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Other 1201420589-3070-0 gravity vortex portable gravity bong 3 colors start time sun 09 mar 2008 : 07 est ; close time sun 16 mar 2008 : 07 est ; bid $ 6 99 no reserve ; shipping $ 1 00 total $ 7 99 quantity 1 condition new views 331 auto extend no starting bid $ 6 99 bids 0 gravity vortex, winner of the 2006 high times cannabis cup best product gold medal 1. Introduction 1.1. Abrikosov's prediction of the Flux-Line Lattice Numerous metals, alloys, and compounds become superconducting when they are cooled below a transition temperature Tc . This critical temperature ranges from Tc 1 K for Al, Zn, Ti, U, W and Tc 4.15 K for Hg the superconductor discovered first, Kamerlingh Onnes 1911 ; , over Tc 9.2 K for Nb the elemental metal with the highest Tc ; and Tc 23 K for Nb3 Ge the highest value from 1973 to 1986, see the overview by Hulm and Matthias 1980 ; to the large Tc values of the high-Tc superconductors HTSC's ; discovered by Bednorz and Mller 1986 ; , e.g. YBa2 Cu3 O7- YBCO, 1, Wu et al. 1987 ; with Tc 92.5 K and u Bi2 Sr2 Ca2 Cu3 O10 + BSCCO ; with Tc 120 K, and Hg-compounds which under pressure have reached Tc 164 K Gao et al. 1994, Kim, Thompson et al. 1995 ; . The superconducting state is characterized by the vanishing electric resistivity T ; of the material and by the complete expulsion of magnetic flux, irrespective of whether the magnetic field Ba was applied before or after cooling the superconductor below Tc Meissner and Ochsenfeld 1933 ; . The existence of this Meissner effect proves that the superconducting state is a thermodynamic state, which uniquely depends on the applied field and temperature but not on previous history. As opposed to this, an ideal conductor expels the magnetic flux of a suddenly switched on field Ba but also "freezes" in its interior the magnetic flux which has been there before the conductivity became ideal. It was soon realized that some superconductors do not exhibit expulsion of flux, but the applied field partly penetrates and the magnetization of the specimen depends on the magnetic history in a complicated way. Early theories tried to explain this by a "spongelike" nature of the material, which could trap flux in microscopic current loops that may become normal conducting when the circulating current exceeds some critical value. The true explanation of partial flux penetration was given in a pioneering work by Abrikosov 1957 ; . Alexei Abrikosov, then a student of Lew Landau in Moscow, discovered a periodic solution of the phenomenological theory of superconductivity conceived a few years earlier by Ginzburg and Landau GL ; 1950 ; . Abrikosov interpreted his solution as a lattice of parallel flux lines, now also called flux tubes, fluxons, or Abrikosov vortex lines, figure 1. These flux lines thread the specimen, each carrying a quantum of magnetic flux 0 h 2e 2.07 10-15 Tm2 . At the centre of a flux line the superconducting order parameter r ; the complex GL function ; vanishes. The line 0 is surrounded by a tube of radius , the vortex core, within which || is suppressed from its superconducting value || 1 that it attains in the Meissner state, figure 2. The vortex core is surrounded by a circulating supercurrent J r ; which generates the magnetic field B r ; of the flux line. In bulk specimens the vortex current and field are confined to a flux tube of radius ; at large distances r , current and field of an isolated vortex decay as exp -r ; . In thin films of thickness d , the current and magnetic field of a vortex extend to the larger distance film 22 d, the circulating current and the parallel field at large distances r film decrease only as 1 r and the perpendicular field as 1 r and the vortex core has a larger radius 12film 2 ; 1 3 Pearl 1964, 1966, Fetter and Hohenberg 1967 ; . The coherence length and magnetic penetration depth of the GL theory depend on the temperature T and diverge at Tc as.

