cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Course-Skill Atlas: A national longitudinal dataset of skills taught in U.S. higher education curricula
Creators: name: Sabet, Alireza Javadian
name: Bana, Sarah H.
name: Yu, Renzhe
name: Frank, Morgan R.
Publisher: name: arXiv
Year: 2024
Subjects: subject: General Economics (econ.GN)
subject: Computation and Language (cs.CL)
subject: FOS: Economics and business
subject: FOS: Computer and information sciences

description: Higher education plays a critical role in driving an innovative economy by equipping students with knowledge and skills demanded by the workforce. While researchers and practitioners have developed data systems to track detailed occupational skills, such as those established by the U.S. Department of Labor (DOL), much less effort has been made to document which of these skills are being developed in higher education at a similar granularity. Here, we fill this gap by presenting Course-Skill Atlas -- a longitudinal dataset of skills inferred from over three million course syllabi taught at nearly three thousand U.S. higher education institutions. To construct Course-Skill Atlas, we apply natural language processing to quantify the alignment between course syllabi and detailed workplace activities (DWAs) used by the DOL to describe occupations. We then aggregate these alignment scores to create skill profiles for institutions and academic majors. Our dataset offers a large-scale representation of college education's role in preparing students for the labor market. Overall, Course-Skill Atlas can enable new research on the source of skills in the context of workforce development and provide actionable insights for shaping the future of higher education to meet evolving labor demands, especially in the face of new technologies.
description: 24 pages, 14 figures, 7 tables
STRUCTURAL ESTIMATES OF DOMESTIC DEMAND FOR AGRICULTURAL PRODUCTS IN AUSTRALIA: A REVIEW
Creators: name: Richardson, Robert A.
name: Richardson, Robert A.
Publisher: name: Unknown
Year: 1976
Subjects: Demand and Price Analysis

description: Applied economists have devoted significant resources to the econometric estimation of demand and price parameters of markets for agricultural products. This paper provides a review of research in this area for the Australian domestic market. Identified publications are classified on the basis of various levels of aggregation over products and markets and are evaluated in terms of the use of economic theory, econometric methods and data. In the final section of the paper there is a discussion of some questions and problems arising from the existing literature, and the implications for future research in this area.
Elicitation on biclausal structures
Creators: name: Rudolph, Johnny (Soni)
name: Drummond, Emily
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2020
Subjects: subject: nkr

description: One .wav audio file and one .rtf transcription file for an elicitation on biclausal structures (promise, help, hope, want, can, choose, let). Corresponds to pages 10-19 in Notebook 2.
The cosmic merger rate density of compact objects: impact of star formation, metallicity, initial mass function and binary evolution
Creators: name: Santoliquido, Filippo
name: Mapelli, Michela
name: Giacobbo, Nicola
name: Bouffanais, Yann
name: Artale, M. Celeste
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We evaluate the redshift distribution of binary black hole (BBH), black hole - neutron star binary (BHNS) and binary neutron star (BNS) mergers, exploring the main sources of uncertainty: star formation rate (SFR) density, metallicity evolution, common envelope, mass transfer via Roche lobe overflow, natal kicks, core-collapse supernova model and initial mass function. Among binary evolution processes, uncertainties on common envelope ejection have a major impact: the local merger rate density of BNSs varies from $\sim{}10^3$ to $\sim{}20$ Gpc$^{-3}$ yr$^{-1}$ if we change the common envelope efficiency parameter from $α_{\rm CE}=7$ to 0.5, while the local merger rates of BBHs and BHNSs vary by a factor of $\sim{}2-3$. The BBH merger rate changes by one order of magnitude, when $1 σ$ uncertainties on metallicity evolution are taken into account. In contrast, the BNS merger rate is almost insensitive to metallicity. Hence, BNSs are the ideal test bed to put constraints on uncertain binary evolution processes, such as common envelope and natal kicks. Only models assuming values of $α_{\rm CE}\gtrsim{}2$ and moderately low natal kicks (depending on the ejected mass and the SN mechanism), result in a local BNS merger rate density within the 90% credible interval inferred from the second gravitational-wave transient catalogue.
description: 14 pages, 12 figures, 2 tables, accepted for publication in MNRAS
Twisted holography on AdS$_3 \times S^3 \times K3 $ & the planar chiral algebra
Creators: name: Fernández, Víctor E.
name: Paquette, Natalie M.
name: Williams, Brian R.
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this work, we revisit and elaborate on twisted holography for AdS$_3 \times S^3 \times X$ with $X= T^4$, K3, with a particular focus on K3. We describe the twist of supergravity, identify the corresponding (generalization of) BCOV theory, and enumerate twisted supergravity states. We use this knowledge, and the technique of Koszul duality, to obtain the $N \rightarrow \infty$, or planar, limit of the chiral algebra of the dual CFT. The resulting symmetries are strong enough to fix planar 2 and 3-point functions in the twisted theory or, equivalently, in a 1/4-BPS subsector of the original duality. This technique can in principle be used to compute corrections to the chiral algebra perturbatively in $1/N$.
description: 91 pages, 9 figures (v2: minor corrections and additions)
Divergence Cancellation and Loop Corrections in String Field Theory on a Plane Wave Background
Creators: name: Grignani, Gianluca
name: Orselli, Marta
name: Ramadanovic, Bojan
name: Semenoff, Gordon W.
name: Young, Donovan
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate the one-loop energy shift E to certain two-impurity string states in light-cone string field theory on a plane wave background. We find that there exist logarithmic divergences in the sums over intermediate mode numbers which cancel between the cubic Hamiltonian and quartic ``contact term''. Analyzing the impurity non-conserving channel we find that the non-perturbative, order g_2^2 sqrt(lambda') contribution to E/mu predicted in hep-th/0211220 is in fact an artifact of these logarithmic divergences and vanishes with them, leaving an order g_2^2 lambda' contribution. Exploiting the supersymmetry algebra, we present a form for the energy shift which appears to be manifestly convergent and free of non-perturbative terms. We use this form to argue that E/mu receives order g_2^2 lambda' contributions at every order in intermediate state impurities.
description: 27 pages; added references, acknowledgments, missing normalization in equations 2.3 - 2.8, also cleaned up notation, and added a few footnotes
ON THE OPTIMAL OUTPUT OF FLOOD PLAINS
Creators: name: Aislabie, Colin
name: Aislabie, Colin
Publisher: name: Unknown
Year: 1976
Subjects: Resource /Energy Economics and Policy

