Results 161 to 170 of about 1,659,955 (202)

Spotlight on the Nucleotide: Solid-State NMR for the Investigation of ATP Hydrolysis in the ATPase SmsC. [PDF]

Chemistry
Wehr N, Decamps L, Schlüter J, Linssen K, Künze G, Sengupta K, DeBeer S, Wiegand T.   +7 more
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In Times of Anticipatory Grief, Hold On to Your Relationships. [PDF]

N C Med J
Galanos AN.
europepmc   +1 more source

"Some Kind of Magic?" How Adaptive Experts Navigate Complexity in Pediatric Ultrasound-Guided Vascular Access. [PDF]

Perspect Med Educ
Humblet MH, Mesman J, Lingard L, Frèrejean J, van Mook WNKA, Leroy PLJM.   +5 more
europepmc   +1 more source

Kekulé superconductivity in twisted magic angle bilayer graphene. [PDF]

Nat Commun
Wang K, Levin K.
europepmc   +1 more source

Direct observation of two-channel photodissociation of carbon monoxide from the hemoglobin subunits. [PDF]

Nat Commun
Lepeshkevich SV, Sazanovich IV, Parkhats MV, Gilevich SN, Yantsevich AV, Weinstein JA, Towrie M, Dzhagarov BM.   +7 more
europepmc   +1 more source

On the role of demagnetizing tensors in arbitrary orientations of general ellipsoids and implications for MRI safety assessment. [PDF]

Med Phys
Pakarinen T.
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Broadband cross polarization for ultra-wideline magic-angle spinning NMR. [PDF]

Phys Chem Chem Phys
Kimball JJ, Keil S, Bußkamp M, Altenhof AR, Hansen MR, Schurko RW.   +5 more
europepmc   +1 more source

Geometric Derivation of Nuclear Magic Numbers and Fundamental Constants via 5D-Lattice Packing

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Constant and Nearly Constant Block-Sum Partially Balanced Incomplete Block Designs and Magic Rectangles

Journal of Statistical Theory and Practice, 2022
In this paper, the author establishes a connection between magic rectangles and constant block-sum partially balanced incomplete block designs. A magic rectangle of order \(a_1\times a_2\) is an array in elements \(1, 2,\dots, a_1a_2\), each appearing only once so that each of the \(a_1\) rows adds to a constant \(A_1\) and each of the \(a_2\) columns ...
Ravindra Khattree
exaly   +2 more sources

Magic Number: A Partial History of the Fine-Structure Constant

Archive for History of Exact Sciences, 2003
The magic number considered in this article is \(\alpha= 1/137\), which is called Sommerfeld's fine-structure constant in most textbooks of atomic and quantum physics. Even before \(\alpha\) was turned into a spectroscopic quantity, this dimensionless combination of the natural constants \(e\), \(c\), and \(h\) had been discussed by some chemists ...
exaly   +5 more sources