Search Results - (Author, Cooperation:J. F. Smith)
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1Latest Papers from Table of Contents or Articles in PressJ. Khuyagbaatar, H. M. David, D. J. Hinde, I. P. Carter, K. J. Cook, M. Dasgupta, Ch. E. Düllmann, D. Y. Jeung, B. Kindler, B. Lommel, D. H. Luong, E. Prasad, D. C. Rafferty, C. Sengupta, C. Simenel, E. C. Simpson, J. F. Smith, K. Vo-Phuoc, J. Walshe, A. Wakhle, E. Williams, and A. Yakushev
American Physical Society (APS)
Published 2018Staff ViewPublication Date: 2018-06-29Publisher: American Physical Society (APS)Print ISSN: 0556-2813Electronic ISSN: 1089-490XTopics: PhysicsKeywords: Nuclear ReactionsPublished by: -
2Latest Papers from Table of Contents or Articles in PressM. R. Miller ; N. Mannowetz ; A. T. Iavarone ; R. Safavi ; E. O. Gracheva ; J. F. Smith ; R. Z. Hill ; D. M. Bautista ; Y. Kirichok ; P. V. Lishko
American Association for the Advancement of Science (AAAS)
Published 2016Staff ViewPublication Date: 2016-03-19Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: Adult ; Animals ; Arachidonic Acids/*deficiency ; Calcium/metabolism ; Calcium Channels/metabolism ; Calcium Signaling ; Cell Membrane/metabolism ; Endocannabinoids/*deficiency ; Fertilization ; Glycerides/*deficiency ; Humans ; Hydrolases/genetics/*metabolism ; Male ; Mice ; Mice, Inbred C57BL ; Progesterone/*metabolism/pharmacology ; Rats ; Rats, Wistar ; Receptors, Progesterone/genetics/*metabolism ; Sperm Motility/drug effects/*physiology ; Spermatozoa/drug effects/metabolism/*physiology ; Young AdultPublished by: -
3Articles: DFG German National LicensesMueller, F. M. ; Johnson, K. A. ; Medina, W. J. ; Lewis, H. D. ; Phillips, D. S. ; Hundley, M. F. ; Thompson, J. D. ; Fisk, Z. ; Jacobson, L. A. ; Maggiore, C. J. ; Smith, J. F. ; Honig, E. M. ; Gordon, W. L. ; Schirber, J. E. ; Kossowsky, R.
Woodbury, NY : American Institute of Physics (AIP)
Published 1990Staff ViewISSN: 1077-3118Source: AIP Digital ArchiveTopics: PhysicsNotes: It is shown that in the vicinity of 77 K beryllium has a superior specific conductance compared with the nominally excellent metallic conductors aluminum and copper. It is concluded that beryllium should be considered for some conduction applications, despite its well known toxicity problems.Type of Medium: Electronic ResourceURL: -
4Articles: DFG German National LicensesNastasi, M. ; Tesmer, J. R. ; Hollander, M. G. ; Smith, J. F. ; Maggiore, C. J.
Woodbury, NY : American Institute of Physics (AIP)
Published 1988Staff ViewISSN: 1077-3118Source: AIP Digital ArchiveTopics: PhysicsNotes: We have fabricated superconducting thin films by ion implanting Y into a base material formed by the coevaporation of BaF2 and Cu. The implantations were carried out at 77 K and resulted in the formation of an amorphous Y-Ba-Cu-F surface layer. Oxygen annealing with the addition of water vapor renders the base material insulating with a room-temperature resistance of 105 Ω. An identical annealing treatment on the Y-implanted material produces a superconductor with an onset temperature of 85 K.Type of Medium: Electronic ResourceURL: -
5Articles: DFG German National LicensesWillis, J. O. ; Cooke, D. W. ; Brown, R. D. ; Cost, J. R. ; Smith, J. F. ; Smith, J. L. ; Aikin, R. M. ; Maez, M.
Woodbury, NY : American Institute of Physics (AIP)
Published 1988Staff ViewISSN: 1077-3118Source: AIP Digital ArchiveTopics: PhysicsNotes: Sintered samples of EuBa2Cu3Ox and GdBa2Cu3Ox with x(approximately-equal-to)7 have been irradiated at 90 °C with 800 MeV protons. The superconducting transition temperature decreases 1.7 K/1017 pcm−2 for both materials. The critical magnetization current density, characterizing intragranular conduction, increases a factor of 3 at zero field and relatively larger factors for finite magnetic fields at 7 and 75 K for fluences on the order of 1017 pcm−2. No and only minor differences between irradiated and unirradiated specimens were seen in calorimetric and transmission electron microscopy analyses, respectively.Type of Medium: Electronic ResourceURL: -
6Articles: DFG German National LicensesGreiner, J. D. ; Beaudry, B. J. ; Smith, J. F.
