Results 81 to 90 of about 314,779 (317)

Diffusion‐Weighted Imaging for the Evaluation of the Sacroiliac Joint in Pediatric Patients

open access: yesArthritis Care &Research, Accepted Article.
Background Maturational signal in the sacroiliac joint (SIJ) of skeletally immature youth is often misinterpreted as inflammation. Diagnostic tools that improve specificity are greatly needed. Apparent diffusion coefficient (ADC) values from diffusion‐weighted imaging (DWI), when used with standard imaging, may enhance diagnostic accuracy.
Michael L. Francavilla   +6 more
wiley   +1 more source

Computational Thinking Integration into Middle Grades Science Classrooms: Strategies for Meeting the Challenges [PDF]

open access: yes, 2018
This paper reports findings from the efforts of a university-based research team as they worked with middle school educators within formal school structures to infuse computer science principles and computational thinking practices.
Akram, Bita   +7 more
core   +1 more source

A Q‐Learning Algorithm to Solve the Two‐Player Zero‐Sum Game Problem for Nonlinear Systems

open access: yesInternational Journal of Adaptive Control and Signal Processing, Volume 39, Issue 3, Page 566-581, March 2025.
A Q‐learning algorithm to solve the two‐player zero‐sum game problem for nonlinear systems. ABSTRACT This paper deals with the two‐player zero‐sum game problem, which is a bounded L2$$ {L}_2 $$‐gain robust control problem. Finding an analytical solution to the complex Hamilton‐Jacobi‐Issacs (HJI) equation is a challenging task.
Afreen Islam   +2 more
wiley   +1 more source

Asimov's Coming Back [PDF]

open access: yes, 2006
Ever since the word ‘ROBOT’ first appeared in a science\ud fiction in 1921, scientists and engineers have been trying\ud different ways to create it. Present technologies in\ud mechanical and electrical engineering makes it possible\ud to have robots in ...
Wang, Mr. L.
core  

Laser Metal Deposited Ti4822 Hollow Pipe: Experimental and Computational Modelling Study

open access: yesAdvanced Engineering Materials, EarlyView.
Laser metal deposition (LMD) of a crack‐free built Ti4822 alloys is challenging. This article reports outstanding characteristics of a hollow pipe that is built with LMD technology when a predicted, nontransformation substrate temperature of 800 °C is used.
Sadiq A. Raji   +5 more
wiley   +1 more source

Tracing the spatial origins and spread of SARS-CoV-2 Omicron lineages in South Africa

open access: yesNature Communications
Since November 2021, five genetically distinct SARS-CoV-2 Omicron lineages (BA.1–BA.5) are believed to have emerged in southern Africa, with four (BA.1, BA.2, BA.4, and BA.5) spreading globally and collectively dominating SARS-CoV-2 diversity.
Graeme Dor   +31 more
doaj   +1 more source

Computational thinking beyond computer science

open access: yes, 2023
This chapter outlines computational thinking (CT) as a thinking framework that both crosses and goes beyond existing subjects. The chapter sets by introducing the concept of CT and linking it to the German concept of Didaktik, here highlighting both its general and subject-related aspects.
Stig Børsen Hansen   +2 more
openaire   +1 more source

What Do Large Language Models Know About Materials?

open access: yesAdvanced Engineering Materials, EarlyView.
If large language models (LLMs) are to be used inside the material discovery and engineering process, they must be benchmarked for the accurateness of intrinsic material knowledge. The current work introduces 1) a reasoning process through the processing–structure–property–performance chain and 2) a tool for benchmarking knowledge of LLMs concerning ...
Adrian Ehrenhofer   +2 more
wiley   +1 more source

Multidrug-Resistant Virulent Escherichia coli Strains in Cattle: Implications on Food Safety and Public Health

open access: yesInternational Journal of Microbiology
Escherichia coli inhabit the gastrointestinal tract of mammals, including cattle, where they occur as commensals. However, some strains have evolved as highly virulent pathogens that also harbor a variety of multidrug-resistant determinants.
Ajay Kumar   +4 more
doaj   +1 more source

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