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Isthmus to expose the ciliated epithelium and cut into small pieces and placed in a vial containing the extraction media. Procedure I When basal bodies with cilia attached are to be isolated, the extraction solution should consist of 0 .25 M sucrose, 0 .02 M Hepes pH 7 .5, 0 .001 M EDTA, 0 .025 M KC1, and 0 .05% Triton X-100 Rohm and Haas Co ., Philadelphia, Pa . ; . The vials are agitated for 2 min on a Vortex mixer Scientific Industries, Inc ., Queens Village, N . Y. ; every 5 min for 30 min . The tissue is removed from the vial and the solution is centrifuged at 600 g for 10 min . The pellet contains basal bodies with cilia, nuclei, and a little adherent cytoplasm . Procedure II When unciliated basal bodies are to be isolated, the oviduct must be exposed to conditions which will remove the cilia from the cell . The pieces of oviduct are placed in a media composed of 0 .25 M sucrose, 0 .02 A1 Pipes pH 5 0 .02 M CaC12, and 0 .05% Triton X-100 . The vials are agitated continuously for 15 min . The cilia can be collected if the solution is centrifuged at 20, 000 g for 30 min. After the deciliation process, the basal bodies are isolated by the same process as in procedure I . To partially purify the basal bodies or basal bodies with cilia attached, the 600-g pellet is resuspended in 3 ml sucrose buffered with 0 .02 M Hepes pH 6 .5. This mixture is placed in a 5-ml centrifuge tube, and a solution of 0 .25 M sucrose, 0 .02 M Hepes pH 6 .5, 0 .01 M CaC12, and 0 .025 ?M KCl is layered over the sucrose to fill the tube, which is then centrifuged at 40, 000 g for 1 .5 h Under these conditions, the nuclei form a pellet and the cortices which contain the basal bodies collect at the interface of the two solutions . The purified cortices are collected and centrifuged at 600g for 10 min . Approximately 5-7 mg dry weight of unciliated cortices per gram wet weight of oviduct can be isolated with this technique . For transmission electron microscopy procedures, the pellets were fixed in 0 .02 M collidine, 0 .05 M Hepes buffered 0 .38% glutaraldehyde pH 7 .2 for 10 min . After being washed in 1 % Na cacodylate, the pellets were postfixed with 1 % osmium tetroxide and embedded in Araldite Ciba Products Co ., Summit, N . J . ; Sections were cut on a Porter-Blum MT-2B and viewed with a Philips 200 electron microscope . The fixation procedure was the same for scanning electron microscopy, except that the fixed specimens were then dehydrated in ethanol and passed through various concentrations of Freon TF E . Pont de Nemours of Co ., Inc ., Wilmington, Del . ; and finally into pure Freon. They were then critically point dried and acamprosate.

Tissues 0.51.0 g of FW ; were extracted on ice with 3 vol of 100 mmol liter potassium phosphate buffer pH 7.5, buffer A ; , containing 5 mmol liter EDTA, 10 mmol liter mercaptoethanol, 0.5% sodium ascorbate, and 2% polyethyleneglycol 400, followed by centrifugation at 27, 000 g for 30 min. The supernatant was loaded onto a Sephadex G25 prepacked PD-10 column Amersham Pharmacia Biotech ; equilibrated and eluted with 50 mmol liter potassium phosphate buffer pH 8, buffer B ; containing 1 mmol liter EDTA and 5 mmol liter mercaptoethanol. The reactions were performed by incubating 100 l of the purified supernatant with 20 l of mmol liter putrescine final concentration: 3.6 mmol liter ; , 8 l of mmol liter S-adenosylmethionine final concentration: 0.6 mmol liter ; and 12 l of buffer B at 37C for 30 min. After stopping the reactions by heating in boiling water, 65 mmol liter borate-KOH buffer and a solution of dansylchloride 5.4 mg ml acetonitrile ; were added to the incubation mixture. After heating at 60C for 15 min, the dansylated amines were extracted by adding 0.5 ml of toluene followed by vortex mixing for 30 s. After an aliquot 400 l ; of the toluene was removed, the residue was dried and resuspended in a fixed volume of acetonitrile, which was then injected into the HPLC. The chromatographic conditions for the separation of dansylated N-methylputrescine were as described before 29 ; . The retention time of N-methylputrescine was 24 min. H6H enzymatic activity was assayed by using GLC by measuring the formation of 6 -hydroxyhyoscyamine or scopolamine 8 ; . Subsequent extraction of the reaction products and the conditions for GLC analysis were as described by Hashimoto and Yamada 9 ; . hyoscyamine and scopolamine ; was based essentially on the method described by Hashimoto et al. 13 ; and analyzed by HPLC as described 30 ; . Pyridine alkaloid nicotine ; was extracted from hairy root cultures with 25 mmol liter sodium phosphate buffer pH 7.8 ; at 30C for 24 h with constant agitation and analyzed by HPLC by using a mobile phase of 40% methanol containing 0.2% phosphoric acid buffered to pH 7.25 with triethylamine. Standards for hyoscyamine, scopolamine, and nicotine Sigma ; were prepared in methanol at a final concentration of 1 mg ml. Results and Discussion Three plasmids, pBMI, pLAL21, and pXI, containing the expression cassettes of the cDNAs encoding pmt and h6h, separately or together Fig. 2 A ; , were separately introduced into H. niger leaf explants by using disarmed A. tumefaciens C58C1 strain and A. rhizogenes LBA9402. The abbreviations P, H, and T refer to the transgenic hairy root lines generated from pmt single gene-, h6h single gene-, and pmt h6h double gene-transformations, respectively. Hairy root lines generated from transformations with strains A4 and LBA9402 containing no pmt or h6h are denoted as A4 and LBA, respectively. In total, 41 P, 50 H, and.

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