Publications by authors named "Rahmouni H"

This article reveals the crucial structural, magnetic, and electrical properties of LaSrNaMnTiO (LSNMTO) manganite, highlighting the significance of this material in the field of materials science. Gain a deeper understanding of the promising properties of LSNMTO and its potential for technological advancement by delving into this informative article. The X-ray diffraction data of the LSNMTO indicate that this ceramic solid solution crystallizes in the 3̄ rhombohedral structure.

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LaNa □ MnO (0.00 ≤ ≤ 0.15) manganites were successfully synthesized using the solid-state route.

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The present paper provides interesting measurements and methodologies to investigate the key factors controlling the electrical response of perovskite systems. The studied system was successfully prepared using a solid-state route. The chemical analysis and the X-ray diffraction results confirm the formation of the desired perovskite phase.

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The present work proposes the best realistic theoretical approaches to examine the experimental conductivity data taken for LaCaMnNbO. For this purpose, we comprehensively discussed the structural, microstructural, and electrical properties of the LaCaMnNbO perovskite. Both X-ray diffraction and Rietveld analysis show the orthorhombic structure of the ceramic.

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In this paper, we are proposing a blockchain-based architectural model to ensure the integrity of healthcare-sensitive data in an AI-based medical research context. In our approach, we will use the HL7 FHIR standardized data structure to ensure the interoperability of our approach with the existing hospital information systems (HIS). Indeed, structuring the data coming from several heterogeneous sources would enhance its quality.

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Article Synopsis
  • - Prior studies on the effectiveness of revascularization before transcatheter aortic valve replacement (TAVR) have shown mixed results in patients with significant coronary artery disease (CAD), leading to this meta-analysis to evaluate outcomes more comprehensively.
  • - The analysis included 24 studies with over 12,000 TAVR patients, revealing no significant difference in 30-day or 1-year mortality rates between those who underwent pre-TAVR PCI and those who did not, along with minimal differences in other major complications.
  • - The study concluded that routine pre-TAVR revascularization does not improve survival rates, but it does increase the risk of life-threatening bleeding, suggesting that future research should focus on identifying patients who might
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Aims: Right ventricular systolic dysfunction (RVSD) is an important determinant of outcomes in heart failure (HF) cohorts. While the quantitative assessment of RV function is challenging using 2D-echocardiography, cardiac magnetic resonance (CMR) is the gold standard with its high spatial resolution and precise anatomical definition. We sought to investigate the prognostic value of CMR-derived RV systolic function in a large cohort of HF with reduced ejection fraction (HFrEF).

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Background: Telehealth studies have highlighted the positive benefits of having the service in rural areas. However, there is evidence of limited adoption and utilization. Our objective was to evaluate this gap by exploring U.

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The electrical characterization ofa LaSrMnO compound sintered at 800, 1000 and 1200 °C was investigated by means of the impedance-spectroscopy technique. As the results, the experimental conductivity spectra were explained in terms of the power law. The AC-conductivity study reveals the contributions of different conduction mechanisms.

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Echocardiography is commonly utilized in patients with acute respiratory distress syndrome (ARDS) for assessment of cardiac function, volume status, and the potential development of acute cor pulmonale. In severe ARDS, prone positioning is frequently used, which imposes technical challenges during transthoracic echocardiography (TTE) image acquisition. Moreover, prone positioning can affect cardiopulmonary function in ways that are reflected on the echocardiographic findings in this position.

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Background: Among patients with heart failure and left ventricular (LV) dysfunction despite guideline directed medical therapy, cardiac resynchronization (CRT) is an effective technology to reverse LV remodeling. Given that a large portion of patients are non-responders, alternatives to traditional LV-lead placement have been explored. A promising alternative is image targeted placement of an LV-lead to latest mechanically activated segment without scar.

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Background: Individuals with Familial Hypercholesterolemia (FH) are at high risk for atherosclerotic cardiovascular disease (ASCVD) events.

Objectives: The purpose of this study was to evaluate the incidence, predictors, and outcomes of admissions for acute coronary syndromes (ACS) in this high-risk group.

Methods: Utilizing the National Readmission Databases, we identified individuals with or without FH admitted to participating hospitals for ACS.

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Electrical properties of PrCaMnXO (X = Co, Ni, Cr and Fe) systems have been investigated using impedance spectroscopy measurements. The reported results confirmed the role of cationic disorder on the transport properties of the doped PrCaMnO system. For the case of the substitution by Co and Ni and Fe transition metals, the lower temperature side has been marked by the activation of the hopping conductivity over the nearest sites.

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Among patients who have undergone percutaneous coronary intervention (PCI), the use of dual antiplatelet therapy (DAPT) is associated with increased risk of bleeding, but decreased stent thrombosis and myocardial infarction unrelated to the stent. As PCI techniques and devices have progressed, the optimal duration of DAPT has come into question. We identified all randomized controlled trials (RCTs) of patients undergoing PCI, who received one or more drug eluting stents (DES) for stable coronary artery disease (CAD) or acute coronary syndrome (ACS), and randomized to short (1-3 months) versus standard duration DAPT.

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Background: We aimed to conduct this study with the goal of further clarifying the role of sodium-glucose cotransporter-2 inhibitors (SGLT2i) in patients with preexisting heart failure with reduced ejection fraction with or without diabetes and to leverage increased sample size and power to evaluate clinically important secondary safety and efficacy outcomes.

Methods: This meta-analysis was completed according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. The primary outcome was a composite of cardiovascular death or heart failure hospitalization.

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Background: Cryptogenic stroke and embolic stroke of undetermined source (ESUS) are a frequently encountered categories of ischemic stroke with an uncertain cause.

Methods: We analyzed all randomized clinical trials (RCTs) that evaluated antithrombotic therapy and patent foramen ovale (PFO) closure in cryptogenic stroke and/or ESUS. We calculated aggregate hazard ratios (HRs) using direct and network meta-analysis.

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Introduction: Challenges accessing behavioural health services in rural and underserved areas are compounded by severe shortages of behavioural health specialists, and difficulties placing patients. Tele-emergency (tele-ED) behavioural health is a promising solution for enhancing access to specialists and assisting in patient placement. This paper describes two tele-ED behavioural health models in the Midwest delivering mental- and substance use disorder services to rural and underserved adult populations.

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The orthorhombic PrNaMnO ceramic was prepared in polycrystalline form by a Pechini sol-gel method and its structural, magnetic, electrical and dielectric properties were investigated experimentally. A structural study confirms that the sample is single phase. Magnetic measurements show that the sample is a charge ordered manganite.

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In the present study, the structural, morphological, electrical, and dielectric properties of NiZnFeAlO annealed at 600 °C, 900 °C, and 1200 °C were investigated. The X-ray diffraction patterns confirmed the presence of the single-phase cubic spinel structure with the 3̄ space group. The SEM images of NiZnFeAlO nanoparticles demonstrated that these samples (Ni900 and Ni1200) were nano-sized and that the increase in annealing temperature enhanced the agglomeration rate.

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