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A 3M HEPA airstream helmet.

A 3Q DOR plot showing the magnetic field dependency of the isotropic 3q and 5dor shift- Based on Eqs. , the and Pq values for the each oxygen in L-MSG can be obtained from the corresponding line slope and abscissa point, respectively.

A 3QMAS spectrum, the top MAS projection is taken from a resonance indicated with a red arrow MAS and DOR spectra of the eight oxygen-sites in L-MSG.

A 3u and a 12 10 helix, a parallel and an antiparallel sheet and of a-Methyl-P-homo-Ala and Leu residues .

A 4 x 10 cm diameter spherical air hole in HMX. The initial shock pressure is 50 kbar. The density and burn fraction cross sections through the center of the hole are shown at various times. The flow does not build toward detonation.

A 4 x 10 cm diameter spherical air hole in PETN. The initial shock pressure is 20 kbar. The density and burn fraction cross sections through the center of the hole are shown at various times. The flow does not build toward a detonation.

A 4 x 10 cm diameter spherical hole in TATB. The initial pressure is 125 kbar. The density and burn fraction cross sections through the center of the hole are shown at various times. The flow does not build toward a detonation.

A 4 X 14 array of blue DPVBi OLEDs used to excite the PL of the reaction product of ADA and hydrazine. 4x10 pixels are lit each pixel is 2 x 2 mm

A 4-bit parity generator.

A 4-circle single-crystal diffractometer system.

A 4-D being would be the ultimate Houdini and could knot or unknot a string by temporarily lifting it into the fourth dimension. On the left is a string before it has been knotted.

A 4-D God thrusts His hand into three-space. Is there a way to lock a 4-D being in our space by thrusting a knife through the hand

A 4-element meandering mixer and its dimensions.

A 4-exo-trig cyclization with intramolecular difTerentiation of enantiotopic leaving groups .

A 4-membered NHC

A 4-minute application of 35 glycolic add produced vesiculation and exudation on this 22-year-old patient. Young patients are particularly prone to this type of complloatlon in this area following alpha-hydroxy acid peels. Transient hyperpigmentation also occurred

A 4-rung Mobius ladder contained in the molecular graph of

A 4-tube Electrolyzer Stack Prototype

A 4-year-old girl with leukemia suffering from acute respiratory distress syndrome. On DWI there are bilateral hyperintensities partly seen on the T2-weighted and FLAIR images. The lesions affect the cortex, the basal ganglia, the white matter as well as the cerebellum

A 40-nm wide logo for NIST .

A 40-nm wide logo for NIST surface. The ripples in the background are due to electrons in the fluid-like layer at the copper surface, bouncing off the cobalt atoms — much hke the patterns produced when pebbles are dropped in a pond. Image provided courtesy of J. A. Strosdo and R. J. Celotta NIST,

A 40-year-old male received chemotherapy including Bleomycin for testicular cancer. HRCT was performed because of fever, cough and dyspnoea. HRCT revealed peripheral intralobular septa and ground-glass opacification. Due to the known pulmonary toxicity of the applied Bleomycin, a pulmonary drug toxicity was suspected and verified by open lung biopsy. Symptoms disappeared and findings decreased after application of steroids. Note the similarity to

A 400 MHz spin-echo MAS H NMR spectrum of a crown with alde-

A 400 nm pitch MCWNT array with lOum of nematic LC seen between crossed polarisors at different applied electric fields

A 400 ton compression press with 18 platens



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