as Jean-Marie Apostolides notes in an article, the theatre is a space where new thoughts and ideologies are presented, where people, places and time are transformed and tested. This is undeniably what Moliere proposes to do in the Misanthrope and this project illustrates how this great playwright achieves that goal. In this thesis, I demonstrate how he brilliantly illustrates the social and philosophical influence of his time on individuals and its consequences. How does one react to such external forces? In Alceste's and Celimene's case, they each move in completely opposite directions in reaction to these external powers. The result of this, as well as of their forced union is what gives this play its strengths. For Moliere is able to show us the humour in such a marriage between a misanthrope and a coquette.
Realskolens have, kolor. Efter skitse fra 1860.
Creators: name: Mathiesen, Henrik
Publisher: name: Unknown
Year: 1860
Subjects: Bylandskap

description: Trondhjems borgerlige realskole.
description: Tegning, kolorert. Fra Katalog over Haandtegninger: Kopi efter et billede i Hospitalet: "Hospitalskirken og Trondhjems Hospitalsstiftelses øvrige bygninger, som disse var før den store ildebrand 15. marts 1841." Datoen er feil, skal være 22.januar 1842. .
Understanding LGBTI+ Lives in Crisis
Creators: name: Waling, Andrea
name: Lim, Gene
name: Lyons, Anthony
name: Bourne, Adam
name: Dhalla, Sheila
Publisher: name: figshare
Year: 2020
Subjects: subject: 111799 Public Health and Health Services not elsewhere classified
subject: FOS: Health sciences

description: In partnership with Lifeline Australia, and with support from QLife and ACON, this research report presents findings of lesbian (L), gay (G), bisexual (B), transgender (T), intersex people (I), and other sexual identity and gender diverse individuals (+) use of crisis support services (CSS) in Australia. This is the first research of its kind in Australia that explores the needs of LGBTI+ people during a time of personal or mental health crises. It focuses on their uptake and familiarity with crisis support services in Australia, their perceptions and experiences with crisis support services, and where they might seek other professional mental health service support during a time of crisis. This study enhances the evidence base for those working to design, resource or deliver services to meet the needs of LGBTI people in Australia during times of crisis.
Advancing a system-level perspective in stakeholder theory : insights from the institutional economics of John R. Commons
Creators: name: Valentinov, Vladislav
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2024
Subjects: subject: 330

description: Stakeholder theory is a growing body of scholarly literature at the crossroads of business ethics and strategic management. This literature encompasses two distinct levels of inquiry, the levels of the firm and of the capitalistic system as a whole. At the firm level, stakeholder theory provides insight into the roots of the firm-level competitive advantage, whereas at the system level, it explores how capitalistic business can act as a social institution serving moral goals. Until now, the firm-level and system-level perspectives in stakeholder theory have not been effectively integrated. Drawing on the classical institutional economics of John Commons, the present paper elaborates the distinction between the firm and system levels of stakeholder collaboration and examines how they are interconnected. Stakeholder collaboration is shown to be shaped by larger institutions, such as habits, customs, public purposes, and prevailing perceptions of reasonableness. Whereas the system-level perspective in stakeholder theory focuses on the evolution of these larger institutions, the firm-level perspective explores how these institutions contribute to the emergence of the firm-level competitive advantage, thereby generating evolutionary forces that adjust the larger institutions.
New Precision Orbits of Bright Double-Lined Spectroscopic Binaries. I: RR Lyncis, 12 Bootis, and HR 6169
Creators: name: Tomkin, Jocelyn
name: Fekel, Francis C.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Radial velocities from the 2.1 m telescope at McDonald Observatory supplemented with radial velocities from the coude' feed telescope at KPNO provide new precise orbits for the double-lined spectroscopic binaries RR Lyn (A3/A8/A6), 12 Boo (F8IV), and HR 6169 (A2V). We derive orbital dimensions and minimum masses with accuracies of 0.06 to 0.9 %. The three systems, which have V magnitudes of 5.54, 4.83, and 6.42, respectively, are all sufficiently bright that they are easily within the grasp of modern optical interferometers and so afford the prospect, when our spectroscopic observations are complemented by interferometric observations, of fully-determined orbits, precise masses, and distances. In the case of RR Lyn, which is also a detached eclipsing binary with a well-determined orbital inclination, we are able to determine the semimajor axis of the relative orbit, a = 29.32 +/- 0.04 Rsun, primary and secondary radii of 2.57 +/- 0.02 Rsun and 1.59 +/- 0.03 Rsun, respectively; and primary and secondary masses of 1.927 +/- 0.008 Msun and 1.507 +/- 0.004 Msun, respectively. Comparison of our new systemic velocity determination, gamma = -12.03 +/- 0.04 km/s, with an earlier one, gamma = -11.61 +/- 0.30 km/s, shows no evidence of any change in the systemic velocity in the 40 years separating the two measurements, a null result that neither confirms nor contradicts the presence of the low-mass third component proposed by Khaliullin & Khaliullina (2002). Our spectroscopic orbit of 12 Boo is more precise that that of Boden et al. (2005), but confirms their results about this system. Our analysis of HR 6169 has produced a major improvement in its orbital elements. The minimum masses of the primary and secondary are 2.20 +/- 0.01 and 1.64 +/- 0.02 Msun, respectively.
description: To appear in the May AJ
Journal of Alpine Chemistry March 2018.pdf
Creators: name: Aryal, Surya
name: Mandira Pradhananga Adhikari
Publisher: name: figshare
Year: 2020
Subjects: subject: 30604 Electrochemistry
subject: FOS: Chemical sciences

