Results 21 to 30 of about 501,153 (319)

Designing Experiments that Contr ol for Spatial and Temporal Variation [PDF]

open access: yesMongolian Journal of Biological Sciences, 2003
Spatial and temporal variation can cause problems in designing and conducting experiments. An introduction to methods for controlling spatial and temporal variation in ecological experiments is provided in this article.
Peter Petraitis
doaj   +1 more source

Optimal block designs for experiments on networks [PDF]

open access: yesJournal of the Royal Statistical Society: Series C (Applied Statistics), 2019
We propose a method for constructing optimal block designs for experiments on networks. The response model for a given network interference structure extends the linear network effects model to incorporate blocks.
Vasiliki Koutra   +2 more
semanticscholar   +1 more source

Recommendable block sizes: a case study on Finnish official variety trials of barley cultivars [PDF]

open access: yes, 2008
Well-established results in the current statistical literature imply that plant breeders should use incomplete block designs wherever spatial variability exists and the number of treatments is large.
Jauhiainen, Lauri   +2 more
core   +3 more sources

A Statistical Model for the 2-Part Balanced Incomplete Block Design

open access: yesUMYU Scientifica, 2023
Multi-part Balanced Incomplete Block Designs combine many orthogonal balanced incomplete block designs in the same block. The design has been used to study cancer trials with medical centres as blocks. Various design layouts have been constructed for a restricted number of cancer types and drugs.
Naziru Isah Muhammad   +2 more
openaire   +1 more source

Minimum aberration designs for discrete choice experiments [PDF]

open access: yes, 2017
A discrete choice experiment (DCE) is a survey method that givesinsight into individual preferences for particular attributes.Traditionally, methods for constructing DCEs focus on identifyingthe individual effect of each attribute (a main effect ...
Jaynes, Jessica   +2 more
core   +1 more source

Comparison Between some Methods of Tackling the Lack of Experimental Units Needed for Application of Factorial Experiments [PDF]

open access: yesالمجلة العراقية للعلوم الاحصائية, 2011
Most of the time the researcher confronts a decrease in the experimental units required when applying a certain design, this problem appears especially when conducting the factorial experiments which mostly need great numbers of experimental units, to ...
doaj   +1 more source

Comparison of efficacy of fascia iliaca compartment block using ropivacaine versus ropivacaine with dexmedetomidine versus ropivacaine with dexamethasone for acute pain relief in patients with femoral fractures: A prospective randomized controlled study

open access: yesIndian Journal of Pain, 2022
Context: Landmark-guided fascia iliaca compartment block (FICB) has been used in operation theater to facilitate patient position before administration of subarachnoid block, but its utilization is yet to be explored in the accident and emergency ...
Kishore Kumar Arora   +2 more
doaj   +1 more source

Multi-part balanced incomplete-block designs [PDF]

open access: yesStatistical Papers, 2018
We consider designs for cancer trials which allow each medical centre to treat only a limited number of cancer types with only a limited number of drugs. We specify desirable properties of these designs, and prove some consequences.
R. A. Bailey, P. Cameron
semanticscholar   +1 more source

Comparison of clonidine versus fentanyl as an adjuvant to intrathecal ropivacaine for major lower limb surgeries: A randomized double-blind prospective study

open access: yesIndian Journal of Pain, 2013
Background: Ropivacaine is a newer local anesthetic, proven to have a better safety margin than bupivacaine and lignocaine. While maintaining this advantage and improving the intraoperative quality of anesthesia, the use of analgesic adjuvants has been ...
Anita R Chhabra   +2 more
doaj   +1 more source

META-R: A software to analyze data from multi-environment plant breeding trials

open access: yesCrop Journal, 2020
META-R (multi-environment trial analysis in R) is a suite of R scripts linked by a graphical user interface (GUI) designed in Java language. The objective of META-R is to accurately analyze multi-environment plant breeding trials (METs) by fitting mixed ...
Gregorio Alvarado   +7 more
doaj   +1 more source

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