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Early reliable, valid screening, diagnosis, and treatment improve peripheral arterial disease outcomes, yet screening and diagnostic practices vary across settings and specialties. A scoping literature review described reliability and validity of peripheral ischaemia diagnosis or screening tools. Clinical studies in the PUBMED database January 1, 1970, to August 13, 2018, were reviewed summarising...
Frequency stability of resonators used in low noise oscillators is typically achieved by encasing the resonator or the complete oscillator in a temperature-controlled oven. This method is preferred over electrically pulling the resonator which results in a lower loaded Q. The oven approach introduces long warm-up time, increased size, and adds considerably to the total power dissipation of the oscillator...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.