Results 61 to 70 of about 713,845 (330)

Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley   +1 more source

Exploring the Impact of Niacin Intake on Cardiovascular Outcomes: A Comprehensive Analysis Using NHANES Data (2003–2018)

open access: yesReviews in Cardiovascular Medicine
Background: The relationship between cardiovascular outcomes and niacin consumption levels remains unclear. This study aimed to examine the correlation between niacin intake and the incidence of cardiovascular disease, as well as the ...
Lishi Shao   +10 more
doaj   +1 more source

Preparation of SiO2-diamond composites by spark plasma sintering

open access: yesJournal of Asian Ceramic Societies, 2021
SiO2-diamond composites with 65–85 mass% diamond were fabricated by spark plasma sintering at 1873 K under 130 MPa for 300 s using bimodal diamond particle size of 2 and 25 µm in diameter.
Mettaya Kitiwan   +2 more
doaj   +1 more source

Affecting the Properties of Copper–Graphene Electroconductive Composite by Severe Plastic Deformation

open access: yesAdvanced Engineering Materials, EarlyView.
Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich   +3 more
wiley   +1 more source

OBESITY AND ITS ASSOCIATION WITH OTHER CARDIOVASCULAR RISK FACTORS IN WOMEN IN CENTRAL IRAN - WOMEN'S HEALTHY HEART PROJECT

open access: yesARYA Atherosclerosis, 2010
  INTRODUCTION: Cardiovascular diseases (CVD) are considered the most important cause of death worldwide. Obesity is a major CVD risk factor. This study was conducted to evaluate the prevalence of obesity and its association with other CVD risk ...
Masoumeh Sadeghi   +6 more
doaj  

Shift work and cardiovascular disease – do the new studies add to our knowledge?

open access: yesScandinavian Journal of Work, Environment & Health, 2018
The association of shift work with cardiovascular disease (CVD) has been studied for decades with new systematic reviews repeatedly being published (1–4). Based on 34 studies and over 2 million employees, the systematic review of Vyas et al (4) concluded
Mikko Härmä   +2 more
doaj   +1 more source

MOFs and COFs in Electronics: Bridging the Gap between Intrinsic Properties and Measured Performance

open access: yesAdvanced Functional Materials, EarlyView.
Metal‐organic frameworks (MOFs) and covalent organic frameworks (COFs) hold promise for advanced electronics. However, discrepancies in reported electrical conductivities highlight the importance of measurement methodologies. This review explores intrinsic charge transport mechanisms and extrinsic factors influencing performance, and critically ...
Jonas F. Pöhls, R. Thomas Weitz
wiley   +1 more source

Cardiovascular disease risk estimation among slums residents of Lucknow using QRISK3 calculator

open access: yesJournal of Education and Health Promotion
INTRODUCTION: Cardiovascular diseases (CVDs) are presently the leading cause of death in India. Cardiovascular diseases are result of multiple factors.
Deepshikha Pandey   +3 more
doaj   +1 more source

Nitroxide Pharmaceutical Development for Aging-Related Degeneration & Disease

open access: yesFrontiers in Genetics, 2015
Nitroxide small molecule agents are in development as preventative or therapeutic pharmaceutical drugs for age-related macular degeneration and cardiovascular disease, which are two major diseases of aging.
Jacob A. Zarling   +6 more
doaj   +1 more source

Electrical phase change of CVD-grown Ge-Sb-Te thin film device [PDF]

open access: yes, 2011
A prototype Ge-Sb-Te thin film phase-change memory device has been fabricated and reversible threshold and phase change switching demonstrated electrically, with a threshold voltage of 1.5 – 1.7 V. The Ge-Sb-Te thin film was fabricated by chemical vapour
B. Gholipour   +6 more
core   +1 more source

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