description: A simple model is presented to demonstrate the point that allocative efficiency requires a suitable mix of flood-protection measures and this is not necessarily afforded by supplanting structural flood control measures with compulsory flood insurance schemes.
Average energy dissipation rates of explicit exponential Runge-Kutta methods for gradient flow problems
Creators: name: Liao, Hong-lin
name: Wang, Xuping
Publisher: name: arXiv
Year: 2024
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 35K58, 65L20, 65M06, 65M12

description: We propose a unified theoretical framework to examine the energy dissipation properties at all stages of explicit exponential Runge-Kutta (EERK) methods for gradient flow problems. The main part of the novel framework is to construct the differential form of EERK method by using the difference coefficients of method and the so-called discrete orthogonal convolution kernels. As the main result, we prove that an EERK method can preserve the original energy dissipation law unconditionally if the associated differentiation matrix is positive semi-definite. A simple indicator, namely average dissipation rate, is also introduced for these multi-stage methods to evaluate the overall energy dissipation rate of an EERK method such that one can choose proper parameters in some parameterized EERK methods or compare different kinds of EERK methods. Some existing EERK methods in the literature are evaluated from the perspective of preserving the original energy dissipation law and the energy dissipation rate. Some numerical examples are also included to support our theory.
description: 35 pages, 44 figures
THE PROMOTION OF WOOL AND SYNTHETIC FIBRE BLENDS: SOME ALTERNATIVE STRATEGIES FOR THE WOOL INDUSTRY
Creators: name: Tisdell, Clement A.
name: Tisdell, Clement A.
Publisher: name: Unknown
Year: 1976
Subjects: Livestock Production/Industries

description: This paper discusses from the wool industry's point of view its optimal level of expenditure on wool promotion and its optimal policy in promoting wool blends. The relevance of the Dorfman-Steiner and Nerlove-Waugh theorems relating to advertising is questioned. Mathematical conditions for the optimal allocation of promotional funds between pure wool and wool blends are outlined and game theory is used to consider whether the wool industry should leave the promotion of wool blends to makers of man-made fibres.
AN ASSESSMENT OF THE ROLE OF INSURANCE AND STRUCTURAL MEASURES IN FLOOD MITIGATION PLANNING
Creators: name: Forsythe, G.A.
name: Forsythe, G.A.
Publisher: name: Unknown
Year: 1975
Subjects: Resource /Energy Economics and Policy

description: There is no entirely satisfactory strategy to mitigate the risks associated with flooding. In Australia, reliance is usually placed on structural measures; however, an appraisal under different criteria highlights reasons for their inadequacy. Insurance is initially advocated as an alternative and appraised under similar criteria. It is shown to be a useful mitigation strategy, although somewhat limited in that it is merely a palliative to the flood problem. An alternative approach to flood mitigation is hypothesized which incorporates insurance as its base and utilizes other measures, particularly structural, where feasible. Such an approach is shown to effectively maximize the beneficial features of both insurance and structural measures. Problems relating to the workability of the scheme are subsequently analysed.
Raw data for the experimental evaluation of the scalability of permissioned blockchains
Creators: name: Stefano Tavonatti, Davaadorj Battulga
Publisher: name: Zenodo
Year: 2021
Subjects: Blockchain, Measurements, Performance, Hyperledger, Grid5000

