Results 51 to 60 of about 170,663 (278)

Accuracy of DIF Estimates and Power in Unbalanced Designs Using the Mantel–Haenszel DIF Detection Procedure [PDF]

open access: yes, 2011
This study examined how much improvement was attainable with respect to accuracy of differential item functioning (DIF) measures and DIF detection rates in the Mantel–Haenszel procedure when employing focal and reference groups with notably unbalanced ...
Insu Paek, Hongwen Guo
core   +1 more source

Toroidal diamond anvil cell for detailed measurements under extreme static pressures

open access: yesNature Communications, 2018
Extreme static pressures exceeding a million atmospheres exist in a variety of natural environments, but obtaining such pressures in a laboratory is still a challenge.
Agnès Dewaele   +4 more
doaj   +1 more source

Electrically Readable Lateral Flow Assay Using Organic Transistors for Diagnostic Applications

open access: yesAdvanced Materials, EarlyView.
Electrolyte‐gated organic field‐effect transistors (EGOFETs) are integrated with lateral flow (LF) paper fluidics to create a reusable, portable, and low‐cost point‐of‐care (PoC) diagnostic test. The devices are validated for Human Immunoglobulin G detection, achieving high sensitivity (0.1 fm), selectivity, and reproducibility with rapid results in 20–
María Jesús Ortiz‐Aguayo   +4 more
wiley   +1 more source

On the Wigner-Kirkwood Expansion of the Free Energy and the Evaluation of the Quantum Correction

open access: yesAtoms, 2022
The Wigner-Kirkwood expansion of the quantum correction to the classical free energy is generally said to be in powers of ℏ2 and only its first few terms are presented.
Luc Kazandjian   +2 more
doaj   +1 more source

Heterogeneous Design in Functional DIF [PDF]

open access: yes, 2008
Dataflow formalisms have provided designers of digital signal processing systems with analysis and optimizations for many years. As system complexity increases, designers are relying on more types of dataflow models to describe applications while retaining these implementation benefits. The semantic range of DSP-oriented dataflow models has expanded to
William Plishker   +3 more
openaire   +1 more source

Fundamentals of Thermal Transport and Energy Conversion in Ultra‐High Temperature Ceramics: From Microscale Mechanisms to Macroscopic Properties

open access: yesAdvanced Science, EarlyView.
This review critically examines thermal transport and radiative properties of ultra‐high temperature ceramics for hypersonic flight, advanced nuclear systems, and next‐generation energy conversion devices. It explores phonon–photon–electron interactions, microstructural engineering, thermoelectric conversion, and machine learning‐accelerated multiscale
Zhipeng Pei   +8 more
wiley   +1 more source

Fission description: First steps towards a full resolution of the time-dependent Hill-Wheeler equation

open access: yesEPJ Web of Conferences, 2017
Dynamical description of low energy fission is, in our full microscopic approach, decomposed in two steps. In the first step we generate the Potential Energy Surface (PES) of the compound system we want to describe with the Hartree-Fock-Bogoliubov (HFB ...
Verrière Marc   +4 more
doaj   +1 more source

Pyrazole‐Derived Antibacterial Compounds Effectively Treat Methicillin‐Resistant Staphylococcus Aureus Infections by Inhibiting Aspartate Transcarbamoylase

open access: yesAdvanced Science, EarlyView.
This study unveils a novel antibacterial mechanism against MRSA, in which the compound Py‐27 selectively targets and inhibits aspartate transcarbamoylase (ATCase), a key enzyme in pyrimidine synthesis. This inhibition disrupts DNA replication, induces oxidative damage, leading to potent bactericidal activity.
Xiaorong Yang   +11 more
wiley   +1 more source

Price Transmission and Leadership in the Global Poultry Market: Results From Parametric and Nonparametric Approaches

open access: yesAgribusiness, EarlyView.
ABSTRACT Brazil and the United States account for more than 40% of global poultry exports, with China and South Korea among their major destination markets. This study examines price transmission and market linkages between Brazil and the United States using monthly poultry export price data from January 1990 to December 2024. It also assesses which of
Khondoker Abdul Mottaleb   +2 more
wiley   +1 more source

Investigating Different Theory-Based Differential Item Functioning Methods Under Different Scoring Situations

open access: yesInternational Journal of Assessment Tools in Education, 2017
This study intended to investigate theoperations of various theory-based Differential Item Functioning (DIF) methodsunder different scoring situations.
Hüseyin Selvi, Devrim Alıcı
doaj   +1 more source

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