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Journal articles on the topic 'Model of reduced forms'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Majda, A. J., C. Franzke, and D. Crommelin. "Normal forms for reduced stochastic climate models." Proceedings of the National Academy of Sciences 106, no. 10 (2009): 3649–53. http://dx.doi.org/10.1073/pnas.0900173106.

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Ahuja, Sanjeev, and Raj Kumar Arya. "Comparison of the Performances of Different Reduced Forms of a Condenser Model." Chemical Engineering & Technology 40, no. 9 (2017): 1630–37. http://dx.doi.org/10.1002/ceat.201600114.

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Lang, Zhe, and Yunpeng Zhang. "Parameter identification and performance estimation for PV modules based on reduced forms model." Journal of Renewable and Sustainable Energy 12, no. 5 (2020): 053703. http://dx.doi.org/10.1063/5.0019511.

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Clayards, Meghan. "Using probability distributions to account for recognition of canonical and reduced word forms." LSA Annual Meeting Extended Abstracts 1 (May 2, 2010): 49. http://dx.doi.org/10.3765/exabs.v0i0.529.

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The frequency of a word form influences how efficiently it is processed, but canonical forms often show an advantage over reduced forms even when the reduced form is more frequent. This paper addresses this paradox by considering a model in which representations of lexical items consist of a distribution over forms. Optimal inference given these distributions accounts for item based differences in recognition of phonological variants and canonical form advantage.

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Abdelkaher Ait Abdelouahad, Mohammed El Hassouni, Hocine Cherifi, and Driss Aboutajdine. "A Reduced Reference Image Quality Measure Using Bessel K Forms Model for Tetrolet Coefficients." Journal of Convergence Information Technology 6, no. 11 (2011): 216–24. http://dx.doi.org/10.4156/jcit.vol6.issue11.25.

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Pankratov, Timofei A., Yuri A. Nikolaev, Yulia K. Yushina, Ekaterina N. Tikhonova, and Galina I. El-Registan. "Forms of Bacterial Survival in Model Biofilms." Coatings 12, no. 12 (2022): 1913. http://dx.doi.org/10.3390/coatings12121913.

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Bacterial survival upon sharp fluctuations of environmental parameters and exposure to lethal doses of stressors (antibiotics, disinfectants, heat shock, and others) is ensured by the use of different strategies of resistance, an important place among which is occupied by the forms with reduced or stopped metabolism, antibiotic tolerant (AT) persister (P) cells, anabiotic dormant forms (DFs), and viable but non-culturable (VBNC) cells. Elucidating the role of these forms of bacterial resistance to an impact of chemical and biological toxicants and physical stressors is of great fundamental and

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Haywood, Annika F. M., та Brian E. Staveley. "Mutant α-synuclein-induced degeneration is reduced by parkin in a fly model of Parkinson's disease". Genome 49, № 5 (2006): 505–10. http://dx.doi.org/10.1139/g06-011.

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Parkinson's disease (PD) patients show a characteristic loss of motor control caused by the degeneration of dopaminergic neurons. Mutations in the genes that encode α-synuclein and parkin have been linked to inherited forms of this disease. The parkin protein functions as a ubiquitin ligase that targets proteins for degradation. Expression of isoforms of human α-synuclein in the Drosophila melanogaster nervous system forms the basis of an excellent genetic model that recapitulates phenotypic and behavioural features of PD. Using this model, we analysed the effect of parkin co-expression on the

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Eti, Can Mehmet, Yusuf Vayιsoǧlu, Berkan Kardaş, et al. "Histopathologic Evaluation of Ecballium Elaterium Applied Nasal Mucosa in Rat Rhinosinusitis Model." Ear, Nose & Throat Journal 97, no. 6 (2018): 1–19. http://dx.doi.org/10.1177/014556131809700616.

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This study aims to evaluate the antimicrobial effects of Ecballium Elaterium (E.E) that is topically applied for treatment of rhinosinusitis as a traditional medicine. Pure and extract forms of E.E are applied to the nasal cavity of rats for rhinosinusitis. Nasal mucosa, soft palate and trachea of rats were harvested in the first hour, 3rd day and 3rd week for histopathological evaluation. This experimental study revealed antiinflammatory effects of E.E. It has also been shown that E.E reduced fibrosis. The antiinflammatory effect of all forms of E.E has been found to be at their maximum level

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Mizuta, Genta, and Akira Masuda. "An Application of a Diffusive Reduced-Gravity Model to Deep Circulation above Various Forms of Bottom Topography." Journal of Physical Oceanography 33, no. 2 (2003): 451–64. http://dx.doi.org/10.1175/1520-0485(2003)033<0451:aaoadr>2.0.co;2.

