cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Heavy Quark Parton Distribution Functions
Creators: name: Kretzer, Stefan
name: Olness, Fredrick I.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present the CTEQ6HQ parton distribution set which is determined in the general variable flavor number scheme which incorporates heavy flavor mass effects; hence, this set provides advantages for precision observables which are sensitive to charm and bottom quark masses. We describe the analysis procedure, examine the predominant features of the new distributions, and compare with previous distributions. We also examine the uncertainties of the strange quark distribution and how the the recent NuTeV dimuon data constrains this quantity.
description: 5 pages, 2 figures; contribution to the XIII International Workshop on Deep Inelastic Scattering (DIS 2005)
Path Integral Approach for Spaces of Non-constant Curvature in Three Dimensions
Creators: name: Grosche, Christian
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this contribution I show that it is possible to construct three-dimensional spaces of non-constant curvature, i.e. three-dimensional Darboux-spaces. Two-dimensional Darboux spaces have been introduced by Kalnins et al., with a path integral approach by the present author. In comparison to two dimensions, in three dimensions it is necessary to add a curvature term in the Lagrangian in order that the quantum motion can be properly defined. Once this is done, it turns out that in the two three-dimensional Darboux spaces, which are discussed in this paper, the quantum motion is similar to the two-dimensional case. In $\threedDI$ we find seven coordinate systems which separate the Schrödinger equation. For the second space, $\threedDII$, all coordinate systems of flat three-dimensional Euclidean space which separate the Schrödinger equation also separate the Schrödinger equation in $\threedDII$. I solve the path integral on $\threedDI$ in the $(u,v,w)$-system, and on $\threedDII$ in the $(u,v,w)$-system and in spherical coordinates.
Serendipity versus proactive search of elusive species - the Encounter Predictability Scorecard (EPS), a new customizable tool for field researchers
Creators: name: Brizio, Cesare
name: Tormen, Nicola
name: Ruzzier, Enrico
Publisher: name: Fragmenta Entomologica
Year: 2020

description: Since field research requires a lot of effort, time, economic and resource investment, it necessitates fact-based tools for a sound preliminary evaluation of the actual possibility to achieve its objective. Such a tool, the Encounter Predictability Scorecard (EPS), is here described for the first time. The rediscovery of the endemic Orthopteran Uromenus annae proved that field research is performed under strong biases including blind faith in previous scientific literature, and expectations about the biology and ecology of the target species. U. annae escaped field researches in the documented localities, and was rediscovered serendipitously in two new unrelated locations. This casts doubt on the capacity of field researchers to assess, even in general terms, the possibility of success of field expeditions. We conceived a method inspired by the performance management tools from the world of corporate strategy: scorecards. The most famous among closed-choice, qualitative-quantitative checklists, is the Balanced Scorecard, based on original work from the late 1980’s. We adapted those methods to the constraints of field research, and field-tested in a retrospective way for the search of U. annae. The EPS is freely available as a digital spreadsheet, and can be tested and customised at any time. Although in its infancy, the EPS looks like a promising operational tool to help saving time and money, and to identify which objectives and organizational setups are more promising. Besides providing a clearer, more rational basis for operational decisions, the straightforward compilation of an EPS may also mitigate the impact of cognitive biases.
description: Fragmenta Entomologica, Vol. 52 No. 2 (2020)
Pressure-driven flow of solid helium
Creators: name: Day, James
name: Beamish, John
Publisher: name: arXiv
Year: 2006
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The recent torsional oscillator results of Kim and Chan suggest a supersolid phase transition in solid 4He. We have used a piezoelectrically driven diaphragm to study the flow of solid helium through an array of capillaries. Our measurements showed no indication of low temperature flow, placing stringent restrictions on supersolid flow in response to a pressure difference. The average flow speed at low temperatures was less than 1.2x10-14 m/s, corresponding to a supersolid velocity at least 7 orders of magnitude smaller than the critical velocities inferred from the torsional oscillator measurements.
description: 4 pages, 3 figures
Revision of the Calotheca nigrotessellata species group from southern Africa, with description of two new species (Coleoptera: Chrysomelidae, Galerucinae, Alticini)
Creators: name: D'Alessandro, Paola
name: Iannella, Mattia
name: Grobbelaar, Elizabeth
name: Biondi, Maurizio
Publisher: name: Fragmenta Entomologica
Year: 2020

description: Calotheca Heyden is a mostly sub-Saharan flea beetle genus, comprising twenty-seven species previously included in Blepharida Chevrolat. The examination of new material is revealing a high species richness, as there is high intraspecific variability. Calotheca luteomaculata sp. nov. from Zimbabwe and the Republic of South Africa, and C. luteotessellata sp. nov. from the Republic of South Africa are here described and attributed to the C. nigrotessellata (Baly) species group, mainly based on genitalic characters. Photographs of the main diagnostic characters are supplied, including the median lobe of the aedeagus and spermatheca. A forward stepwise discriminant function analysis, using morphometric variables, has been performed. It supports the attribution of the examined specimens to the three species here considered, thus adding characters useful for their identification. Information on geographical distribution and host plants are also provided.
description: Fragmenta Entomologica, Vol. 52 No. 2 (2020)
Re-examination of the genus-level taxonomy of the pollen beetle subfamily Meligethinae – Part 1. Sagittogethes Audisio and Cline 2009 and allied genera; with description of a new genus (Coleoptera: Nitidulidae)
Creators: name: Liu, Meike
name: Huang, Min
name: Cline, Andrew Richard
name: Cardoli, Paolo
name: Audisio, Paolo
name: Sabatelli, Simone
Publisher: name: Fragmenta Entomologica
Year: 2020

