cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Fast, accurate simulation of polaron dynamics and multidimensional spectroscopy by multiple Davydov trial states
Creators: name: Zhou, Nengji
name: Chen, Lipeng
name: Huang, Zhongkai
name: Sun, Kewei
name: Tanimura, Yoshitaka
name: Zhao, Yang
Publisher: name: arXiv
Year: 2019
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Chemical Physics (physics.chem-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: By employing the Dirac-Frenkel time-dependent variational principle, we study the dynamical properties of the Holstein molecular crystal model with diagonal and off-diagonal exciton-phonon coupling. A linear combination of the Davydov D$_1$ (D$_2$) Anstaz, referred to as the multi-D$_1$ Ansatz (multi-D$_2$ Ansatz), is used as the trial state with enhanced accuracy but without sacrificing efficiency. The time evolution of the exciton probability is found to be in perfect agreement with that of the hierarchy equations of motion, demonstrating the promise the multiple Davydov trial states hold as an efficient, robust description of dynamics of complex quantum systems. In addition to the linear absorption spectra computed for both diagonal and off-diagonal cases, for the first time, $2$D spectra have been calculated for systems with off-diagonal exciton-phonon coupling by employing the multiple $D_2$ Ansatz to compute the nonlinear response function, testifying to the great potential of the multiple $D_2$ Ansatz for fast, accurate implementation of multidimensional spectroscopy. It is found that the signal exhibits a single peak for weak off-diagonal coupling, while a vibronic multi-peak structure appears for strong off-diagonal coupling.
description: 16 pages, 14 figures
Network Competence and Open Innovation Behaviour in the Food Sector: An Empirical Investigation
Creators: name: Lefebvre, Virginie M.
name: Molnàr, Adrienn
name: Kuhne, Bianka
name: Gellynck, Xavier
name: Lefebvre, Virginie M.
name: Molnàr, Adrienn
name: Kuhne, Bianka
name: Gellynck, Xavier
Publisher: name: Unknown
Year: 2013
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Food Consumption/Nutrition/Food Safety
subject: Research and Development/Tech Change/Emerging Technologies
subject: Open innovation
subject: network competence
subject: low-tech sector

description: In today business world where knowledge and resources are increasingly spread among organizations, enterprises often develop a wide variety of relationships with other organizations in order to access new technologies, know-how and resources. Increasingly, the use of external resources for innovation – also referred as inbound open innovation in literature – is seen as a key factor to remain innovative and hence competitive. While the impact of open innovation on the firm’s innovativeness and performance has received quite some attention by scholars, the mechanisms that push firm to open up their innovation process remain under investigated. The aim of this paper is to contribute to fill in this gap by developing and testing empirically a research framework on the firm specific factors impacting the firm’s degree of openness. In order to reach the research objective, an extensive literature review was performed based on which several research hypotheses were developed. A web-questionnaire was then designed and distributed to the CEOs of food SMEs in Europe. A major result of this study is that network competence – defined as the firm’s ability to establish and use relationships with other organization – drives the firm’s openness in terms of ambidexterity (i.e. new versus existing relationships) and breadth (number of external sources or search channels that the firm relies upon in its innovative activities).
“What Do we Know about Entering Innovation Network by SMEs ?”
Creators: name: Minarelli, Francesca
name: Raggi, Meri
name: Viaggi, Davide
name: Minarelli, Francesca
name: Raggi, Meri
name: Viaggi, Davide
Publisher: name: Unknown
Year: 2013
Subjects: subject: Agribusiness
subject: Food Consumption/Nutrition/Food Safety
subject: Research Methods/ Statistical Methods
subject: Network
subject: food SMEs
subject: innovation

description: The importance of networking as a way to enhance innovation has been pointed out in many scientific papers, in particular for SMEs. A great number of scientific studies clearly establish the significant role of SMEs in economic growth, promoting flexibility and innovation in an economy. The process of successfully engage in a network represents a key for enhancing competitiveness. In order to improve effectiveness of network is pivotal the achievement of a better understanding of SME behavior. The presented work aims to identify factors that characterize food SMEs entering in innovation networks by integrating findings from the literature review with a survey of food SMEs.
Physical properties of the fluorine and neutron-capture element-rich PN Jonckheere 900
Creators: name: Otsuka, Masaaki
name: Hyung, Siek
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We performed detailed spectroscopic analyses of a young C-rich planetary nebula (PN) Jonckheere900 (J900) in order to characterise the properties of the central star and nebula. Of the derived 17 elemental abundances, we present the first determination of eight elemental abundances. We present the first detection of the [F IV] 4059.9 A, [F V] 13.4 um, and [Rb IV] 5759.6 A lines in J900. J900 exhibits a large enhancement of F and neutron-capture elements Se, Kr, Rb, and Xe. We investigated the physical conditions of the H2 zone using the newly detected mid-IR H2 lines while also using the the previously measured near-IR H2 lines, which indicate warm (~670 K) and hot (~3200 K) temperature regions. We built the spectral energy distribution (SED) model to be consistent with all the observed quantities. We found that about 67 % of all dust and gas components (4.5x10^-4 Msun and 0.83 Msun, respectively) exists beyond the ionisation front, indicating critical importance of photodissociation regions in understanding stellar mass loss. The best-fitting SED model indicates that the progenitor evolved from an initially ~2.0 Msun star which had been in the course of the He-burning shell phase. Indeed, the derived elemental abundance pattern is consistent with that predicted by a asymptotic giant branch star nucleosynthesis model for a 2.0 Msun star with Z = 0.003 and partial mixing zone mass of 6.0x10^-3 Msun. Our study demonstrates how accurately determined abundances of C/F/Ne/neutron-capture elements and gas/dust masses help us understand the origin and the internal evolution of the PN progenitors.
description: 22 pages, 11 figures, accepted for publication by MNRAS. The title is corrected for accordance with the paper published by MNRAS
Antarctic regional inversions using Elmer/Ice: methodology
Creators: name: Gladstone, Rupert
name: Wang, Yu
Publisher: name: Zenodo
Year: 2022

