Results 111 to 120 of about 309,210 (382)

Two Robust Tools for Inference about Causal Effects with Invalid Instruments [PDF]

open access: yesarXiv, 2020
Instrumental variables have been widely used to estimate the causal effect of a treatment on an outcome. Existing confidence intervals for causal effects based on instrumental variables assume that all of the putative instrumental variables are valid; a valid instrumental variable is a variable that affects the outcome only by affecting the treatment ...
arxiv  

Electrochemistry‐Based Assay for Monitoring of Adherent Macrophages and Foam Cells on Ab‐CD36 Modified Electrospun Nanofibers

open access: yesAdvanced Materials Interfaces, EarlyView.
Here, for the first time, macrophages and foam cells' adhesions to the developed polystyrene/graphene oxide‐3‐aminopropyltriethoxysilane/Anti‐CD36 (PS@GAPTES@Ab‐CD36) electrospun nanofiber‐based biofunctional surface using electrochemical measurements and fluorescence imaging are examined.
Simge Er Zeybekler   +5 more
wiley   +1 more source

A Latent Mixture Model for Heterogeneous Causal Mechanisms in Mendelian Randomization [PDF]

open access: yesarXiv, 2020
Mendelian Randomization (MR) is a popular method in epidemiology and genetics that uses genetic variation as instrumental variables for causal inference. Existing MR methods usually assume most genetic variants are valid instrumental variables that identify a common causal effect.
arxiv  

Adjusting Cell‐Surface Interactions Through a Covalent Immobilization of Biomolecules

open access: yesAdvanced Materials Interfaces, EarlyView.
This review presents an overview of current and emerging immobilization techniques coupled with an in‐depth investigation of the underlying mechanisms governing the activity and stability of covalently immobilized biomolecules. The aim of this study is to serve as a guide for the development of long‐lasting biomedical coatings with versatile biological
Sara Shakibania   +2 more
wiley   +1 more source

Interaction of serum lipoproteins with the hydroperoxide of methyl linoleate*

open access: yesJournal of Lipid Research, 1960
The interaction of serum lipoproteins with the hydroperoxide of methyl linoleate was studied by means of analytical ultracentrifugal or paper electrophoretic analysis.
Toshiro Nishida, FredA. Kummerow
doaj  

Regression with a right-censored predictor, using inverse probability weighting methods [PDF]

open access: yesarXiv, 2020
In a longitudinal study, measures of key variables might be incomplete or partially recorded due to drop-out, loss to follow-up, or early termination of the study occurring before the advent of the event of interest. In this paper, we focus primarily on the implementation of a regression model with a randomly censored predictor.
arxiv  

Facile Fabrication of Antibacterial 3D Fibrous Sponge via In Situ Protonation‐Induced Direct Electrospinning

open access: yesAdvanced Materials Interfaces, EarlyView.
This work introduces a versatile and straightforward approach for directly fabricating electrospun 3D nanofibrous sponge using a selection of solvents, avoiding potentially toxic additives or additional steps. The most important novelty in this study is a one‐step electrospinning process that simultaneously imparts three‐dimensionality and ...
Altangerel Amarjargal   +5 more
wiley   +1 more source

Intestinal lipoprotein synthesis. Comparison of nascent Golgi lipoproteins from chow-fed and hypercholesterolemic rats.

open access: yesJournal of Lipid Research, 1984
Hypercholesterolemia, induced by a cholesterol-enriched diet, is associated with distinctive modifications in the serum lipoproteins of a variety of species.
L L Swift   +3 more
doaj  

Correlative Super‐Resolution Imaging of Cellular Nanopores Facilitated by Transparent Polymer Waveguide Chips

open access: yesAdvanced Optical Materials, Volume 13, Issue 8, March 13, 2025.
Correlative super‐resolution optical imaging of the ultrastructure of rat liver sinusoidal endothelial cells (LSECs) across a large field of view (FOV) with 3D structured illumination microscopy (3D‐SIM) and single‐molecule localization microscopy (SMLM), facilitated by a transparent polymer photonic waveguide chip, is presented.
Surjendu Bikash Dutta   +9 more
wiley   +1 more source

Large lipoproteins are excluded from the arterial wall in diabetic cholesterol-fed rabbits

open access: yesJournal of Lipid Research, 1988
In diabetic hypercholesterolemic rabbits at plasma triglyceride concentrations of approximately 5000 mg/dl, 55% of plasma cholesterol (1400 mg/dl) was in lipoproteins with diameters larger than 75 nm (Sf greater than 400), 40% in smaller very low density
B G Nordestgaard, D B Zilversmit
doaj  

Home - About - Disclaimer - Privacy