description: An extensive experimental testing campaign on a large-scale distributed computing infrastructure (Grid’5000), measuring the performance of a popular permissioned blockchain framework (Hyperledger Fabric) under varying conditions.
FORECASTING CROP QUALITY
Creators: name: Ryland, G.J.
name: Ryland, G.J.
Publisher: name: Unknown
Year: 1975
Subjects: Crop Production/Industries

description: The need for a forecasting system of biological quality arises as a result of the price-quality payment schemes in grower and processor contracts which operate in many agricultural cropping industries. The seasonal nature of the series of vertical quality height gives rise to questions as to the repetitive pattern of the shape and trend translation of the series. These hypotheses can be tested using conventional statistical methods. For non-stationary series, however, a Box-Jenkins type dynamic seasonal model is proposed. These forecasting procedures are applied to a series of sugar cane quality.
tRecX -- an environment for solving time-dependent Schrödinger-like problems
Creators: name: Scrinzi, Armin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: TRecX is a C++ code for solving generalized inhomogeneous time-dependent Schrödinger-type equations $idΨ/dt = H[t,Ψ] + Φ$ in arbitrary dimensions and in a variety of coordinate systems. The operator $H[t,Ψ]$ may have simple non-linearities, as in Gross-Pitaevskii and Hartree(-Fock) problems. Primary application of tRecX has been non-perturbative strong-field single and double photo-electron emission in atomic and molecular physics. The code is designed for large-scale {\it ab initio} calculations, for exploring models, and for advanced teaching in computational physics. Distinctive numerical methods are the time-dependent surface flux method for the computation of single and double emission spectra and exterior complex scaling for absorption. Wave functions and operators are handled by tree-structures with the systematic use of recursion on the coarse-grain level. Numerical, analytic, and grid-based discretizations can be combined and are treated on the same abstract level. Operators are specified in the input using a script language including symbolic algebra. User-friendly in- and output, error safety, and documentation are integrated by design.
Phase-field modelling for fatigue crack growth under laser-shock-peening-induced residual stresses
Creators: name: Seiler, Martha
name: Keller, Sören
name: Kashaev, Nikolai
name: Klusemann, Benjamin
name: Kästner, Markus
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: For the fatigue life of thin-walled components, not only fatigue crack initiation, but also crack growth is decisive. The phase-field method for fracture is a powerful tool to simulate arbitrary crack phenomena. Recently, it has been applied to fatigue fracture. Those models pose an alternative to classical fracture-mechanical approaches for fatigue life estimation. In the first part of this paper, the parameters of a phase-field fatigue model are calibrated and its predictions are compared to results of fatigue crack growth experiments of aluminium sheet material. In the second part, compressive residual stresses are introduced into the components with the help of laser shock peening. It is shown that those residual stresses influence the crack growth rate by retarding and accelerating the crack. In order to study these fatigue mechanisms numerically, a simple strategy to incorporate residual stresses in the phase-field fatigue model is presented and tested with experiments. The study shows that the approach can reproduce the effects of the residual stresses on the crack growth rate.
The hot non-perturbative gluon plasma is an almost ideal colored liquid
Creators: name: Peshier, A.
name: Cassing, W.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study properties of a gluon plasma above the critical temperature $T_c$ in a generalized quasi-particle approach with a Lorentz spectral function. The model parameters are determined by a fit of the entropy $s$ to lattice QCD data. The effective degrees of freedom are found to be rather heavy and of a sizeable width. With the spectral width being closely related to the interaction rate, we find a large effective cross section, which is comparable to the typical distance squared of the quasiparticles. This suggests that the system should be viewed as a liquid as also indicated by an estimate of the plasma parameter $Γ$. Furthermore, within the quasiparticle approach we find a very low viscosity to entropy ratio, $η/s \sim 0.2$ for $T > 1.05 T_c$, supporting the recent conjecture of an almost ideal quark-gluon liquid seen at RHIC.
description: 4 pages, 2 eps figures, published version
Model-free inference of memory in conformational dynamics of a multi-domain protein
Creators: name: Vollmar, Leonie
name: Bebon, Rick
name: Schimpf, Julia
name: Flietel, Bastian
name: Celiksoy, Sirin
name: Sönnichsen, Carsten
name: Godec, Aljaž
name: Hugel, Thorsten
Publisher: name: arXiv
Year: 2024
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Single-molecule experiments provide insight into the motion (conformational dynamics) of individual protein molecules. Usually, a well-defined but coarse-grained intramolecular coordinate is measured and subsequently analysed with the help of Hidden Markov Models (HMMs) to deduce the kinetics of protein conformational changes. Such approaches rely on the assumption that the microscopic dynamics of the protein evolve according to a Markov-jump process on some network. However, the manifestation and extent of memory in the dynamics of the observable strongly depends on the chosen underlying Markov model, which is generally not known and therefore can lead to misinterpretations. Here, we combine extensive single-molecule plasmon ruler experiments on the heat shock protein Hsp90, computer simulations, and theory to infer and quantify memory in a model-free fashion. Our analysis is based on the bare definition of non-Markovian behaviour and does not require any underlying model. In the case of Hsp90 probed by a plasmon ruler, the Markov assumption is found to be clearly and conclusively violated on timescales up to roughly 50 s, which corresponds roughly to $\sim$50% of the inferred correlation time of the signal. The extent of memory is striking and reaches biologically relevant timescales. This implies that memory effects penetrate even the slowest observed motions. We provide clear and reproducible guidelines on how to test for the presence and duration of memory in experimental single-molecule data.
Pterocryptis furnessi
Creators: name: Sulaiman, Zohrah
name: Hui, Tan Heok
name: Lim, Kelvin Kok Peng
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Siluriformes
Siluridae
Pterocryptis
Pterocryptis furnessi