description: This document describes simulations of the Pine Island Glacier (PIG) and the Lambert Amery Glacier System (LAGS) carried out using Elmer/Ice. This is a description of experiments that will feature in forthcoming papers. It is made available as a methodology document in order to support other publications that use the outputs from these simulations.
GPS-X Based Simulation and Validation Study for Simultaneous Nitri-Denitrification (SND) Process in Biofloc MBBR
Creators: name: Magdum, Sandip
name: Kalyanraman, V.
Publisher: name: figshare
Year: 2021
Subjects: subject: 90701 Environmental Engineering Design
subject: FOS: Environmental engineering
subject: 90703 Environmental Technologies
subject: 90409 Wastewater Treatment Processes
subject: FOS: Chemical engineering

description: The application of simulation models provides us the fastest mode to analyze and get a design understanding of variable parameters such as incoming contaminant load, flow, and temperature on biological wastewater treatment for the new or retrofitting facility. Overall modelling methods usedfor wastewater treatment plant engineering design assistance, troubleshooting, optimization, planning, operator training, and education purpose. Operational difficulties and new processes such as nutrient removal led to increased use of the models, and this in turn to the need for the creation of mathematical models incorporating all the involved mechanisms. GPS-X simulation software (v7.0, Hydromantis Environmental Software Solutions, Inc., Hamilton, Ontario, Canada) can be utilized for MBBR (moving bed bio-reactor) based system with minimum complexity. The developed biofloc MBBR removes ammoniacal nitrogen from wastewater by using SND (simultaneous nitri-denitrification) process. The purpose of this study is to validate the process design parameters required to achieve optimum SND in biofloc MBBR by using GPS-X simulating software.
The Structure of the Big Bang from Higher-Dimensional Embeddings
Creators: name: Seahra, Sanjeev S.
name: Wesson, Paul S.
Publisher: name: arXiv
Year: 2002
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We give relations for the embedding of spatially-flat Friedmann-Robertson-Walker cosmological models of Einstein's theory in flat manifolds of the type used in Kaluza-Klein theory. We present embedding diagrams that depict different 4D universes as hypersurfaces in a higher dimensional flat manifold. The morphology of the hypersurfaces is found to depend on the equation of state of the matter. The hypersurfaces possess a line-like curvature singularity infinitesimally close to the $t = 0^+$ 3-surface, where $t$ is the time expired since the big bang. The family of timelike comoving geodesics on any given hypersurface is found to have a caustic on the singular line, which we conclude is the 5D position of the point-like big bang.
description: 11 pages, 5 figures, revtex4, accepted in Class. Quant. Grav
The Role of Innovation Intermediaries in Innovation Systems
Creators: name: Nilsson, Magnus
name: Sia-Ljungström, Clarissa
name: Nilsson, Magnus
name: Sia-Ljungström, Clarissa
Publisher: name: Unknown
Year: 2013
Subjects: subject: Agribusiness
subject: Food Consumption/Nutrition/Food Safety
subject: Research Methods/ Statistical Methods
subject: Innovation intermediaries
subject: innovation systems
subject: innovation system functions

description: The paper investigates the role of innovation intermediaries in sector-specific regional innovation systems. Innovation is viewed as a non-linear, iterative process and open process involving multiple actors from different parts of the innovation system. The paper studies in particular innovation intermediaries that provide support to firms in the regional innovation system through the fulfillment of key innovation system functions. The implication of the fulfillment of innovation system functions by innovation intermediaries in the Scandinavian food sector context is examined through in-depth interviews and analysis of secondary documents. It concludes with a discussion on the potential of enabling innovation intermediaries to play a more strategic role in regional innovation system.
Tanaopsis graciloides
Creators: name: Bamber, Roger N.
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Tanaidacea
Tanaopsidae
Tanaopsis
Tanaopsis graciloides