[S.l.] : American Institute of Physics (AIP)
Published 1987Staff ViewISSN: 1089-7550Source: AIP Digital ArchiveTopics: PhysicsNotes: The elastic constants of a well-characterized, high-purity single crystal were measured before and after hydrogen was added to change the hydrogen content from 500 at. ppm (3 wt. ppm) to 6900 at. ppm (40 wt. ppm). Comparison between the two sets of measurements shows that such a small change in hydrogen content has a disproportionately large effect on the elastic stiffness. In this case the increase in hydrogen content produced an increase in all directly measured elastic constants by the order of 0.5%. Further comparison of our data with earlier data indicates that other interstitial elements (e.g., C, N, and O) may also exert an inordinately large influence on the elastic stiffness.Type of Medium: Electronic ResourceURL: -
7Articles: DFG German National LicensesCooke, D. W. ; Bennett, B. L. ; Farnum, E. H. ; Hults, W. L. ; Sickafus, K. E. ; Smith, J. F. ; Smith, J. L. ; Taylor, T. N. ; Tiwari, P. ; Portis, A. M.
Woodbury, NY : American Institute of Physics (AIP)
Published 1996Staff ViewISSN: 1077-3118Source: AIP Digital ArchiveTopics: PhysicsNotes: Measurements of hydrogen loss and luminescence as a function of annealing temperature in porous silicon suggest that luminescence is attributable to electron-hole recombination in SiOx surface layers with an intensity that is dependent upon the surface hydrogen content. The luminescence is composed of three Gaussian bands similar to those found in amorphous SiO2. X-ray photoelectron spectroscopy and scanning electron microscopy show porous silicon has SiOx on the surface, which is comprised of many particles of about 10 nm size. Collectively, the data strongly support the previously proposed quantum confinement/luminescence center model. © 1996 American Institute of Physics.Type of Medium: Electronic ResourceURL: -
8Articles: DFG German National LicensesFoltyn, S. R. ; Jia, Q. X. ; Arendt, P. N. ; Kinder, L. ; Fan, Y. ; Smith, J. F.
Woodbury, NY : American Institute of Physics (AIP)
Published 1999Staff ViewISSN: 1077-3118Source: AIP Digital ArchiveTopics: PhysicsNotes: During the development of YBa2Cu3O7−δ (YBCO) coatings on flexible metal tapes, it has become evident that the achievable critical current (Ic) reaches a maximum value of about 200 A per cm of conductor width at a coating thickness of 1–2 μm. Additional YBCO beyond this thickness can actually reduce Ic. To investigate, critical current density (Jc) has been measured for samples with YBCO ranging from 0.39 to 6.3 μm in thickness. Several films were thinned by ion milling and remeasured with two significant results: almost no supercurrent is carried at thickness levels above 2 μm; and for films thicker than 3 μm, Jc is drastically reduced near the substrate as well. © 1999 American Institute of Physics.Type of Medium: Electronic ResourceURL: -
9Articles: DFG German National LicensesJia, Q. X. ; Foltyn, S. R. ; Arendt, P. N. ; Smith, J. F.
Woodbury, NY : American Institute of Physics (AIP)
Published 2002Staff ViewISSN: 1077-3118Source: AIP Digital ArchiveTopics: PhysicsNotes: We have developed a multilayer architecture to enhance the supercurrent carrying capability of thick (〉1 μm) YBa2Cu3O7−x (YBCO) films. An interlayer of CeO2, which functions as a starting template for growth of subsequent high-quality YBCO layers, is used to prohibit the generation of microstructural defects that otherwise develop in the top region of thick YBCO films. Improved surface quality for a 3.3 μm thick YBCO film has been confirmed by the channeling data of Rutherford backscattering spectroscopy and by scanning electron microscopy. Compared to our routinely prepared single-layer YBCO thick film in which the supercurrent drops rapidly with increasing film thickness, this multilayer makes it possible to maintain critical current density over 1 MA/cm2 with less restrictions on the thickness of coated conductors. © 2002 American Institute of Physics.Type of Medium: Electronic ResourceURL: -
10Articles: DFG German National LicensesCRUSE, J. P. ; EDWARDS, D. A. W. ; SMITH, J. F. ; WYLLIE, J. H.
Oxford, UK : Blackwell Publishing Ltd
Published 1979Staff ViewISSN: 1365-2559Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: MedicineNotes: The paper describes the changes in the cricopharyngeal muscle in seven cases of dysphagia resulting from obstruction at this level which was relieved by myotomy. Histological features included degeneration and regeneration in the muscle fibres with interstitial fibrosis which was severe in some of the cases. It is considered that this restrictive fibrosis is the cause of the dysphagia and that it is secondary to muscle fibre damage, the cause of which is at present obscure. Minor degrees of muscle damage and regeneration were seen rarely in controls and fibrosis was never present. There was no evidence of underlying vascular or neurological disease in six cases; the seventh had a previous history of scleroderma but this was not thought to be the cause of the cricopharyngeal lesion. The age incidence ranged from 1 to 5 years at the onset of dysphagia; in six of the seven it was 50 years or more.Type of Medium: Electronic ResourceURL: -
11Articles: DFG German National LicensesStaff View
ISSN: 1365-2133Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: MedicineType of Medium: Electronic ResourceURL: -
12Articles: DFG German National LicensesBROWN, F. ; HUGHES, E. D. ; INGOLD, C. K. ; SMITH, J. F.
