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Topic: LH2

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	DBM to DBA Armies (Book III -- Armies from 500-999 AD)
		Sui Dynasty China (581-623): 1 Cv3, 1 Kn3 or Kn4, 1 LH2, 2 Sp4, 1 Bw4 or Ps2, [1 Cv3, 1 Kn3 or Kn4, 1 LH2* or Wb3 (southern barbarian), 2 Sp4, 1 Bw4] or [1 Bw4 or Ps2 or Hd (sp8), 5 Hd(sp8)].
		Early Tang (618-753): 3 Cv3, 2 LH2, [2 Cv3, 1 Cv3 or Kn3 or Kn4, 4 LH2* (Moho, Turkish)] or [1 LH2 (Moho, Turks) or Wb3 (Southern Barbarians), 4 Sp4, 2 Bw4 or Ps2].
		Tahirids Khurasanian (821-873): 3 Cv3, 2 LH2, 1 LH2* or Wb3 or Hd(ax6), 2 Sp4, 2 Bw4 or Ps2, 2 Ax4.
	www.fanaticus.org /DBA/armies/dbmdbabk3.html (2085 words)

	LIGHT-HARVESTING IN BACTERIAL PHOTOSYNTHESIS
		The bacteria sythesize enough LH2 to satisfy the RC, this is directly dependent on the ambient light intensity, the number of BChla per RC rises to 250 or more in low light cases.
		LH2 structure, a look at the possible energy transfer pathways in LH2 and how energy might migrate around the LH2 ring.
		There is a page outlining some ideas on how LH2 might modulate the absorption of its pigments, as well as how the LH1/RC core complex might be constructed, along with a page giving an overview of spectroscopic variants of LH2.
	www.chem.gla.ac.uk /protein/LH2/lh2.html (788 words)

	Forsberg seminar (Site not responding. Last check: 2007-11-07)
		The type of LH2 synthesised depends on the light conditions in which the cells are grown.
		Spectrophotometric studies showed that the high-light LH2 complex absorption maxima are at 803 and 857 nm (B800-850) and the LH1 complex absorption maxima are at 879 nm (B875).
		The high-light type of LH2 was crystallised but the crystals obtained were small and therefore not suitable for x-ray diffraction studies.
	plantcell.lu.se /seminars/abstracts/forsberg1.html (244 words)

	[No title]
		LH2 Structure/Function relationships (cont.))Spectral tuning / Funneling of energy to the RC From comparison of the a.a.
		sequences of LH2 from different species and the results of site-directed mutagenesis studies (on R. sphaeroides, carried out by Neil Hunter at Sheffield University) it had been predicted that (-Tyrosine 44 and (-Tryptophan 45 were responsible for shifting the absorbance peak of BChl B850 from 770nm in vitro to 820-850nm in various LH2’s.
		So shortest possible distance between B850 and B875 (LH2 to LH1) is 24A centre to centre (14A edge-to-edge), rate of energy transfer 3.3ps.
	alpha.qmw.ac.uk /~ugbt120/mpl10.doc (634 words)

	Norman LH2 Lamphead (Site not responding. Last check: 2007-11-07)
		The LH2 lamphead operates on all Series 450 Norman power supplies that we have made over the years including the discontinued P200B, P400-D, and P500 models, as well as the A200C Battery Portable System.
		Included with the LH2 is an FT120-UV plug-in Flashtube with UV filtration and a 20' cable.
		The LH2 has a standard ¼”x20 tapped hole on the bottom to accept practically all brands of camera brackets.
	www.photo-control.com /norman/lh2.htm (133 words)

	Determination of the Topological Shape of Integral Membrane Protein Light-Harvesting Complex LH2 from Photosynthetic ...
		The LH2 complex was obtained by solubilization of the chromatophores
		LH2 molecule is an integral membrane protein (IMP) complex.
		, is that the LH2 molecules are densely
	www.biophysj.org /cgi/content/full/86/2/1082 (4199 words)