description: Tanaopsis graciloides (Lilljeborg, 1864)
 Tanaopsis graciloides Holdich and Jones, 1983, 64–65; fig. 21.
 Material
 Three neuter, 49  ◦  55.42  ′  N, 06  ◦  16.41  ′  W, muddy sand with some shell breccia, 37 m depth, van Veen grab, 27 June 2009; 1♂, 49  ◦  55.42  ′  N, 06  ◦  16.42  ′  W, muddy sand with some shell breccia, 36 m depth, van Veen grab, 27 June 2009.
 Other records
 One specimen, St Mary’s, 49  ◦  55.33  ′  N, 06  ◦  16.20  ′  W; Munro and Nunny (1998).
 Remarks
 Tanaopsis graciloides is a boreal species found from Norway down to northern France, normally in heterogeneous sediments, as found here. It is common in, for example, the Irish Sea, and its presence (in appropriate habitats) in the Isles of Scilly is no surprise. The record for the Italian coast given by Holdich and Jones (1983) is based on an assumed synonymy of T. laticaudatus (Sars, 1882), but that synonymy has recently been doubted (Bamber et al. 2009).
description: Published as part of Bamber, Roger N., 2011, The marine fauna and flora of the Isles of Scilly. Tanaidacea (Crustacea: Peracarida), pp. 1801-1815 in Journal of Natural History 45 (29 - 30) on page 1810, DOI: 10.1080/00222933.2011.560968, http://zenodo.org/record/5203995
Variational study of two-impurity spin-boson model with a common Ohmic bath: Ground-state phase transitions
Creators: name: Zhou, Nengji
name: Zhang, Yuyu
name: Lu, Zhiguo
name: Zhao, Yang
Publisher: name: arXiv
Year: 2019
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Chemical Physics (physics.chem-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: By means of a trial wave function, the multi-D$_1$ ansatz, extensive variational calculations with more than ten thousand parameters have been carried out to study quantum phase transitions in the ground states of a two-impurity system embedded in a common Ohmic bath of bosons. Quantum criticality in both the impurity system and the Ohmic bosonic bath is investigated with relevant transition points and critical exponents determined accurately. With the linear grid of the Ohmic spectral density, our numerical calculations produce a much better description of the ground states with lower energies than other calculations employing a logarithmic grid with a discretization factor far greater than unity. It offers a possible solution to the considerable controversy on the critical coupling in the literature. Moreover, the ground-state phase transition is inferred to be of first order in the presence of strong antiferromagnetic spin-spin couplin}, at variance with that in the ferromagnetic regime or in the absence of spin-spin coupling where the transition belongs to the Kosterlitz-Thouless universality class.
description: 13 pages, 10 figures
Generalizable Feature Extraction via Transfer Learning in Human Activity Recognition
Creators: name: Ejtehadi, Mehdi
name: Chen, Jiongfan
name: Paez-Granados, Diego
Publisher: name: ETH Zurich
Year: 2024
Subjects: Human activity recognition (HAR)
Activities of daily living
Transfer learning
Machine learning
Classification
Neural networks
info:eu-repo/classification/ddc/004
Data processing, computer science

description: Efficient human activity recognition (HAR) stands as a critical endeavour across various domains, notably in the medical field where it finds applications in rehabilitation monitoring, disease management, and eldercare. However, the acquisition of datasets in this domain poses significant effort. Current state-of-the-art models often confront limitations stemming from the requirement of extensive data collection.
Recognizing the potential of transfer learning in mitigating these challenges, our study introduces a novel pipeline tailored for transforming kinematic signals associated with human motion into a robust feature representation. Central to this pipeline is a generalized feature extraction neural network capable of discerning salient features from diverse kinematic inputs related to human movement.
Complemented by another neural network responsible for fusion and classification tasks, our research showcases the remarkable performance of this generalized feature extraction pipeline. Across 11 publicly available HAR datasets, our approach outperforms numerous state-of-the-art models. Our comparative analyses against baseline models underscore the superior efficacy of our proposed pipeline. 
Our findings highlight the pipeline's exceptional generalization capabilities, even across distinct populations such as those with spinal cord injuries. In essence, our study contributes a significant advancement in HAR, offering a versatile, high-performing solution through the application of transfer learning principles
On the Habitable Lifetime of Terrestrial Worlds with High Radionuclide Abundances
Creators: name: Lingam, Manasvi
name: Loeb, Abraham
Publisher: name: arXiv
Year: 2019
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The presence of a liquid solvent is widely regarded as an essential prerequisite for habitability. We investigate the conditions under which worlds outside the habitable zones of stars are capable of supporting liquid solvents on their surface over geologically significant timescales via combined radiogenic and primordial heat. Our analysis suggests that super-Earths with radionuclide abundances that are $\gtrsim 10^3$ times higher than Earth can host long-lived water oceans. In contrast, the requirements for long-lived ethane oceans, which have been explored in the context of alternative biochemistries, are less restrictive: relative radionuclide abundances of $\gtrsim 10^2$ could be sufficient. We find that this class of worlds might be detectable ($10σ$ detection over $\sim 10$ days integration time at $12.8$ $μ$m) in principle by the James Webb Space Telescope at distances of $\sim 10$ pc if their ages are $\lesssim 1$ Gyr.
description: 7 pages; 4 figures
Knowledge Exchange in Innovation Networks: How Networks Support open Innovation in Food SMEs
Creators: name: Kuhne, Bianka
name: Lefebvre, Virginie M.
name: Gellynck, Xavier
name: Kuhne, Bianka
name: Lefebvre, Virginie M.
name: Gellynck, Xavier
Publisher: name: Unknown
Year: 2013
Subjects: subject: Agribusiness
subject: Food Consumption/Nutrition/Food Safety
subject: Research Methods/ Statistical Methods
subject: knowledge exchange
subject: learning
subject: triple helix networks
subject: SMEs
subject: food industry

