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Fastest quotient iteration with variational principles for self-adjoint eigenvalue problems

Autor: Huhtanen, Marko, Kotila, Vesa, Uusitalo, Pauliina

For the generalized eigenvalue problem, a quotient function is devised for estimating eigenvalues in terms of an approximate eigenvector. This gives rise to an infinite family of quotients, all entirely arguable to be used in estimation. Although the

Externí odkaz: http://arxiv.org/abs/2409.14790

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Akademický článek

Predicting CO2 production of lactating dairy cows from animal, dietary, and production traits using an international dataset

Publikováno v: Journal of Dairy Science, Vol 107, Iss 9, Pp 6771-6784 (2024)

ABSTRACT: Automated measurements of the ratio of concentrations of methane and carbon dioxide, [CH4]:[CO2], in breath from individual animals (the so-called “sniffer technique”) and estimated CO2 production can be used to estimate CH4 production,

Externí odkaz: https://doaj.org/article/b677e8fd9f844de79d163cdb6a2a3c41

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Akademický článek

Maximal mouth opening is a simple method to evaluate the treatment outcome of temporomandibular joint arthritis in patients with juvenile idiopathic arthritis

Autor: Mia Huhtanen, Katriina Mikola, Anu Kiukkonen, Tuula Palotie

Publikováno v: Acta Odontologica Scandinavica, Vol 83, Iss 1 (2024)

Objective: Temporomandibular joint (TMJ) arthritis is a common finding in juvenile idiopathic arthritis (JIA) patients. TMJ arthritis can cause significant disturbances in TMJ function and growth without treatment. Our aim was to evaluate the effecti

Externí odkaz: https://doaj.org/article/6f46d3ac2a5740ccb651a16da2f26ab9

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Gradients of Quotients and Eigenvalue Problems

Autor: Huhtanen, Marko, Nevanlinna, Olavi

Intertwining analysis, algebra, numerical analysis and optimization, computing conjugate co-gradients of real-valued quotients gives rise to eigenvalue problems. In the linear Hermitian case, by inspecting optimal quotients in terms of taking the con

Externí odkaz: http://arxiv.org/abs/2211.06051

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Akademický článek

Effects of replacement of barley with oats on milk fatty acid composition in dairy cows fed grass silage-based diets

Autor: P. Fant, H. Leskinen, M. Ramin, P. Huhtanen

Publikováno v: Journal of Dairy Science, Vol 106, Iss 4, Pp 2347-2360 (2023)

ABSTRACT: This study consists of milk fatty acid (FA) data collected during 2 in vivo experiments. For this study, 8 cows from each experiment were included in a replicated 4 × 4 Latin square design. At the start of experiment 1 (Exp1) cows were at

Externí odkaz: https://doaj.org/article/95dc175ee22445ef9277e9e409ac69e8

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Akademický článek

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Akademický článek

Effects of ruminal protozoa on methane emissions in ruminants—A meta-analysis

Autor: X. Dai, K.F. Kalscheur, P. Huhtanen, A.P. Faciola

Publikováno v: Journal of Dairy Science, Vol 105, Iss 9, Pp 7482-7491 (2022)

ABSTRACT: The effects of different ruminal protozoa (RP) on CH4 emissions from ruminants were evaluated in a meta-analysis, using 64 publications reporting data from 79 in vivo experiments. Experiments included in the database reported CH4 emissions

Externí odkaz: https://doaj.org/article/e126354bf0c14ff0ba12710be1397a9b

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Akademický článek

Prediction of nitrogen excretion from data on dairy cows fed a wide range of diets compiled in an intercontinental database: A meta-analysis

Publikováno v: Journal of Dairy Science, Vol 105, Iss 9, Pp 7462-7481 (2022)

ABSTRACT: Manure nitrogen (N) from cattle contributes to nitrous oxide and ammonia emissions and nitrate leaching. Measurement of manure N outputs on dairy farms is laborious, expensive, and impractical at large scales; therefore, models are needed t

Externí odkaz: https://doaj.org/article/c17cdb1b42b84dd1bf9e566a6fa24802

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Akademický článek

Community incidence patterns drive the risk of SARS-CoV-2 outbreaks and alter intervention impacts in a high-risk institutional setting

Autor: Sean M. Moore, Guido España, T. Alex Perkins, Robert M. Guido, Joaquin B. Jucaban, Tara L. Hall, Mark E. Huhtanen, Sheila A. Peel, Kayvon Modjarrad, Shilpa Hakre, Paul T. Scott

Publikováno v: Epidemics, Vol 43, Iss , Pp 100691- (2023)

Optimization of control measures for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in high-risk institutional settings (e.g., prisons, nursing homes, or military bases) depends on how transmission dynamics in the broader community infl

Externí odkaz: https://doaj.org/article/becd9571019b416199d662187985956a

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