Results 161 to 170 of about 129,657 (313)

Arterial Stiffness Measured as Pulse Wave Velocity is Highly Correlated with Coronary Atherosclerosis in Asymptomatic Patients

open access: yes, 2012
[[abstract]]Aim: Carotid-femoral pulse wave velocity is a well-known predictor of all-cause and cardiovascular mortality. Few studies have evaluated the relationship between brachial-ankle pulse wave velocity (ba-PWV) and coronary artery disease.
Chiu-Shong Liu;Chia-Ing Li;Chuen-Ming Shih;Wen-Yuan Lin;Chih-Hsueh Lin;Shih-Wei Lai;Tsai-Chung Li;Cheng-Chieh Lin
core  

Spin‐Split Edge States in Metal‐Supported Graphene Nanoislands Obtained by CVD

open access: yesAdvanced Materials, EarlyView.
Combining STM measurements and ab‐initio calculations, we show that zig‐zag edges in graphene nanoislands grown on Ni(111) by CVD retrieve their spin‐polarized edge states after intercalation of a few monolayers of Au. ABSTRACT Spin‐split states localized on zigzag edges have been predicted for different free‐standing graphene nanostructures.
Michele Gastaldo   +6 more
wiley   +1 more source

Why High-Frequency Pulse Tubes Can Be Tipped

open access: yes, 2008
Presented at the 16th International Cryocooler Conference, held May 17-20, 2008 in Atlanta, Georgia.The typical low-frequency pulse-tube refrigerator loses significant cooling power when it is tipped with the pulse tube’s cold end above its hot end ...
Backhaus, S., Swift, G. W.
core  

Flexible Dielectric Acoustic Resonator Patch for Tissue Regeneration

open access: yesAdvanced Materials, EarlyView.
A flexible dielectric acoustic resonator patch enables MHz‐range ultrasound generation through resonance amplification without using piezoelectric materials. Conformal integration on a curved substrate allows efficient acoustic delivery to tissue‐mimicking environments.
Donyoung Kang   +7 more
wiley   +1 more source

Energetic Offset in Organic Solar Cells‐ Importance, Confusion and Outlook

open access: yesAdvanced Materials, EarlyView.
Energetic offsets in organic solar cells (OSCs) remain a subject of debate due to measurement‐ and lab‐dependent discrepancies. This Perspective clarifies the physical origins of these variations and identifies temperature‐dependent electro‐optical methods as a reliable approach to obtain consistent offset values.
Nakul Jain   +5 more
wiley   +1 more source

Dynamic trajectory of estimated pulse wave velocity in middle⁃aged and elderly people and its relationship with cardiovascular diseases

open access: yesHuli yanjiu
ObjectiveTo explore the dynamic trajectory of estimated pulse wave velocity in middle⁃aged and elderly people and its relationship with cardiovascular diseases.MethodsBased on the population cohort data from the China health and retirement longitudinal ...
HUANG Mingliang, MA Qiuping
doaj  

Ultrafast Vertical Organic Electrochemical Transistors With Ion‐Permeable Conductive Polymer Top Electrodes

open access: yesAdvanced Materials, EarlyView.
Vertical organic electrochemical transistors (vOECTs) are limited in speed by ion‐impermeable metal electrodes that slow ion injection. Using ion‐permeable PBFDO top electrodes allows direct vertical ion injection into BBL channels, achieving high current densities (>400 A cm−2), large on/off ratios (>106), and ultrafast switching in 28 µs. This sets a
Han‐Yan Wu   +14 more
wiley   +1 more source

Localized Temperature Monitoring in Mouse Brain during Light Delivery via a Non‐Planar Tapered Fiber‐Integrated µRTD Sensor

open access: yesAdvanced Materials, EarlyView.
We report a multifunctional tapered optical fiber integrating a conformal micro‐resistance temperature detector (µRTD) for local, real‐time thermometry during optical stimulation. The platform combines light‐delivery and temperature sensing within a minimally invasive footprint, enabling detection of sub‐degree cortical heating under representative ...
Antonio Balena   +6 more
wiley   +1 more source

The inferior vena caval compression theory of hypotension in obstetric spinal anaesthesia: studies in normal and preeclamptic pregnancy, a literature review and revision of fundamental concepts

open access: yes, 2011
Full metadata records and copyright statements for publications contained in this portfolio thesis are available at the identifiers listedThree clinical investigations together with a combined editorial and review of the cardiovascular physiology of ...
Sharwood-Smith, Geoffrey H.   +1 more
core  

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