Results 81 to 90 of about 17,169 (223)

Magnetic resonance spectroscopy (1H) of the intervertebral lumbar disc in the adult and its application in the imaging routine

open access: yesSaúde & Tecnologia, 2015
Aims – To assess the potential of magnetic resonance spectroscopy (1H‑MRS) in the diagnostic of degenerative disease of the lumbar disc and to advocate the adding of this technique in the classification of the invertebral disc involution vs degeneration (
J. Cruz Maurício   +1 more
doaj   +1 more source

Three‐parameter kinematic theory for shear assessment of reinforced concrete short columns

open access: yesStructural Concrete, EarlyView.
Abstract This work presents a rational kinematics‐based model for assessing the shear capacity of rectangular reinforced concrete short columns. Due to their high stiffness and brittleness, short columns are particularly vulnerable to seismic forces, often exhibiting critical failures.
Daniele Arcuri   +2 more
wiley   +1 more source

SIMNORAT - Data Management Guidance Document (D12)

open access: yes, 2019
Component 1: Supporting Implementation of MSP Sub-component 1.3.3: Data Information requirements for MSP The implementation of Maritime Spatial Planning (MSP), defined in the MSP Directive 2014/89/EU requires high quality maritime spatial data and information. Data sharing is favored by Maritime Spatial Data Infrastructures (MSDI).
Carval, D., Jarno, R.
openaire   +2 more sources

Organic and Inorganic Pollutants, Oxidative Stress Biomarkers, and Electrophoretic Protein Profiles in an Endangered Thresher Shark (Alopias vulpinus) From Southeastern Brazil: A Case Study

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT A comprehensive screening of different environmental contaminants (total metals, thermostable metal fractions associated with detoxification, and persistent organic pollutants) was conducted in an endangered common thresher shark (Alopias vulpinus ) individual incidentally captured in southeastern Brazil.
Sidney Fernandes Sales Junior   +10 more
wiley   +1 more source

Interspecific Differences in the Effects on Embryos Between Freshwater and Marine Fish Exposed to Water‐Accommodated Fractions Derived From Very‐Low Sulfur Fuel Oil

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT This study evaluated the toxic effects of water‐accommodated fractions (WAFs) of very‐low sulfur fuel oil (VLSFO) on freshwater and marine fish embryos. Embryos of Japanese medaka (Oryzias latipes), Java medaka (Oryzias javanicus), and grass puffer (Takifugu alboplumbeus) were exposed to various concentrations of VLSFO‐WAF, and the effects on ...
Jumpei Matsuo   +5 more
wiley   +1 more source

Diminishing Appetite for Rising Prices—The Situation of Polish Restaurants in the Face of Inflation

open access: yesFoundations of Management
The aim of this article is to determine how the COVID-19 pandemic and the conflict in Ukraine influenced the functioning of the food service sector in Poland between 2020 and 2023.
PIEKUT Marlena, ŁOSIEWICZ Weronika
doaj   +1 more source

AI‐enabled bumpless transfer control strategy for legged robot with hybrid energy storage system

open access: yesCAAI Transactions on Intelligence Technology, EarlyView.
Abstract Designing Hybrid energy storage system (HESS) for a legged robot is significant to improve the motion performance and energy efficiency of the robot. However, switching between the driving mode and regenerative braking mode in the HESS may generate a torque bump, which has brought significant challenges to the stability of the robot locomotion.
Zhiwu Huang   +6 more
wiley   +1 more source

The economic foundations of powersharing: Evidence from Africa

open access: yesAmerican Journal of Political Science, EarlyView.
Abstract How—and with whom—do rulers share power? Existing research focuses on the strategic logic of powersharing. In this paper, we analyze its economic foundations. Powersharing is modeled as a subnational fiscal contract, in which rulers allocate political representation based on constituencies’ revenue potential. Empirically, we combine historical
Yannick I. Pengl, Philip Roessler
wiley   +1 more source

Bayesian inference for dynamic Q matrices and attribute trajectories in hidden Markov diagnostic classification models

open access: yesBritish Journal of Mathematical and Statistical Psychology, EarlyView.
Abstract Hidden Markov diagnostic classification models capture how students' cognitive attributes evolve over time. This paper introduces a Bayesian Markov chain Monte Carlo algorithm for diagnostic classification models that jointly estimates time‐varying Q matrices, latent attributes, item parameters, attribute class proportions and transition ...
Chen‐Wei Liu
wiley   +1 more source

Is economics self‐correcting? Replications in the American Economic Review

open access: yesEconomic Inquiry, Volume 63, Issue 2, Page 463-485, April 2025.
Abstract This paper reviews the impact of replications published as comments in the American Economic Review between 2010 and 2020. We examine their citations and influence on the original papers' (OPs) subsequent citations. Our results show that comments are barely cited, and they do not affect the OP's citations—even if the comment diagnoses ...
Jörg Ankel‐Peters   +2 more
wiley   +1 more source

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