description: Pterocryptis furnessi (Fowler, 1905) BE
Silurichthys hasselti (non-Bleeker): Choy & Chin, 1994: 769 (Belalong-Temburong basin upstream of Kuala Belalong); Kottelat & Lim, 1995: 241 (Brunei).
Pterocryptis furnessi (Fowler, 1905): Kottelat & Lim, 1995: 241 (Temburong district); Sulaiman & Shahdan, 2003: 67 (Tasek Merimbun); Ng & Tan, 2004: 5 (Temburong basin, Sungai Belalong sub-basin). Remarks. Choy & Chin (1994: 768-769) recorded a ‘ Krytopterus sp.’ and a ‘ Silurus sp.’ from the Sungai
Belalong. Without examining these materials, we are unable to comment on their identification.
description: Published as part of Sulaiman, Zohrah, Hui, Tan Heok & Lim, Kelvin Kok Peng, 2018, Annotated checklist of freshwater fishes from Brunei Darussalam, Borneo in Zootaxa 4379 (1), DOI: 10.11646/zootaxa.4379.1.2, http://zenodo.org/record/1172314
Elicitation on biclausal structures, wh-questions, and word order
Creators: name: Rudolph, Johnny (Soni)
name: Drummond, Emily
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2020
Subjects: subject: nkr

description: One .wav audio file and one .rtf transcription file for an elicitation on biclausal structures (try, want, can, know, let, choose), wh-questions and clefts, and word order variation. Corresponds to pages 1-9 in Notebook 2.
Theodolite: Scalability Benchmarking of Distributed Stream Processing Engines in Microservice Architectures
Creators: name: Henning, Sören
name: Hasselbring, Wilhelm
Publisher: name: arXiv
Year: 2020
Subjects: subject: Software Engineering (cs.SE)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Performance (cs.PF)
subject: FOS: Computer and information sciences

description: Distributed stream processing engines are designed with a focus on scalability to process big data volumes in a continuous manner. We present the Theodolite method for benchmarking the scalability of distributed stream processing engines. Core of this method is the definition of use cases that microservices implementing stream processing have to fulfill. For each use case, our method identifies relevant workload dimensions that might affect the scalability of a use case. We propose to design one benchmark per use case and relevant workload dimension. We present a general benchmarking framework, which can be applied to execute the individual benchmarks for a given use case and workload dimension. Our framework executes an implementation of the use case's dataflow architecture for different workloads of the given dimension and various numbers of processing instances. This way, it identifies how resources demand evolves with increasing workloads. Within the scope of this paper, we present 4 identified use cases, derived from processing Industrial Internet of Things data, and 7 corresponding workload dimensions. We provide implementations of 4 benchmarks with Kafka Streams and Apache Flink as well as an implementation of our benchmarking framework to execute scalability benchmarks in cloud environments. We use both for evaluating the Theodolite method and for benchmarking Kafka Streams' and Flink's scalability for different deployment options.
description: 28 pages
Characterizing the reflectance near the Brewster angle: a Pade-approximant approach
Creators: name: Yonte, Teresa
name: Sanchez-Soto, Luis L.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We characterize the reflectance peak near the Brewster angle for both an interface between two dielectric media and a single slab. To approach this problem analytically, we approximate the reflectance by a first-order diagonal Padé. In this way, we calculate the width and the skewness of the peak and we show that, although they present a well-resolved maximum, they are otherwise not so markedly dependent on the refractive index.
description: 5 pages, 5 color eps- figures. Submitted for publication
The syntax of possessor raising
Creators: name: Nakamura, Yumiko
Publisher: name: University of British Columbia
Year: 2009

