22,019 research outputs found
Mineralogie oder Mineralreich
No full textJohann Gottschalk Wallerius ; ins Deutsche übersezt von Johann Daniel Dens
Hydrologie oder Wasserreich
No full textJohann Gottschalk Wallerius ; ins Deutsche übersetzt von Johann Daniel Dens
Society of Composers Region VI Conference - Concert 7 Saturday, February 11, 2006 11:00 a.m. Edythe Bates Old Recital Hall and Grand Organ
No full textProgram: Whisper Wall / Drew Baker -- Valediction / Daniel Perttu -- Hibakusha / Aaron Alon -- UtQueant Laxis / Arthur Gottschalk -- Splitivef / Brian Allen -- Autumn Moon / Stuart Hinds -- O Vos Omnes / Frank LaRocca -- since feeling is first / Christopher Coleman -- Shabbat Shalom / Malcolm Rector.No program is available for this performance. No performer information available
Mineralogie, oder Mineralreich
No full textvon ihm eingeteilt und beschrieben ; ins Deutsche übersetzt von Johann Daniel Denso ...Originaltitel: Mineralogia, eller mineral-rike
Growth temperature-dependent activity of glycerol dehydratase in Escherichia coli expressing the Citrobacter freundii dha regulon
No full textUsing the cosmid pWE15, a genomic library of Citrobacter freundii DNA in Escherichia coli ECL707 was prepared and screened for glycerol utilization. Six out of approximately 3000 clones were positive. One clone, harboring the recombinant cosmid pRD1, expressed glycerol dehydratase in high activity when grown at 28 degrees C but not at 37 degrees C. The growth temperature had little effect on the activity of the other enzymes encoded by the dha regulon. When the glycerol-containing medium was supplemented with corrinoids, the recombinant E. coli strain produced 1,3-propanediol in high amounts at 28 degrees C.Using the cosmid pWE15, a genomic library of Citrobacter freundii DNA in Escherichia coli ECL707 was prepared and screened for glycerol utilization. Six out of approximately 3000 clones were positive. One clone, harboring the recombinant cosmid pRD1, expressed glycerol dehydratase in high activity when grown at 28°C but not at 37°C. The growth temperature had little effect on the activity of the other enzymes encoded by the dha regulon. When the glycerol-containing medium was supplemented with corrinoids, the recombinant E. coli strain produced 1,3-propanediol in high amounts at 28°C
Report on Meteorological Research March 1, 1935 (m-1)
No full textThe object of the report was to elucidate in detail the various features of the research program in meteorology being carried on at the Daniel Guggenheim Airship Institute in Akron, Ohio. Mr. L. J. Fangman, of the U.S. Weather Bureau, was collaborating with the author in carrying out work such as a study of autographic records of the various meteorological elements during frontal passages with a view to the possible prediction of the intensity of the accompanying disturbance as it may affect the operation of aircraft and a study of atmospheric gustiness with a view to finding the dependence between frequency end amplitude of velocity fluctuations and the vertical temperature and velocity gradients
(Fourth) Report on Meteorological Activities at the DGAI (8-1-36)(Weather Bureau Copy)
No full textThis report is on the investigations of frontal phenomena at the Daniel Guggenheim Airship Institute in Akron, Ohio from January 1, 1935 through August 1, 1936. The investigation was carried out with the cooperation of the U.S. Bureau of Aeronautics, the U.S. Weather Bureau, the California Institute of Technology, and the Guggenheim Airship Institute. Mr. R.C. Robinson of the Weather Bureau cooperated with the author in carrying out the investigation. The object of the investigation was to determine the intensity of the atmospheric disturbances (i.e. rapidity of wind shift and gustiness) accompanying the passage of cold fronts, along with a study of the characteristics of the air masses involved and other features which might affect the intensity of the disturbance. The report treated thirty cold fronts which passed the station during 1935 to 1936
Archives and Images as Repositories of Time, Language, and Forms from the Past: A Conversation with Daniel Eisenberg
No full textCloning, sequencing, and overexpression of the genes encoding coenzyme B12-dependent glycerol dehydratase of Citrobacter freundii
No full textThe genes encoding coenzyme B12-dependent glycerol dehydratase of Citrobacter freundii were cloned and overexpressed in Escherichia coli. The B12-free enzyme was purified to homogeneity. It consists of three types of subunits whose N-terminal sequences are in accordance with those deduced from the open reading frames dhaB, dhaC, and dhaE, coding for subunits of 60,433 (alpha), 21,487 (beta), and 16,121 (gamma) Da, respectively. The enzyme complex has the composition alpha2beta2gamma2. Amino acid alignments with the subunits of the recently sequenced diol dehydratase of Klebsiella oxytoca (T. Tobimatsu, T. Hara, M. Sakaguchi, Y. Kishimoto, Y. Wada, M. Isoda, T. Sakai, and T. Toraya, J. Biol. Chem. 270:7142-7148, 1995) revealed identities between 51.8 and 70.9%
Isolation of a new Thermoanaerobacterium thermosaccharolyticum strain (FH1) producing a thermostable dextranase
No full textA Gram-positive spore-forming thermophilic strict anaerobic bacterium, designated FH1, was isolated from enrichments at 65 degreesC with dextran as sole carbon and energy source. A sequence analysis of the 16S rRNA gene revealed 99.2% identity of FH1 to Thermoanaerobacterium thermosaccharolyticum. Furthermore, the substrate spectra of both organisms were similar. It was therefore concluded that FH1 represents a new strain within the species T thermosaccharolyticum. The optimal growth temperature of strain FH1 was 68 degreesC. The isolated organism produced a thermostable and thermoactive dextranase with a native molecular mass of approximately 200,000 Da. The enzyme was concentrated from the cell-free culture supernatant by ammonium sulfate precipitation. The resulting crude dextranase exhibited optimal activity from 65 to 70 degreesC and a pH optimum of 5.5
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