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SHIL'NIKOV, A. L., L. P. SHIL'NIKOV, and D. V. TURAEV. "NORMAL FORMS AND LORENZ ATTRACTORS." International Journal of Bifurcation and Chaos 03, no. 05 (1993): 1123–39. http://dx.doi.org/10.1142/s0218127493000933.

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Normal forms for eleven cases of bifurcations of codimension-3 are considered, basically, in systems with a symmetry, which can be reduced to one of the two three-dimensional systems. The first system is the well-known Lorenz model in a special notation, the second is the Shimizu-Morioka model. In contrast with two-dimensional normal forms which admit, in principle, a complete theoretical study, in three-dimensional systems such analysis is practically impossible, except for particular parameter values when a system is close to an integrable system. Therefore, the main method of the investigat

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Seidler, Marc J., Stefanie Salvenmoser, and Frank-Michael C. Müller. "Aspergillus fumigatus Forms Biofilms with Reduced Antifungal Drug Susceptibility on Bronchial Epithelial Cells." Antimicrobial Agents and Chemotherapy 52, no. 11 (2008): 4130–36. http://dx.doi.org/10.1128/aac.00234-08.

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ABSTRACT Aspergillus fumigatus is a leading cause of death in immunocompromised patients and a frequent colonizer of the respiratory tracts of asthma and cystic fibrosis (CF) patients. Biofilms enable bacteria and yeasts to persist in infections and can contribute to antimicrobial resistance. We investigated the ability of A. fumigatus to form biofilms on polystyrene (PS) and human bronchial epithelial (HBE) and CF bronchial epithelial (CFBE) cells. We developed a novel in vitro coculture model of A. fumigatus biofilm formation on HBE and CFBE cells. Biofilm formation was documented by dry wei

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Ahmed, Shady E., Omer San, Kursat Kara, Rami Younis, and Adil Rasheed. "Multifidelity computing for coupling full and reduced order models." PLOS ONE 16, no. 2 (2021): e0246092. http://dx.doi.org/10.1371/journal.pone.0246092.

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Hybrid physics-machine learning models are increasingly being used in simulations of transport processes. Many complex multiphysics systems relevant to scientific and engineering applications include multiple spatiotemporal scales and comprise a multifidelity problem sharing an interface between various formulations or heterogeneous computational entities. To this end, we present a robust hybrid analysis and modeling approach combining a physics-based full order model (FOM) and a data-driven reduced order model (ROM) to form the building blocks of an integrated approach among mixed fidelity de

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Zhang, Chi, Shanli Zhang, Harrif Santo, Minbo Cai, Modi Yu, and Michael Si. "Combining Reduced-Order Stick Model with Full-Order Finite Element Model for Efficient Analysis of Self-Elevating Units." Journal of Marine Science and Engineering 11, no. 1 (2023): 119. http://dx.doi.org/10.3390/jmse11010119.

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Reduced-order stick models are frequently employed to obtain dynamic amplification factors of self-elevating units (SEU), while the full-order finite element (FE) models are used for quasi-static analyses. This paper develops an efficient framework to create structural digital twins for SEUs by combining both stick models and full-order FE models. A stick model and a detailed FE model of an in-house developed generic SEU are established, respectively, following the standard industry guideline. Dynamic analyses are performed for the stick model based on the modal superposition method. Assuming

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Znojil, Miloslav. "Calogero-like Model without Rearrangement Symmetry." Symmetry 16, no. 1 (2023): 27. http://dx.doi.org/10.3390/sym16010027.

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Reinterpretation of mathematics behind the exactly solvable Calogero’s A-particle quantum model is used to propose its generalization. Firstly, it is argued that the strongly singular nature of Calogero’s particle–particle interactions makes the original permutation-invariant Hamiltonian tractable as a direct sum H=⨁Ha of isospectral components, which are mutually independent. Secondly, after the elimination of the center-of-mass motion, the system is reconsidered as existing in the reduced Euclidean space RA−1 of relative coordinates and decaying into a union of subsets Wa called Weyl chamber

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Na, Hana, Hua Tian, Zhengrong Zhang, et al. "Oral Amylin Treatment Reduces the Pathological Cascade of Alzheimer’s Disease in a Mouse Model." American Journal of Alzheimer's Disease & Other Dementiasr 36 (January 1, 2021): 153331752110128. http://dx.doi.org/10.1177/15333175211012867.

