24-09-21
a brief history of blood collection systems and devices a brief history of blood…

    a brief history of blood collection systems and devices     Before the modern vacuum tube, blood collection tubes and other devices were difficult and imprecise. Etched lines in borosilicate glass tubes reflected the amount of blood the phlebotomist…

    a brief history of blood collection systems and devices    …


Gratis
24-09-21
How Electric Motors Work How Electric Motors Work

  How Electric Motors Work     Flick a switch and get instant power—how our ancestors would have loved electric motors! You can find them in everything from electric trains to remote-controlled cars—and you might be surprised how common they are. How…

  How Electric Motors Work     Flick a switch and get instant…


Gratis
24-09-21
Tubes and pipes in technical and everyday use Tubes and pipes in…

Tubes and pipes in technical and everyday use     In the beginning was the hollowed-out tree trunk, one of the first capillary tube to be crafted by human hand. With a vast array of models in the plant world to inspire him, Homo sapiens had a much…

Tubes and pipes in technical and everyday use     In the beginning…


Gratis
24-09-21
Swelling kinetic study of poly(methyl vinyl ether-co-maleic acid) hydrogels as vehicle candidates for drug delivery Swelling kinetic study of…

  Swelling kinetic study of poly(methyl vinyl ether-co-maleic acid) hydrogels as vehicle candidates for drug delivery     This review highlights recent progress in the synthesis and application of vinyl ethers (VEs) as monomers for modern homo- and…

  Swelling kinetic study of poly(methyl vinyl ether-co-maleic acid)…


Gratis
24-09-21
UChicago institute helps reassemble ancient, rare art from first to 6th centuries UChicago institute helps…

  UChicago institute helps reassemble ancient, rare art from first to 6th centuries     BAMIYAN, Afghanistan — Here is a reminder to someone with the initials A.B., who on March 8 climbed inside the cliff out of which Bamiyan’s two giant Buddhas were…

  UChicago institute helps reassemble ancient, rare art from first to…


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