Results 71 to 80 of about 44,820 (294)

Adaptive Low-Overhead Channel Estimation Tracking in RIS-Assisted Systems

open access: yesIEEE Access
Efficient channel estimation is paramount for realizing the performance potential of Reconfigurable Intelligent Surface (RIS)-assisted wireless networks.
Hamidreza Khaleghi, Stephane Paquelet
doaj   +1 more source

A Multicenter, Open‐Label, Phase 2 Trial Comparing Crizanlizumab Combined With Standard Therapy to Standard Therapy Alone on Renal Function in Patients With Sickle Cell Nephropathy (STEADFAST)

open access: yes
American Journal of Hematology, EarlyView.
Kenneth I. Ataga   +8 more
wiley   +1 more source

Liebig Review: Essential and Beneficial Elements in the Regulation of Cadmium Uptake and Tolerance in Crop Plants

open access: yesJournal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Cadmium (Cd2+) contamination in agricultural soils has been reported to pose risks to crop productivity, food safety, and human health. This review synthesizes current knowledge on the mechanisms by which essential (S, Zn, Fe, Mg, K, Ca) and beneficial (Si, Se, rare earth elements) elements mitigate Cd2+ toxicity in plants.
Maria Manzoor, Karl Hermann Mühling
wiley   +1 more source

Assessing the Impact of Characteristics of the Test, Common-items, and Examinees on the Preservation of Equity Properties in Mixed-format Test Equating [PDF]

open access: yes, 2014
Preservation of equity properties was examined using four equating methods - IRT True Score, IRT Observed Score, Frequency Estimation, and Chained Equipercentile - in a mixed-format test under a common-item nonequivalent groups (CINEG) design.
Wolf, Raffaela
core  

Ohmic heating dominates and ultrasound modulates aquafaba structure: A combined approach to design stable plant‐based emulsions

open access: yesJournal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND This study investigated the individual and combined effects of ohmic heating (OH, 20 and 40 V cm−1) and ultrasound (US, 425 and 850 W) on the chemical, physicochemical, and technological properties of chickpea aquafaba (AF) and its emulsions.
Débora Krichanã   +12 more
wiley   +1 more source

dyupon/IRT 1 [PDF]

open access: yes, 2018
working copy of some ̶s̶h̶i̶t̶ scripts for graduation ...
Veronika Ponizova
core   +1 more source

Psychometric properties of the general conspiracy belief scale using item response theory

open access: yesJurnal Penelitian dan Evaluasi Pendidikan
Evaluation of the psychometric properties of conspiracy theory belief instruments has been dominated by classical approaches with limitations, especially in dependence on sample size and inaccuracies in item-level analysis.
Sumin Sumin   +2 more
doaj   +1 more source

Application of Alternative IRT models to IRT Assumption Violation

open access: yesInternational Journal of Engineering and Technology
The purpose of this study is to investigate the most appropriate alternative IRT parameter estimation models among bi-factor model, testlet based model, and second-order IRT model when the IRT assumptions are not met. A simulation study was conducted to compare the alternative IRT parameter estimation models when the assumptions are unsatisfied. First,
Yoon Jiyoung, Lee Yoonsun
openaire   +1 more source

Addressing limitations in current measurement practices of trauma assessment in minoritized populations

open access: yesJournal of Traumatic Stress, EarlyView.
Abstract Standardized trauma assessment frameworks often fail to account for the unique experiences and symptom presentations of minoritized populations, including Black, Indigenous, and people of color (BIPOC) and sexual and gender minority (SGM) individuals, leading to methodological inequity.
Krithika Prakash   +4 more
wiley   +1 more source

MEMBANDINGKAN IRT MODEL 3PL DENGAN IRT MODEL 4PL UNTUK PENILAIAN MENGGUNAKAN COMPUTERIZED ADAPTIVE TEST [PDF]

open access: yes, 2016
One of the computer-based testing is the Computerized Adaptive Test (CAT), which is a computer-based testing system where the items were given to the participants adapted to test the ability of the participants.
Fatkhudin, Aslam, Hidayatullah, M. Fikri
core   +2 more sources

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