description: Recent molecular and morphological data derived from members of the pollen-beetle subfamily Meligethinae suggest the need to separate the genus Sagittogethes Audisio and Cline, 2009, including species mostly distributed in Western Palaearctic areas, into two distinct (although related) genera, Sagittogethes and Teucriogethes gen. n. This new genus, comprising the Western European Meligethes obscurus Erichson, 1845 as its type species, includes less than ten species distributed between the Iberian Peninsula and North Africa westward, and China and Japan eastward. All inclusive species utilize members of the genus Teucrium L. (Lamiacaeae: Ajugoideae) as larval host-plants. Morphological and bionomical information, and molecular data clearly demonstrate the necessity for updating the taxonomic position of the two clades. Based on molecular evidence, the new genus represents the sister-group of Thymogethes Audisio and Cline, 2009, while the sister-group relationships of the remaining Sagittogethes taxa with other Lamiaceae-associated genera of Meligethinae remain uncertain. Within the new genus, the relictual and rare Western Mediterranean species T. minutus (C.N.F. Brisout de Barneville, 1863) seems to occupy an isolated position.
description: Fragmenta Entomologica, Vol. 52 No. 1 (2020)
The Local Group Census: searching for PNe in IC 1613, WLM and GR8
Creators: name: Magrini, L.
name: Corradi, R. L. M.
name: Greimel, R.
name: Leisy, P.
name: Mampaso, A.
name: Perinotto, M.
name: Walsh, J. R.
name: Walton, N. A.
name: Zijlstra, A. A.
name: Minniti, D.
name: Mora, M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In the framework of the Local Group Census (LGC), a survey of the Local Group (LG) galaxies above Dec=$-30^\circ$, which is aimed at surveying their populations with strong emission lines, we have searched for planetary nebulae (PNe) in the low-metallicity dwarf irregular galaxies IC1613, WLM, GR8. Two new candidate PNe have been found in IC1613, one in WLM and none in GR8. The observations presented in this paper, together with the previous results from the LGC, represent the first step in the study of the PN population in low-metallicity, dwarf irregular galaxies of the Local Group. They will be followed by deep spectroscopy to confirm their nature and to study their physical-chemical properties. We used the observed number of PNe in each LG galaxy to estimate a lower limit to the mass of the intermediate-age population which was compared to the Star Formation Rate (SFR) of LG dwarf galaxies. These results are in agreement with those from accurate star formation history (SFH) analysis for these small galaxy systems.
description: 10 pages, 6 figures, MNRAS accepted
Filtrations on block subalgebras of reduced universal enveloping algebras
Creators: name: Ionov, Andrei
name: Pentland, Dylan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: We study the interaction between the block decompositions of reduced universal enveloping algebras in positive characteristic, the PBW filtration, and the nilpotent cone. We provide two natural versions of the PBW filtration on the block subalgebra $A_λ$ of the restricted universal enveloping algebra $\mathcal{U}_χ(\mathfrak{g})$ and show these are dual to each other. We also consider a shifted PBW filtration for which we relate the associated graded algebra to the algebra of functions on the Frobenius neighbourhood of $0$ in the nilpotent cone and the coinvariants algebra corresponding to $λ$. In the case of $\mathfrak{g}=\mathfrak{sl}_2(k)$ in characteristic $p>2$ we determine the associated graded algebras of these filtrations on block subalgebras of $\mathcal{U}_0(\mathfrak{sl}_2)$. We also apply this to determine the structure of the adjoint representation of $\mathcal{U}_0(\mathfrak{sl}_2)$.
The Murmur of the Sleeping Black Hole: Detection of Nuclear Ultraviolet Variability in LINER Galaxies
Creators: name: Maoz, Dan
name: Nagar, Neil M.
name: Falcke, Heino
name: Wilson, Andrew S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: LINER nuclei, which are present in many nearby galactic bulges, may be the manifestation of low-rate or low-radiative-efficiency accretion onto supermassive central black holes. However, it has been unclear whether the compact UV nuclear sources present in many LINERs are clusters of massive stars, rather than being directly related to the accretion process. We have used HST to monitor the UV variability of a sample of 17 galaxies with LINER nuclei and compact nuclear UV sources. Fifteen of the 17 galaxies were observed more than once, with two to five epochs per galaxy, spanning up to a year. We detect significant variability in most of the sample, with peak-to-peak amplitudes from a few percent to 50%. In most cases, correlated variations are seen in two independent bands (F250W and F330W). Comparison to previous UV measurements indicates, for many objects, long-term variations by factors of a few over decade timescales. Variability is detected in LINERs with and without detected compact radio cores, in LINERs that have broad H-alpha wings detected in their optical spectra (``LINER 1's''), and in those that do not (``LINER 2s''). This variability demonstrates the existence of a non-stellar component in the UV continuum of all types, and sets a lower limit to the luminosity of this component. We note a trend in the UV color (F250W/F330W) with spectral type - LINER 1s tend to be bluer than LINER 2s. This trend may indicate a link between the shape of the nonstellar continuum and the presence or the visibility of a broad-line region. In one target, the post-starburst galaxy NGC 4736, we detect variability in a previously noted UV source that is offset by 2.5" (60 pc in projection) from the nucleus. This may be the nearest example of a binary active nucleus, and of the process leading to black hole merging.
description: accepted to ApJ
[Elicitation of vocabulary, verb paradigms, biographical notes, story "The Rainbow"]
Creators: name: Cortés López, Don Pascual
name: García Cortés, María Agustina
name: McFarland, Teresa
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2020
Subjects: subject: tlp

