Results 51 to 60 of about 4,525,334 (379)
A selected history of expectation bias in physics [PDF]
Am. J. Phys. 74, 578 (2006)., 2005 The beliefs of physicists can bias their results towards their expectations in a number of ways. We survey a variety of historical cases of expectation bias in observations, experiments, and calculations.
arxiv +1 more source
Wage Comparisons -A Selectivity Bias [PDF]
Journal of Political Economy, 1973 The economics of information have been established by now as an integral part of economic analysis. However, surprisingly little has been written on the implications of search (and in particular, job search) for the estimation of the wage function and its ramifications in such cases as the estimation of the determinants of labor force participation ...
openaire +2 more sources
Insights into PI3K/AKT signaling in B cell development and chronic lymphocytic leukemia
FEBS Letters, EarlyView.This Review explores how the phosphoinositide 3‐kinase and protein kinase B pathway shapes B cell development and drives chronic lymphocytic leukemia, a common blood cancer. It examines how signaling levels affect disease progression, addresses treatment challenges, and introduces novel experimental strategies to improve therapies and patient outcomes.
Maike Buchner
wiley +1 more source
Reducing Self-Selection Bias in Feeder Cattle Premium Estimates Using Matched Sampling
Journal of Agricultural and Resource Economics, 2014 Past value-added research employs hedonic pricing models to estimate premiums associated with value-added feeder cattle characteristics. However, hedonic pricing models require restrictive assumptions and impose a functional form.
Brian R. Williams +3 more
doaj +1 more source
Selection-Bias-Corrected Visualization via Dynamic Reweighting [PDF]
, 2020 The collection and visual analysis of large-scale data from complex systems, such as electronic health records or clickstream data, has become increasingly common across a wide range of industries. This type of retrospective visual analysis, however, is prone to a variety of selection bias effects, especially for high-dimensional data where only a ...
arxiv +1 more source
Characterizing Selection Bias Using Experimental Data
, 1998 This paper develops and applies semiparametric econometric methods to estimate the form of selection bias that arises from using nonexperimental comparison groups to evaluate social programs and to test the identifying assumptions that justify three ...
J. Heckman +3 more
semanticscholar +1 more source
Unraveling Mycobacterium tuberculosis acid resistance and pH homeostasis mechanisms
FEBS Letters, EarlyView.Mycobacterium tuberculosis exhibits a remarkable resilience to acid stress. In this Review, we discuss some of the molecular mechanisms and metabolic pathways used by the tubercle bacilli to adapt and resist host‐mediated acid stress. Mycobacterium tuberculosis (Mtb) is a successful pathogen that has developed a variety of strategies to survive and ...
Janïs Laudouze +3 more
wiley +1 more source
Differential loss of participants does not necessarily cause selection bias
Australian and New Zealand Journal of Public Health, 2012 Background: Most research is affected by differential participation, where individuals who do not participate have different characteristics to those who do. This is often assumed to induce selection bias.
Kristie N. Carter +3 more
doaj +1 more source
Apuntes del CENES, 2014 This paper assesses the effects of occupational segregation on the gender wage gap in urban Colombia between 1986 and 2000. The empirical methodology involves a two step procedure where by the occupational distributions ofworkers by gender aremodelled ...
Jairo Guillermo Isaza Castro
doaj +1 more source
Bone & Joint Open, 2023 Aims: Early large treatment effects can arise in small studies, which lessen as more data accumulate. This study aimed to retrospectively examine whether early treatment effects occurred for two multicentre orthopaedic randomized controlled trials (RCTs)
Catherine N. Knowlson +4 more
doaj +1 more source