Results 71 to 80 of about 24,840,318 (307)

Identification of exchange rate shocks with compositional data and written press

Finance, Markets and Valuation, 2020
The evolution of exchange rates results from events that affect different countries differently, that is, asymmetric shocks. Being value ratios, exchange rates constitute what is known as compositional data.
Gámez Velázquez, Daniel, Coenders, Germà   +1 more
doaj   +1 more source

Air quality index revisited from a compositional point of view [PDF]

, 2016
The final publication is available at Springer via http://dx.doi.org/10.1007/s11004-015-9599-5The so-called Air Quality Index (AQI), expresses the quality of atmospheric air.
Hervada Sala, Carme, Jarauta Bragulat, Eusebio, Egozcue Rubí, Juan José   +2 more
core   +1 more source

Partial depletion of plasminogen activator inhibitor‐1 decreases subcutaneous fat cell hypertrophy and liver cholesterol in high‐fat‐fed female mice

FEBS Letters, EarlyView.
Obesity raises blood levels of PAI‐1, a protein linked to metabolic dysfunction‐associated steatotic liver disease in people with obesity. In female mice fed a high‐fat diet, partially lowering PAI‐1 led to smaller subcutaneous fat cells and lower liver cholesterol, without changing body weight or insulin sensitivity.
Claudia E. Ramirez Bustamante, Robert Sharp, Pradip K. Saha, Elizabeth S. Anaya, Elizabeth L. Lieu, Evelyn L. de Groot, Pooja Patel, Mi Jeong Heo, Aaron R. Cox, Kang Ho Kim, Sean M. Hartig   +10 more
wiley   +1 more source

Imputation for geochemistry: log-transform analysis of highly incomplete compositional data

Frontiers in Earth Science
Incompleteness and lack of precision are common problems with geochemical data, limiting the data analysis methods that can be reliably applied and what subsets of data can be used.
Gerhard Visser, Rebbeca M. Montsion
doaj   +1 more source

Ligand‐dependent transcriptional heterogeneity in cell cycle gene expression delays G1/S entry

FEBS Letters, EarlyView.
EGF and HRG induce distinct G1/S progression programs in ErbB2‐amplified BT474 breast cancer cells. Despite activating the potent ErbB2–ErbB3 heterodimer, HRG does not accelerate cell‐cycle entry. Instead, EGF promotes earlier restriction‐point passage via ERK–FOS signaling, whereas HRG activates the AKT–MYC axis, driving transcriptional heterogeneity ...
Ririn Rahmala Febri, Ayaka Nagasato‐Ichikawa, Keita Iida, Shuhei Kimura, Akira Imamoto, Mariko Okada   +5 more
wiley   +1 more source

Curvature Templates in Clinical Information Geometry: Fisher Manifolds, Relational Embeddings, and Worked Examples

Entropy
Clinical prediction models commonly represent patients as points in high-dimensional feature spaces, but they rarely examine the information geometry generated by the statistical organization of clinical states.
Dragoş Petru Teodor Iancu, Călin Gheorghe Buzea, Florin Nedeff, Diana Mirilă, Valentin Nedeff, Mirela Panainte-Lehaduș, Claudia Manuela Tomozei, Maricel Agop, Pintilie Tudor Florin, Roxana Irina Iancu, Lăcrămioara Ochiuz, Decebal Vasincu   +11 more
doaj   +1 more source

The Statistical Analysis of Compositional Data

Journal of the Royal Statistical Society Series B: Statistical Methodology, 1982
Summary The simplex plays an important role as sample space in many practical situations where compositional data, in the form of proportions of some whole, require interpretation. It is argued that the statistical analysis of such data has proved difficult because of a lack both of concepts of independence and of rich enough ...
openaire   +2 more sources

Synergistic perspectives—How single‐molecule biophysics complement biochemical understanding

FEBS Letters, EarlyView.
In this review, we discuss how ensemble biochemistry and single‐molecule approaches are complementary, outline commonly used single‐molecule techniques, and illustrate their relevance through two representative case studies: chromatin organization by SMC complexes and pathway choice during DNA double‐strand break repair.
Sara De Bragança, Eline L. Jansen, Jorine M. Eeftens   +2 more
wiley   +1 more source

Biplots of compositional data [PDF]

The singular value decomposition and its interpretation as a linear biplot has proved to be a powerful tool for analysing many forms of multivariate data. Here we adapt biplot methodology to the speciffic case of compositional data consisting of positive
J. Aitchison, Michael Greenacre
core  

Data for: Economic analysis of forest management alternatives: Compositional objectives, rotation ages, and harvest methods in boreal forests

, 2017
Data of economic analysis of forest management alternatives: Compositional objectives, rotation ages, and harvest methods in boreal ...
Chen, S (via Mendeley Data), Chen, Si
core   +1 more source