description: Knowledge exchange is a prerequisite for learning and consequently for innovation. Through open innovation, the innovating firms establish ties with other organizations, in order to innovate. At the baseline, open innovation is thus the exchange of knowledge through in- and out-flows of the knowledge at a company. Formal networks can provide access to other organizations and otherwise unavailable knowledge and resources and are seen as the locus of innovation. Four main categories of knowledge exchange can be distinguished: socialization, combination, articulation, and internalization. Within these categories, distinct but interdependent processes of knowledge exchange take place as described in the innovation production process (IPP) which consists of three main steps, knowledge accumulation, knowledge transformation, and knowledge exploitation (Roper et al., 2008). The objective of this paper is to explore how formal networks contribute to the categories of knowledge exchange and to each of the three steps of the IPP in order to conclude on how networks can facilitate open innovation among their members. Data are collected by means of three case-studies conducted in three Flemish formal networks which focus on enhancing the innovativeness and learning capabilities of micro, small and medium sized enterprises (SMEs). Our findings confirm the importance of networks in the process of knowledge exchange and innovation for SMEs in the food sector. The most important role of the networks is to create the appropriate environment according to the type of knowledge and the step(s) in the innovation production process focused on. Furthermore, it appears to be a very important task of the network to stimulate actively knowledge transformation into innovation outputs such as new or improved technology or product prototypes. Thereby, not only short-term effects should be aimed at, but also long-term effects e.g. for organizational innovation, should be taken into account. In conclusion, all three networks follow very different approaches in order to facilitate, stimulate and support knowledge exchange and innovation among their members. Based on the results, managerial as well as policy implications are posed towards network members, i.e. the SMEs, network coordinators and researchers.
Stabilizing Homogeneous Black Strings in AdS
Creators: name: Cisterna, Adolfo
name: Henriquez-Baez, Carla
name: Oliva, Julio
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: It is known that homogenous black strings in flat spacetime are unstable under long wavelength perturbations. Recently, by including scalar fields that depend on the extended coordinates only, homogenous black strings have been constructed in the presence of a negative cosmological constant, therefore implying that generic perturbations will contain both metric and scalar fluctuations. Here we show that for such generic perturbations homogeneous black strings with a negative cosmological constant are perturbatively stable at linear level, regardless the size of the Schwarzschild-AdS black hole located on the brane.
description: 7 pages, no figures
Leptochelia savignyi
Creators: name: Bamber, Roger N.
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Tanaidacea
Leptocheliidae
Leptochelia
Leptochelia savignyi

description: Leptochelia savignyi (Krøyer, 1842)
 Leptochelia savignyi Holdich and Jones, 1983, 48–49; fig. 14. Bamber, 2010 (redescription and synonymy).
 Material
 Two subadult ♂♂, 3 brooding ♀♀, 1 neuter, low-littoral Audouinella -bedded sand on boulders, south side of causeway to White Island, northwest St Martin’s, 7 April 2001; 4♂♂, 2♀♀ (1 brooding), shingle in sandy gravel with weed, south of Broad ledge, St Martin’s Flats, 9 April 2001; 4♀♀, 2 neuters, 33 neuters/mancae (BMNH 2009.302 – 311), low-littoral Audouinella -bedded sand on bedrock, Thomas Porth, St Mary’s, 49  ◦  55.18  ′  N, 06  ◦  18.56  ′  W, 27 June 2009. All coll. RNB. 3♀♀, lowlittoral algal turf, Appletree Bay, Tresco, 49  ◦  56.48  ′  N, 06  ◦  20.09  ′  W, 8 September 2010, coll. A.S.Y. Mackie. 1♂, 2 neuters, low-littoral Audouinella -bedded sand, Burnt Island, Periglis Cove, St Agnes, 49  ◦  53.77  ′  N, 06  ◦  21.71  ′  W, 9 September 2010; 18♀♀ (7 brooding), 5♂♂, 6 mancae, mid-littoral Audouinella -bedded sand, North Periglis, St Agnes, 49  ◦  53.78  ′  N, 06  ◦  21.03  ′  W, 9 September 2010; 4♀♀ (1 brooding), lowlittoral Audouinella -bedded sand, Pelistry Bay, St Mary’s, 49  ◦  55.68  ′  N, 06  ◦  16.82  ′  W, 12 September 2010. All coll. RNB.
 Other unpublished material examined
 Three ♀♀ (1 brooding), under stones with holdfasts and Lithothamnium, Pergelis, St Agnes, 11 September 2006 (coll. P R Garwood).
 Other records
 Three specimens, Lion Rock. St Martin’s, 49  ◦  58.93  ′  N, 06  ◦  18.21  ′  W, 1996 (Kendall et al. 1996).
 Remarks
 There has been much controversy over the last hundred years or so about the specific attribution of species of Leptochelia (see, for example, Bamber 2008: pp. 184–186). Recent examination of material from southwestern England has confirmed that the species present there, and including the present Isles of Scilly material, is indeed L. savignyi sensu stricto (Bamber 2010).
 In northeastern Europe the species appears to be restricted to western Ireland, both sides of the English Channel west of 2  ◦  W, and Galicia, northwest Spain (Esquete-Garrote et al. 2009) so presumably there are suitable sites between and its occurrence in the Isles of Scilly was therefore anticipated. The type locality of L. savignyi is Madeira. Like Tanais dulongii in this region, L. savignyi appears to be restricted to littoral algal-bedded sediments, wherein it is likely to be present throughout the archipelago.
description: Published as part of Bamber, Roger N., 2011, The marine fauna and flora of the Isles of Scilly. Tanaidacea (Crustacea: Peracarida), pp. 1801-1815 in Journal of Natural History 45 (29 - 30) on pages 1812-1813, DOI: 10.1080/00222933.2011.560968, http://zenodo.org/record/5203995
Science Meets Reality: Economic Efficiency, Markets, Institutions and Food Security
Creators: name: Pacheco De Carvalho, Bernardo
name: Pacheco De Carvalho, Bernardo
Publisher: name: Unknown
Year: 2013
Subjects: subject: Agribusiness
subject: Food Consumption/Nutrition/Food Safety
subject: Food Security and Poverty
subject: Marketing
subject: FOS: Economics and business
subject: Research Methods/ Statistical Methods
subject: Food Security
subject: Good Governance
subject: Economic Efficiency
subject: Institutional and Market Efficiency