description: We constructed composite electrodes: MnFe2O4/PANI and Fe2O4/Graphite and studied their electrochemical behavior for their application in microbial fuel cells. The composite materials and electrodes were characterized using powder X-ray diffraction, Fourier transform infrared spectoscopy, cyclic voltammetry and custom built microbial fuel cell. These electrodes were found to have a superior performance in microbial fuel cell in comparison to carbon electrode. These electrodes were also able to generate consistent current and potential up to 5 days in a waste water microbial fuel cell.
A symmetric function of increasing forests
Creators: name: Abreu, Alex
name: Nigro, Antonio
Publisher: name: arXiv
Year: 2020
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05A05, 05E05

description: For an indifference graph $G$ we define a symmetric function of increasing spanning forests of $G$. We prove that this symmetric function satisfies certain linear relations, which are also satisfied by the chromatic quasisymmetric function and unicellular LLT polynomials. As a consequence we give a combinatorial interpretation of the coefficients of the LLT polynomial in the elementary basis (up to a factor of a power of $(q-1)$), strengthening the description given by Alexandersson and Sulzgruber.
description: 18 pages
Charge order and superconductivity in a two-dimensional triangular lattice at n=2/3
Creators: name: Watanabe, Hiroshi
name: Ogata, Masao
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: To investigate the possibility of charge order and superconductivity in a doped two-dimensional triangular lattice, we study the extended Hubbard model with variational Monte Carlo method. At n=2/3, a commensurate filling for a triangular lattice, it is shown that the nearest-neighbor Coulomb interaction V induces honeycomb-type charge order and antiferromagnetic spin order at U>10t. We also discuss the possibility of superconductivity induced by charge fluctuation and the relation to the superconductivity in Na_{0.35}CoO_{2}1.3H_{2}O and theta-type organic condoctors.
description: 4 pages, 5 figures
Young People, Sexual Literacy, and Sources of Knowledge: A Review
Creators: name: Waling, Andrea
name: Kerr, Lucille
name: Fraser, Suzanne
name: Bourne, Adam
name: Carman, Marina
Publisher: name: figshare
Year: 2020
Subjects: subject: 111799 Public Health and Health Services not elsewhere classified
subject: FOS: Health sciences

description: This research report presents the findings of a broad literature review exploring influences on sexual health of young people, and a more targeted literature review exploring sources of sexual health information for young people. Commissioned by the Department of Health, this review sought to identify the major influences on the sexual health and well-being of young people, what sources of information young people look to for their sexual health information, and how those sources of information are integrated within the lives of young people.
Arf invariants of real algebraic curves
Creators: name: Gilmer, Patrick M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Algebraic Geometry (math.AG)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics