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Intraperitoneal injection of amylin or its analog reduces Alzheimer’s disease (AD) pathology in the brains. However, self-injecting amylin analogs is difficult for patients due to cognitive deficits. This work aims to study the effects of amylin on the brain could be achieved by oral delivery as some study reported that amylin receptor may be present in the gastrointestinal tract. A 6-week course of oral amylin treatment reduced components of AD pathology, including the levels of amyloid-β, phosphorylated tau, and ionized calcium binding adaptor molecule 1. The treatment reduced active forms o

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Liu, Yong, Xiang Zhu, Feng-ling Yu, et al. "Teratogenicity of Staphylococcus aureus L-forms using a mouse whole-embryo culture model." Journal of Medical Microbiology 62, no. 5 (2013): 677–82. http://dx.doi.org/10.1099/jmm.0.045955-0.

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Our previous studies have suggested that Staphylococcus aureus L-forms are able to pass through the placental barrier of mice from the maternal side to the fetal body and affect fetal growth and development, but little is known about the direct influence of S. aureus L-forms on embryos during the critical period of organogenesis. Mouse embryos at gestational day 8.5 were cultured in vitro for 48 h with 0, 50, 100, 200 or 400 c.f.u. S. aureus L-forms ml−1. At the end of the culture period, the mouse embryos were assessed morphologically for viability, growth and development. Bacteriological and

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Peszynska, Malgorzata, Joseph Umhoefer, and Choah Shin. "Reduced Model for Properties of Multiscale Porous Media with Changing Geometry." Computation 9, no. 3 (2021): 28. http://dx.doi.org/10.3390/computation9030028.

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In this paper, we consider an important problem for modeling complex coupled phenomena in porous media at multiple scales. In particular, we consider flow and transport in the void space between the pores when the pore space is altered by new solid obstructions formed by microbial growth or reactive transport, and we are mostly interested in pore-coating and pore-filling type obstructions, observed in applications to biofilm in porous media and hydrate crystal formation, respectively. We consider the impact of these obstructions on the macroscopic properties of the porous medium, such as poros

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18

Talić, Aida. "Long-Form and Short-Form Prenominal Adjectives Are Not Reduced Relative Clauses in Bosnian/Croatian/Serbian." Linguistic Inquiry 48, no. 1 (2017): 194–212. http://dx.doi.org/10.1162/ling_a_00241.

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Cinque (2010) treats prenominal adjectives in languages like Bosnian/Croatian/Serbian (BCS) and English either as APs in the specifiers of functional projections in the extended domain of N (direct modification) or as predicates in reduced relative clauses in the specifiers of functional projections (indirect modification), while postnominal adjectives in these languages are treated only as predicates in reduced relative clauses. In this model, the direct-modification source is associated with one set of interpretations and the indirect-modification source with a different set of interpretatio

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Kleibergen, Frank, and Herman K. van Dijk. "BAYESIAN SIMULTANEOUS EQUATIONS ANALYSIS USING REDUCED RANK STRUCTURES." Econometric Theory 14, no. 6 (1998): 701–43. http://dx.doi.org/10.1017/s0266466698146017.

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Diffuse priors lead to pathological posterior behavior when used in Bayesian analyses of simultaneous equation models (SEM's). This results from the local nonidentification of certain parameters in SEM's. When this a priori known feature is not captured appropriately, it results in an a posteriori favoring of certain specific parameter values that is not the consequence of strong data information but of local nonidentification. We show that a proper consistent Bayesian analysis of a SEM explicitly has to consider the reduced form of the SEM as a standard linear model on which nonlinear (reduce

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Melis, Valeria, Mandy Magbagbeolu, Janet E. Rickard, et al. "Effects of oxidized and reduced forms of methylthioninium in two transgenic mouse tauopathy models." Behavioural Pharmacology 26, no. 4 (2015): 353–68. http://dx.doi.org/10.1097/fbp.0000000000000133.

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21

Urozayev, Dias, Boujemaa Ait-El-Fquih, Ibrahim Hoteit, and Daniel Peter. "A reduced-order variational Bayesian approach for efficient subsurface imaging." Geophysical Journal International 229, no. 2 (2021): 838–52. http://dx.doi.org/10.1093/gji/ggab507.

