Search Results - (Author, Cooperation:A. Leonard)
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1Annetta, Leonard A. [Sonstige] ; Minogue, James [Sonstige]
Cham : Springer International Publishing
Published 2016Staff View Availability LinksPerson(s): Annetta, Leonard A. [Sonstige]; Minogue, James [Sonstige]Type of Medium: Online ResourcePages: 1 Online-Ressource (XI, 385 p. 75 illus)Edition: 1st ed. 2016ISBN: 9783319163994Series Statement: Contemporary Trends and Issues in Science Education 44URL: DOI: Language: English -
2Annetta, Leonard A. [Herausgeber] ; Minogue, James [Herausgeber]
Cham ; Heidelberg ; New York ; Dordrecht ; London : Springer
Published 2016Staff View Availability LinksPerson(s): Annetta, Leonard A. [Herausgeber]; Minogue, James [Herausgeber]Type of Medium: BookPages: XI, 385 Seiten :, Illustrationen, DiagrammeISBN: 9783319163987Series Statement: Contemporary trends and issues in science education Vol. 44URL: Language: English -
3Iva Lu D;ić, Manoȷ K. Rathinaswamy, Linda Truebestein, David J. Hamelin, John E. Burke, Thomas A. Leonard
National Academy of Sciences
Published 2018Staff ViewPublication Date: 2018-04-25Publisher: National Academy of SciencesPrint ISSN: 0027-8424Electronic ISSN: 1091-6490Topics: BiologyMedicineNatural Sciences in GeneralPublished by: -
4Staff View
Publication Date: 2018-07-04Publisher: National Academy of SciencesPrint ISSN: 0027-8424Electronic ISSN: 1091-6490Topics: BiologyMedicineNatural Sciences in GeneralKeywords: LettersPublished by: -
5Staff View
Publication Date: 2018-03-07Publisher: Institute of Physics Publishing (IOP)Electronic ISSN: 1748-0221Topics: PhysicsPublished by: -
6O. Thalmann ; B. Shapiro ; P. Cui ; V. J. Schuenemann ; S. K. Sawyer ; D. L. Greenfield ; M. B. Germonpre ; M. V. Sablin ; F. Lopez-Giraldez ; X. Domingo-Roura ; H. Napierala ; H. P. Uerpmann ; D. M. Loponte ; A. A. Acosta ; L. Giemsch ; R. W. Schmitz ; B. Worthington ; J. E. Buikstra ; A. Druzhkova ; A. S. Graphodatsky ; N. D. Ovodov ; N. Wahlberg ; A. H. Freedman ; R. M. Schweizer ; K. P. Koepfli ; J. A. Leonard ; M. Meyer ; J. Krause ; S. Paabo ; R. E. Green ; R. K. Wayne
American Association for the Advancement of Science (AAAS)
Published 2013Staff ViewPublication Date: 2013-11-16Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: Animals ; Animals, Domestic/*genetics ; Base Sequence ; Breeding ; Dogs/*genetics ; Europe ; Genome, Mitochondrial/*genetics ; Molecular Sequence Data ; Phylogeny ; Wolves/geneticsPublished by: -
7F. Hailer ; V. E. Kutschera ; B. M. Hallstrom ; S. R. Fain ; J. A. Leonard ; U. Arnason ; A. Janke
American Association for the Advancement of Science (AAAS)
Published 2013Staff ViewPublication Date: 2013-09-18Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: Animals ; *Biological Evolution ; *Genome ; *Multilocus Sequence Typing ; Ursidae/*geneticsPublished by: -
8F. Hailer ; V. E. Kutschera ; B. M. Hallstrom ; D. Klassert ; S. R. Fain ; J. A. Leonard ; U. Arnason ; A. Janke
American Association for the Advancement of Science (AAAS)
Published 2012Staff ViewPublication Date: 2012-04-21Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: Animals ; Bayes Theorem ; *Biological Evolution ; Cell Nucleus/genetics ; DNA, Mitochondrial/genetics ; Gene Flow ; Genetic Speciation ; Genetic Variation ; *Genome ; Haplotypes ; Hybridization, Genetic ; Molecular Sequence Data ; *Multilocus Sequence Typing ; Phylogeny ; Ursidae/classification/*geneticsPublished by: -
