Results 81 to 90 of about 3,923,906 (342)
CVTresh: R Package for Level-Dependent Cross-Validation Thresholding [PDF]
The core of the wavelet approach to nonparametric regression is thresholding of wavelet coefficients. This paper reviews a cross-validation method for the selection of the thresholding value in wavelet shrinkage of Oh, Kim, and Lee (2006), and introduces
Donghoh Kim, Hee-Seok Oh
core +1 more source
Recursive Partitioning for Heterogeneous Causal Effects
, 2015 In this paper we study the problems of estimating heterogeneity in causal effects in experimental or observational studies and conducting inference about the magnitude of the differences in treatment effects across subsets of the population.
Athey, Susan, Imbens, Guido
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FEBS Letters, EarlyView.Bifidobacterium bifidum establishes symbiosis with infants by metabolizing lacto‐N‐biose I (LNB) from human milk oligosaccharides (HMOs). The extracellular multidomain enzyme LnbB drives this process, releasing LNB via its catalytic glycoside hydrolase family 20 (GH20) lacto‐N‐biosidase domain.
Xinzhe Zhang +5 more
wiley +1 more source
Biomolecules, 2019 Short chain fatty acids (SCFAs) are generated by the degradation and fermentation of complex carbohydrates, (i.e., dietary fiber) by the gut microbiota relevant for microbe–host communication.
Gerhard Liebisch +10 more
doaj +1 more source
The Caenorhabditis elegans DPF‐3 and human DPP4 have tripeptidyl peptidase activity
FEBS Letters, EarlyView.The dipeptidyl peptidase IV (DPPIV) family comprises serine proteases classically defined by their ability to remove dipeptides from the N‐termini of substrates, a feature that gave the family its name. Here, we report the discovery of a previously unrecognized tripeptidyl peptidase activity in DPPIV family members from two different species.
Aditya Trivedi, Rajani Kanth Gudipati
wiley +1 more source
Journal of Apicultural Science, 2013 A reverse-phase high-performance liquid chromatographic (RP -HPLC ) method was developed and validated for the analysis of honeybee venom samples and drug products containing honeybee venom.
Haghi Ghasem +2 more
doaj +1 more source
Construction and evaluation of classifiers for forensic document analysis
, 2011 In this study we illustrate a statistical approach to questioned document examination. Specifically, we consider the construction of three classifiers that predict the writer of a sample document based on categorical data.
Davis, Linda J. +4 more
core +1 more source
Molecular bases of circadian magnesium rhythms across eukaryotes
FEBS Letters, EarlyView.Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley +1 more source
Environmental Protection and Natural Resources, 2014 W artykule przedstawiono metodę doświadczalną szacowania niepewności wyniku pomiaru związanej z poborem i przygotowaniem próbek do badań w laboratorium chemicznym.
Giercuszkiewicz-Bajtlik Mieczysława +1 more
doaj +1 more source
Molecules, 2015 The antioxidant activity and chlorogenic acid and caffeic acid contents were investigated from different parts of Acanthopanax senticosus and A. koreanum.
Young-Hyun Kim +9 more
doaj +1 more source