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SUMMARY This work considers the reconstruction of a subsurface model from seismic observations, which is known to be a high-dimensional and ill-posed inverse problem. Two approaches are combined to tackle this problem: the discrete cosine transform (DCT) approach, used in the forward modelling step, and the variational Bayesian (VB) approach, used in the inverse reconstruction step. VB can provide not only point estimates but also closed forms of the full posterior probability distributions. To efficiently compute such estimates of the full joint posterior distributions of large-scale seismic

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22

DI LEO, LEO, and JURIJ W. DAREWYCH. "HIGGS BOSON DECAY AND QUASI-BOUND STATES IN THE HIGGS MODEL." International Journal of Modern Physics A 11, no. 32 (1996): 5659–83. http://dx.doi.org/10.1142/s0217751x96002601.

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We calculate two-Higgs bound states (Higgsonium) as resonances in Z0−Z0 scattering using a |Z0Z0>+|h>+|hh>+|hhh>+|hhhhh> Fock-space ansatz in a Hamiltonian formalism of the Higgs model. The variational method is used to obtain coupled integral equations connecting the various channels. Reduced forms of these equations are solved analytically in the case of the Z0Z0−h channels, and numerically for the Z0Z0−hh channels for particular choices of the coupling parameters.

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23

Chauhan, Uttam, and Apurva Shah. "Improving Semantic Coherence of Gujarati Text Topic Model Using Inflectional Forms Reduction and Single-letter Words Removal." ACM Transactions on Asian and Low-Resource Language Information Processing 20, no. 1 (2021): 1–18. http://dx.doi.org/10.1145/3447760.

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A topic model is one of the best stochastic models for summarizing an extensive collection of text. It has accomplished an inordinate achievement in text analysis as well as text summarization. It can be employed to the set of documents that are represented as a bag-of-words, without considering grammar and order of the words. We modeled the topics for Gujarati news articles corpus. As the Gujarati language has a diverse morphological structure and inflectionally rich, Gujarati text processing finds more complexity. The size of the vocabulary plays an important role in the inference process an

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Leśniańska, Aleksandra, Beata Janowska, and Robert Sidełko. "Immobilization of Zn and Cu in Conditions of Reduced C/N Ratio during Sewage Sludge Composting Process." Energies 15, no. 12 (2022): 4507. http://dx.doi.org/10.3390/en15124507.

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In this paper we present results of research on the transformation of chemical forms of two elements (Cu, Zn) that occurred at the highest concentration in sewage sludge being processed in a composting process. The factor that had impact on the direction of the observed transformation was the amount of straw added to the mix with sewage sludge at the batch preparation stage including elimination of an additional source of organic carbon (straw). The analysis of contents of Cu and Zn chemical forms was performed applying Tessiere’s methodology. It was ascertained that reduction of supplementati

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Al-Jifri, Mohamed, Hazim Al-Attar, and Fathi Boukadi. "New proxy models for predicting oil recovery factor in waterflooded heterogeneous reservoirs." Journal of Petroleum Exploration and Production Technology 11, no. 3 (2021): 1443–59. http://dx.doi.org/10.1007/s13202-021-01095-4.

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AbstractTo predict the recovery factor (RF) in waterflooded layered oil reservoirs, two empirical relationships were derived. Both correlations use four independent variables. These are reservoir heterogeneity (characterized by permeability variation coefficient), permeability anisotropy (ratio of vertical to horizontal permeability), viscosity of the injected water, and water injection rate. One of the correlations estimates RF at water breakthrough time (RFBT) and the other evaluates RF at the end of project (RFEOP). Each correlation comes in an expanded form with more parameters and a reduc

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Moyer-Gusé, Emily, Katherine R. Dale, and Michelle Ortiz. "Reducing Prejudice Through Narratives." Journal of Media Psychology 31, no. 4 (2019): 185–95. http://dx.doi.org/10.1027/1864-1105/a000249.

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Abstract. Recent extensions to the contact hypothesis reveal that different forms of contact, such as mediated intergroup contact, can reduce intergroup anxiety and improve attitudes toward the outgroup. This study draws on existing research to further consider the role of identification with an ingroup character within a narrative depicting intergroup contact between Muslim and non-Muslim Americans. Results reveal that identification with the non-Muslim (ingroup) model facilitated liking the Muslim (outgroup) model, which reduced prejudice toward Muslims more generally. Identification with th

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Firouz-Abadi, Rohollah Dehghani, and Mohammad Reza Borhan Panah. "Development of an aeroelastic model based on system identification using boundary elements method." Aircraft Engineering and Aerospace Technology 94, no. 3 (2021): 360–71. http://dx.doi.org/10.1108/aeat-01-2021-0025.

