Results 41 to 50 of about 1,830 (249)

A Unifying Approach to Self‐Organizing Systems Interacting via Conservation Laws

open access: yesAdvanced Intelligent Discovery, EarlyView.
The article develops a unified way to model and analyze self‐organizing systems whose interactions are constrained by conservation laws. It represents physical/biological/engineered networks as graphs and builds projection operators (from incidence/cycle structure) that enforce those constraints and decompose network variables into constrained versus ...
F. Barrows   +7 more
wiley   +1 more source

A sociocultural framework for understanding technology integration in secondary school mathematics (Un Marco Sociocultural para Comprender la Integración de la Tecnología en las Matemáticas Escolares de Secundaria) [PDF]

open access: yesPNA: Revista de Investigación en Didáctica de la Matemática, 2010
This paper proposes a theoretical framework for analyzing relationships between factors influencing teachers’ use of digital technologies in secondary mathematics classrooms.
Merrilyn Goos
doaj  

Lung Ultrasound for the Detection of Radiologic Progression of Interstitial Lung Abnormalities in Patients With Rheumatoid Arthritis

open access: yesArthritis &Rheumatology, EarlyView.
Objective Interstitial lung disease (ILD) is an important extra‐articular manifestation of rheumatoid arthritis (RA) associated with high mortality and morbidity. Lung ultrasonography (LUS) has recently emerged as a possible screening tool. We assessed the role of LUS in monitoring radiologic progression and the development of new interstitial lung ...
Marie Vermant   +15 more
wiley   +1 more source

A Multicenter Randomized Controlled Trial of Malignant Gastric Outlet Obstruction: Tailored Partially Covered Stents (Placed Fluoroscopically) versus Standard Uncovered Stents (Placed Endoscopically)

open access: yesGastroenterology Research and Practice, 2014
The aim of our study is to compare the efficacy and safety of “outlet-shape” tailored stents with standard stents for the management of distal gastric cancer causing gastric outlet obstructions (GOOs) with varying gastric cavity shapes and sizes.
Ding Shi   +3 more
doaj   +1 more source

Palliative Surgery or Metallic Stent Positioning for Advanced Gastric Cancer: Differences in QOL

open access: yesMedicina, 2021
Background and Objectives: Twenty percent of the patients affected with stage IV antropyloric stomach cancer are hospitalized with a gastric outlet obstruction syndrome (GOOS) requiring its resolution to improve the quality of life (QoL).
Enrico Fiori   +11 more
doaj   +1 more source

The epistemic ceiling: Veteran practitioners' perspectives on primary qualification entry standards for teaching secondary mathematics in Scotland

open access: yesBritish Educational Research Journal, EarlyView.
Abstract This paper presents an exploratory analysis of contemporary curricular and professional qualification policies in the Scottish education system, focusing on minimum qualification thresholds for mathematics teaching. The study examines how veteran secondary mathematics practitioners perceive the structural and pedagogical implications of using ...
Paul Argyle McDonald
wiley   +1 more source

Dual Regulatory Functions of Classical Zinc Finger Clusters from Myeloid Zinc Finger‐1

open access: yesChemistry – A European Journal, EarlyView.
The classical zinc finger (ZF) protein MZF1 uses two ZF clusters to achieve metal‐dependent and gene‐specific promoter recognition. The differential redox stability and modular utilization of the two ZF clusters enable MZF1 to regulate cerebrovascular, neuronal, and cancer‐related transcriptional programs.
Yunha Hwang   +5 more
wiley   +1 more source

Weak measurement of the Goos–Hänchen shift [PDF]

open access: yesOptics Letters, 2013
It is well known from quantum mechanics that weak measurements offer a means of amplifying and detecting very small phenomena. We present here the first experimental observation of the Goos-Hanchen shift via a weak measurement approach.
JAYASWAL, GAURAV   +2 more
openaire   +4 more sources

Uniaxial compressive strength prediction and ratio parameter optimization of titanium tailings composite backfill materials using intelligent hybrid models

open access: yesDeep Underground Science and Engineering, EarlyView.
Based on the 90 datasets, ERT and four optimization algorithms were used to build four hybrid models to predict the UCS of the backfill body. The SMA‐ERT model was the most effective model, and it can reliably guide the design of the backfill ratio parameters. Abstract This study analyzed the feasibility of using titanium (Ti) tailings as a backfilling
Weijun Liu, Zida Liu, Zhixiang Liu
wiley   +1 more source

The asymmetric Goos–Hänchen effect [PDF]

open access: yesJournal of Optics, 2013
We show in which conditions optical gaussian beams, propagating throughout an homogeneous dielectric right angle prism, present an asymmetric Goos-Hänchen (GH) effect. This asymmetric behavior is seen for incidence at critical angles and happens in the propagation direction of the outgoing beam.
Araujo, Manoel P.   +2 more
openaire   +2 more sources

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