Results 41 to 50 of about 3,089,076 (340)

The Marine-Derived Fungus Clonostachys rosea, Source of a Rare Conjugated 4-Me-6E,8E-hexadecadienoic Acid Reducing Viability of MCF-7 Breast Cancer Cells and Gene Expression of Lipogenic Enzymes

open access: yesMarine Drugs, 2015
A marine-derived strain of Clonostachys rosea isolated from sediments of the river Loire estuary (France) was investigated for its high lipid production. The fungal strain was grown on six different culture media to explore lipid production changes.
Ana Camila Dos Santos Dias   +8 more
doaj   +1 more source

Experimental and Numerical Investigation of an Overheated Aluminum Droplet Wetting a Zinc-Coated Steel Surface

open access: yesMetals, 2017
Wetting steel surfaces with liquid aluminum without the use of flux can be enabled by the presence of a zinc-coating. The mechanisms behind this effect are not yet fully understood.
Marius Gatzen   +4 more
doaj   +1 more source

Mechanical Properties of High Strength Aluminum Alloy EN AW-7075 Additively Manufactured by Directed Energy Deposition

open access: yesMetals, 2020
A manifold variety of additive manufacturing techniques has a significant positive impact on many industry sectors. Large components are often manufactured via directed energy deposition (DED) instead of using powder bed fusion processes (PBF).
Anika Langebeck   +3 more
doaj   +1 more source

Dry metal forming of high alloy steel using laser generated aluminum bronze tools

open access: yesMATEC Web of Conferences, 2015
Regarding the optimization of forming technology in economic and environmental aspects, avoiding lubricants is an approach to realize the vision of a new green technology. The resulting direct contact between the tool and the sheet in non-lubricated deep
Freiße Hannes   +3 more
doaj   +1 more source

N4ITK: Improved N3 Bias Correction

open access: yesIEEE Transactions on Medical Imaging, 2010
A variant of the popular nonparametric nonuniform intensity normalization (N3) algorithm is proposed for bias field correction. Given the superb performance of N3 and its public availability, it has been the subject of several evaluation studies.
N. Tustison   +6 more
semanticscholar   +1 more source

Reconciling modern machine-learning practice and the classical bias–variance trade-off [PDF]

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2018
Significance While breakthroughs in machine learning and artificial intelligence are changing society, our fundamental understanding has lagged behind. It is traditionally believed that fitting models to the training data exactly is to be avoided as it ...
M. Belkin   +3 more
semanticscholar   +1 more source

A comparison of normalization methods for high density oligonucleotide array data based on variance and bias

open access: yesBioinform., 2003
MOTIVATION When running experiments that involve multiple high density oligonucleotide arrays, it is important to remove sources of variation between arrays of non-biological origin. Normalization is a process for reducing this variation. It is common to
B. Bolstad   +3 more
semanticscholar   +1 more source

Analysis of compositions of microbiomes with bias correction

open access: yesNature Communications, 2020
Differential abundance (DA) analysis of microbiome data continues to be a challenging problem due to the complexity of the data. In this article we define the notion of “sampling fraction” and demonstrate a major hurdle in performing DA analysis of ...
Huang Lin, S. Peddada
semanticscholar   +1 more source

The Bias in researching cognitive bias [PDF]

open access: yesAdvances in Health Sciences Education, 2014
The two problems are mathematically and formally equivalent. As Daniel Kahneman, the Nobel prize winning psychologist explains in his book, Thinking Fast and Slow (2012), if the probability of being a bank teller/having a pneumothorax is p(A), and the probability of being a feminist/having a ruptured spleen is p(B), then the probability of having both ...
openaire   +3 more sources

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