description: We give some new congruences for singular real algebraic curves which generalize Fiedler's congruence for nonsingular curves.
description: 14 pages
EuPPollNet : a European database of plant-pollinator networks
Creators: name: Lanuza, Jose B.
name: Knight, Tiffany M.
name: Zoller, Leana
name: Thompson, Amibeth Helene
name: Motivans Švara, Elena
name: Liu, Yicong
name: [Und Viele Weitere]
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2025
Subjects: subject: 580

description: Motivation: Pollinators play a crucial role in maintaining Earth's terrestrial biodiversity. However, rapid human-induced environmental changes are compromising the long-term persistence of plant-pollinator interactions. Unfortunately, we lack robust, generalisable data capturing how plant-pollinator communities are structured across space and time. Here, we present the EuPPollNet (European Plant-Pollinator Networks) database, a fully open European-level database containing harmonised taxonomic data on plant-pollinator interactions referenced in both space and time, along with other ecological variables of interest. In addition, we evaluate the taxonomic and sampling coverage of EuPPollNet, and summarise key structural properties in plant-pollinator networks. We believe EuPPollNet will stimulate research to address data gaps in plant-pollinator interactions and guide future efforts in conservation planning. Main Types of Variables Included: EuPPollNet contains 1,162,109 interactions between plants and pollinators from 1864 distinct networks, which belong to 52 different studies distributed across 23 European countries. Information about sampling methodology, habitat type, biogeographic region and additional taxonomic rank information (i.e. order, family, genus and species) is also provided. Spatial Location and Grain: The database contains 1214 different sampling locations from 13 different natural and anthropogenic habitats that fall in 7 different biogeographic regions. All records are geo-referenced and presented in the World Geodetic System 1984 (WGS84). Time Period and Grain: Species interaction data was collected between 2004 and 2021. Major Taxa and Level of Measurement: The database contains interaction data at the species level for 94% of the records, including a total of 1411 plant and 2223 pollinator species. The database includes data on 6% of the European species of flowering plants, 34% of bees, 26% of butterflies and 33% of syrphid species at the European level. The database was built with R and is stored in ‘.rds’ and ‘.csv’ formats. Its construction is fully reproducible and can be accessed at: https://doi.org/10.5281/zenodo.14747448.
Correct thermodynamic forces in Tsallis Thermodynamics: connection with Hill Nanothermodynamics
Creators: name: Garcia-Morales, V.
name: Cervera, J.
name: Pellicer, J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The equivalence between Tsallis Thermodynamics and Hill Nanothermodynamics is established. The correct thermodynamic forces in Tsallis thermodynamics are pointed out. Through this connection we also find a general expression for the entropic index $q$ which we illustrate with two physical examples, allowing in both cases to relate $q$ to the underlying dynamics of the Hamiltonian systems.
description: Accepted for publication in Phys. Lett. A
Validating Dynamic General Equilibrium Model Forecasts
Creators: name: Li, NaiChia
name: Roe, Terry L.
name: Li, NaiChia
name: Roe, Terry L.
Publisher: name: Unknown
Year: 2006
Subjects: Research Methods/ Statistical Methods

description: The maintained hypotheses embodied in structural general equilibrium models calibrated to data have tended to make economists and policy makers insecure regarding their empirical foundation. Advances in dynamic general equilibrium (DGE) theory and its empirical application have exacerbated this insecurity since the forecasts provide by these models brings questions of validation to the forefront. Here, methods are developed to measure the magnitude of bias in DGE forecasts that are simple to implement. We adopted the concordance correlation measure, and introduced a time function method to assess the bias in DGE forecasts. A time-series confidence interval method is also introduced to formally judge the "good" forecasts from the "bad". A calibrated DGE model is used to illustrate them. The time function method allows for the choosing of a functional form and an upper bound on forecast error. The time-series confidence interval method allows the DGE results to be evaluated by the standard of the rival time series models. If the DGE results are as good as time-series forecasts, the DGE model is a superior framework because of its advantage in providing not only "good" forecasts, but also insights into the economic structure generating the results. To illustrate these methods, we calibrate to Taiwanese data for the year 1988 a multi-sector Ramsey-based DGE model. The model is shown to forecast various dimension of the economy with surprising good, but varying accuracy. The proposed validation measures show effectiveness in distinguishing among diverse model parameter values and detecting model improvements. The measures are also statistically meaningful and require no arbitrary probabilistic assumptions on the distribution of either the results or the data.
First record of Pison koreense (Radoszkowski, 1887) from Italy (Hymenoptera: Apoidea, Crabronidae)
Creators: name: Mei, Maurizio
name: Cappellari, Andree
Publisher: name: Fragmenta Entomologica
Year: 2021