[s.l.] : Nature Publishing Group
Published 1951Staff ViewISSN: 1476-4687Source: Nature Archives 1869 - 2009Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsNotes: [Auszug] IT has been established1 that the Wagner rearrangement is a form of unimolecular nucleophilic substitution or elimination (Syl, El) ; its primary step is that of all such unimolecular reactions, namely, a heterolysis with the production of a carbonium ion. Let us, for present convenience, call the ...Type of Medium: Electronic ResourceURL: -
13Articles: DFG German National LicensesStaff View
ISSN: 1476-4687Source: Nature Archives 1869 - 2009Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsNotes: [Auszug] FROM a consideration of the thermodynamics of gas-liquid chromatography it may be deduced that the logarithm of specific retention volume1 will be a linear function of the reciprocal of the absolute temperature, namely: logic 10 Vg= A + B/T (1) , where B is equal to -Ha/R.In10 provided ΔH8 (the ...Type of Medium: Electronic ResourceURL: -
14Articles: DFG German National LicensesStaff View
ISSN: 1476-4687Source: Nature Archives 1869 - 2009Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsNotes: [Auszug] We are studying the effect of chelating agents on the metal-catalysed autoxidation of cyofohexene. Only in the case of copper has the metal chelate complex been found to be catalytically inactive. In the case of iron, the formation of the chelate complex greatly increased the rate of the reaction. ...Type of Medium: Electronic ResourceURL: -
15Articles: DFG German National LicensesBANKS, G. L. ; CHALK, A. J. ; DAWSON, J. E. ; SMITH, J. F.
[s.l.] : Nature Publishing Group
Published 1954Staff ViewISSN: 1476-4687Source: Nature Archives 1869 - 2009Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsNotes: [Auszug] The special case of the autoxidation of natural and certain synthetic rubbers takes place under conditions which are essentially non-polar. That marked differences in behaviour might occur as between polar and non-polar media has prompted this investigation. We have studied the autoxidation of ...Type of Medium: Electronic ResourceURL: -
16Articles: DFG German National LicensesStaff View
ISSN: 1476-4687Source: Nature Archives 1869 - 2009Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsNotes: [Auszug] The small, but measurable, solubility of these gases in organic solvents and the adsorptive effects of solid powders such as are used for supports have prompted me to check the validity of these assertions. It has in consequence been found that more or less serious errors (depending on the column ...Type of Medium: Electronic ResourceURL: -
17Articles: DFG German National LicensesStaff View
ISSN: 0037-7996Topics: HistoryURL: -
18Articles: DFG German National LicensesStaff View
ISSN: 0037-7732Topics: SociologyURL: -
19Articles: DFG German National LicensesStaff View
ISSN: 1476-4687Source: Nature Archives 1869 - 2009Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsNotes: [Auszug] The retention index (/) of Kovats4 is closely related to Rxg by the following expression (ref. 2): + 9 '= where I' is J/100 and 6 the slope of the log plot for n-paraffins. I' can be interpreted as the carbon number of a hypothetical n-paraffin having the same retention as the solute to ...Type of Medium: Electronic ResourceURL: -
20Articles: DFG German National LicensesStaff View
ISSN: 1432-0533Keywords: Central Neurofibromatosis ; Tuberose Sclerosis ; Co-Existence ; Hamartoma ; Dermal NeurofibromaSource: Springer Online Journal Archives 1860-2000Topics: MedicineDescription / Table of Contents: Zusammenfassung Zentrale Neurofibromatose und tuberöse Sklerose sind genetisch distinkte Erkrankungen, führen jedoch beide zu Hamartomen der Stützzellen des ZNS und zu Mißbildungen anderer Gewebe. Ein früher als tuberöse Sklerose beschriebener Fall von zentraler Neurofibromatose wird mitgeteilt. Die wesentlichen Merkmale beider Erkrankungen werden erörtert. Frühere Berichte über ihr gemeinsames Auftreten werden kritisch revidiert und nur ein gesicherter Fall gefunden. Doppeldiagnose wurde oft infolge der unspezifischen Veränderungen beider Erkrankungen gestellt, z. B. Gliaproliferation, fibröse Hautgeschwülste; Fehldiagnose dermaler Neurofibrome oder von Adenoma sebaceum mangels histologischer Verifizierung oder Fehldeutung röntgenologischer Knochenbefunde.Notes: Summary Central neurofibromatosis and tuberose sclerosis are genetically distinct diseases but both produce hamartomas of the supporting cells of the central nervous system and malformation of other tissues. A case of central neurofibromatosis previously reported as tuberose sclerosis is presented and the distinguishing features of the two diseases reviewed. Earlier reports of their co-existence are re-examined and only one indisputable case found. Double diagnosis has frequently been made on the basis of non-specific changes common to both diseases, e. g. glial proliferation, fibrous dermal tumours; the misdiagnosis of dermal neurofibroma or adenoma sebaceum in the absence of histological proof or the misinterpretation of X-ray appearances of bone.Type of Medium: Electronic ResourceURL: