Results 91 to 100 of about 924,200 (348)

Factors for increasing positive predictive value of pneumothorax detection on chest radiographs using artificial intelligence

open access: yesScientific Reports
This study evaluated the positive predictive value (PPV) of artificial intelligence (AI) in detecting pneumothorax on chest radiographs (CXRs) and its affecting factors.
Seungsoo Lee   +5 more
doaj   +1 more source

Patients who take their symptoms less seriously are more likely to have colorectal cancer

open access: yesBMC Gastroenterology, 2012
Background People vary in how they respond to symptoms. The purpose of this study was to assess whether serious disease is more likely to be present in patients who report that they take any symptoms less seriously than other people do, and to assess the
Adelstein Barbara-Ann   +3 more
doaj   +1 more source

The predictive value of ovarian reserve tests for miscarriage in a population of subfertile ovulatory women [PDF]

open access: yes, 2008
BACKGROUND: The increase in miscarriage rate with female age is attributed to a decline in oocyte quality. This age-related decrease of oocyte quality is accompanied by a decrease in oocyte quantity. Assessment of the number of oocytes by ovarian reserve
Broekmans, F. J. M.   +18 more
core   +1 more source

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

open access: yesFEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure   +3 more
wiley   +1 more source

Pseudo Market Timing and Predictive Regressions [PDF]

open access: yes
A number of studies claim that aggregate managerial decision variables, such as aggregate equity issuance, have power to predict stock or bond market returns.
Ryan Taliaferro   +2 more
core  

Predictive Value of Skeletal Muscle Function Test Combined with Climbing Test for Postoperative Cardiopulmonary Complications in Patients with COPD and Concurrent Lung Cancer

open access: yes, 2023
Zemin He,1 Hong Li,1 Boxiong Cao,1 Ziliang Zan,1 Hao Feng,1 Qiang Wei,1 Keting Liu2 1Department of Thoracic Surgery, The First People’s Hospital of Shuangliu District (West China Airport Hospital of Sichuan University), Chendu, Sichuan Province, People’s
Zan Z   +6 more
core  

An unexpected alternative viologen electron mediator site in tungsten‐containing formate dehydrogenase

open access: yesFEBS Letters, EarlyView.
An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley   +1 more source

Comparing univariate and multivariate models to forecast portfolio value-at-risk [PDF]

open access: yes
This article addresses the problem of forecasting portfolio value-at-risk (VaR) with multivariate GARCH models vis-à-vis univariate models. Existing literature has tried to answer this question by analyzing only small portfolios and using a testing ...
Andre A. P.   +2 more
core  

Executive functioning as a predictive measure of offending behaviour [PDF]

open access: yes, 2019
Purpose – Prosociality is considered important in the study of offenders and associated cognitive skills: theory of mind, empathic understanding and moral reasoning, are said to enable self-control and reduce the risk of offending behaviours.
Betts, Lucy   +7 more
core   +1 more source

Prognostic value of coagulation tests for in-hospital mortality in patients with traumatic brain injury

open access: yesScandinavian Journal of Trauma, Resuscitation and Emergency Medicine, 2018
BackgroundCoagulopathy is commonly observed after traumatic brain injury (TBI). However, it is not known whether using the standard independent predictors in conjunction with coagulation tests would improve their prognostic value.
Q. Yuan   +7 more
semanticscholar   +1 more source

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