description: This thesis provides an analysis of Possessor Raising (PR) in a minimalist framework. I examine four languages that exhibit PR, namely Japanese, Korean, Kinyarwanda, and Swahili. I propose that cross-linguistic variation of PR in these languages is captured by the single notion of Multiple Feature-Checking (MFC). In addition to cross-linguistic variation of surface syntax of PR, this thesis also examines a universal feature of PR, namely the relational noun restriction. PR raises an interesting problem with the mapping relation between an argument DP and its grammatical function (GF). A DP is normally associated with a unique GF (i.e., a one-to-one mapping relation), but in some cases such as passive, a DP may be associated with more than one GF, being both an underlying object and a surface subject (i.e., a one-to-many). PR also poses another type of mapping relation, namely a many-to-one relation; under PR, a possessor DP may also bear the GF of its host. In order to capture such a many-to-one relation between a DP and its GF in PR, I propose that this is an example of MFC, which is defined as follows: (i) MFC is possible only if a Formal Feature (FF) of a head (T and v) can escape deletion. (ii) MFC applies to both strong and weak FFs. In contrast to the original formulation of MFC (cf. Chomsky 1995b), which always involves overt movement of DPs and derives multiple specifiers, I argue that MFC also takes place at LF, which involves covert movement of FFs and derives multiple adjuncts of feature bundles onto a head. Given the evidence against overt movement of the subject and object in Japanese and Korean, I argue that PR in these languages is best analyzed in terms of covert MFC. I also provide an overt MFC analysis for Kinyarwanda and Swahili PR. Lastly, I discuss the relational noun restriction on PR, which holds of all PR languages. I propose that this restriction is reducible to the structural position of the possessor of a relational noun, namely its position as complement to the noun.
The impacts of EU accession on the agricultural prices, production patterns and farmers' income in Bulgaria
Creators: name: Koleva, Nikolinka
name: Koleva, Nikolinka
Publisher: name: Unknown
Year: 2006
Subjects: Farm Management

description: Accession to the European Union is expected to intensify the competitive pressure and substantially alter the political - economic condition in Bulgaria. This contribution provides a quantitative assessment of the impact of implementation of the Common Agricultural Policy (CAP). It is based on results which are calculated using EISM (European Simulation Model). The model covers the supply of eighth primary agricultural commodities (wheat, maize, barley, sunflower seed, beef, pork and poultry meat, milk) and demand for food products from Bulgaria. The paper consists of short description of the modeling approach then the assumptions which have been made regarding the preliminary negotiations for accession are explained. Subsequently the evaluation of the impacts of accession focused on change in producer prices, production and incomes from farming.
Origin of charge density wave formation in insulators from a high resolution photoemission study of BaIrO3
Creators: name: Maiti, Kalobaran
name: Singh, Ravi Shankar
name: Medicherla, V. R. R.
name: Rayaprol, S.
name: Sampathkumaran, E. V.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate the origin of charge density wave (CDW) formation in insulators by studying BaIrO3 using high resolution (1.4 meV) photoemission spectroscopy. The spectra reveal the existence of localized density of states at the Fermi level in the vicinity of room temperature. These localized states are found to vanish as the temperature is lowered thereby, opening a soft gap at the Fermi level, as a consequence of CDW transition. In addition, the energy dependence of the spectral density of states reveals the importance of magnetic interactions, rather than well-known Coulomb repulsion effect, in determining the electronic structure thereby implying a close relationship between ferromagnetism and CDW observed in this compound. Also, Ba core level spectra surprisingly exhibit an unusual behavior prior to CDW transition.
description: 4 pages, 4 figures. To appear in Physical Review Letters
NANOGrav results and LIGO-Virgo primordial black holes in axion-like curvaton model
Creators: name: Inomata, Keisuke
name: Kawasaki, Masahiro
name: Mukaida, Kyohei
name: Yanagida, Tsutomu T.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss a possible connection between the recent NANOGrav results and the primordial black holes (PBHs) for the LIGO-Virgo events. In particular, we focus on the axion-like curvaton model, which provides a sizable amount of PBHs and GWs induced by scalar perturbations around the NANOGrav frequency range. The inevitable non-Gaussianity of this model suppresses the induced GWs associated with PBHs for the LIGO-Virgo events to be compatible with the NANOGrav results. We show that the axion-like curvaton model can account for PBHs for the LIGO-Virgo events and the NANOGrav results simultaneously.
description: 6 pages, 2 figures, v2: version published in PRL, minor revision
Innovation in commercialization of pelagic fish: the example of "Srdela Snack" Franchise
Creators: name: Kolega, Ante
name: Radman, Marija
name: Markovina, Jerko
name: Kolega, Ante
name: Radman, Marija
name: Markovina, Jerko
Publisher: name: Unknown
Year: 2006
Subjects: subject: Agribusiness
subject: Innovation
subject: Commercialization
subject: Pelagic fish
subject: Franchise

