منابع مشابه
Pearl drops
– If deposited on a hydrophobic rough substrate, a small drop of water can look like a pearl, with a contact angle close to 180. We examine the conditions for observing such a phenomenon and show practical achievements where the contact angle can be predicted and thus quantitatively tuned by the design of the surface microstructure. Presentation. – The contact angle of a drop on a solid is idea...
متن کاملSamuel Johnson: his ills, his pills and his physician friends.
Samuel Johnson (1709-1784) was one of the greatest men of his age. Although famed for his writings, especially his Dictionary and his folio on Shakespeare, he is remembered for his tavern conversations, his literary clubs and the great biography of his life by Boswell. He always enjoyed having physicians as his friends, and took a great interest in all branches of medicine. He would advise and ...
متن کاملTruck drops
One of the problems facing the introduction of novel crops is the concerns about their spread into the natural environment. A long-term study of oilseed rape (canola) growing on the verges of one of Britain’s busiest motorways provides some encouragement that at least some crops find the going tough outside the field environment in which they are sown. Michael Crawley at Imperial College London...
متن کاملBiocompatibility of fluids for multiphase drops-in-drops microfluidics
This paper addresses the biocompatibility of fluids and surfactants in the context of microfluidics and more specifically in a drops-in-drops system for mammalian cell based drug screening. In the drops-in-drops approach, three immiscible fluids are used to manipulate the flow of aqueous microliter-sized drops; it enables merging of drops containing cells with drops containing drugs within a Te...
متن کاملNature of His potential in His electrogram.
Unipolar His bundle electrograms were recorded with the muscle preparation isolated from the rabbit or the dog heart at as various sites as possible on and near the A-V conduction system and changes in appearance time and configuration of the so-called His (H) potential were examined. When the exploring electrode was shifted from the coronary sinus orifice down to the transition between the A-V...
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ژورنال
عنوان ژورنال: JAMA: The Journal of the American Medical Association
سال: 1896
ISSN: 0098-7484
DOI: 10.1001/jama.1896.02430820049016