9A. J. Westphal ; R. M. Stroud ; H. A. Bechtel ; F. E. Brenker ; A. L. Butterworth ; G. J. Flynn ; D. R. Frank ; Z. Gainsforth ; J. K. Hillier ; F. Postberg ; A. S. Simionovici ; V. J. Sterken ; L. R. Nittler ; C. Allen ; D. Anderson ; A. Ansari ; S. Bajt ; R. K. Bastien ; N. Bassim ; J. Bridges ; D. E. Brownlee ; M. Burchell ; M. Burghammer ; H. Changela ; P. Cloetens ; A. M. Davis ; R. Doll ; C. Floss ; E. Grun ; P. R. Heck ; P. Hoppe ; B. Hudson ; J. Huth ; A. Kearsley ; A. J. King ; B. Lai ; J. Leitner ; L. Lemelle ; A. Leonard ; H. Leroux ; R. Lettieri ; W. Marchant ; R. Ogliore ; W. J. Ong ; M. C. Price ; S. A. Sandford ; J. A. Sans Tresseras ; S. Schmitz ; T. Schoonjans ; K. Schreiber ; G. Silversmit ; V. A. Sole ; R. Srama ; F. Stadermann ; T. Stephan ; J. Stodolna ; S. Sutton ; M. Trieloff ; P. Tsou ; T. Tyliszczak ; B. Vekemans ; L. Vincze ; J. Von Korff ; N. Wordsworth ; D. Zevin ; M. E. Zolensky
American Association for the Advancement of Science (AAAS)
Published 2014Staff ViewPublication Date: 2014-08-16Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsPublished by: -
10S. F. Leiser ; H. Miller ; R. Rossner ; M. Fletcher ; A. Leonard ; M. Primitivo ; N. Rintala ; F. J. Ramos ; D. L. Miller ; M. Kaeberlein
American Association for the Advancement of Science (AAAS)
Published 2015Staff ViewPublication Date: 2015-11-21Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: Animals ; Basic Helix-Loop-Helix Transcription Factors/metabolism ; Caenorhabditis elegans/genetics/metabolism/*physiology ; Caenorhabditis elegans Proteins/chemistry/genetics/metabolism/*physiology ; Diet ; Intestines/*enzymology ; Longevity/genetics/*physiology ; Mice ; Neurons/*metabolism ; Oxygenases/genetics/*physiology ; Protein Stability ; RNA Interference ; Receptors, Serotonin/metabolism ; Signal Transduction ; Transcription Factors/chemistry/*metabolism ; Tryptophan Hydroxylase/metabolismPublished by: -
11Opremcak, A., Pechenezhskiy, I. V., Howington, C., Christensen, B. G., Beck, M. A., Leonard, E., Suttle, J., Wilen, C., Nesterov, K. N., Ribeill, G. J., Thorbeck, T., Schlenker, F., Vavilov, M. G., Plourde, B. L. T., McDermott, R.
American Association for the Advancement of Science (AAAS)
Published 2018Staff ViewPublication Date: 2018-09-21Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyGeosciencesComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: PhysicsPublished by: -
12E. D. Lorenzen ; D. Nogues-Bravo ; L. Orlando ; J. Weinstock ; J. Binladen ; K. A. Marske ; A. Ugan ; M. K. Borregaard ; M. T. Gilbert ; R. Nielsen ; S. Y. Ho ; T. Goebel ; K. E. Graf ; D. Byers ; J. T. Stenderup ; M. Rasmussen ; P. F. Campos ; J. A. Leonard ; K. P. Koepfli ; D. Froese ; G. Zazula ; T. W. Stafford, Jr. ; K. Aaris-Sorensen ; P. Batra ; A. M. Haywood ; J. S. Singarayer ; P. J. Valdes ; G. Boeskorov ; J. A. Burns ; S. P. Davydov ; J. Haile ; D. L. Jenkins ; P. Kosintsev ; T. Kuznetsova ; X. Lai ; L. D. Martin ; H. G. McDonald ; D. Mol ; M. Meldgaard ; K. Munch ; E. Stephan ; M. Sablin ; R. S. Sommer ; T. Sipko ; E. Scott ; M. A. Suchard ; A. Tikhonov ; R. Willerslev ; R. K. Wayne ; A. Cooper ; M. Hofreiter ; A. Sher ; B. Shapiro ; C. Rahbek ; E. Willerslev
Nature Publishing Group (NPG)
Published 2011Staff ViewPublication Date: 2011-11-04Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsKeywords: Animals ; Bayes Theorem ; *Biota ; Bison ; Climate Change/*history ; DNA, Mitochondrial/analysis/genetics ; Europe ; *Extinction, Biological ; Fossils ; Genetic Variation ; Geography ; History, Ancient ; Horses ; Human Activities/*history ; Humans ; Mammals/genetics/*physiology ; Mammoths ; Molecular Sequence Data ; Population Dynamics ; Reindeer ; Siberia ; Species Specificity ; Time FactorsPublished by: -
13Luhby, A. Leonard ; Cooperman, Jack M ; Lopez, Rafael ; Giorgio, Anthony J.
