Results 71 to 80 of about 283,018 (295)

Sticky Yet Slippery: Molecular Ordering Reconciles Bubble‐Surface Affinity With Ultralow Friction at the Nanoscale

open access: yesAdvanced Science, EarlyView.
By engineering the molecular order and thickness of PDMS layers, we reconcile the stickiness and slipperiness during bubble transport. AFM measurements and MD simulations further reveal how these nanoscale architectures tune hydrophobic interaction FHB and friction force f.
Shishuang Zhang   +7 more
wiley   +1 more source

Ordinal Regression Analysis: Fitting the Proportional Odds Model Using Stata, SAS and SPSS

open access: yes, 2009
Researchers have a variety of options when choosing statistical software packages that can perform ordinal logistic regression analyses. However, statistical software, such as Stata, SAS, and SPSS, may use different techniques to estimate the parameters.
Liu, Xing, Xing Liu
core   +1 more source

A SAS Package for Logistic Two-Phase Studies

open access: yesJournal of Statistical Software, 2014
Two-phase designs, in which for a large study a dichotomous outcome and partial or proxy information on risk factors is available, whereas precise or complete measurements on covariates have been obtained only in a stratified sub-sample, extend the ...
Walter Schill   +2 more
doaj   +1 more source

Developing a Scale to Measure Students’ Attitudes toward Science

open access: yesInternational Journal of Assessment Tools in Education, 2020
Theaim of this study is to develop a science attitude scale (SAS). For thatpurpose, the literature review has been done for suggestions for creatingscales and a new draft scale developed.
Adem Akkuş
doaj   +1 more source

PANX2 Suppresses Lung Adenocarcinoma Progression by Inducing Disulfidptosis and Enhancing Antitumor Immunity

open access: yesAdvanced Science, EarlyView.
ABSTRACT Lung adenocarcinoma (LUAD) remains a leading cause of cancer mortality with limited therapeutic options. Disulfidptosis, a novel cell death modality driven by disulfide stress, represents a promising target, yet its regulation in LUAD is poorly defined. Here, we identify Pannexin 2 (PANX2) as a tumor suppressor in LUAD.
Yi Chen   +7 more
wiley   +1 more source

Applied Medical Statistics Using SAS

open access: yes, 2013
Applied Medical Statistics Using SAS is a thorough documentation of statistical methods, inclusive of medical data sets and SAS code. The book would make an excellent reference guide for medical data analysts with access to base SAS 9.3 or a textbook for
K. Jasen, SALMASO, LUIGI, Jasen, Kelcey
core   +1 more source

Twin studies: A unique epidemiological tool

open access: yesIndian Journal of Community Medicine, 2016
Twin studies are a special type of epidemiological studies designed to measure the contribution of genetics as opposed to the environment, to a given trait. Despite the facts that the classical twin studies are still being guided by assumptions made back
Monalisha Sahu, Josyula G Prasuna
doaj   +1 more source

Mixed‐Coordination Electrolytes With Molecular Additives for Robust Interphases in High‐Voltage Rechargeable Magnesium Batteries

open access: yesAdvanced Science, EarlyView.
A mixed‐coordination electrolyte (MCE) combined with a molecular additive (MCE‐MA) promotes pseudo ion pair (pIP) formation within a solvent‐separated ion pair (SSIP)–rich environment, enabling a robust interphase that significantly improves the cycle performance of high‐voltage rechargeable magnesium batteries (RMBs).
Dedy Setiawan, Toshihiko Mandai
wiley   +1 more source

High Free‐Volume Imidazole‐Based Ionomers for High‐Temperature Proton Exchange Membrane Fuel Cells

open access: yesAdvanced Science, EarlyView.
High free‐volume imidazole‐based ionomers (PF4IM‐72) enable enhanced phosphoric acid uptake and efficient proton transport, delivering peak power densities of 0.645 W cm−2 at 160 °C and 0.838 W cm−2 at 200 °C in HT‐PEMFCs. This work highlights a promising platform for next‐generation ionomers with improved high‐temperature performance and stability ...
Ge Chao   +7 more
wiley   +1 more source

A practical guide to adopting Bayesian analyses in clinical research

open access: yesJournal of Clinical and Translational Science
Background: Bayesian statistical approaches are extensively used in new statistical methods but have not been adopted at the same rate in clinical and translational (C&T) research.
Lauren B. Gunn-Sandell   +5 more
doaj   +1 more source

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