description: The consumption of fish in Croatia is relatively low for a Mediterranean country. One of the main reasons for this is the inadequate supply of fish. The supply of fish is usually limited to expensive species of whitefish, while the supply of pelagic fish is very scarce. Pelagic fish can rarely be found in restaurants, and in the fish- markets it reaches very high prices. The basic goal of the project "Srdela Snack" (srdela - Croatian word for sardine) was to set up and test a new model of commercialization of pelagic fish through franchise "fast - food" outlets. In the paper we will describe the concept of this new model which includes the whole distribution channel, from fishermen, through processors, restaurants to consumers. In this model fishermen supply fresh pelagic fish to approved restaurant s (members of the franchise) which prepare the fish according to traditional recipes. In this way a completely new product is introduced in the Croatian market. The main idea was to offer a high- quality, simple and convenient meals made of pelagic fish from the Croatian Adriatic. This model of commercialization of pelagic fish was tested through a pilot project. In the pilot project the standards of food quality were determined, the traditional recipes for preparing the food were selected, and the menu, consisting entirely of pelagic fish dishes was made. Finally, the logo of the franchise restaurant was designed. The test restaurant was opened in the summer 2004. The visitors of the restaurant participated in a survey which was used to determine the degree of their satisfaction with the new product and the new model of pelagic fish commercialization. The results of the survey showed that there is a strong demand for pelagic fish in the Croatian market. Most of the interviewed consumers liked the new product; they consider it very healthy, affordable, tasty, and typical for Mediterranean and Croatia. Fishermen and restaurant - owners also showed a great interest for this new model of commercialization because it could provide them with a bigger income. Since the results of the pilot project showed that this kind of innovation in the distribution channel is very successful, this model of franchise restaurants offering pelagic fish "fast - food" can be implemented on the national level.
Bounds to the Basset-Boussinesq force on particle laden stratified flows
Creators: name: Reartes, Christian
name: Mininni, Pablo D.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The Basset-Boussinesq force is often perfunctorily neglected when studying small inertial particles in turbulence. This force arises from the diffusion of vorticity from the particles and, since it depends on the particles' past history, complicates the dynamics by transforming their equations of motion into integro-differential equations. However, this force is of the same order as other viscous forces acting on the particles, and beyond convenience, the reasons for neglecting it are unclear. This study addresses the following question: Under what conditions can the Basset-Boussinesq force be neglected in light particles in geophysical flows? We derive strict bounds for the magnitude of the Basset-Boussinesq force in stably stratified flows, in contexts of interest for geophysical turbulence. The bounds are validated by direct numerical simulations. The Basset-Boussinesq force is negligible when a buoyancy Stokes number $\textrm{Sb} = N τ_p$ is small, where $N$ is the flow Brunt-Väisälä frequency and $τ_p$ is the particle's Stokes time. Interestingly, for most oceanic particles this force may be negligible. Only for very strong stratification, or for particles with very large inertia, this force must be considered in the dynamics.
Minigap in superconductor-ferromagnet junctions with inhomogeneous magnetization
Creators: name: Ivanov, D. A.
name: Fominov, Ya. V.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We consider the minigap in a disordered ferromagnet (F) in contact with a superconductor (S) in the situation when the magnetization of the F layer is inhomogeneous in space and noncollinear. If the magnetization is strongly inhomogeneous, it effectively averages out, and the minigap survives up to the exchange field $h_c ~ (L/a) E_{Th}$, where $L$ is the thickness of the F layer, $a$ is the scale on which the magnetization varies, and $E_{Th}$ is the Thouless energy. Technically, we use the "triplet" version of the Usadel equations including both singlet and triplet components of the Green's functions. In many cases, the effect of disordered magnetization may be effectively included in the conventional Usadel equations as the spin-flip scattering term. In the case of low-dimensional magnetic inhomogeneities (we consider spiral magnetization as an example), however, the full set of "triplet" equations must be solved.
description: 6 pages, 2 figures. Version 2: extended (to appear in Phys. Rev. B)
Firms' strategies and voluntary traceability: an empirical analysis in Italian food chains
Creators: name: Stranieri, Stefanella
name: Banterle, Alessandro
name: Stranieri, Stefanella
name: Banterle, Alessandro
Publisher: name: Unknown
Year: 2006
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: Industrial Organization
subject: traceability
subject: firms' strategies
subject: transaction cost economics
subject: food chain