Oxford, UK : Blackwell Publishing Ltd
Published 1969Staff ViewISSN: 1749-6632Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: Natural Sciences in GeneralType of Medium: Electronic ResourceURL: -
14Kreikemeyer, Bernd ; Boyle, Michael D. P. ; Buttaro, Bettina A. Leonard ; Heinemann, Markus ; Podbielski, Andreas
Oxford, UK : Blackwell Science Ltd
Published 2001Staff ViewISSN: 1365-2958Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: BiologyMedicineNotes: A novel growth phase-associated two-component-type regulator, Fas (fibronectin/fibrinogen binding/haemolytic activity/streptokinase regulator), of Streptococcus pyogenes was identified in the M1 genome sequence, based on homologies to the histidine protein kinase (HPK) and response regulator (RR) part of the Staphylococcus aureus Agr and Streptococcus pneumoniae Com quorum-sensing systems. The fas operon, present in all 12 tested M serotypes, was transcribed as polycystronic message (fasBCA) and contained genes encoding two potential HPKs (FasB and FasC) and one RR (FasA). Downstream of fasBCA, we identified a small 300 nucleotide monocistronic transcript, designated fasX, that did not appear to encode true peptide sequences. Measurements of luciferase promoter fusions revealed a growth phase-associated transcription of fasBCA and fasX, with peak activities during the late exponential phase. Insertional mutagenesis disrupting fasBCA and fasA led to a phenotype similar to agr-null mutations in S. aureus, with prolonged expression of extracellular matrix protein-binding adhesins and reduced expression of secreted virulence factors such as streptokinase and streptolysin S. In addition, fasX transcription was dependent on the RR FasA; however, deletion mutagenesis of fasX resulted in a similar phenotype to that of the fasBCA or fasA mutants. Complementation of the fasX deletion mutant, with the fasX gene expressed in trans from a plasmid, restored the wild-type fasBCA regulation pattern. This strongly suggested that fasX, a putative non-translated RNA, is the main effector molecule of the fas regulon. However, using spent culture supernatants from wild-type and fas mutant strains, we were not able to show an influence on the logarithmic growth phase expression of fas and dependent genes. Thus, despite structural and functional similarities between fas and agr, to date the fas operon appears not to be involved in group A streptococcal (GAS) quorum-sensing regulation.Type of Medium: Electronic ResourceURL: -
15SHEFFNER, A. LEONARD ; ADACHI, RICHARD ; SPECTOR, HARRY
Oxford, UK : Blackwell Publishing Ltd
Published 1957Staff ViewISSN: 1750-3841Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, NutritionProcess Engineering, Biotechnology, Nutrition TechnologyType of Medium: Electronic ResourceURL: -
16Kartner, Norbert ; Augustinas, Olga ; Jensen, Timothy J. ; Naismith, A. Leonard ; Riordan, John R.