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Purpose The purpose of this paper is to analyze the stability of aeroelastic systems using a novel reduced order aeroelastic model. Design/methodology/approach The proposed aeroelastic model is a reduced-order model constructed based on the aerodynamic model identification using the generalized aerodynamic force response and the unsteady boundary element method in various excitation frequency values. Due to the low computational cost and acceptable accuracy of the boundary element method, this method is selected to determine the unsteady time response of the aerodynamic model. Regarding the st

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Smith, Stephen, and Neil Dalchau. "Model reduction enables Turing instability analysis of large reaction–diffusion models." Journal of The Royal Society Interface 15, no. 140 (2018): 20170805. http://dx.doi.org/10.1098/rsif.2017.0805.

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Synthesizing a genetic network which generates stable Turing patterns is one of the great challenges of synthetic biology, but a significant obstacle is the disconnect between the mathematical theory and the biological reality. Current mathematical understanding of patterning is typically restricted to systems of two or three chemical species, for which equations are tractable. However, when models seek to combine descriptions of intercellular signal diffusion and intracellular biochemistry, plausible genetic networks can consist of dozens of interacting species. In this paper, we suggest a me

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Yamada, Naoyuki, Kazuyuki Kubota, Ei-ichiro Suzuki, Akira Nakayama, Kenji Takehana, and Asami Kawakami. "A Simple Stabilization Method of Reduced Albumin in Blood and Plasma for the Reduced/Oxidized Albumin Ratio Measurement." International Journal of Biomedical Science 5, no. 3 (2009): 293–301. http://dx.doi.org/10.59566/ijbs.2009.5293.

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Albumin (Alb) is mixture of reduced and oxidized forms. It is physiologically significant to determine Alb(red)%, which is the proportion of reduced Alb in the sum of Alb. However, reduced Alb in both blood and plasma samples is easily converted to oxidized Alb. Accordingly, the stabilization of Alb in samples is necessary to determine precise Alb(red)% values.Alb stabilization in blood or plasma was achieved by pH control and buffer dilution. At least a 50-fold dilution with 50 mmol/l phosphate buffer (pH 6.0) was required for human plasma. For human blood, a 10-fold dilution with 0.5 mol/l s

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Sreedharan, Sarath, Tathagata Chakraborti, and Subbarao Kambhampati. "Handling Model Uncertainty and Multiplicity in Explanations via Model Reconciliation." Proceedings of the International Conference on Automated Planning and Scheduling 28 (June 15, 2018): 518–26. http://dx.doi.org/10.1609/icaps.v28i1.13930.

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Model reconciliation has been proposed as a way for an agent to explain its decisions to a human who may have a different understanding of the same planning problem by explaining its decisions in terms of these model differences.However, often the human's mental model (and hence the difference) is not known precisely and such explanations cannot be readily computed.In this paper, we show how the explanation generation process evolves in the presence of such model uncertainty or incompleteness by generating {\em conformant explanations} that are applicable to a set of possible models.We also sh

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Bronsard, Camille, and Lise Salvas-Bronsard. "Sur l’estimation d’un système complet de demande sous rationnements quantitatifs." Articles 55, no. 3 (2009): 286–302. http://dx.doi.org/10.7202/800832ar.

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The paper is divided into two parts. In the first one, three complete systems of demand equations are derived, namely, the standard neo-classical model, a model under quantity rationing and the general reduced form of walrasian models. The standard neo-classical model has no spillover eflects while the other models allow for them. But the spillover effects of the general reduced form are walrasian while the spillover effects of the model with quantity rationing can be specified as keynesian. In the second part of the paper, the authors try to discriminate among these forms on empirical grounds

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Figge, Frank. "Capital Substitutability and Weak Sustainability Revisited: The Conditions for Capital Substitution in the Presence of Risk." Environmental Values 14, no. 2 (2005): 185–201. http://dx.doi.org/10.1177/096327190501400204.

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The capital approach is frequently used to model sustainability. A development is deemed to be sustainable when capital is not reduced. There are different definitions of sustainability, based on whether or not they allow that different forms of capital may be substituted for each other. A development that allows for the substitution of different forms of capital is called weakly sustainable. This article shows that in a risky world and a risk-averse society even under the assumptions of weak sustainability the circumstances under which different forms of capital may be substituted are limited

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Rong, Fumei, and Baochang Shi. "Incompressible lattice Boltzmann model for axisymmetric flows through porous media." International Journal of Modern Physics C 26, no. 04 (2015): 1550036. http://dx.doi.org/10.1142/s0129183115500369.