description: Food still is, and will continue to be, a basic issue at every day decision process in human behavior. Food consumption has been a problematic issue in human history and today is also recognized as a basic pilar for human health and welfare/quality of life. From a global problem up to the middle of the eighties, right now food security is mainly a local issue (however a macro-level approach continued to be necessary for long run perspective and food safety concerns in trade and commercialization). Food and nutritional concerns today still are unforgetable issues on a local base perspective in many regions: the most common problems are related to the access and consumption to achieve the minimum nutritional requirements, but also other dimension such as production, transformation, distribution and logistic aspects of the “food equation”, mainly in less developed countries, are crucial aspects to be taken into consideration. Economic effciency from a production perspective in the food sector, measured in terms of output per unit of input (technical and technologial innovation) achieved one of the best performances in terms of development in the last 30 years. The same can not be refered in regard to markets and institutional innovations. In fact, looking at institutions including markets and governments, it is necessary to explore and identify the several observed failures (institutional and governance failures: markets, governmental and others) were science can make a contribution. This is the main purpose of the current research, which is starting based on observed problems and applied solutions with good results in many situations, but also pointing out many other situations were solutions are needed based on the old instruments, but also based on innovative procedures. The methodoly followed explores the basic theorectical approach in production theory and in consumption micro-economic concepts, allowing the introduction of some new purposals in regard to efficiency measures. Adding to those aspects some new questions and models are discussed in regard to the “institutional/organizational economics” in the actual world, providing support for improvement measures ( and policy suggestions). The Brasilien case is explored in more detail ( the “Fome Zero Program”), but also some african examples are used to ilustrate that many solutions will have to rely on technological changes, but also on institutional innovations.
Computing Small 1-Homological Models for Commutative Differential Graded Algebras
Creators: name: Alvarez, Victor
name: Armario, Jose Andres
name: Frau, Maria Dolores
name: Gonzalez-Diaz, Rocio
name: Jimenez, Maria Jose
name: Real, Pedro
name: Silva, Beatriz
Publisher: name: arXiv
Year: 2001
Subjects: subject: Algebraic Topology (math.AT)
subject: Commutative Algebra (math.AC)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 13D03, 16E40

description: We use homological perturbation machinery specific for the algebra category [P. Real. Homological Perturbation Theory and Associativity. Homology, Homotopy and Applications vol. 2, n. 5 (2000) 51-88] to give an algorithm for computing the differential structure of a small 1--homological model for commutative differential graded algebras (briefly, CDGAs). The complexity of the procedure is studied and a computer package in Mathematica is described for determining such models.
description: 17 pages
Consumer Preferences, Ecolabels, and the Effects of Negative Environmental Information
Creators: name: Chen, Xianwen
name: Alfnes, Frode
name: Rickertsen, Kyrre
name: Chen, Xianwen
name: Alfnes, Frode
name: Rickertsen, Kyrre
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agribusiness
subject: Consumer/Household Economics
subject: Food Consumption/Nutrition/Food Safety
subject: environmental information
subject: spillover effect
subject: eco-label
subject: fish
subject: discrete choice
subject: stated preferences