description: In international food markets, voluntary traceability systems have increased their role in guaranteeing high safety and quality standards for the consumer. Such systems are also among the strategies firms employ to differentiate products and strengthen competitive advantage in both the national and international market. Voluntary traceability has significant implications on the organisation of economic relationships within food supply chains. This paper focuses on this aspect and analyses the effects of voluntary traceability on vertical co- ordination using a transaction cost perspective. The analysis makes reference to the Italian situation where the national standard organisation has introduced standard rules for voluntary traceability (UNI 10939; ISO 22005 at the international level). A survey was conducted by questionnaire to assess changes in transaction key factors (degree of asset specificity, uncertainty and frequency) and transaction costs after the introduction of voluntary traceability. The sample represent s all Italian firms certified UNI 10939, and consists of 190 firms. Respondents are 146. Factorial and Cluster Analyses were applied to highlight groups of firms with similar features. The empirical results reveal four different clusters in terms of a vertical reorganisation of transactions.
Soil Fertility Management Based on Certified Organic Agriculture Standards – a Review
Creators: name: Sapinas, I.P.
name: Abbott, L.K.
name: Sapinas, I.P.
name: Abbott, L.K.
Publisher: name: Unknown
Year: 2020
Subjects: subject: Crop Production/Industries
subject: organic agriculture
subject: biological amendments
subject: organic certification
subject: sustainable farming

description: In certified organic agricultural systems, soil nutrient status relies primarily on incorporation of organic matter and other specific inputs to meet requirements for phosphorus and micronutrients. Nutrient management strategies based on defined standards seek to maintain sufficient nutrient availability while minimizing potential losses. Although organic systems may result in lower levels of production than conventionally managed systems, sound soil nutrient management practices can minimize this gap. Certified organic standards are widely established globally, but traditional farming practices that resemble organic systems are also commonly used without adherence to a certified scheme. There is considerable debate about the efficiency of bio-amendments for use in organic farming due to their variability. Questions also persist about the sustainability of organic soil fertility management practices. The relevance of global variations among organic certification standards has not been a major consideration in research. Most soil improvement strategies focus on assessing the impact of particular amendments with less attention to a more holistic approach which integrates all components of the agricultural system. Research on implementation of practices based on certified organic standards highlights potential for multi–disciplinary, in-depth studies that identify combined impacts of organic management practices at a local scale. Standards developed at national level may not fully account for the breadth of soil types and environmental conditions. While soil improvement based on certified organic standards can contribute to socio-economic development and ecosystem services, local soil characteristics need to be considered in parallel with potential new avenues for sourcing nutrients, including organic matter management.
Green's function for the fractional KdV equation on the periodic domain via Mittag-Leffler's function
Creators: name: Le, Uyen
name: Pelinovsky, Dmitry E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Analysis of PDEs (math.AP)
subject: Classical Analysis and ODEs (math.CA)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: The linear operator $c + (-Δ)^{α/2}$, where $c > 0$ and $(-Δ)^{α/2}$ is the fractional Laplacian on the periodic domain, arises in the existence of periodic travelling waves in the fractional Korteweg--de Vries equation. We establish a relation of the Green's function of this linear operator with the Mittag--Leffler function, which was previously used in the context of Riemann--Liouville's and Caputo's fractional derivatives. By using this relation, we prove that Green's function is strictly positive and single-lobe (monotonically decreasing away from the maximum point) for every $c > 0$ and every $α\in (0,2]$. On the other hand, we argue from numerical approximations that in the case of $α\in (2,4]$, the Green's function is positive and single-lobe for small $c$ and non-positive and non-single lobe for large $c$.
description: 20 pages; 6 figures
Gene regulatory networks: a coarse-grained, equation-free approach to multiscale computation
Creators: name: Erban, Radek
name: Kevrekidis, Ioannis G.
name: Adalsteinsson, David
name: Elston, Timothy C.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: Molecular Networks (q-bio.MN)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We present computer-assisted methods for analyzing stochastic models of gene regulatory networks. The main idea that underlies this equation-free analysis is the design and execution of appropriately-initialized short bursts of stochastic simulations; the results of these are processed to estimate coarse-grained quantities of interest, such as mesoscopic transport coefficients. In particular, using a simple model of a genetic toggle switch, we illustrate the computation of an effective free energy and of a state-dependent effective diffusion coefficient that characterize an unavailable effective Fokker-Planck equation. Additionally we illustrate the linking of equation-free techniques with continuation methods for performing a form of stochastic "bifurcation analysis"; estimation of mean switching times in the case of a bistable switch is also implemented in this equation-free context. The accuracy of our methods is tested by direct comparison with long-time stochastic simulations. This type of equation-free analysis appears to be a promising approach to computing features of the long-time, coarse-grained behavior of certain classes of complex stochastic models of gene regulatory networks, circumventing the need for long Monte Carlo simulations.
description: 33 pages, submitted to The Journal of Chemical Physics
Reconstructing networks from simple and complex contagions
Creators: name: Landry, Nicholas W.
name: Thompson, William
name: Hébert-Dufresne, Laurent
name: Young, Jean-Gabriel
Publisher: name: arXiv
Year: 2024
Subjects: subject: Social and Information Networks (cs.SI)
subject: Populations and Evolution (q-bio.PE)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: Network scientists often use complex dynamic processes to describe network contagions, but tools for fitting contagion models typically assume simple dynamics. Here, we address this gap by developing a nonparametric method to reconstruct a network and dynamics from a series of node states, using a model that breaks the dichotomy between simple pairwise and complex neighborhood-based contagions. We then show that a network is more easily reconstructed when observed through the lens of complex contagions if it is dense or the dynamic saturates, and that simple contagions are better otherwise.
description: 8 pages, 5 figures
The Pre-Main-Sequence Eclipsing Binary ASAS J052821+0338.5
Creators: name: Stempels, H. C.
name: Hebb, L.
name: Stassun, K. G.
name: Holtzman, J.
name: Dunstone, N.
name: Glowienka, L.
name: Frandsen, S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this paper we present the first results of a detailed spectroscopic and photometric analysis of the V = 11.7m eclipsing binary ASAS J052821+0338.5. With the FIES spectrograph at the Nordic Optical Telescope we have obtained a series of high-resolution spectra (R=47000) covering the entire orbit of the system. In addition we obtained simultaneous broadband photometry from three small aperture telescopes. From these spectroscopic and photometric data we have derived the system's orbital parameters and determined the fundamental stellar parameters of the two components. Our results indicate that ASAS J052821+0338.5 is a K1/K3 pre-main-sequence eclipsing binary, with component masses of 1.38 M_sun and 1.33 M_sun and a period of 3.87 days, located at a distance of 280 +/- 30 pc. The kinematics, physical location and the evolutionary status of the two stars suggest that ASAS J052821+0338.5 is a member of the approximately 11 Myr old Orion OB1a subassociation. The systems also exhibits smooth 0.15m out-of-eclipse variations that are similar to those found in RS CVn binaries. Furthermore the parameters we derived are consistent with the 10-13 Myr isochrones of the popular Baraffe stellar evolutionary models.
description: 9 pages, 8 figures, to appear in A&A
The role of Guanxi networks in vegetable supply chains: Empirical evidence from Jiangsu Province, P.R. China
Creators: name: Lu, Hualiang
name: Trienekens, Jacques H.
name: Feng, Shuyi
name: Omta, S.W.F. (Onno)
name: Lu, Hualiang
name: Trienekens, Jacques H.
name: Feng, Shuyi
name: Omta, S.W.F. (Onno)
Publisher: name: Unknown
Year: 2006
Subjects: subject: Agribusiness
subject: Guanxi Network
subject: Buyer - Seller Relationship
subject: Performance
subject: Vegetable
subject: China