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In this paper, an axisymmetric LBE model for incompressible flows through porous media is proposed. In this model, the influence of density change caused by large pressure difference can be overcome by replacing density distribution function with pressure distribution function. A more simple processing format for external force is introduced so as to make the involved method in this paper more perfect. The coupling between flow velocity and pressure also can be significantly reduced when calculating the macroscopic quantities. Good agreement between the analytical solution and numerical result

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Wortley, Gary, Steven Leusner, Carolyn Good, Eric Gugger, and Raymond Glahn. "Iron availability of a fortified processed wheat cereal: a comparison of fourteen iron forms using an in vitro digestion/human colonic adenocarcinoma (CaCo-2) cell model." British Journal of Nutrition 93, no. 1 (2005): 65–71. http://dx.doi.org/10.1079/bjn20041294.

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In this three-phase study we first compared the availability of fourteen Fe forms in a wheat-based ready-to-eat breakfast cereal using an in vitro digestion/human colonic adenocarcinoma (CaCo-2) cell model. We then investigated the effect of milk and/or coffee on those fortified cereals found in phase 1 to show promising increases in Fe availability. The Fe forms assessed in phase 1 were reduced (control), carbonyl, electrolytic, FePO4, FeSO4, FeCO3, Na2FeEDTA, Ferrochel® (Albion Laboratories, Clearfield, UT, USA; ferrous bis-glycinate), encapsulated ferrous fumarate, FeSO4, ferrous lactate an

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Wang, Peng, Yifeng Zhong, Zheng Shi, Dan Luo, and Qingshan Yi. "Estimating of the Static and Dynamic Behaviors of Orthogrid-Stiffened FRP Panel Using Reduced-Order Plate Model." Materials 14, no. 17 (2021): 4908. http://dx.doi.org/10.3390/ma14174908.

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The orthogrid-stiffened FRP panel (OSFP) is a generic structural element in weight-sensitive structure applications. Based on the variational asymptotic method, a 2D reduced-order plate model (2D-RPM) of OSFP was constructed through matching the strain energy of the original panel for static and dynamic analyses. The local field distributions were recovered using the recovery relationship and global response. The relative influences of select parameters on the effective performance of the OSFP were revealed by parametric studies. The comparative results showed that the effective performance of

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Branlard, E., J. Jonkman, J. H. Porter, et al. "A generalized wind turbine cross section as a reduced-order model to gain insights in blade aeroelastic challenges." Journal of Physics: Conference Series 2767, no. 2 (2024): 022005. http://dx.doi.org/10.1088/1742-6596/2767/2/022005.

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Abstract In this work, we present an approach to study the aeroelastic stability of a wind turbine by focusing on the dynamics of a blade cross section. We present a methodology to obtain a reduced-order model of the blade dynamics in the form of generalized cross-sectional quantities that approximates the aerodynamic and structural properties of the full blade. The motivation for the work is to gain a physical understanding of the influence of aerodynamic models such as dynamic wake and dynamic stall on the frequency and damping of the structure using a reduced-order model with low computatio

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Hamlin, David, and Rolfe Leary. "Methods for using an integro-differential equation as a model of tree height growth." Canadian Journal of Forest Research 17, no. 5 (1987): 353–56. http://dx.doi.org/10.1139/x87-061.

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An integro-differential equation model of tree height growth is developed, together with a biological interpretation of its coefficients. The integro-differential equation is reduced to a second order linear differential equation with constraints on its initial conditions. Because of the constraints, fitting of the differential equation is best accomplished using a multipoint boundary value approach. An example using stem analysis data is presented. The model fit the data well and was montonically increasing with an upper asymptote, although several other curve forms are possible.

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Acotto, Francesca, and Ezio Venturino. "A Note on an Epidemic Model with Cautionary Response in the Presence of Asymptomatic Individuals." Axioms 12, no. 1 (2023): 62. http://dx.doi.org/10.3390/axioms12010062.

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We analyse a simple disease transmission model accounting for demographic features and an illness appearing in two forms, asymptomatic and symptomatic. Its main feature is the epidemic-induced fear of the population, for which contacts are reduced, responding to increasing symptomatic numbers. We find that in the presence of asymptomatic individuals, if the progression rate to symptomatic is high, protection measures may prevent the whole population becoming infected. The results also elucidate the importance of assessing transmission rates as quickly as possible.