description: 10 WAV files. Corresponds to pp. 108-121 of related field notes. Story is file 008, with transcription and translation on p. 117.
The hyperbolic Anderson model: Moment estimates of the Malliavin derivatives and applications
Creators: name: Balan, Raluca M.
name: Nualart, David
name: Quer-Sardanyons, Lluís
name: Zheng, Guangqu
Publisher: name: arXiv
Year: 2021
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: In this article, we study the hyperbolic Anderson model driven by a space-time \emph{colored} Gaussian homogeneous noise with spatial dimension $d=1,2$. Under mild assumptions, we provide $L^p$-estimates of the iterated Malliavin derivative of the solution in terms of the fundamental solution of the wave solution. To achieve this goal, we rely heavily on the \emph{Wiener chaos expansion} of the solution. Our first application are \emph{quantitative central limit theorems} for spatial averages of the solution to the hyperbolic Anderson model, where the rates of convergence are described by the total variation distance. These quantitative results have been elusive so far due to the temporal correlation of the noise blocking us from using the Itô calculus. A \emph{novel} ingredient to overcome this difficulty is the \emph{second-order Gaussian Poincaré inequality} coupled with the application of the aforementioned $L^p$-estimates of the first two Malliavin derivatives. Besides, we provide the corresponding functional central limit theorems. As a second application, we establish the absolute continuity of the law for the hyperbolic Anderson model. The $L^p$-estimates of Malliavin derivatives are crucial ingredients to verify a local version of Bouleau-Hirsch criterion for absolute continuity. Our approach substantially simplifies the arguments for the one-dimensional case, which has been studied in the recent work by Balan, Quer-Sardanyons and Song (2019).
description: Version 2: updated references, fixed typos. Page numbers are different from published version
Reinforcement Learning in Deep Structured Teams: Initial Results with Finite and Infinite Valued Features
Creators: name: Arabneydi, Jalal
name: Roudneshin, Masoud
name: Aghdam, Amir G.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Multiagent Systems (cs.MA)
subject: FOS: Computer and information sciences

description: In this paper, we consider Markov chain and linear quadratic models for deep structured teams with discounted and time-average cost functions under two non-classical information structures, namely, deep state sharing and no sharing. In deep structured teams, agents are coupled in dynamics and cost functions through deep state, where deep state refers to a set of orthogonal linear regressions of the states. In this article, we consider a homogeneous linear regression for Markov chain models (i.e., empirical distribution of states) and a few orthonormal linear regressions for linear quadratic models (i.e., weighted average of states). Some planning algorithms are developed for the case when the model is known, and some reinforcement learning algorithms are proposed for the case when the model is not known completely. The convergence of two model-free (reinforcement learning) algorithms, one for Markov chain models and one for linear quadratic models, is established. The results are then applied to a smart grid.
description: This version corrects some typographical errors
MID TERM EVALUATION OF RDPs IN ITALY: COMPARING MODELS
Creators: name: Fucilli, Vincenzo
name: De Blasi, Giuseppe
name: Acciani, Claudio
name: Fucilli, Vincenzo
name: De Blasi, Giuseppe
name: Acciani, Claudio
Publisher: name: Unknown
Year: 2008
Subjects: subject: Community/Rural/Urban Development
subject: Research Methods/ Statistical Methods
subject: Evaluation
subject: Rural Development Plans
subject: Mid Term
subject: Metaevaluation