description: Pison koreense (Radoszkowski), an alien crabronid native of East Asia but introduced in North America and in Germany, was collected for the first time in Italy (Veneto).
description: Fragmenta Entomologica, Vol. 53 No. 1 (2021)
Unser ökumenisches Erbe auf dem Gebiet der internationalen Fragen
Creators: name: Fagley, Richard M.
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 3 Nr. 1 (1954): Ökumenische Rundschau, Band 3, Heft 1
The Spatial Clustering of Low Luminosity AGN
Creators: name: Constantin, Anca
name: Vogeley, Michael S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the first multi-parameter analysis of the narrow line AGN clustering properties. Estimates of the two-point correlation function (CF) based on SDSS DR2 data reveal that Seyferts are clearly less clustered than normal galaxies, while the clustering amplitude (r_0) of LINERs is consistent with that of the parent galaxy population. The similarities in the host properties (color and concentration index) of Seyferts and LINERs suggest that the difference in their r_0 is not driven by the morphology-density relation. We find that the luminosity of [O I] emission shows the strongest influence on AGN clustering, with low L([O I]) sources having the highest r_0. This trend is much stronger than the previously detected dependence on L([O III]), which we confirm. There is a strong correspondence between the clustering patterns of objects of given spectral type and their physical properties. LINERs, which exhibit high r_0, show the lowest luminosities and obscuration levels, and relatively low gas densities (n_e), suggesting that these objects harbor black holes that are relatively massive yet weakly active or inefficient in their accretion, probably due to the insufficiency of their fuel supply. Seyferts, which have low r_0, are luminous and show large n_e, suggesting that their black holes are less massive but accrete quickly and efficiently enough to clearly dominate the ionization. The low r_0 of the H II galaxies can be understood as a consequence of both the morphology-density and star formation rate-density relations, however, their spectral properties suggest that their centers hide amidst large amounts of obscuring material black holes of generally low mass whose activity remains relatively feeble. Our own Milky Way may be a typical such case.[abridged]
description: 27 pages, color figures, some are severely degraded in resolution, emulateapj. See http://www.physics.drexel.edu/~constant/work/agnclustering.ps for high resolution version. Accepted to ApJ
Determinants of Dietary Quality: Evidence from Bangladesh
Creators: name: Rashid, Dewan Arif
name: Smith, Lisa C.
name: Rahman, Tauhidur
name: Rashid, Dewan Arif
name: Smith, Lisa C.
name: Rahman, Tauhidur
Publisher: name: Unknown
Year: 2006
Subjects: Food Consumption/Nutrition/Food Safety

description: Whereas a large number of empirical studies have been devoted to analyzing consumer demand for dietary energy (or dietary quantity), much less attention has been paid to the demand for dietary quality, an equally important aspect of food security. To address this gap in the literature, this paper uses data from a nationally representative household expenditure survey conducted in Bangladesh in 2000 on the food acquisition behavior of 7,440 households over a two week period. Two indicators of dietary quality are employed: household protein availability and household diet diversity. Using two-stage least squares regression to correct for the endogeneity of income, we find significant roles of income, education, gender of household head, and prices of key foods. The determination of dietary quality in the country has a strong gender dimension. While male education plays a positive role, female education is found to have a substantially stronger influence. Further, female household headship is associated with lower dietary quality than male headship. Given the crucial roles of income and education in increasing access to a high quality diet, the results call for the continued implementation of well targeted poverty reduction and education programs. Promoting female education and addressing the unique constraints faced by female headed households with respect to diet quality could be a significant policy instrument for government and non-government organizations in addressing food insecurity in Bangladesh.
First record of Tettigonia viridissima Linnaeus, 1758 (Orthoptera: Tettigoniidae) as host of the ormiine Therobia leonidei Mesnil, 1964 (Diptera: Tachinidae)
Creators: name: Mei, Maurizio
name: Nardi, Gianluca
name: Cerreti, Pierfilippo
Publisher: name: Fragmenta Entomologica
Year: 2021