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Shi, Ruijie, Leilei Chang, Wuyun Zhao, Fei Dai, and Zhenwei Liang. "Simulation of Flax Threshing Process by Different Forms of Threshing Drums in Combined Harvesting." Agronomy 15, no. 1 (2024): 36. https://doi.org/10.3390/agronomy15010036.

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Flax, an important oil and fiber crop, is widely cultivated in temperate and sub-frigid regions worldwide. China is one of the major producers of flax, with Gansu Province predominantly practicing cultivation in hilly areas. However, common issues such as feeding difficulties, stem entanglement, and low threshing efficiency significantly restrict the improvement of planting efficiency. This study addresses the key technical challenges in flax combine harvesting in hilly regions by developing a discrete element model of the flax plant and utilizing DEM-FEA co-simulation technology. The performa

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Meyer-Aurich, Andreas, and Yusuf Nadi Karatay. "Greenhouse Gas Mitigation Costs of Reduced Nitrogen Fertilizer." Agriculture 12, no. 9 (2022): 1438. http://dx.doi.org/10.3390/agriculture12091438.

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The reduction of nitrogen (N) fertilizer use is a possible greenhouse gas (GHG) mitigation option, whereas cost estimation highly depends on assumptions of the yield response function. This paper analyzes the potential and range of GHG mitigation costs with reduced N fertilizer application based on empirical yield response data for winter rye (Secale cereale L.) and rapeseed (Brassica napus L.) from field experiments from 2013 to 2020 in Brandenburg, Germany. The field experiments included four to five N rates as mineral fertilizer treatments. Three different functional forms (linear-plateau,

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Sklyarova, Ekaterina V., Yuri M. Nechepurenko, and Gennady A. Bocharov. "Numerical steady state analysis of the Marchuk–Petrov model of antiviral immune response." Russian Journal of Numerical Analysis and Mathematical Modelling 35, no. 2 (2020): 95–110. http://dx.doi.org/10.1515/rnam-2020-0008.

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Abstract The problem of guaranteed computation of all steady states of the Marchuk–Petrov model with fixed values of parameters and analysis of their stability are considered. It is shown that the system of ten nonlinear equations, nonnegative solutions of which are steady states, can be reduced to a system of two equations. The region of possible nonnegative solutions is analytically localized. An effective technology for computing all nonnegative solutions and analyzing their stability is proposed. The obtained results provide a computational basis for the study of chronic forms of viral inf

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Camacho, Jessica A., Bonnie Welch, Robert L. Sprando, and Piper R. Hunt. "Reproductive-Toxicity-Related Endpoints in C. elegans Are Consistent with Reduced Concern for Dimethylarsinic Acid Exposure Relative to Inorganic Arsenic." Journal of Developmental Biology 11, no. 2 (2023): 18. http://dx.doi.org/10.3390/jdb11020018.

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Exposures to arsenic and mercury are known to pose significant threats to human health; however, the effects specific to organic vs. inorganic forms are not fully understood. Caenorhabditis elegans’ (C. elegans) transparent cuticle, along with the conservation of key genetic pathways regulating developmental and reproductive toxicology (DART)-related processes such as germ stem cell renewal and differentiation, meiosis, and embryonic tissue differentiation and growth, support this model’s potential to address the need for quicker and more dependable testing methods for DART hazard identificati

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Vijayan, Murali, and P. Hemachandra Reddy. "Reduced VDAC1, Maintained Mitochondrial Dynamics and Enhanced Mitochondrial Biogenesis in a Transgenic Tau Mouse Model of Alzheimer’s Disease." International Journal of Molecular Sciences 23, no. 15 (2022): 8561. http://dx.doi.org/10.3390/ijms23158561.

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Alzheimer’s disease (AD) is one of the most common forms of neurodegeneration, defined by reduced cognitive function, which is caused by the gradual death of neurons in the brain. Recent studies have shown an age-dependent rise in the levels of voltage-dependent anion channel 1 (VDAC1) in AD. In addition, we discovered an aberrant interaction between VDAC1 and P-TAU in the brains of AD patients, which led to abnormalities in the structural and functional integrity of the mitochondria. The purpose of our study is to understand the protective effects of reduced VDAC1 against impaired mitochondri

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Du, Juan, Xiao-Peng Lei, Di-Fan Ren, Zai-Cheng Wang, and Yang Zhang. "Dynamic Response of Pile-Raft Systems with Various Forms of Connection under Cyclic Condition." Shock and Vibration 2023 (November 3, 2023): 1–12. http://dx.doi.org/10.1155/2023/3775654.