description: With the reforms of Structural Funds there has been a considerable tightening of the guiding principles of Community actions. Among these, a primary role has been given to evaluation. In this context, the paper deals with what has been realized for the evaluation of rural development policy, comparing various experiences in Italy with reference to the Rural Development Plans. The aim is to verify, on the basis of (meta) criteria, the methodological contents of the mid term evaluation reports of 14 RDPs in the centre-north of Italy. Through the analyses and the comparisons of these reports, the paper is an attempt to reconstruct the “quality” of the evaluations with specific reference to the methodological aspects, the models and the procedures adopted by the evaluators.
Numerical evaluation of loop integrals
Creators: name: Anastasiou, Charalampos
name: Daleo, Alejandro
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a new method for the numerical evaluation of arbitrary loop integrals in dimensional regularization. We first derive Mellin-Barnes integral representations and apply an algorithmic technique, based on the Cauchy theorem, to extract the divergent parts in the epsilon->0 limit. We then perform an epsilon-expansion and evaluate the integral coefficients of the expansion numerically. The method yields stable results in physical kinematic regions avoiding intricate analytic continuations. It can also be applied to evaluate both scalar and tensor integrals without employing reduction methods. We demonstrate our method with specific examples of infrared divergent integrals with many kinematic scales, such as two-loop and three-loop box integrals and tensor integrals of rank six for the one-loop hexagon topology.
New or little-known bees from Sicily (Hymenoptera: Apoidea)
Creators: name: Bella, Salvatore
name: Catania, Roberto
name: Nobile, Vittorio
name: Mazzeo, Gaetana
Publisher: name: Fragmenta Entomologica
Year: 2020

description: The authors report newly recorded species of bees (Hymenoptera, Apoidea) on the Volcan Etna (Sicily). A total of ten species belonging to three families are recorded: Halictidae (8 species), Megachilidae (1 species), and Apidae (1 species). Pseudapis valga (Gerstaecker), Lasioglossum convexiusculum (Schenck) (Halictidae), Hoplitis laevifrons (Morawitz) (Megachilidae) and Tarsalia ancyliformis Popov (Apidae), are reported for the first time for Sicily and the presence of other bee species is confirmed for the Island. Furthermore, this is the first record of the genus Tarsalia Morawitz for the fauna of Sicily. For each species data are given in relation to the altitudinal level, the plants visited, and the ecological quality of the sites where the specimens were found.
description: Fragmenta Entomologica, Vol. 52 No. 1 (2020)
Competition-Based Environmental Policy: An Analysis of Farmland Preservation in Maryland
Creators: name: Horowitz, John K.
name: Lynch, Lori
name: Stocking, Andrew
name: Horowitz, John K.
name: Lynch, Lori
name: Stocking, Andrew
Publisher: name: Unknown
Year: 2007
Subjects: subject: Environmental Economics and Policy
subject: Land Economics/Use
subject: farmland preservation
subject: first-price auctions
subject: interdependent values
subject: winners curse

description: This paper studies bidder behavior in an innovative program in which farmers compete to sell their development rights to the State. We derive a reduced form bidding model that includes both private value and common value components. This model allows us to estimate the role of bidder competition, the winner’s curse correction, and the underlying distribution of private values. We find that competition reducelers adjust for a possible winner’s curse by increasing their bids by roughly 10 percent over their reservation values. Using the inferred reservation values, we compare this program to an alternative take-it-or-leave-it offer. We find that a take-it-or-leave-it offer of 50 percent of development values would have preserved more farmland for an equivalent budget than the current reverse auction setup.
Hoverfly diversity in Mareschi alluvial alder forest (Piedmont, Italy), and “Syrph the Net” ecological analysis (Diptera: Syrphidae)
Creators: name: Maritano, Umberto
name: Sommaggio, Daniele
Publisher: name: Fragmenta Entomologica
Year: 2020

description: This paper presents the results of the one-year field research into the hoverfly (Diptera: Syrphidae) in Mareschi, in Sant’Antonino di Susa municipality. The sampling activities were performed with Malaise trap, emerging trap, and entomological net. Monitoring was carried out from March to October 2018 in the over-mature alder forest, classified under the Natura 2000 Habitat code 91E0, considered as a priority in EU 92/43 Habitats Directive. Preliminary data from July to October 2017 are also included. Overall, 74 species were recorded, with the first records of 7 species for Piedmont. Some of the observed species in Mareschi are of primary conservation importance, such as Arctophila superbiens (Müller, 1776), Sphiximorpha subsessilis (Illiger in Rossi, 1807) and Temnostoma bombylans (Fabricius, 1805). The use of Syrph the Net analysis and the comparison with other woods in Po Plain confirm the high naturalistic value of the studied area.
description: Fragmenta Entomologica, Vol. 52 No. 1 (2020)
A Survey of Dataspace Connector Implementations
Creators: name: Dam, Tobias
name: Klausner, Lukas Daniel
name: Neumaier, Sebastian
name: Priebe, Torsten
Publisher: name: arXiv
Year: 2023
Subjects: subject: Emerging Technologies (cs.ET)
subject: FOS: Computer and information sciences