description: This study at tempt s to empirically investigate the effect of guanxi networks on buyer - seller relationships and on firm performance in vegetable industry in P.R. China. We interviewed 167 vegetable producers and 84 companies to test our conceptual relationship mo del. Results demons t rate that guanxi networks significantly improve buyer - seller relationships regarding interpersonal trust and transaction specific investment s. Buyer - seller relationships show significant impacts on chain performance. Results imply that the effects of guanxi networks differ for producers and companies in the chains. Study also revealed that transaction related at tributes (risk, channel requirements and transaction conditions) also influence buyer - seller relationships and chain performance jointly with guanxi networks. Paper ends with several managerial implications regarding the use of guanxi networks in business practices.
Coupling techniques for nonlinear hyperbolic equations. II. Resonant interfaces with internal structure
Creators: name: Boutin, Benjamin
name: Coquel, Frédéric
name: LeFloch, Philippe G.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35L65, 35D40

description: In the first part of this series, an augmented PDE system was introduced in order to couple two nonlinear hyperbolic equations together. This formulation allowed the authors, based on Dafermos's self-similar viscosity method, to establish the existence of self-similar solutions to the coupled Riemann problem. We continue here this analysis in the {restricted} case of one-dimensional scalar equations and investigate the internal structure of the interface in order to derive a selection criterion associated with the underlying regularization mechanism and, in turn, to characterize the nonconservative interface layer. In addition, we identify a new criterion that selects double-waved solutions that are also continuous at the interface. We conclude by providing some evidence that such solutions can be non-unique when dealing with non-convex flux-functions.
description: 29 pages
Variable Star Candidates in an ACS Field of M31
Creators: name: Williams, Benjamin F.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A search for variable stars is performed using two epochs of Hubble Space Telescope (HST) Advanced Camera for Surveys (ACS) imaging data for a 9.28 square arcminute portion of M31. This data set reveals 254 sources that vary by at least 4-sigma between epochs. The positions and 2-epoch B-band (equivalent) photometry of these sources are presented. The photometry suggests that this catalog includes most of the RR Lyrae population of this portion of M31.
description: 22 pages, 3 tables, 5 figures, accepted for publication in AJ