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A A hairpin ribozyme formed from the minus strand of a satellite RNA associated with tobacco ringspot virus. On the basis of hydroxyl radical footprinting see

A A huge individual of unicellular amoeba The occurrence of rapid expansion shrinkage of a branch vs. the oscillation phase difference between the branch and hub part. Results for rapid shrinkage are shown upside down.

A A hydropathy plot of the amino-acid sequence of pea LHC II. Arrangement of the light-harvesting Chlorophyll a b protein complex in the thylakoid membrane. Biochim Biophys Acta 890

A A hydrophobic poly a PAMAM dendrimer showing the terminal amine groups. Abbreviation-. PAMAM, polyamidoamine.

A A Inkjet printing ejection mechanisms

A A linear array of electrodes to create a curtain of corona discharges. .

A A liquid in equilibrium with its vapor. At critical temperature, interface between the fluids disappear, at which condition the densities of liquid and vapor are equal.

A A methanolic extract of Cubebae fructus A, B besides diffuse brown

A A micelle diameter

A A micro fluidic system with integrated microelectrode arrays to monitor exocytosis from cultured cells.

A A mitochondrion isolated from rabbit brain. Even after isolation and negative staining with isotonic ammonium molybdate, the mitochondrion has maintained a striking elongated appearance. The cristae are not very numerous, but many of them form complete septa. The matrix space is clearly recognizable, x 62,000. A mitochondrion isolated from the masseter muscle of the rabbit, and treated as in Figure I. Also this mitochondrion has a non-spherical shape. The cristae are numerous, but the matrix space is more abundant than in rat heart. In this mitochondrion the tri-dimensional organization is particularly evident. X 120,000.

A A model for b in chloroplast thylakoid membrane Large-scale purification of active cytochrome b f complex from spinach chloroplasts. Arch Biochem Biophys 252 657.

A A model for the transmembrane arrangement of a bacterial LHl complex oryff-subunit. Adapted from Zuber .

A A Model MAMEF-based Protein Detection Assay. Schematic representation of the effect of microwave heating on the protein detection surface 2issay.

A A model of the Na channel, showing four stages A schematic diagram of a squid axon membrane composed of ion-exchange phases. External Surface

A A modified section of the nuclide churt of some technetium isotopes and isolopes of rullie-niuni and molybdenum. The stable isotopes are indicated by tlie hatched sejuares.

A A molecular AND gate with chemical inputs in the absence of both H and Na . The fluorescence spectra are adapted from with permission

A A multi-pixel fibre optic design based on the design of

A A noisy transmission electron micrograph of vitrified earthworm hemoglobin and

A A normal distribution. The inflection point occurs at 0.607 of the peak height. The quantity is the width at 0.500 of the peak height and corresponds to 2354 cr. The quantity is the base width and corresponds to 4 r as indicated. From Miller, J. M., Chromatography

A A nucleosome is formed when dsDNA, shown schematically as a tube, wraps roughly twice around a histone octomer. This complex, or nucleosomal core particle, includes at its center two copies of histone H3, two of histone H4, and two H2A-H2B dimeric pairs, one of which is not visible. Ends of each histone molecule are thought to protrude like tails from the core, ready to interact with other molecules. In many organisms, histone HI, portrayed at left in one possible position, helps to anchor DNA to the core and promotes further compaction of the DNA into a 30-nanometer fiber. See Grun-stein.49 Nucleosome core particle

A A partial crystal structure of the avidin-biotin complex. MAS spectra of the avidin- 02,18 Olbiotin complex at 21.14 T with 17 h data acquisition. Reprinted with permission from ,

A A patient with ACS with ST-segment elevation with the pattern found in cases of severe transmural ischaemia .

A A patient with an acute myocardial infarction with evident ST-segment elevation and frequent, polymorphic, repetitive, PVC that triggers VF . The electric cardioversion resolved the problem.

A A patient with myocardial infarction of anteroseptal zone in a subacute phase



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