description: The concept of dataspaces aims to facilitate secure and sovereign data exchange among multiple stakeholders. Technical implementations known as "connectors" support the definition of usage control policies and the verifiable enforcement of such policies. This paper provides an overview of existing literature and reviews current open-source dataspace connector implementations that are compliant with the International Data Spaces (IDS) standard. To assess maturity and readiness, we review four implementations with regard to their architecture, underlying data model and usage control language.
description: 12 pages, 5 figures, CEUR-WS: https://ceur-ws.org/Vol-3606/paper41.pdf
Overview of AuTexTification at IberLEF 2023: Detection and Attribution of Machine-Generated Text in Multiple Domains
Creators: name: Sarvazyan, Areg Mikael
name: González, José Ángel
name: Franco-Salvador, Marc
name: Rangel, Francisco
name: Chulvi, Berta
name: Rosso, Paolo
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: This paper presents the overview of the AuTexTification shared task as part of the IberLEF 2023 Workshop in Iberian Languages Evaluation Forum, within the framework of the SEPLN 2023 conference. AuTexTification consists of two subtasks: for Subtask 1, participants had to determine whether a text is human-authored or has been generated by a large language model. For Subtask 2, participants had to attribute a machine-generated text to one of six different text generation models. Our AuTexTification 2023 dataset contains more than 160.000 texts across two languages (English and Spanish) and five domains (tweets, reviews, news, legal, and how-to articles). A total of 114 teams signed up to participate, of which 36 sent 175 runs, and 20 of them sent their working notes. In this overview, we present the AuTexTification dataset and task, the submitted participating systems, and the results.
description: Accepted at SEPLN 2023
Equilibrium Welfare Impacts of the 1990 Clean Air Act Amendments in the Los Angeles Area
Creators: name: Tra, Constant I.
name: Tra, Constant I.
Publisher: name: Unknown
Year: 2007
Subjects: subject: Environmental Economics and Policy
subject: benefit analysis
subject: ozone improvement
subject: locational equilibrium
subject: discrete choice

description: This study develops a discrete choice locational equilibrium model to evaluate the benefits of the air quality improvements that occurred in the Los Angeles area following the 1990 Clean Air Act Amendments (CAAA). The discrete choice equilibrium approach accounts for the fact that air quality improvements brought about by the 1990 CAAA will change housing choices and prices. The study provides the first application of the discrete choice equilibrium framework (Anas, 1980, Bayer et al., 2005) to the valuation of large environmental changes. The study also provides new evidence for the distributional welfare impacts of the 1990 CAAA in the Los Angeles area. Households’ location choices are modeled according to the random utility framework of McFadden (1973) and the differentiated product specification of Berry, Levinsohn and Pakes (1995). Findings suggest that the air quality improvements that occurred in the Los Angeles area between 1990 and 2000 provided an average equilibrium welfare benefit of $1,800 to households. In contrast, average benefits are $1,400 when equilibrium price effects are not accounted, demonstrating that ignoring equilibrium effects will likely underestimate the benefits of large environmental changes. In addition, we find that the equilibrium welfare impacts of the 1990 CAAA in the Los Angeles area varied significantly across income groups.
Economic Benefits of Farmland Preservation: Evidence from the United States
Creators: name: Lynch, Lori
name: Duke, Joshua M.
name: Lynch, Lori
name: Duke, Joshua M.
Publisher: name: Unknown
Year: 2007
Subjects: subject: Land Economics/Use
subject: Farmland preservation
subject: food security
subject: environmental amenities
subject: rural amenities

description: For the last 50 years, local, state and the federal governments have expressed concerns about farmland retention. Four benefits have been used to warrant farmland preservation programs: food security and local food supply, viable local agricultural economy, environmental and rural amenities, and sound fiscal policy and orderly development. We explore the available evidence of how well farmland preservation programs have provided these benefits. Research suggests that people clearly desire farmland preservation programs and express a willingness to pay for the environmental and rural amenities provided. Some evidence has been found that farmland preservation programs can benefit the local economy and/or have no negative impacts relative to other economic development opportunities. The programs appear to slow farmland loss and thus may be having an impact on local government expenditures and orderly development, but the evidence here is limited due to methodological issues.
Nutrient Trading, the Flush Tax, and Maryland's Nitrogen Emissions to the Chesapeake Bay
Creators: name: Hanson, James C.
name: McConnell, Kenneth E.
name: Hanson, James C.
name: McConnell, Kenneth E.
Publisher: name: Unknown
Year: 2007
Subjects: subject: Environmental Economics and Policy
subject: Chesapeake Bay
subject: cover crops
subject: nitrogen abatement
subject: nutrient trading
subject: sewage treatment plants
subject: trading ratios
subject: water pollution

description: We investigate nutrient trading for point and non-point sources for the Bay Restoration Fund in Maryland. We demonstrate how to use the proceeds from the tax revenue to mimic trading high-cost upgrades of sewage treatment plants for low-cost winter cover crops. Under an optimistic assumption about costs for non-point sources, we calculate that abatement could be increased by more than 50%, while in a pessimistic scenario, abatement could be increased by 2%. We also explore the role of uncertainty in determining the appropriate trading ratio between point and non-point sources of pollution, showing that the higher uncertainty associated with non-point sources should induce a lower trading ratio.
Christlicher Ökumenismus und Säkularökumenismus
Creators: name: Thomas, Madathilparampil Mamen
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 28 Nr. 2 (1979): Ökumenische Rundschau, Band 28, Heft 2
Analytic formula for the dynamics around inflation end and implications on primordial gravitational waves
Creators: name: Ito, Asuka
name: Soda, Jiro
name: Yamaguchi, Masahide
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We argue that primordial gravitational waves have a spectral break and its information is quite useful for exploring the early universe. Indeed, such a spectral break can be a fingerprint of the end of inflation, and the amplitude and the frequency at the break can tell us the energy scale of inflation and the reheating temperature simultaneously. In order to investigate the spectral break, we give an analytic formula for evolution of the Hubble parameter around the end of inflation where the slow roll approximation breaks down. We also evaluate the spectrum of primordial gravitational waves around the break point semi-analytically using the analytic formula for the inflation dynamics.
description: 7 pages, 2 figures
Tainted blood, tainted knowledge : contesting scientific evidence at the Krever Inquiry
Creators: name: Paterson, Timothy Murray
Publisher: name: University of British Columbia
Year: 2009