description: Consumers prefer ecolabeled products. However, little is known about the effects of ecolabels when consumers are simultaneously exposed to negative environmental information. We conducted a stated choice experiment in France with eight fish products that were either ecolabeled or unlabeled. Four types of negative information concerning the potential negative environmental consequences of catching wild fish or producing farmed fish were randomly administered to the participants. The data were analyzed by a mixed logit model. Several results emerged. First, there are positive ecolabeling effects on the willingness to pay (WTP) for fish. Second, ecolabeling cannot fully mitigate the negative effects on WTP of negative environmental information. Third, there is a positive effect on the WTP for substitute fish produced with the same production technology as the type of fish that receives negative environmental information.
The Effect of Biotechnology and Biofuels on U.S. Corn Belt Cropping Systems: Updated Version
Creators: name: Fausti, Scott W.
name: Van Der Sluis, Evert
name: Qasmi, Bashir A.
name: Lundgren, Jonathan
name: Fausti, Scott W.
name: Van Der Sluis, Evert
name: Qasmi, Bashir A.
name: Lundgren, Jonathan
Publisher: name: Unknown
Year: 2014
Subjects: subject: Crop Production/Industries
subject: Environmental Economics and Policy
subject: Research Methods/ Statistical Methods
subject: Resource /Energy Economics and Policy
subject: Gm Corn Diffusion
subject: Corn Production
subject: Biofuel Policy
subject: Crop Rotation Patterns
subject: Longitudinal Analysis

description: The effects of transgenic crop and federal biofuel policy on state-level cropping patterns in the Corn Belt region are investigated (2000-2012). The literature links the expansion of corn acreage to the supplanting of small grain and hay acreage in this region. Empirical evidence generated by a random intercept model with fixed effects indicates that the intensification of corn acres planted was positively impacted by biotech advancements in energy and agriculture. This suggests producers are moving away from diverse cropping patterns and the rotational practices associated with a diverse crop planting strategy. However, the empirical evidence suggests that the effects of these biotech advancements on producer planting decisions are heterogeneous across states. Thus, future policy changes affecting producer corn production decisions will not be uniform across States.
Prevalence and Cost of On-Farm Produce Safety Measures in the Mid-Atlantic
Creators: name: Lichtenberg, Erik
name: Tselepidakis, Elina
name: Lichtenberg, Erik
name: Tselepidakis, Elina
Publisher: name: Unknown
Year: 2014
Subjects: subject: Farm Management
subject: Food Consumption/Nutrition/Food Safety
subject: food safety
subject: Food Safety Modernization Act
subject: Produce Rule
subject: tomatoes
subject: leafy greens

description: We use data from a survey of leafy greens and tomato growers in the Mid-Atlantic region to investigate the prevalence and cost of produce safety practices required under the proposed Produce Rule implementing the Food Safety Modernization Act. Majorities of our respondents currently employ most of the food safety practices that would be required under the proposed Produce Rule. But the Produce Rule will nevertheless require changes on the part of a large number of growers. We find no evidence that the use of any of these practices is correlated with farm size. We do find some evidence that the shares of product sold to grocery/retail and to restaurants are positively correlated with the probability of testing water, soil amendments or product, consistent with theoretical literature suggesting that traceability increases incentives to take precautionary measures. We find that all of these practices exhibit substantial increasing returns to scale, implying that the burden of complying with the provisions of the Produce Rule is much lower for large operations than small ones. Our estimates suggest in addition that compliance costs are likely to be burdensome only for a handful of practices, notably testing of soil amendments, employee training, facility sanitation, and sanitizing harvest containers; further, that burden is likely to be much greater for small and very small operations than for large ones.
Willingness to Pay for Sensor-Controlled Irrigation
Creators: name: Lichtenberg, Erik
name: Majsztrik, John
name: Saavoss, Monica
name: Lichtenberg, Erik
name: Majsztrik, John
name: Saavoss, Monica
Publisher: name: Unknown
Year: 2014
Subjects: subject: Research and Development/Tech Change/Emerging Technologies
subject: Resource /Energy Economics and Policy
subject: irrigation technology adoption
subject: precision irrigation
subject: sensor network
subject: moisture sensor
subject: water saving technology
subject: willingness to pay

