Results 21 to 30 of about 5,213,227 (370)

The Influence of Matrix Size on Statistical Properties of Co-Occurrence and Limiting Similarity Null Models. [PDF]

open access: yesPLoS ONE, 2016
Null models exploring species co-occurrence and trait-based limiting similarity are increasingly used to explore the influence of competition on community assembly; however, assessments of common models have not thoroughly explored the influence of ...
Thomas Michael Lavender   +2 more
doaj   +1 more source

Liberal vs. restricted opioid prescribing following midurethral sling dataset

open access: yesData in Brief, 2023
Postoperative opioid prescribing has historically lacked information critical to balancing the pain control needs of the individual patient with our professional responsibility to judiciously prescribe these high-risk medications.
Brianne M. Morgan   +6 more
doaj   +1 more source

Small samples and increased variability – discussing the need for restricted types of randomization in exercise interventions in old age

open access: yesEuropean Review of Aging and Physical Activity, 2019
BackgroundRandomization provides an equal chance for participants to be allocated to intervention groups, in order to create an equal distribution of all variables at baseline in all groups. However, this is not guaranteed, particularly if the groups are
Y. Netz, R. Lidor, G. Ziv
semanticscholar   +1 more source

Restricted Isometry Property of Random Subdictionaries [PDF]

open access: yesIEEE Transactions on Information Theory, 2015
We study statistical restricted isometry, a property closely related to sparse signal recovery, of deterministic sensing matrices of size $m \times N$. A matrix is said to have a statistical restricted isometry property (StRIP) of order $k$ if most submatrices with $k$ columns define a near-isometric map of ${\mathbb R}^k$ into ${\mathbb R}^m$.
Barg, Alexander   +2 more
openaire   +2 more sources

Calorie Restriction with or without Time-Restricted Eating in Weight Loss.

open access: yesNew England Journal of Medicine, 2022
BACKGROUND The long-term efficacy and safety of time-restricted eating for weight loss are not clear. METHODS We randomly assigned 139 patients with obesity to time-restricted eating (eating only between 8:00 a.m.
Deying Liu   +15 more
semanticscholar   +1 more source

Randomization techniques in protocols for cluster randomized trials [PDF]

open access: yesPraxis Medica, 2017
Planning cluster randomized studies requires special attention due to their specific design. To achieve balance on a cluster level as well as on individual level, it is necessary to apply randomization techniques which involve restricted randomization ...
Kostić Mirjana   +5 more
doaj  

Bayesian dose selection design for a binary outcome using restricted response adaptive randomization

open access: yesTrials, 2017
Background In phase II trials, the most efficacious dose is usually not known. Moreover, given limited resources, it is difficult to robustly identify a dose while also testing for a signal of efficacy that would support a phase III trial. Recent designs
Caitlyn Meinzer   +2 more
doaj   +1 more source

Systolic blood pressure reduction during the first 24 h in acute heart failure admission: friend or foe? [PDF]

open access: yes, 2018
Aims: Changes in systolic blood pressure (SBP) during an admission for acute heart failure (AHF), especially those leading to hypotension, have been suggested to increase the risk for adverse outcomes.
Bourge, Robert C.   +16 more
core   +3 more sources

Run-Reversal Equilibrium for Clinical Trial Randomization.

open access: yesPLoS ONE, 2015
In this paper, we describe a new restricted randomization method called run-reversal equilibrium (RRE), which is a Nash equilibrium of a game where (1) the clinical trial statistician chooses a sequence of medical treatments, and (2) clinical ...
William C Grant
doaj   +1 more source

Restricted Structural Random Matrix for compressive sensing [PDF]

open access: yesSignal Processing: Image Communication, 2021
Compressive sensing (CS) is well-known for its unique functionalities of sensing, compressing, and security (i.e. CS measurements are equally important). However, there is a tradeoff. Improving sensing and compressing efficiency with prior signal information tends to favor particular measurements, thus decrease the security.
Canh, Thuong Nguyen, Jeon, Byeungwoo
openaire   +2 more sources

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