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How to plan an experiment I. Randomization: current fad or (ever)lasting fashion?

open access: yesArchives of Medical Science, 2006
All those who like experimentation are sooner or later faced with a need of random selection of elements or objects of interest that they want to study (persons, patients, animals, cells, etc.).
Cezary Watała
doaj  

Preference for Randomization: Ambiguity Aversion and Inequality Aversion [PDF]

open access: yes
In Anscombe and Aumann’s (1963) domain, there are two types of mixtures. One is an ex–ante mixture, or a lottery on acts. The other is an ex–post mixture, or a state–wise mixture of acts.
Kaito Sato
core  

Random Walks in Random Environment [PDF]

open access: yesJournal of Physics A: Mathematical and General, 2006
Random walks in random environments (RWRE's) have been a source of surprising phenomena and challenging problems since they began to be studied in the 70's. Hitting times and, more recently, certain regeneration structures, have played a major role in our understanding of RWRE's. We review these and provide some hints on current research directions and
openaire   +3 more sources

Random Prism: An Alternative to Random Forests [PDF]

open access: yes, 2011
Ensemble learning techniques generate multiple classifiers, so called base classifiers, whose combined classification results are used in order to increase the overall classification accuracy. In most ensemble classifiers the base classifiers are based on the Top Down Induction of Decision Trees (TDIDT) approach.
Stahl, F., Bramer, Max
openaire   +3 more sources

From junk to function — How weak selection in eukaryotes builds new parts and drives genomic complexity

open access: yesFEBS Letters, EarlyView.
How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley   +1 more source

Analyzing Social Experiments as Implemented: A Reexamination of the Evidence From the HighScope Perry Preschool Program [PDF]

open access: yes
Social experiments are powerful sources of information about the effectiveness of interventions. In practice, initial randomization plans are almost always compromised. Multiple hypotheses are frequently tested.
Seong Hyeok Moon   +4 more
core   +4 more sources

On Nearly Balanced Designs for Sensory Trials [PDF]

open access: yes
In sensory experiments, often designs are used that are balanced for carryover effects. It is hoped that this controls for possible carryover effects, like, e.g., a lingering taste of the products. Proper randomization is essential to guarantee the usual
Kunert, Joachim, Sailer, Oliver
core  

Randomization in field experiments [PDF]

open access: yes, 2019
This chapter discusses several important topics related to randomization in field experiments. In the field, researchers face constraints in the design they can implement and/or the type of data that can be collected.
Peter, N.   +4 more
core   +1 more source

Randomization check for 100m.

open access: yes, 2022
Randomization check for 100m.
David Munro (6948437)
core   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

open access: yesFEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge   +6 more
wiley   +1 more source

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