	Biophysical Journal: Self diffusion and spectral modifications of a membrane protein, the Rubrivivax gelatinosus LH2 ... (Site not responding. Last check: 2007-11-07)
		It is liganded to a residue of the a N-terminal chain and partly accessible to the external surface of the protein (MacDermott et al., 1995; Koepke et al., 1996).
		In the two crystallographic LH2 structures, the carotenoid molecule is extended in an all-trans conformation from the cytoplasmic to the periplasmic surfaces.
		The blue shift of the carotenoids absorption in the cubic phase, as compared to LH2 in vivo and in detergent solution, indicates a new environment of their conjugated double-bound system, which is located in the hydrophobic core of the protein.
	www.findarticles.com /p/articles/mi_qa3938/is_200109/ai_n8984894 (1385 words)

	Welcome to Adobe GoLive 5 (Site not responding. Last check: 2007-11-07)
		The B800 LH2 complex is produced under low light conditions (< 300 lx) in the purple bacterium Rps.
		An electron density map at 7.5 Å resolution showing the B800 LH2 complex to be an octamer
		Modeling of the near infra-red absorption and CD spectra suggest that B800 LH2 pigments are arranged as shown in (A) in
	www.dl.ac.uk /SRS/PX/lh2/page6.html (155 words)

	[No title]
		The gaseous H2 four stage centrifugal compressor is designed to maintain the LH2 heat exchanger bath pressure constant.
		A gaseous H2 road able tube trailer station is used for re-saturation purposes of sub-cooled LH2 in the heat exchanger and for pressurization of the test tank as well as the LH2 storage dewar.
		The hazardous area classification for the LH2 Densification Unit/Facility is Class I, Division 2.
	www.lerc.nasa.gov /WWW/7720/doc/LH2DENSE.doc (621 words)

	DBM to DBA Armies (Book II -- Armies from 500 BC-499 AD) (Site not responding. Last check: 2007-11-07)
		Iberian, Celtiberian and Lusitanian (240-20 BC): 1 Cv3, 1 LH2*, 5 Ax3 (Iberian or Lusitanian) or 5 Wb3 (Celtiberian), 1 Ax3 or Ps2 or (non-Lusitanian) Wb3, 4 Ps2.
		Sertorius Spanish (80-72 BC): 1 Cv3, 1 LH2* or Cv3, 2 Bd4, [2 Bd4 or 2 Ax4, 3 Ax3 (Iberian/Lusitanian), 1 Wb3 or Ps2] or [2 Bd4 or 2 Wb3, 3 Wb3 (Celtiberian), 1 Ax3 or Ps2], 2 Ps2.
		Middle Imperial Roman (193-324): 2 Cv3, 1 LH2* or Bd4 or Ax4, 4 Bd4, 4 Ax4, 1 Bw3 or Ps2 or (from 275 in East or 312 in the army of Maxentius) Kn4 (Clibanarier).
	www.fanaticus.org /dba/armies/dbmdbabk2.html (3817 words)

	[No title]
		LH2 rocket only takes 1.22 tons per ton tank mass calculations tank:.001 water tank:.01 LH2 LH2 tank weighs 10 x more than water tank but it needs 1.22 / 29.87 less tanks, which results in the liquid hydrogen tank being 0.41 times less than the mass of the water tank.
		The LH2 mission uses 9 times as much water as LH2, because for every 18 grams of water, 2 are hydrogen.
		Therefore, since the LH2 advantage is exponential with mission delta-V, reducing the delta-V may reduce the LH2 advantage by some factor related to exponentials.
	www.neofuel.com /liq_hydrogen_vs_water.doc (1562 words)

	THERMAL ANALYSIS OF LH2 (Site not responding. Last check: 2007-11-07)
		The rigid body thermal model is more appropriate for LH2, and produces a better phase estimate for the crystallographic structure.
		The asymmetric unit of LH2 coloured according to residual B-factor: The first picture shows an isotropic refinement with an overall anisotropic correction.
		When LH2 is cooled the 850nm absorption band red-shifts, this suggests a change in the dynamics of the LH2 structure.
	www.chem.gla.ac.uk /protein/LH2/tls.html (370 words)