[s.l.] : Nature Publishing Group
Published 1992Staff ViewISSN: 1546-1718Source: Nature Archives 1869 - 2009Topics: BiologyMedicineNotes: [Auszug] Misprocessing and mislocalization of the cystic fibrosis (CF) transmembrane conductance regulator (CFTR) has been described for the major CF–causing mutation (ΔF508) in heterologous expression systems in vitro. We have generated monoclonal antibodies (mAbs) to CFTR with the aim of ...Type of Medium: Electronic ResourceURL: -
17CAMPBELL, DONALD T. ; MILLER, NORMAN ; DIAMOND, A. LEONARD
Provincetown, Mass., etc. : Periodicals Archive Online (PAO)
Published 1960Staff ViewISSN: 0022-1309Topics: PsychologyURL: -
18Staff View
ISSN: 1476-4687Source: Nature Archives 1869 - 2009Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsNotes: [Auszug] These results confirmed previous ones which indicated that adaptation to the utilization of galactose is not concerned with oxidation or fermentation as such, but rather with an enzyme or series of enzymes which make galactose available to the cell for subsequent oxidation or fermentation1. Since ...Type of Medium: Electronic ResourceURL: -
19Podbielski, Andreas ; Woischnik, Markus ; Kreikemeyer, Bernd ; Bettenbrock, Katja ; Buttaro, Bettina A. (Leonard)
Springer
Published 1999Staff ViewISSN: 1432-1831Keywords: Key wordsStreptococcus pyogenes ; Group A streptococci ; Cysteine protease ; SpeB ; Virulence factorSource: Springer Online Journal Archives 1860-2000Topics: MedicineNotes: Abstract Group A streptococcal (GAS) cysteine protease is a major virulence factor involved in the pathogenesis of purulent and invasive infections. The secreted enzyme cleaves a number of different bacterial and host proteins which could contribute to different stages of the infective processes. It has been proposed that, among these functions, SpeB plays a role in obtaining nutrients during late growth phases. In the present study, speB mutants of various GAS serotypes were found to exhibit unaltered growth characteristics in several complex and chemically defined media (CDM). When amino acid-depleted CDM was prepared, neither SpeB activity on whole proteins added to the medium during incubation nor the addition of SpeB-digested proteins was able to support bacterial growth. SpeB also was unable to liberate iron from iron-containing protein sources added to iron-deficient CDM. However, SpeB levels in culture supernatants changed in response to the protein and glucose content of the media. Using a speB promoter-luciferase reporter, speB expression levels were found to correspond to peptide concentrations in the culture media. The effect appeared to be specific for peptides since addition of peptides derived from various proteins had an affect on expression, while addition of the whole proteins had no effect. Addition of glucose to CDM had no effect on speB expression, while glucose addition to complex medium decreased speB expression. Overall, SpeB did not appear to be directly involved in providing the bacteria with nutritional factors but expression of the speB gene responded to ratios of peptides and carbohydrates in the culture medium.Type of Medium: Electronic ResourceURL: -
20Agunod, Mona ; Yamaguchi, Nobuo ; Lopez, Rafael ; Luhby, A. Leonard ; Glass, George B. Jerzy
Springer
Published 1969Staff ViewISSN: 1573-2568Source: Springer Online Journal Archives 1860-2000Topics: MedicineNotes: Abstract The developmental patterns of secretion of hydrochloric acid, pepsin, and intrinsic factor were studied, following Histalog stimulation, in gastric juice of infants 12 hr to 3 months old. In the first day of life, the outputs of hydrochloric acid, intrinsic factor, and pepsin were very low, but in no instance was achlorhydria found. The outputs of these three glandular secretory components then showed a gradual increase until the third week after birth, followed by a short decline in the third to fourth week, and a second sustained rise continuing into the second and third month of life. A good correlation was observed between the outputs of hydrochloric acid and intrinsic factor in gastric juice of the neonate following Histalog stimulation; and a somewhat poorer correlation between that of intrinsic factor and pepsin. When secretory outputs were recalculated for body weight, those of intrinsic factor in infants 2–3 months old were at levels comparable to that observed in older children and adults; those of hydrochloric acid, at the lower range of normal, or slightly below adult levels; and that of pepsin, well below adult values. On serial determinations, one infant showed intrinsic-factor activity, throughout the period of study, that was well below that of other infants of comparable age. The possible relationship of this case to juvenile pernicious anemia is discussed.Type of Medium: Electronic ResourceURL: