Results 31 to 40 of about 81,829 (321)

Matching Methods for Causal Inference: A Review and a Look Forward [PDF]

, 2009
When estimating causal effects using observational data, it is desirable to replicate a randomized experiment as closely as possible by obtaining treated and control groups with similar covariate distributions. This goal can often be achieved by choosing
Bloomberg School, Elizabeth A. Stuart, Johns Hopkins, Public Health   +3 more
core   +3 more sources

CALIPER Hematology Reference Standards (I) [PDF]

American Journal of Clinical Pathology, 2020
Abstract Objectives Accurate hematologic test interpretation based on normative reference standards is critical to ensure appropriate clinical decision making. However, healthy pediatric reference data for most hematology parameters are lacking. To address this gap, this study establishes age- and sex-
Victoria Higgins, Houman Tahmasebi, Mary Kathryn Bohn, Alexandra Hall, Khosrow Adeli   +4 more
openaire   +4 more sources

Mahalanobis' distance and propensity score to construct a controlled matched group in a Brazilian study of health promotion and social determinants

Revista Brasileira de Epidemiologia, 2014
In observational epidemiology it is usual to select a control group to study the effects of certain exposures on human health. Intervention studies are well known among epidemiologists but it is not very frequent in other areas of research. In this paper
Valéria Troncoso Baltar, Clóvis Arlindo de Sousa, Marcia Faria Westphal   +2 more
doaj   +1 more source

In Silico Modeling Demonstrates that User Variability During Tumor Measurement Can Affect In Vivo Therapeutic Efficacy Outcomes

Cancer Informatics, 2022
User measurement bias during subcutaneous tumor measurement is a source of variation in preclinical in vivo studies. We investigated whether this user variability could impact efficacy study outcomes, in the form of the false negative result rate when ...
Jake T Murkin, Hope E Amos, Daniel W Brough, Karl D Turley   +3 more
doaj   +1 more source

GEOGRAPHIC VARIATION IN SELECTED LIFE HISTORY TRAITS OF THE EASTERN NARROWMOUTH TOAD, GASTROPHRYNE CAROLINENSIS (HOLBROOK, 1836), ALONG THE NORTHEASTERN EDGE OF ITS GEOGRAPHIC RANGE [PDF]

, 2015
We examined the Eastern Narrowmouth Toad,Gastrophryne carolinensis, along the northeastern edge of its geographic range in Virginia to determine the extent to which selected life history traits in this region adhered to patterns associated with a ...
Delis, Pablo R., Meshaka, Jr., Walter E., Walters, Katie   +2 more
core   +2 more sources

Comparison of m-mode echocardiographic left ventricular mass measured using digital and strip chart readings: The Atherosclerosis Risk in Communities (ARIC) study

Cardiovascular Ultrasound, 2003
Background Epidemiological and clinical studies frequently use echocardiography to measure LV wall thicknesses and chamber dimension for estimating quantitative measures of LV mass.
Benjamin Emelia, Liebson Philip R, Skelton Thomas N, Arnett Donna K, Hutchinson Richard G   +4 more
doaj   +1 more source

CXCR2 deficient mice display macrophage-dependent exaggerated acute inflammatory responses [PDF]

, 2017
CXCR2 is an essential regulator of neutrophil recruitment to inflamed and damaged sites and plays prominent roles in inflammatory pathologies and cancer. It has therefore been highlighted as an important therapeutic target.
A Mantovani, A Rot, A Rot, A Zlotnik, A Zlotnik, AA Filardy, AE Cardona, AEI Proudfoot, C Schinke, D Marvel, DI Gabrilovich, F Bachelerie, F Balkwill, F Porcheray, F Sallusto, FR Balkwill, G Cacalano, H Saiwai, HM Baldwin, J Dalli, J Schindelin, J Yang, J-I Youn, J-I Youn, K Kishida, KM Hertzer, L Liu, M-C Lo, MK Ho, O Soehnlein, P Ranganathan, P Scapini, RA Navarro-Xavier, RM Devalaraja, S Milatovic, T Jamieson, T Jamieson, T Kakinuma, TJ Schall   +38 more
core   +1 more source

Measurement accuracy and reliability of tooth length on conventional and CBCT reconstructed panoramic radiographs

Dental Press Journal of Orthodontics, 2014
INTRODUCTION: This in vivo study assessed accuracy and reliability of tooth length measurements obtained from conventional panoramic radiographs and CBCT panoramic reconstructions to that of a digital caliper (gold standard).
Carlos Flores-Mir, Mark R Rosenblatt, Paul W. Major, Jason P. Carey, Giseon Heo   +4 more
doaj   +1 more source

Comparative evaluation and applicability of three different regression equation-based mixed dentition analysis in Northern Uttar Pradesh population

Journal of Indian Society of Pedodontics and Preventive Dentistry, 2018
Aims: This study aims to examine the accuracy and comparative correlation of three regression equation-based mixed dentition analysis in children of Moradabad city, North Uttar Pradesh.
Akash Bhatnagar, Seema Chaudhary, Ashish Amit Sinha, Naveen Manuja, Harsimran Kaur, T R Chaitra   +5 more
doaj   +1 more source

Hydraulic calipers [PDF]

, 1969
Hydraulic calipers determine area of annular openings in irregular or concealed passages. With modifications the device could be adapted to investigations of cross-sectional changes in heat flow passages, ducts, conduits, and heat exchanger ...
Benson, J. A.
core   +1 more source