	Biophysical Journal: Absorption and CD spectroscopy and modeling of various LH2 complexes from purple bacteria
		Although the ring size can vary, the data are consistent with all the LH2 complexes having basically very similar structures.
		Calculations of spectroscopic properties of the LH2 bacteriochlorophyll-protein antenna complex from Rhodopseudomonas acidophila.
		Red shift of the zero crossing in the CD spectra of the LH2 antenna complex of Rhodopseudomonas acidophila: a structure based study.
	www.findarticles.com /p/articles/mi_qa3938/is_200204/ai_n9039849 (900 words)

	LH2 (Site not responding. Last check: 2007-11-07)
		The LH2 fixed position imager is truly a revolutionary new 2D imager.
		The embedded engine may be utilized to intelligently process or manipulate scanned data before it is sent to an application.
		The LH2 is rugged and built to last.
	www.opticonusa.com /lh2.htm (295 words)

	Dave Dietzler
		It will have 40 tons of LH2 in the aft LOX tank or 550 tons of water or 225 tons of methane or 375 tons of ammonia.
		It will have 340 tons of LH2 in two lateral LH2 tanks and three aft LOX tanks or 4650 tons of water in the same tanks or 1920 tons of liquid methane (1245 in LH2 tanks and 675 in LOX tanks) or 3165 tons of liquid ammonia.
		Since LH2 at 1000 seconds equates with an exhaust velocity of 9.8 kps, we have ln (160+40/160)*9.8=2.18 kps.
	groups.msn.com /DaveDietzler/newnuclearthermalrockets.msnw (890 words)

	Involvement of the C-Terminal Extension of the {alpha} Polypeptide and of the PucC Protein in LH2 Complex Biosynthesis ...
		Involvement of the C-Terminal Extension of the {alpha} Polypeptide and of the PucC Protein in LH2 Complex Biosynthesis in Rubrivivax gelatinosus -- Steunou et al.
		LH2 complexes and transferred to LH1 complexes that are closely
		the LH2 and the LH1 absorption peaks, the absorption spectra
	jb.asm.org /cgi/content/full/186/10/3143 (5178 words)

	Expression of the LIM-homeobox gene LH2 generates immortalized Steel factor-dependent multipotent hematopoietic ...
		Figure 2 Analysis of LH2 expression by in situ hybridizations of day 6 EBs using an antisense (A−C) and sense control (D) probes for the LH2 gene.
		LH2 expression analyses on the differentiated progeny of HPCs was performed on either multilineage colonies (HPC mix) or mast cells (HPC mast).
		Negative controls are PCR carried out on a mock RNA preparation (neg.), and on poly(A) RNA preparation of continuously cultured HPCs where no cDNA synthesis have been carried out [HPC LQ poly(A)−RT].
	www.nature.com /emboj/journal/v17/n19/fig_tab/7591268ft.html (788 words)

	Abe Silverstein (Site not responding. Last check: 2007-11-07)
		NASA had inherited an LH2 development program as a result of NACA work carried on at Lewis Research Center throughout the 1950's; the work culminated in the successful test of a 89,000 newton (20,000 pound) thrust LH2 engine and propellant injector in the late 1950's.
		Von Braun in particular expressed doubts about LH2 even though the Saturn-Atlas combination had the Centaur's LH2 system in the Atlas final stage, and he was definitely opposed to a new LH2 Saturn second stage.
		He was convinced that the use of LH2 in the upper Saturn stages was inherently sound, and his conviction was the major factor in swaying the whole committee, von Braun included, to accept LH2 boosters in the Saturn program.
	sulu.lerc.nasa.gov /history/abe.html (1151 words)