description: Water scarcity is likely to increase in the coming years, making improvements in irrigation efficiency increasingly important. An emerging technology that promises to increase irrigation efficiency substantially is a wireless irrigation sensor network that uploads sensor data into irrigation management software, creating an integrated system that allows real-time monitoring and control of moisture status that has been shown in experimental settings to reduce irrigation costs, lower plant loss rates, shorten production times, decrease pesticide application, and increase yield, quality, and profit. We use an original survey to investigate likely initial acceptance, ceiling adoption rates, and profitability of this new sensor network technology in the nursery and greenhouse industry. We find that adoption rates for a base system and demand for expansion components are decreasing in price, as expected. The price elasticity of the probability of adoption suggests that sensor networks are likely to diffuse at a rate somewhat greater than that of drip irrigation. Adoption rates for a base system and demand for expansion components are increasing in specialization in ornamental production: Growers earning greater shares of revenue from greenhouse and nursery operations are willing to pay more for a base system and willing to purchase larger numbers of expansion components at any given price. We estimate that growers who are willing to purchase a sensor network expect investment in this technology to generate significant profit, consistent with findings from experimental studies.
21cm Global Signal Extraction: Extracting the 21cm Global Signal using Artificial Neural Networks
Creators: name: Choudhury, Madhurima
name: Datta, Abhirup
name: Chakraborty, Arnab
Publisher: name: arXiv
Year: 2019
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The study of the cosmic Dark Ages, Cosmic Dawn, and Epoch of Reionization (EoR) using the all-sky averaged redshifted HI 21cm signal, are some of the key science goals of most of the ongoing or upcoming experiments, for example, EDGES, SARAS, and the SKA. This signal can be detected by averaging over the entire sky, using a single radio telescope, in the form of a Global signal as a function of only redshifted HI 21cm frequencies. One of the major challenges faced while detecting this signal is the dominating, bright foreground. The success of such detection lies in the accuracy of the foreground removal. The presence of instrumental gain fluctuations, chromatic primary beam, radio frequency interference (RFI) and the Earth's ionosphere corrupts any observation of radio signals from the Earth. Here, we propose the use of Artificial Neural Networks (ANN) to extract the faint redshifted 21cm Global signal buried in a sea of bright Galactic foregrounds and contaminated by different instrumental models. The most striking advantage of using ANN is the fact that, when the corrupted signal is fed into a trained network, we can simultaneously extract the signal as well as foreground parameters very accurately. Our results show that ANN can detect the Global signal with $\gtrsim 92 \%$ accuracy even in cases of mock observations where the instrument has some residual time-varying gain across the spectrum.
description: 14 pages, 18 figures. Published in MNRAS
Consumption externalities and preference complementarities
Creators: name: Cleary, Rebecca
name: Carlson, Andrea
name: Cleary, Rebecca
name: Carlson, Andrea
Publisher: name: Unknown
Year: 2014
Subjects: Consumer/Household Economics

description: Social interactions can lead to a variety of phenomena including consumption externalities and complementarities. Consumption externalities arise when the choices of others have an effect on the total value of a household's purchases; complementarities arise when the choices of others have an effect on the marginal value of a household's purchases. This paper develops a conceptual model that separately identifies consumption externalities and complementarities and illustrates their significance in an application to a household's choice of grocery store. We propose empirical measures of the value of consumption externalities and complementarities based on the benefit function and show how the two effects can be identified separately using household level data. Preliminary results show that purchases at traditional grocery stores have both positive externalities on other shoppers and complementarities with others' purchases whereas purchases at superstores have negative externalities on other shoppers and show no complementarity with others' purchases, even if those purchases are also made at a superstore.
Homology stability for Unitary groups II
Creators: name: Mirzaii, Behrooz
Publisher: name: arXiv
Year: 2003
Subjects: subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics
subject: 05E25; 11E57; 19B14; 19D55

description: In this note the homology stability problem for hyperbolic unitary groups over a local ring with an infinite residue field is studied.
description: 19 pages, Latex
Spin-reorientation critical dynamics in the two-dimensional XY model with a domain wall
Creators: name: Lei, X. W.
name: Zhou, N. J.
name: He, Y. Y.
name: Zheng, B.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In recent years, static and dynamic properties of non-$180^\circ$ domain walls in magnetic materials have attracted a great deal of interest. In this paper, spin-reorientation critical dynamics in the two-dimensional XY model is investigated with Monte Carlo simulations and theoretical analyses based on the Langevin equation. At the Kosterlitz-Thouless phase transition, dynamic scaling behaviors of the magnetization and the two-time correlation function are carefully analyzed, and critical exponents are accurately determined. When the initial value of the angle between adjacent domains is slightly lower than $π$, a critical exponent is introduced to characterize the abnormal power-law increase of the magnetization in the horizontal direction inside the domain interface, which is measured to be $ψ=0.0568(8)$. Besides, the relation $ψ=η/2z$ is analytically deduced from the Langevin dynamics in the long-wavelength approximation, well consistent with numerical results.
description: 11 pages, 5 figures
The hGIDGID4 E3 ubiquitin ligase complex targets ARHGAP11A to regulate cell migration
Creators: name: Bagci, Halil
name: Winkler, Martin
name: Uliana, Federico
name: Boulais, Jonathan
name: Mohamed, Weaam I.
name: Park, Sophia L.
name: Côté, Jean-François
name: Peter, Matthias
Publisher: name: ETH Zurich
Year: 2023
Subjects: BioID
GID
E3 ligase
Ubiquitin
Cell migration
ARHGAP11A
RhoA

description: The human CTLH/GID (hGID) complex emerged as an important E3 ligase regulating multiple cellular processes, including cell cycle progression and metabolic activity. However, the range of biological functions controlled by hGID remains unexplored. Here, we show that the hGID substrate receptor GID4 regulates cell growth and migration. Biochemical and cellular assays combined with proximity-dependent biotinylation (BioID2) revealed that the hGIDGID4 E3-ligase targets the Rho-GAP ARHGAP11A for degradation. Depletion of GID4 or impeding the GID4 substrate binding pocket impairs motility and directed cell movement, whereas knockdown of ARHGAP11A significantly restores the cell migration defect. We found that GID4 controls cell migration by degrading ARHGAP11A thereby preventing its accumulation at the cell periphery where it inactivates RhoA activity. Together, we identified a unique function for GID4, as well as a wide range of substrate profiles beyond Pro/N-degron motifs, which pave the way for deciphering additional pathways regulated by hGID E3 ligase activity through its GID4 substrate receptor.
description: bioRxiv
Gansuceratoikiscum Wang, Cheng & Zhang 2010
Creators: name: Noble, Paula
name: Aitchison, Jonathan C.
name: Danelian, Taniel
name: Dumitrica, Paulian
name: Maletz, Jörg
name: Suzuki, Noritoshi
name: Cuvelier, Jessie
name: Caridroit, Martial
name: O'Dogherty, Luis
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Chromista
Retaria
Polycystinea
Albaillellaria
Ceratoikiscidae
Gansuceratoikiscum

