American Association for the Advancement of Science

Layers, American Association for the Advancement of Science, Washington, DC, 1954, p. 161. 

Figure Cl.5.2. Fluorescence excitation spectra (cps = counts per second) of pentacene in /i-teriDhenyl at 1.5 K. (A) Broad scan of the inhomogeneously broadened electronic origin. The spikes are repeatable features each due to a different single molecule. The laser detuning is relative to the line centre at 592.321 nm. (B) Expansion of a 2 GHz region of this scan showing several single molecules. (C) Low-power scan of a single molecule at 592.407 nm showing the lifetime-limited width of 7.8 MHz and a Lorentzian fit. Reprinted with pennission from Moemer [198]. Copyright 1994 American Association for the Advancement of Science.

E. J. Largent, "MetaboHsm of Inorganic Fluoride" ia Fluoridation as a Public Health Measure, American Association for the Advancement of Science, Washiagton, D.C., 1954, pp. 49—78. 

William Eykamp, Ph.D., Adjunct Professor of Chemical Engineering, Tufts University Formerly President, Koch Membrane Systems Member, American Institute of Chemical Engineers, American Chemical Society, American Association for the Advancement of Science, North American Membrane Society, European Society of Membrane Science and Technology (Section 22, Alternative Separation Processes)... 

Hirsi, E. (1978). Transponation Energy Conservation Policies. In Energy II Use Uonservntion nnd Supply, eds. P. H. Abelson and A. L. Haiiiinoiid. Washington, DC American Association for the Advancement of Science. 

Figure 3. PEO,LiCF,SO, crystal structure viewed along the c axis. CF,SO, groups are shared. Coordination around one Li+ ion is shown by broken lines. Reprinted with permission from P. Lightfoot, M. A. Meltha and P. G. Bruce, Science 1993, 262, 883. Copyright 1993 American Association for the Advancement of Science.

Figure 1.72 The structure of (C60)OsO4(Bu py)2. (Reprinted with permission from Science, 1991, 252, 312.) Copyright (1991) American Association for the Advancement of Science.)...

Sillen, L. G. (1961). The physical chemistry of seawater. In "Oceanography" (M. Sears, ed.). International Oceanographic Congress (New York, 1959), pp. 549-581. Publication 67, American Association for the Advancement of Science, Washington DC. 

As a result of science education research, a new era of reform in science education has started with the new centuiy. New standards have been fixed (National Research Council, 1996, 2000). The National Science Education Standards (National Research Council, 1996) and also the 2061 project of ihe American Association for the Advancement of Science (1989,1990) assume that inquiry in general and inquiry in the context of practical work in science education is central to the achievement of scientific literacy (Hofstein Mamlok-Naaman, 2007). 

Practical activities should embody as best as possible the scientifie proeesses that have been preseribed by the American Association for the Advancement of Science observation, elassification, numerieal relations, measurements, time-spaee relations, eommunieation (oral, pictorial, written), deriving of conclusions, prediction ( what would happen if. .hypothesis making, production of operational definitions, identifieation and control of variables, experiment and explanation of experimental data. Different theoretical perspectives should be used with the aim to optimize the positive eognitive and affeetive outcomes. The use, sometimes together, sometimes separately, of different perspeetives can act complimentarily and can lead to positive results (Niaz, 1993 Tsaparhs, 1997). 

Laboratory, where he worked with John Longo and Allan Jacobson on the synthesis and characterization of mixed metal oxides and their application in heterogeneous catalysis. He joined the chemistry faculty of Northwestern University in 1984 where he is now Professor of Chemistry and an active member of the Center for Catalysis and Surface Science and the Materials Research Science and Engineering Center. Kenneth Poeppelmeier has published over 250 research papers and supervised approximately 40 Ph.D. students in the area of inorganic and solid state chemistry. He is a Fellow of the American Association for the Advancement of Science (AAAS) and the Japan Society for the Promotion of Science (JSPS) and has been a Lecturer for the National Science Council of Taiwan (1991), Natural Science Foundation of China (1999) and Chemistry Week in China (2004), and more recently an Institut Universitaire de France Professor (2003). 

Figure 46-5. Variations in the way in which proteins are inserted into membranes. This schematic representation, which illustrates a number of possible orientations, shows the segments of the proteins within the membrane as a-helicesand the other segments as lines. The LDL receptor, which crosses the membrane once and has its amino terminal on the exterior, is called a type I transmembrane protein. The asialoglycoprotein receptor, which also crosses the membrane once but has its carboxyl terminal on the exterior, is called a type II transmembrane protein. The various transporters indicated (eg, glucose) cross the membrane a number of times and are called type III transmembrane proteins they are also referred to as polytopic membrane proteins. (N, amino terminal C, carboxyl terminal.) (Adapted, with permission, from Wickner WT, Lodish HF Multiple mechanisms of protein insertion into and across membranes. Science 1985 230 400. Copyright 1985 by the American Association for the Advancement of Science.)...

Figure 8. Translational energy distributions of CO(v = 0) after dissociation of H2CO at hv = 30,340.1 cm for the CO product rotational levels (a) Jco = 40, (b) 7co = 28, and (c) Jco = 15. The internal energy of the correlated H2 fragment increases from right to left. Dashed lines are translational energy distributions obtained from the trajectory calculations. Markers indicate H2 vibrational thresholds up to v = 4, and in addition odd rotational levels for v = 5—7. Reprinted from [8] with permission from the American Association for the Advancement of science.

Figure 11. The minimum energy path of the OH + CH3F reaction, not including zero-point energy. The four labeled structures are (A), the central barrier TS (B), the nearly collinear backside well complex [HOCH3 F] (C) the transition of the F atom toward the OH moiety (D) the hydrogen-bonded [CH3OH F ] structure. Reprinted from [63] with permission from the American Association for the Advancement of Science.

Figure 18. Contour plots of the potential energy surfaces of the first three electronic states of H2O. The polar plots depict the movement of one H atom around OH with an OH bond length fixed at 1.07 A. Energies are in electron volts relative to the ground electronic state. The X and B states are degenerate at the conical intersection (denoted by (g)) in the (a) H—OH geometry and (b) H—HO geometry. Reprinted fix)m [75] with permission from the American Association for the Advancement of Science.

Figure 19. Outgoing waves on the first three electronic states of H2O following excitation of the (B Ai) (X Ai) transition. Green and red lobes have positive and negative amplitudes, respectively. The gray-fiUed contour on the B surface represents the Franck-Condon region of excitation from the ground state. Reprinted from [75] with permission from the American Association for the Advancement of Science. (See color insert.)...

R. I. Bowman, M. Berson and A. E. Leviton (eds.) Patterns of Evolution in Galapagos Organisms. American Association for the Advancement of Science, Pacific Division. San Francisco. 

Figure 2.12 The sound of boiling methanol on a case Vs-in., horizontal, steam-heated copper tube at 1 atm. (From Westwater et al., 1955. Copyright 1955 by American Association for the Advancement of Science, Washington, DC. Reprinted with permission.)...

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