	The dynamics of structural deformations of immobilized single light-harvesting complexes -- Bopp et al. 96 (20): 11271 ...
		Previously it was shown that LH2 could be immobilized on mica in the presence of detergent and that the fluorescence of single
		The fluorescence images of single mica-immobilized LH2 complexes excited with circularly polarized light (A) and the distribution of the fluorescence count rates of the 273 single LH2 assemblies (B).
		The immobilization of LH2 complexes on the surface of mica is intended to model the protein-membrane interactions occurring
	www.pnas.org /cgi/content/full/96/20/11271 (3651 words)

	High-resolution AFM topographs of Rubrivivax gelatinosus light-harvesting complex LH2
		Columns from left to right: (1) markers at 97.4, 66.2, 42.7 and 31.0 kDa; (2) thermolysin (37 kDa); (3) crystals of native LH2, band at 115 kDa; (4) crystals of thermolysin-treated LH2, band at 82 kDa.
		The absorption spectra document the native state of the protein: arrows 1−3, carotenoid peaks at 460, 488 and 517 nm, respectively; arrow 4, Q
		The height of LH2 rings can be measured directly from such section analyses of raw data (vertical scale bar: 20 Å).
	www.nature.com /emboj/journal/v20/n12/fig_tab/7593800ft.html (779 words)

	Generation of Triplet and Cation-Radical Bacteriochlorophyll a in Carotenoidless LH1 and LH2 Antenna Complexes from ...
		The LH1 antenna complex and a native form of the LH2 complex were isolated from the carotenoidless R26 and R26.1 mutants of Rhodobacter sphaeroides by the use of a new detergent, sucrose monocholate.
		Thus, rapid generation of the triplet state, and its subsequent transformation into the cation-radical state of BChl a have been shown to be intrinsic properties of B870 and B850 BChl a assembly in the carotenoidless LH1 and LH2 antenna complexes.
		In the case of the carotenoid-containing LH2 complex, the triplet states of BChl a and carotenoid (spheroidene) were generated immediately after excitation, but the triplet-state BChl a was quenched efficiently by the carotenoid so that no BChl a cation radical was generated.
	pubs.acs.org /cgi-bin/abstract.cgi/bichaw/1998/37/i50/abs/bi981803q.html (365 words)

	In Vitro Self-Assembly of the Light Harvesting Pigment-Protein LH2 Revealed by Ultrafast Spectroscopy and Electron ...
		FIGURE 7 Plot presenting the relevant aggregation parameters N and k in dependence of the LH2 and LDAO concentrations, as obtained from simulations of the kinetics shown in Figs.
		Site-directed mutagenesis of the LH2 light-harvesting complex of Rhodobacter sphaeroides: changing bLys23 to Gln results in a shift in the 850-nm absorption peak.
		Temporally and spectrally resolved subpicosecond energy transfer within the peripheral antenna complex (LH2) and from LH2 to the core antenna complex in photosynthetic purple bacteria.
	www.biophysj.org /cgi/content/full/86/4/2363 (5223 words)

	IFIM Workshop Presentations (Site not responding. Last check: 2007-11-07)
		Stream LH2 — 11 Riffles - Deep/Fast HSC
		Stream LH2 — 42 versus 20 Transects (Sequence A & B) Deep/Fast HSC
		Stream LH2 — 11 Riffles - Shallow/Slow HSC
	www.mesc.usgs.gov /conferences/ifimconf/SlideIndex.asp?PresID=30 (432 words)

	A Second and Unusual pucBA Operon of Rhodobacter sphaeroides 2.4.1: Genetics and Function of the Encoded Polypeptides ...
		The structure of LH2 (6, 31) predicts that the fusion
		(D) Tricine-SDS-PAGE of the purified LH2 complex from panel B. (E) Western blot of the fusion protein from panel B with anti-PhoA antibodies.
		The structure and function of the LH2 (B800-850) complex from the purple photosynthetic bacterium Rhodopseudomonas acidophila strain 10050.
	jb.asm.org /cgi/content/full/185/20/6171 (7521 words)

