Results 51 to 60 of about 645,422 (275)

Optimal Imputation Methods under Stratified Ranked Set Sampling

open access: yesRevstat Statistical Journal
It is long familiar that the stratified ranked set sampling (SRSS) is more efficient than ranked set sampling (RSS) and stratified random sampling (StRS). The existence of missing values alter the final inference of any study.
Shashi Bhushan , Anoop Kumar
doaj   +1 more source

Intraoperative Collection of Ascitic Fluid With Intra‐ or Postoperative Reinfusion in Ovarian Cancer: Safety and Feasibility of a Roller Pumping Method

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Patients with ovarian cancer often present with massive ascites, leading to significant protein loss during surgical procedures. Although cell‐free concentrated ascites reinfusion therapy (CART) is used in palliative settings to mitigate protein loss, its application in intraoperative settings remains unexplored.
Yutaka Yoneoka   +7 more
wiley   +1 more source

Novel imputation methods under stratified simple random sampling

open access: yesAlexandria Engineering Journal
This paper addresses some classes of combined and separate imputation methods (CSIMs) of the population mean under stratified simple random sampling (SSRS) along with their characteristics.
Anoop Kumar   +5 more
doaj   +1 more source

Approximation with Error Bounds in Spark

open access: yes, 2018
We introduce a sampling framework to support approximate computing with estimated error bounds in Spark. Our framework allows sampling to be performed at the beginning of a sequence of multiple transformations ending in an aggregation operation.
Hu, Guangyan   +3 more
core   +1 more source

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Study on a Stratified Sampling Investigation Method for Resident Travel and the Sampling Rate

open access: yesDiscrete Dynamics in Nature and Society, 2015
This text first dissected the relationship between average travel frequency, trip mode structure, and the characteristics of residential areas. The results showed that conducting a stratified resident travel investigation in accordance with the ...
Fei Shi
doaj   +1 more source

Multiple ETS family transcription factors bind mutant p53 via distinct interaction regions

open access: yesFEBS Letters, EarlyView.
Mutant p53 gain‐of‐function is thought to be mediated by interaction with other transcription factors. We identify multiple ETS transcription factors that can bind mutant p53 and found that this interaction can be promoted by a PXXPP motif. ETS proteins that strongly bound mutant p53 were upregulated in ovarian cancer compared to ETS proteins that ...
Stephanie A. Metcalf   +6 more
wiley   +1 more source

Stratification in Business and Agriculture Surveys with R [PDF]

open access: yesRevista Română de Statistică, 2016
Usually sample surveys on enterprises and farms adopt a one stage stratified sampling design. In practice the sampling frame is divided in non-overlapping strata and simple random sampling is carried out independently in each stratum.
Marco Ballin   +3 more
doaj  

A Sample-Based Forest Monitoring Strategy Using Landsat, AVHRR and MODIS Data to Estimate Gross Forest Cover Loss in Malaysia between 1990 and 2005

open access: yesRemote Sensing, 2013
Insular Southeast Asia is a hotspot of humid tropical forest cover loss. A sample-based monitoring approach quantifying forest cover loss from Landsat imagery was implemented to estimate gross forest cover loss for two eras, 1990–2000 and 2000–2005.
Peter Potapov   +3 more
doaj   +1 more source

Application of AHP and a mathematical index to estimate livability in tourist districts: The case of Al Qasba in Sharjah

open access: yesFrontiers of Architectural Research, 2020
Urban planners must ensure that urban public spaces are enjoyable to use to create a lively city that expresses their culture and traditions and welcomes social diversity. This study aims to develop a theoretical index for assessing the livability levels
Emad Mushtaha   +5 more
doaj   +1 more source

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