Results 71 to 80 of about 5,219,358 (316)

Mathematical modeling for digestible energy in animal feeds for tilapia=Modelagem matemática para energia digestivel de ingredientes de origem animal para tilápias [PDF]

Acta Scientiarum: Animal Sciences, 2012
The objective of this study was to formulate a mathematical model to estimate digestible energy in animal feeds for tilapia. Literature results were used of the proximate composition of crude protein, ether extract, mineral matter and gross energy, as ...
Mariana Michelato, Tadeu Orlandi Xavier, Elias Nunes Martins, Wilson Massamitu Furuya, Luiz Vítor Oliveira Vidal, Thêmis Sakaguti Graciano   +5 more
doaj  

An Adaptive Management Model for Brown Bears in Hokkaido: Based on Total Population and the Number of Nuisance Bears

Population Ecology, EarlyView.
Bear management changes management actions according to the horizontal axis of the population size and the vertical axis of the number of nuisance bears. Aiming for the target population size of Ntar, Actions I and II protect the bears, and Action IV reduces the population.
Hiroyuki Matsuda, Akira Maki, Tsutomu Mano, Hifumi Tsuruga, Hino Takafumi, Shinichi Horino   +5 more
wiley   +1 more source

Linear Sigma Models With Strongly Coupled Phases -- One Parameter Models

, 2013
We systematically construct a class of two-dimensional $(2,2)$ supersymmetric gauged linear sigma models with phases in which a continuous subgroup of the gauge group is totally unbroken.
Hori, Kentaro, Knapp, Johanna
core   +1 more source

Speciation Through the Lens of Population Dynamics: A Theoretical Primer on How Small and Large Populations Diverge

Population Ecology, EarlyView.
Population size and dynamics fundamentally shape speciation by influencing genetic drift, founder events, and adaptive potential. Small populations may speciate rapidly due to stronger drift, whereas large populations harbor more genetic diversity, which can alter divergence trajectories. We highlight theoretical models that incorporate population size
Ryo Yamaguchi, Hidaka Kubo, Tokuya Ogawa, Hayate Omura   +3 more
wiley   +1 more source

Inbreeding depression in Holstein cattle in Brazil

Revista Brasileira de Zootecnia
The objective of this study was to evaluate inbreeding depression in Holstein cows in Brazil, considering their 305-day milk production (MP), age of first calving (AFC), and calving interval (CI).
Mário Henrique Magalhães Araújo da Silva, Carlos Henrique Mendes Malhado, Elisandra Lurdes Kern, Darlene dos Santos Daltro, Jaime Araujo Cobuci, Paulo Luiz Souza Carneiro   +5 more
doaj   +1 more source

Revisiting the Dissimilarity Representation in the Context of Regression

IEEE Access, 2021
In machine learning, a natural way to represent an instance is by using a feature vector. However, several studies have shown that this representation may not accurately characterize an object.
Vicente Garcia, J. Salvador Sanchez, Rafael Martinez-Pelaez, Luis C. Mendez-Gonzalez   +3 more
doaj   +1 more source

LINEAR URBAN MODELS

Papers in Regional Science, 1983
A class of linear models is developed in which activities are derived from transformations of each other and exogenous activities. The models are illustrated using spatial distributions of population and employment. Reduced forms are derived and the influence of different transformations on spatial model solutions is explored in terms of the balance of
openaire   +2 more sources

Chiral non-linear sigma-models as models for topological superconductivity

, 2000
We study the mechanism of topological superconductivity in a hierarchical chain of chiral non-linear sigma-models (models of current algebra) in one, two, and three spatial dimensions. The models have roots in the 1D Peierls-Frohlich model and illustrate
A. Fetter, A. G. Abanov, A. G. Abanov, A. G. Abanov, A. G. Abanov, A. J. Heeger, A. M. J. Schakel, A. M. Polyakov, D. Loss, D. Senechal, G. Fröhlich, I. Affleck, J. Goldstone, L. Pontrjagin, N. Dorey, P. A. Lee, P. B. Wiegmann, P. B. Wiegmann, P. B. Wiegmann, P. Wiegmann, R. B. Laughlin, S. B. Treiman, T. Jaroszewicz, T. Jaroszewicz, X.-G. Wen, Y-H. Chen   +25 more
core   +1 more source

FoxO1 signaling in B cell malignancies and its therapeutic targeting

FEBS Letters, EarlyView.
FoxO1 has context‐specific tumor suppressor or oncogenic character in myeloid and B cell malignancies. This includes tumor‐promoting properties such as stemness maintenance and DNA damage tolerance in acute leukemias, or regulation of cell proliferation and survival, or migration in mature B cell malignancies.
Krystof Hlavac, Petra Pavelkova, Laura Ondrisova, Marek Mraz   +3 more
wiley   +1 more source

Generalisierte lineare Modelle

, 2007
Lineare Modelle eignen sich besonders fur Regressionsanalysen, bei denen die Zielvariable stetig ist und – moglicherweise nach einer geeigneten Transformation – zumindest approximativ durch eine Normalverteilung modelliert werden kann. Zusatzlich muss sich der Erwartungswert der Zielvariablen durch eine Linearkombination von – moglicherweise ebenfalls ...
Fahrmeir, Ludwig, Kneib, Thomas, Lang, Stefan   +2 more
openaire   +4 more sources