description: The first record of the bush-cricket Tettigonia viridissima Linnaeus, 1758 (Orthoptera: Tettigoniidae) as host of the tachinid Therobia leonidei Mesnil, 1964 (Diptera: Tachinidae) is reported, and the unusual case of the parasitization of a female host is briefly discussed.
description: Fragmenta Entomologica, Vol. 53 No. 1 (2021)
Details of plasmids associated with article "A comparative study of the substrate preference of the sialidases, CpNanI, HpNanH, and BbSia2 towards 2-Aminobenzamide-labeled 3'-Sialyllactose, 6'-Sialyllactose, and Sialyllacto-N-tetraose-b"; DOI: 10.1016/j.bbrep.2024.101791 and with manuscript in preparation by Madhu Lata and T.N.C. Ramya; "Tandem domains differentially affect enzyme activity in the sialidases of Glaesserella parasuis, Clostridium perfringens, and Bifidobacterium bifidum". Plasmids available in Microbial Type Culture Collection (http://www.mtccindia.res.in).
Creators: name: Ramya, TNC
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 310106
subject: Enzymes
classificationCode: 310107
subject: Glycobiology

description: This is an online resource providing details of the following plasmids reported in these works."A comparative study of the substrate preference of the sialidases, CpNanI, HpNanH, and BbSia2 towards 2-Aminobenzamide-labeled 3'-Sialyllactose, 6'-Sialyllactose, and Sialyllacto-N-tetraose-b"; DOI: 10.1016/j.bbrep.2024.101791"Tandem domains differentially affect enzyme activity in the sialidases of Glaesserella parasuis, Clostridium perfringens, and Bifidobacterium bifidum", Madhu Lata and T.N.C. Ramya, manuscript in preparation.Escherichia coli TOP 10 MU3aEscherichia coli TOP 10 HpNanD2Escherichia coli TOP 10 HpNanD3Escherichia coli TOP 10 HpNanHEscherichia coli TOP 10 MU3a-HpNanHEscherichia coli TOP 10 HpNanAEscherichia coli TOP 10 HpNanA1Escherichia coli TOP 10 HpNanA1-MU3aEscherichia coli TOP 10 MU3a-HpNanA1Escherichia coli TOP 10 HpNanA5Escherichia coli TOP 10 BbSia2aEscherichia coli TOP 10 BbSia2a1Escherichia coli TOP 10 BbSia2a2Escherichia coli TOP 10 BbSia2a3Escherichia coli TOP 10 BbSia2a4Escherichia coli TOP 10 BbSia2a5Escherichia coli TOP 10 CpNanIEscherichia coli TOP 10 CpNanI-MU3aEscherichia coli TOP 10 MU3a-CpNanIEscherichia coli TOP 10 CpNanI-HpNanD2Escherichia coli TOP 10 CpNanI-HpNanD3
The glycerol stocks of E. coli TOP10 transformed with these plasmids are available in Microbial Type Culture Collection (http://www.mtccindia.res.in).
Net Productivity of Emergent Vegetation at Horn Point Salt Marsh
Creators: name: Cahoon, Donald Richard
Publisher: name: Digital Repository at the University of Maryland
Year: 1975