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This study aimed to examine the aseismic performance of the pile-raft systems with various connection forms. The related shaking table test and numerical simulation were performed for in-depth investigation. The acceleration response spectra on the top of the soil layer and raft were obtained and plotted for contrastive analysis based on the model test at a reduced scale of 1 : 30 and finite element numerical simulation. Accordingly, the working mechanisms of the pile-raft systems in conventional connections with the embedment of the compressible blocks and cushion layers under cyclic loading

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GUREVICH, OLGA, and SCOTT A. WATERMAN. "MAPPING VERBAL ARGUMENT PREFERENCES TO DEVERBAL NOUNS." International Journal of Semantic Computing 03, no. 04 (2009): 527–49. http://dx.doi.org/10.1142/s1793351x09000902.

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We describe an experiment mapping semantic role preferences for transitive verbs to their deverbal nominal forms. The preferences are learned by data mining large parsed corpora. Preferences are modeled for deverbal/argument pairs, falling back to a model for the deverbal only when sufficient data is not available. Errors in role assignment are reduced by 30–40%.

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Cormier, Kearsy, Adam C. Schembri, and Martha E. Tyrone. "One hand or two?" Sign Language and Linguistics 11, no. 1 (2008): 3–44. http://dx.doi.org/10.1075/sll.11.1.03cor.

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In this paper, we focus on the nativisation process as a fully fingerspelled word or fingerspelled letters become a fingerspelled loan or initialised sign. Previous models of nativisation (e.g., Brentari & Padden 2001) have described forms derived from one-handed fingerspelling systems; however, fingerspelling can be either one- or two-handed. Thus we propose an extension of Brentari & Padden’s model that accounts for varying degrees of nativisation based on the extent to which native parameters (i.e., native handshapes, movements, locations and native combinations of the three) exist

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Scarborough, Nelson, Brian Barnes, and Safdar Khan. "1078 Performance of Improved Forms of Demineralized Bone Fiber Allografts in Rabbit Posterolateral Spine Fusion Model." Neurosurgery 70, Supplement_1 (2024): 183–84. http://dx.doi.org/10.1227/neu.0000000000002809_1078.

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INTRODUCTION: Biologic fusion is often critical for successful spine procedures. Autograft remains the Gold Standard bone graft due to osteogenic properties but has limitations in practice. New bone graft forms that efficiently incorporate autograft or bone marrow aspirate (BMA) and provide osteoinductive and osteoconductive properties were evaluated in the current study. Grafts were made using demineralized bone fibers (DBF) produced by a patented method that provides long fibers that can effectively entangle autograft and be formed into open cylinders (PAK) that contain and prevent autograft

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Laudani, Antonino, Francesco Riganti Fulginei, and Alessandro Salvini. "High performing extraction procedure for the one-diode model of a photovoltaic panel from experimental I–V curves by using reduced forms." Solar Energy 103 (May 2014): 316–26. http://dx.doi.org/10.1016/j.solener.2014.02.014.

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Susantri, Ayu, Nurul Husna, and Buyung Buyung. "Students' Mathematic Problem Solving Ability with Problem Solving Learning Model in Class VII SMP Negeri 2 Singkawang." Jurnal Gantang 7, no. 2 (2023): 163–72. http://dx.doi.org/10.31629/jg.v7i2.4963.

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Students still need to improve their capacity for solving mathematical puzzles. The study aimed to evaluate how well the Problem-Solving learning model helped students become more adept at solving algebra-related mathematical problems. This study is an illustration of hybrid research (Mixed Methods). Class VIIA served as the experimental class, and Class VIID served as the control class for the study. Test forms, observation forms, and interviews served as instruments. Statistics are used in quantitative data analysis, whereas in qualitative data analysis, data is reduced, presented, and concl

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Литвиненко and E. Litvinenko. "Modulating Activity of the "Selenaza" in Various Doses to Conjugating System of No/Glutathione in the Ischemic Brain of Experimental Animals." Journal of New Medical Technologies 22, no. 1 (2015): 33–38. http://dx.doi.org/10.12737/9073.

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The authors have identified priority units – target neuroprotective therapy aimed at restoring the ratio NO/glutathione restored. For this purpose, animals with acute cerebral blood flow (stroke) were injected modulator selenium-dependent glutathione peroxidase medicament &#34;Selenaza&#34; in various doses. In the experiment, the authors used the model of bilateral occlusion of the common carotid arteries – by type of ischemic stroke to Wistar rats. It has been shown that the administration of different dosages &#34;Selenaza&#34; significantly reduces stress marker nitrosating

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