منابع مشابه
Yasushi Saka: Stirring a melting pot of math and morphogens
I n a developing embryo, seemingly identical cells are directed to different fates by the combination of signals they receive. When the signals come from morphogens—extracellular molecules that spread from a localized source—the effect on a cell depends on the amount of morpho-gen it receives, with cells closer to the source receiving a higher dose. The change in morphogen concentration across ...
متن کاملStirring the Pot: Can Dietary Modification Alleviate the Burden of CKD?
Diet is one of the largest modifiable risk factors for chronic kidney disease (CKD)-related death and disability. CKD is largely a progressive disease; however, it is increasingly appreciated that hallmarks of chronic kidney disease such as albuminuria can regress over time. The factors driving albuminuria resolution remain elusive. Since albuminuria is a strong risk factor for GFR loss, modifi...
متن کاملJames B. Herrick lecture. The sad plight of the clinician-clinical investigator. "Don't boil the frog in the pot".
consider it a great privilege and honor to have been selected to receive the 1989 James B. Herrick award. James Bryan Herrick was born on August 11, 1861, in the Chicago suburb of Oak Park, and he interned at Cook County Hospital.2 His remarkable and seminal contribution to our understanding of myocardial infarction is well known. He recognized the importance of science in medicine, and in his ...
متن کاملAnalysis and extensions of the Frankle-McCann Retinex algorithm
Retinex Algorithm – Process of estimating the per-pixel gains necessary to achieve dynamic range compression in the original image Extension – Suppress artifacts – Reduce the number of iterations Abstract 4 / 29 High Dynamic Range – More accurate rendition of the original image – Realistically converted to a low resolution Retinex theory – Illuminant estimation, gamut mapping and HDR im...
متن کاملStirring unmagnetized plasma.
A new concept for spinning unmagnetized plasma is demonstrated experimentally. Plasma is confined by an axisymmetric multicusp magnetic field and biased cathodes are used to drive currents and impart a torque in the magnetized edge. Measurements show that flow viscously couples momentum from the magnetized edge (where the plasma viscosity is small) into the unmagnetized core (where the viscosit...
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ژورنال
عنوان ژورنال: Cahiers d'études africaines
سال: 2013
ISSN: 0008-0055,1777-5353
DOI: 10.4000/etudesafricaines.14867