description: In this dissertation I provide an ethnographic account of the testimony of four expert witnesses who appeared before the Commission of Inquiry on the Blood System in Canada (the Krever Inquiry) as they described the production of scientific knowledge and the role that knowledge played in the struggle to protect the blood supply from being contaminated by AIDS during the early 1980's. In doing so, I bring together the experts' testimony with contemporary documents gathered by the Commission and interviews I conducted with participants in the proceedings. Using insights drawn from the disciplines of anthropology, sociology, and history, I explore what the witnesses' accounts reveal about their understandings of their professional world and its relationships with other worlds, especially that of public health policy making. The Krever Inquiry offered a valuable opportunity for carrying out such an investigation. It provided a site where science was not only used, it was talked about. The Inquiry invited those involved in the blood system in the early 1980's to reflect upon and explain the beliefs and actions which surrounded one of the worst public health disasters in Canadian history and it asked the witnesses how similar catastrophes could be avoided in the future. As a result, many of the issues addressed at the hearings reflect matters of current concern in public health and medicine. The Inquiry addressed difficult issues surrounding the nature of scientific knowledge and its application in health decision-making and policy formulation. This study, therefore, may be of interest to those dealing with the problems surrounding uncertainty and the management of public health crises. It may also be of interest to those dealing with conflicts rising out of the intersection of different worlds of experience and practice, as well as to those involved in the current initiatives to both make medical and public health institutions more proactive, and inclusive, and public health decision-making more transparent.
Quantifying nematic order in evaporation-driven self-assembly of Halloysite nanotubes: Nematic islands and critical aspect ratio
Creators: name: Dadwal, Arun
name: Prasher, Meenu
name: Sengupta, Pranesh
name: Kumar, Nitin
Publisher: name: arXiv
Year: 2023
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Halloysite nanotubes (HNTs) are naturally occurring clay minerals found in Earth's crust that typically exist in the form of high aspect-ratio nanometers-long rods. Here, we investigate the evaporation-driven self-assembly process of HNTs and show that a highly polydisperse collection of HNTs self-sort into a spatially inhomogeneous structure, displaying a systematic variation in the resulting nematic order. Through detailed quantification using nematic order parameter $S$ and nematic correlation functions, we show the existence of well-defined isotropic-nematic transitions in the emerging structures. We also show that the onset of these transitions gives rise to the formation of nematic islands - phase coexisting ordered nematic domains surrounded by isotropic phase - which grow in size with $S$. Detailed image analysis indicates a strong correlation between local $S$ and the local aspect ratio, $L/D$, with nematic order possible only for rods with $L/D \ge 6.5 \pm 1$. Finally, we conclude that observed phenomena directly result from aspect ratio-based sorting in our system. Altogether, our results provide a unique method of tuning the local microscopic structure in self-assembled HNTs using $L/D$ as an external parameter.
description: 9 pages, 4 figures
New records of Orthoptera from Molise (Southern Italy) with an updated provisional checklist
Creators: name: Ceccolini, Filippo
name: Pizzocaro, Lucia
name: Cianferoni, Fabio
Publisher: name: Fragmenta Entomologica
Year: 2020

description: New chorological data on some species of Orthoptera from the Italian region Molise are given, and 11 species are recorded as new for this area. Moreover, an updated checklist of the Orthoptera thus far recorded from Molise is provided.
description: Fragmenta Entomologica, Vol. 52 No. 1 (2020)
Agricultural Cooperatives and Unions of Cooperatives in Bosnia and Herzegovina: Opportunities for Improvement
Creators: name: Hanson, James C.
name: Matavulj, Miodrag
name: Manzuk, Gregory
name: Richardson, John G.
name: Hanson, James C.
name: Matavulj, Miodrag
name: Manzuk, Gregory
name: Richardson, John G.
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agribusiness
subject: Bosnia and Herzegovina
subject: agricultural cooperatives
subject: union of agricultural cooperatives
subject: agricultural development

description: Given the breakup of Yugoslavia and the ensuing war, there has been massive changes in the agricultural structure in Bosnia and Herzegovina. In particular, the remade cooperatives and the unions of cooperatives that are supposed to serve them are struggling. This paper examines the needs of the agricultural cooperatives to be more successful and identifies what support will likely come from the unions of cooperatives and what must come from other sources. Data was obtained in three ways: 1) questionnaires to a large group of cooperatives, 2) focus groups with a smaller number of cooperatives, and 3) personal interviews with union of cooperatives representatives. The findings indicated that the unions of cooperatives are working on institutional issues such as registering and auditing cooperatives, and resolving land ownership conflicts. However, since the cooperatives are not familiar with the market economy, they also need help in business management, marketing, legal services, and organizational effectiveness. It is not likely that the unions will be able to help the cooperatives with these issues. New partners such as the Ministry of Agriculture, colleges of agriculture, or non-governmental organizations should be tasked with providing this educational support.
Classification of irreducible Harish-Chandra modules over the loop-Virasoro algebra
Creators: name: Guo, Xiangqian
name: Lu, Rencai
name: Zhao, Kaiming
Publisher: name: arXiv
Year: 2008
Subjects: subject: Representation Theory (math.RT)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics

description: The loop-Virasoro algebra is the Lie algebra of the tensor product of the Virasoro algebra and the Laurent polynomial algebra. This paper classifies irreducible Harish-Chandra modules over the loop-Virasoro algebra, which turn out to be highest weight modules, lowest weight modules and evaluation modules of the intermediate series (all wight spaces are 1-dimensional). As a by-product, we obtain a classification of irreducible Harish-Chandra modules over truncated Virasoro algebras. We also determine the necessary and sufficient conditions for highest weigh irreducible modules over the loop-Virasoro algebra to have all finite dimensional weight spaces, as well as the necessary and sufficient conditions for highest weigh Verma modules to be irreducible.
description: 27
Spiders from Molise (Italy): state of knowledge, new faunistic data and taxonomic notes (Arachnida: Araneae)
Creators: name: Trotta, Alessio
Publisher: name: Fragmenta Entomologica
Year: 2020

description: The spiderfauna of Molise includes 98 species belonging to 64 genera and 21 families; 48 species are firstly reported for this region, 19 are earlier record confirmed and 31 are earlier record to be confirmed. The following new combination and new synonymies are proposed: Zelotes caprearum (Pavesi, 1875) = Zelotes caporiaccoi Denis, 1953 (not Zelotes caporiaccoi Roewer, 1951) syn. n. = Zelotes denapes Platnick, 1993 syn. n.; Cozyptila nigristernum (Dalmas, 1922) comb. n. = Cozyptila thaleri Marusik and Kovblyuk, 2005 syn. n.
description: Fragmenta Entomologica, Vol. 52 No. 1 (2020)
Designing locally maximally entangled quantum states with arbitrary local symmetries
Creators: name: Słowik, Oskar
name: Sawicki, Adam
name: Maciążek, Tomasz
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: One of the key ingredients of many LOCC protocols in quantum information is a multiparticle (locally) maximally entangled quantum state, aka a critical state, that possesses local symmetries. We show how to design critical states with arbitrarily large local unitary symmetry. We explain that such states can be realised in a quantum system of distinguishable traps with bosons or fermions occupying a finite number of modes. Then, local symmetries of the designed quantum state are equal to the unitary group of local mode operations acting diagonally on all traps. Therefore, such a group of symmetries is naturally protected against errors that occur in a physical realisation of mode operators. We also link our results with the existence of so-called strictly semistable states with particular asymptotic diagonal symmetries. Our main technical result states that the $N$th tensor power of any irreducible representation of $\mathrm{SU}(N)$ contains a copy of the trivial representation. This is established via a direct combinatorial analysis of Littlewood-Richardson rules utilising certain combinatorial objects which we call telescopes.
description: 42 pages, 21 figures
Viscous fluid dynamics with decaying vacuum energy density
Creators: name: Singh, C. P.
name: Khatri, Vinita
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this work, we investigate the dynamics of bulk viscous models with decaying vacuum energy density (VED) in a spatially homogeneous and isotropic flat Friedmann-Lemaître- Robertson-walker (FLRW) spacetime. We particularly are interested to study the viscous model which considers first order deviation from equilibrium, i.e., the Eckart theory. In the first part, using the different forms of the bulk viscous coefficient, we find the main cosmological parameters, like Hubble parameter, scale factor, deceleration parameter and equation of state parameter analytically. We discuss some cosmological consequences of the evolutions and dynamics of the different viscous models with decaying VED. We examine the linear perturbation growth in the context of the bulk viscous model with decaying VED to see if it survives this further level of scrutiny. The second part of the work is devoted to constrain the viscous model of the form $ζ\propto H$, where $ζ$ is the bulk viscous coefficient and $H$ is the Hubble parameter, using three different combinations of data from type Ia supernovae (Pantheon), $H(z)$ (cosmic chronometers), Baryon Acoustic Oscillation and $f(z)σ_8(z)$ measurements with Markov Chain Monte Carlo (MCMC) method. We show that the considered model is compatible with the cosmological probes, and the $Λ$CDM recovered in late-time of the evolution of the Universe. Finally, we obtain selection information criteria (AIC and BIC) to study the stability of the models.
description: 18 pages, 18 figures, Revised, some References and figures added
Estimating Economic Benefits of Allowing a Flexible Window for Maryland Purchases of Sponge Crabs
Creators: name: Lipton, Douglas W.
name: Sieling, Bill
name: Lipton, Douglas W.
name: Sieling, Bill
Publisher: name: Unknown
Year: 2007
Subjects: Resource /Energy Economics and Policy

