Results 141 to 150 of about 515,071 (327)

Diode step stress program for JANTX1N4570A [PDF]

open access: yes
The effect of power/temperature step stress when applied to a variety of semiconductor devices was evaluated. Performance of the zener diode JANTX1N4570A manufactured by Siemens and Motorola is reported.

core   +1 more source

Sir William Siemens Exhibition [PDF]

open access: bronze, 1958
Graham Kerr   +11 more
openalex   +1 more source

Sheep femoral artery occlusion is well tolerated and does not result in ischemia

open access: yesAnimal Models and Experimental Medicine, EarlyView.
Left femoral artery occlusion (yellow arrows) can be seen shortly after the lateral femoral circumflex artery origin, with distal arterial reconstitution. Sheep with femoral artery occlusion showed no change in pain scores nor mobility, thus making them an appropriate model for novel small diameter femoral artery graft studies. Abstract Objective Sheep
Timothy Shiraev   +10 more
wiley   +1 more source

Midlife Steroid‐Binding Globulin Levels and In Vivo Neuroimaging Measures of Tau in Older Men and Women

open access: yesAnnals of Neurology, EarlyView.
Objective In men and women, sex steroid hormones have been associated with increased risk of Alzheimer's disease (AD) dementia. We aimed to investigate the influence of midlife testosterone and sex hormone binding globulin (SHBG) levels on later‐life in vivo markers of β‐amyloid (Aβ) and tau deposition in clinically healthy older men. Methods This time‐
Rachel F. Buckley   +16 more
wiley   +1 more source

Longitudinal Analysis of Neuroradiological Biomarkers for Fragile X‐Associated Tremor/Ataxia Syndrome and Implications for Clinical Trials

open access: yesAnnals of Neurology, EarlyView.
Objective The objective of this study was to show the capacity of structural brain magnetic resonance imaging (MRI) measures to serve as monitoring biomarkers for Fragile X‐Associated Tremor/Ataxia Syndrome (FXTAS). Methods From 2 longitudinal studies of male FMR1 premutation carriers, 2 brain MRI scans were selected from each participant, collected ...
David Hessl   +6 more
wiley   +1 more source

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