description: Gansuceratoikiscum Wang, Cheng & Zhang, 2010
 Gansuceratoikiscum Wang, Cheng & Zhang, 2010: 48.
 TYPE SPECIES. — Gansuceratoikiscum guanzhuangensis Wang, Cheng & Zhang, 2010 (Wang et al. 2010: 473, pl. 1, fig. 11).
AGE AND LOCATION OF TYPE MATERIAL. — Sandbian, Upper Ordovician, Pingliang Formation, Gansu Province, China.
TAXON CODE. — 015.
STATUS. — Valid.
 DIAGNOSIS. — “Six rod-like primary spines positioned in eccentric place. The pairs of caveal ribs are paired on the dorsal rod of the a-rod; The patagial tissue is present on one lateral side of the i-rod. A single row of arches (or by-spines) connect the primary spines, forming a simple cortical shell.”(Wang et al. 2010: 48).
REMARKS
 This genus differs from Protoceratoikiscum in that it has a framework composed of 6 rods connecting to a median bar. Ceratoikisum has 3 rods (a, b, intersector) that cross to form a triangle. It differs from Protoceratoikiscum in that it possesses row of arches that connect the primary rods to form a subcircular shell, and the rods join in an eccentric position in Gansuceratoikiscum.
description: Published as part of Noble, Paula, Aitchison, Jonathan C., Danelian, Taniel, Dumitrica, Paulian, Maletz, Jörg, Suzuki, Noritoshi, Cuvelier, Jessie, Caridroit, Martial & O'Dogherty, Luis, 2017, Taxonomy of Paleozoic radiolarian genera, pp. 419-502 in Geodiversitas 39 (3) on page 424, DOI: 10.5252/g2017n3a4, http://zenodo.org/record/5206585
Generation of massive stellar black holes by rapid gas accretion in primordial dense clusters
Creators: name: Roupas, Zacharias
name: Kazanas, Demosthenes
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Supernova theory suggests that black holes of a stellar origin cannot attain masses in the range of 50-135 solar masses in isolation. We argue here that this mass gap is filled in by black holes that grow by gas accretion in dense stellar clusters, such as protoglobular clusters. The accretion proceeds rapidly, during the first 10 megayears of the cluster life, before the remnant gas is depleted. We predict that binaries of black holes within the mass gap can be observed by LIGO.
description: Minor typos corrected in final version
Glanta Umeda 1998
Creators: name: Noble, Paula
name: Aitchison, Jonathan C.
name: Danelian, Taniel
name: Dumitrica, Paulian
name: Maletz, Jörg
name: Suzuki, Noritoshi
name: Cuvelier, Jessie
name: Caridroit, Martial
name: O'Dogherty, Luis
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Chromista
Retaria
Polycystinea
Albaillellaria
Ceratoikiscidae
Glanta

description: Glanta Wakamatsu, Sugiyama & Furutani, 1990 sensu Umeda (1998)
 Glanta Wakamatsu, Sugiyama & Furutani, 1990: 180. — Umeda 1998: 98.
 TYPE SPECIES. — Glanta fragilis Wakamatsu, Sugiyama & Furutani, 1990 (Wakamatsu et al. 1990: 181, pl. 12, figs 1-7).
 AGE AND LOCATION OF TYPE MATERIAL. — Tlecerina - Glanta assemblage, Middle Devonian, Kurosegawa tectonic zone, southwest Japan.
TAXON CODE. — 016.
STATUS. — Valid.
 ORIGINAL DIAGNOSIS. — “ Ceratoikiscidae with bilaterally symmetric shell. Central skeletal frame triangular with five to six extratriangular rods. Shell perforate or imperforate, covering a.t. and the dorsal portion of i.t., supported by many trabeculae arising from a.t. and the dorsal portion of i.t. Aperture of the shell facing to the ventral portion of b.t. Single pair of free-developed caveal ribs originating from a-/b- junction, projecting almost perpendicularly to the central skeletal plane.”(Wakamatsu et al. 1990: 180).
REMARKS
Umeda (1998) emends the diagnosis to indicate that the lamellar shell is always perforate.
description: Published as part of Noble, Paula, Aitchison, Jonathan C., Danelian, Taniel, Dumitrica, Paulian, Maletz, Jörg, Suzuki, Noritoshi, Cuvelier, Jessie, Caridroit, Martial & O'Dogherty, Luis, 2017, Taxonomy of Paleozoic radiolarian genera, pp. 419-502 in Geodiversitas 39 (3) on page 424, DOI: 10.5252/g2017n3a4, http://zenodo.org/record/5206585