description: Analyses of monthly standing crop, daily rates of production, and variations in yearly productivity for 5 production for the Spartina patens/Distichlis spicata mixture were conducted over two consecutive growing seasons for a Chesapeake Bay brackish marsh. Regression models for plant height and dry weight biomass were generated for all that the relationship between height and dry weight within each species is the same for all seasons of the year except in the species Spartina alterniflora and Phragmites australis. Positive correlation coefficients ranged from .27 for S. alterniflora to .96 for P. australis with the other species having intermediate value. Overall, production at Horn Point is lower than most other values in the literature with the 2-year average for S. alterniflora (676 g/m2) being 1/2 the average for the Atlantic Coast but the 2-year average for S. patens (628 g/m2) being slightly higher than its Atlantic Coast average. On a square meter basis, the primary producers rank in the following order of importance for the two year average of standing crop: Typha angustifolia (985 g/m2), Phragmites australis (892 g/m2), S. alterniflora/Amaranthus cannabinus (676 g/m2), S. patens/D. spicata (628 g/m2), and Hibiscus moscheutos (531 g/m2). However, the most important zones in terms of areally weighted production (in metric tons) for 1973 at Horn Point Marsh are the S. patens/D. spicata (7.61), H. mocheutos (5.07), S. alterniflora/A. cannabinus (3.22), P. australis (0.659), and T. angustifolia/H. moscheutos (0.644). In the brackish marsh (S. patens/D. spicata) exclosure experiments demonstrated that almost 100% of the net primary production (NPP) passes through the detritus food chain but in the contiguous fresh marsh (H. moscheutos) 37% of the NPP is utilized by the grazing food chain. Underground production for S. patens/D. spicata was determined by an experimental approach involving transplantations of underground material and a dry weight shoot:root ratio of 1:16 was determined over a twelve month period. An efficiency rate for conversion of visible solar radiation to plant production in 1974 ranged from 0.11% for H. moscheutos in the Typha/Hibiscus zone to 1.12% for the Typha angustifolia/Hibiscus moscheutos mixture.
Incentive Compatible Mechanism Design for Discrete Choice Surveys
Creators: name: Das, Chhandita
name: Anderson, Christopher M.
name: Swallow, Stephen K.
name: Das, Chhandita
name: Anderson, Christopher M.
name: Swallow, Stephen K.
Publisher: name: Unknown
Year: 2006
Subjects: Research Methods/ Statistical Methods

description: This paper develops an incentive compatible mechanism for discrete choice questions when the payment is through voluntary contribution. To achieve this we adapt Clark's pivotal condition mechanism to discrete choice questions. We develop a formal proof of the incentive compatibility of the mechanism. We design an induced value experiment to test the incentive compatibility of the mechanism, and compare it's performance with the performances of both open ended voluntary contribution questions and close ended questions, with provision point and money back guarantee assigned to each of them. We find that the discrete choice methods do better than the open ended question in terms of both truth revelation and higher willingness to pay. Although, our incentive compatible discrete choice mechanism performs only marginally better than the close ended PPMBG questions, the theoretical incentive compatibility property provides a motivation for it's use in public good valuation.
description: Paper removed by author 02/04/09.
Observation, modeling, and temperature dependence of doubly peaked electric fields in irradiated silicon pixel sensors
Creators: name: Swartz, M.
name: Chiochia, V.
name: Allkofer, Y.
name: Bortoletto, D.
name: Cremaldi, L.
name: Cucciarelli, S.
name: Dorokhov, A.
name: Hoermann, C.
name: Kim, D.
name: Konecki, M.
name: Kotlinski, D.
name: Prokofiev, K.
name: Regenfus, C.
name: Rohe, T.
name: Sanders, D. A.
name: Son, S.
name: Speer, T.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We show that doubly peaked electric fields are necessary to describe grazing-angle charge collection measurements of irradiated silicon pixel sensors. A model of irradiated silicon based upon two defect levels with opposite charge states and the trapping of charge carriers can be tuned to produce a good description of the measured charge collection profiles in the fluence range from 0.5x10^{14} Neq/cm^2 to 5.9x10^{14} Neq/cm^2. The model correctly predicts the variation in the profiles as the temperature is changed from -10C to -25C. The measured charge collection profiles are inconsistent with the linearly-varying electric fields predicted by the usual description based upon a uniform effective doping density. This observation calls into question the practice of using effective doping densities to characterize irradiated silicon.
description: 8 pages, LaTeX document, 10 figures. Presented at Pixel 2005 Workshop, Bonn, Sept 2005. Small cosmetic revisions in response to referee comments and to fix broken reference links