	Craig R Meyer - 7H7
		Once LH2 is available in the USA, Canada and Europe for about a buck fifty per equivalent gallon, I predict that the airlines will enter a mad dash to convert to it out of sheer economic necessity.
		Since a pound of LH2 packs the same punch as four pounds of jet fuel energy-wise, each plane will only need to carry a quarter as many pounds of fuel to go the same distance.
		I presume the LH2 needs to be in pressure vessels, which wouldn't pack efficiently in a wing (or would they - lotsa long cylinders...).
	www.craigrmeyer.com /6831.html (2085 words)

	LH2 - 200 Watt/Second UV Lamphead with 20' Cable (Norman-LH2) - PriceGrabber.com
		LH2 - 200 Watt/Second UV Lamphead with 20' Cable (Norman-LH2) - PriceGrabber.com
		Norman LH2 - 200 Watt/Second UV Lamphead with 20' Cable
		Report a pricing error on the LH2 - 200 Watt/Second UV Lamphead with 20' Cable
	www.pricegrabber.com /search_getprod.php/masterid=733617 (58 words)

	Unraveling Exciton Relaxation and Energy Transfer in LH2 Photosynthetic Antennas (Site not responding. Last check: 2007-11-07)
		A long-standing uncertainty has been resolved concerning the early time evolution of light excitations in LH2 antennas of purple photosynthetic bacteria.
		Both isolated and native membrane-embedded LH2 antenna complexes were comprehensively studied using femtosecond time-resolved transient absorption spectroscopy together with conventional absorption and fluorescence emission spectroscopies at low temperatures.
		The results show that exciton relaxation within isolated LH2 complexes is characterized by subpicosecond time constants, while spectral evolution associated with energy transfer between the antenna complexes in photosynthetic membranes is characterized by time constants
	pubs.acs.org /cgi-bin/abstract.cgi/jpcbfk/2000/104/i42/abs/jp001993q.html (150 words)

	C-3/4 Console - Cryo, MPS
		The fuel is transferred via cross-country lines under differential pressure from an LH2 storage sphere at the launch pad.
		The MPS LH2/Helium Engineer (CMPS) monitors the MPS configuration during the loading of the supercold (cryogenic) liquid hydrogen and the on-board helium system that operates the LH2 valves.
		The Liquid Oxygen/Liquid Hydrogen Supervisor (TPROP) is a management-level engineer with expert knowledge of the cryogenics themselves, as well as the systems used to store, transfer and load the cryos into the Shuttle external tank and main propulsion system.
	science.ksc.nasa.gov /shuttle/countdown/lps/c-3-4/c-3-4.html (335 words)

	BUY HP Netserver LH2 -- Servers, Upgrades, Parts
		Compatibility: lc3 LH+ lc2 LHPro LH LD LH2 LX RS8 SS6
		Compatibility: e45 e50 lc3 LH+ lc2 LHPro LH LD LH2 LX RS8 SS6
		Send mail to webmaster@intekusa.com with questions or comments about this web site.
	www.intekusa.com /lh2.htm (341 words)

	[No title] (Site not responding. Last check: 2007-11-07)
		LD2) at 100 muA, but keeps the other one powered up for quick changes SCENARIO 2: Hall A runs in the same way as in scenario 1 ----------- Hall C runs only one loop, idling the other SCENARIO 3: like scenario 2, but Hall A vents LH2 loop ----------- : scen.
		-dE/dx for 4 GeV e- in LH2 (density 0.072 g/cm^3) is assumed to be 5.55 MeV cm^2/g, in LD2 (density 0.162 g/cm^3) half of that.
		the heatload induced into LH2 and LD2 loops at full power (90-100 Hz) and idling (40 Hz) are approximately: full power idling LH2 175 W 40 W LD2 150 W 70 W
	www.jlab.org /~volmer/cryogen_balance.txt (185 words)

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