description: We estimate that crabmeat industry revenues from processing sponge crabs can increase by at least 56% over the current estimated value of production, from $1.6 million to $2.5 million. This gain can be realized by moving from the current fixed opening of the season during which the Maryland industry can purchase sponge crabs to a flexible starting date to the season that lasts the same number of days as the current system. This change would have the added advantage of reducing the variability in revenues that come from processing sponge crabs. Our modeling of the decision to open the season is based on a minimum amount of information. It is expected that with more sophisticated analysis of the market situation during the season, experts can optimize the opening date and increase the revenues even further.
Nature of the magnetic coupling in infinite-layer nickelates versus cuprates
Creators: name: Sahinovic, Armin
name: Geisler, Benjamin
name: Pentcheva, Rossitza
Publisher: name: arXiv
Year: 2023
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In contrast to the cuprates, where the proximity of antiferromagnetism (AFM) and superconductivity is well established, first indications for AFM interactions in superconducting infinite-layer nickelates were only recently obtained. Here, we explore, based on first-principles simulations, the nature of the magnetic coupling in NdNiO2 as a function of the on-site Coulomb and exchange interaction, varying the explicit hole doping and the treatment of the Nd $4f$ electrons. The $U$-$J$ phase diagrams for undoped nickelates and cuprates indicate $G$-type ordering, yet show different $U$ dependency. By either Sr hole doping or explicit treatment of the Nd $4f$ electrons, we find a transition to a Ni $C$-type AFM ground state. We trace the effect of Sr doping back to a distinct accommodation of the holes by the Ni versus Cu $e_g$ orbitals. The interaction between Nd $4f$ and Ni $3d$ states stabilizes $C$-type AFM order on both sublattices. Though spin-orbit interactions induce a band splitting near the Fermi energy, the bad-metal state is retained even under epitaxial strain. These results establish the distinct role of the magnetic interactions in the nickelates versus the cuprates and suggest the former as a unique platform to investigate the relation to unconventional superconductivity.
description: 8 pages, 5 figures
DNA barcoding unveils the first record of Andrena allosa for Italy and unexpected genetic diversity in Andrena praecox (Hymenoptera: Andrenidae)
Creators: name: Cornalba, Maurizio
name: Biella, Paolo
name: Galimberti, Andrea
Publisher: name: Fragmenta Entomologica
Year: 2020

description: DNA barcoding is well-known to support morphological species identification and it can be helpful for unveiling unexpected populations divergence patterns, especially in the context of the impacts on species posed by global change. In this note, we provided the first Italian record of the alpine mining bee Andrena allosa Warncke, 1975, confirmed with DNA barcoding. In addition, genetic identification of a specimen of Andrena praecox (Scopoli 1753) from western Italy pointed to an unexpected intraspecific genetic structuring at COI DNA barcoding region, with sequences from the Italian and the western sector of its global distribution differing 2.22% (p-dist) from populations of the eastern sector. Given the relevance of these records and of the genetic identity of bee populations from Italy, we argue that implementing molecular surveys in bee monitoring would surely contribute to the conservation of these important pollinators.
description: Fragmenta Entomologica, Vol. 52 No. 1 (2020)
Fit to the Bjorken, Ellis-Jaffe and Gross-Llewellyn-Smith sum rules in a renormalon based approach
Creators: name: Campanario, Francisco
name: Pineda, Antonio
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the large order behaviour in perturbation theory of the Bjorken, Ellis-Jaffe and Gross-Llewellyn-Smith sum rules. In particular, we consider their first infrared renormalons, for which we obtain their analytic structure with logarithmic accuracy and also an approximate determination of their normalization constant. Estimates of higher order terms of the perturbative series are given. The Renormalon subtracted scheme is worked out for these observables and compared with experimental data. Overall, good agreement with experiment is found. This allows us to obtain {\hat a}_0 and some higher-twist non-perturbative constants from experiment: {\hat a}_0=0.141\pm 0.089; f_{3,RS}(1 GeV)=-0.124^{+0.137}_{-0.142} GeV^2.
description: 23 pages, 18 figures, one reference added, journal version
Integrated Development Plan For Enhancing Urban Quality In Embakasi Pipeline (2024-2034)
Creators: name: Magal, Jesse
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 330411
subject: Urban design
classificationCode: 330410
subject: Urban analysis and development
classificationCode: 330404
subject: Land use and environmental planning
classificationCode: 330401
subject: Community planning

description: This planning development project seeks to provide an effective solution to enhance urban quality in Embakasi Pipeline and acts as an implementation tool for the planning research project whose purpose was to study the insufficiencies of urban quality in high rise neighborhoods. The project's objectives includes conducting a review of literature, principles, policies, legislations, development control guidelines and standards, carrying out a situational analysis of the planning area of Embakasi Pipeline residential neighbourhood, formulating alternative plans, strategies and policy options, evaluating the alternative plans and formulating an implementation, monitoring and evaluation frameworks for the Integrated development plan for Embakasi Pipeline residential neighbourhood