Search Results - (Author, Cooperation:N. Ryan)
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1Latest Papers from Table of Contents or Articles in PressCody L. Colleps, N. Ryan McKenzie, Daniel F. Stockli, Nigel C. Hughes, Birendra P. Singh, A. Alexander G. Webb, Paul M. Myrow, Noah J. Planavsky, Brian K. Horton
Wiley-Blackwell
Published 2018Staff ViewPublication Date: 2018-01-09Publisher: Wiley-BlackwellElectronic ISSN: 1525-2027Topics: Chemistry and PharmacologyGeosciencesPhysicsPublished by: -
2Latest Papers from Table of Contents or Articles in PressStaff View
Publication Date: 2018-02-22Publisher: BMJ PublishingElectronic ISSN: 2044-6055Topics: MedicineKeywords: Paediatrics, Open access, Health economics, Health economicsPublished by: -
3Latest Papers from Table of Contents or Articles in PressD. Nakada ; H. Oguro ; B. P. Levi ; N. Ryan ; A. Kitano ; Y. Saitoh ; M. Takeichi ; G. R. Wendt ; S. J. Morrison
Nature Publishing Group (NPG)
Published 2014Staff ViewPublication Date: 2014-01-24Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsKeywords: Animals ; Cell Count ; Cell Division/drug effects ; Erythropoiesis ; Estrogen Receptor alpha/metabolism ; Estrogens/*metabolism/pharmacology ; Female ; Hematopoietic Stem Cells/*cytology/drug effects/*metabolism ; Male ; Mice ; Ovary/drug effects/metabolism ; Pregnancy ; Sex Characteristics ; Signal Transduction/drug effects ; Spleen/cytologyPublished by: -
4FIS Bildung LiteraturdatenbankStaff View
Type of Medium: bookPublication Date: 2012Keywords: Humanistische Bildung ; Philosophie ; Augustinus, AureliusLanguage: EnglishNote: Literaturangaben -
5Latest Papers from Table of Contents or Articles in PressRyan N. Gilbreth, Vaheh Y. Oganesyan, Hamza Amdouni, Shabazz Novarra, Luba Grinberg, Arnita Barnes, Manuel Baca
The American Society for Biochemistry and Molecular Biology (ASBMB)
Published 2018Staff ViewPublication Date: 2018-06-23Publisher: The American Society for Biochemistry and Molecular Biology (ASBMB)Print ISSN: 0021-9258Electronic ISSN: 1083-351XTopics: BiologyChemistry and PharmacologyPublished by: -
6Latest Papers from Table of Contents or Articles in PressStaff View
Publication Date: 2018-01-17Publisher: National Academy of SciencesPrint ISSN: 0027-8424Electronic ISSN: 1091-6490Topics: BiologyMedicineNatural Sciences in GeneralPublished by: -
7Latest Papers from Table of Contents or Articles in PressKelsey E. Nyland; Grant E. Gunn; Nikolay I. Shiklomanov; Ryan N. Engstrom; Dmitry A. Streletskiy
MDPI Publishing
Published 2018Staff ViewPublication Date: 2018-08-05Publisher: MDPI PublishingElectronic ISSN: 2072-4292Topics: Architecture, Civil Engineering, SurveyingGeographyPublished by: -
8Articles: DFG German National LicensesSupino, Ryan N. ; Talghader, Joseph J.
Woodbury, NY : American Institute of Physics (AIP)
Published 2001Staff ViewISSN: 1077-3118Source: AIP Digital ArchiveTopics: PhysicsNotes: A technology for controlling the thermal conductivity of etch-released microstructures is proposed and demonstrated by placing test structures in and out of contact with their underlying substrate. By adjusting the duty cycle of a periodic actuation, the thermal conductivity can be adjusted linearly across a wide range. Experimental work with microfilaments in air has shown a continuous tuning range from approximately 1.7×10−4 W/K to 3.3×10−4 W/K. These numbers are limited by thermal conduction through air and thermal contact conductance, respectively. The fundamental tuning range is orders of magnitude wider, limited by radiation heat transfer and the thermal contact conductance of coated structures. © 2001 American Institute of Physics.Type of Medium: Electronic ResourceURL: -
9Articles: DFG German National LicensesPRIESTLEY-TAYLOR ALPHA COEFFICIENT: VARIABILITY AND RELATIONSHIP TO NDVI IN ARCTIC TUNDRA LANDSCAPESEngstrom, Ryan N. ; Hope, Allen S. ; Stow, Douglas A. ; Vourlitis, George L. ; Oechel, Walter C.
Oxford, UK : Blackwell Publishing Ltd
Published 2002Staff ViewISSN: 1752-1688Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: Architecture, Civil Engineering, SurveyingGeographyNotes: : Average daily values of the Priestley-Taylor coefficient (a) were calculated for two eddy covariance (flux) tower sites with contrasting vegetation, soil moisture, and temperature characteristics on the North Slope of Alaska over the 1994 and 1995 growing seasons. Because variations in a have been shown to be associated with changes in vegetation, soil moisture, and meteorological conditions in Arctic ecosystems, we hypothesized that a values would be significantly different between sites. Since variations in the normalized difference vegetation index (NDVI) follow patterns of vegetation community composition and state that are largely controlled by moisture and temperature gradients on the North Slope of Alaska, we hypothesized that temporal variations in a respond to these same conditions and thus co-vary with NDVI. Significant differences in a values were found between the two sites in 1994 under average precipitation conditions. However, in 1995, when precipitation conditions were above average, no significant difference was found. Overall, the variations in a over the two growing seasons showed little relationship to the seasonal progression of the regional NDVI. The only significant relationship was found at the drier, upland study site.Type of Medium: Electronic ResourceURL: -
10Articles: DFG German National LicensesRYAN, N. E. ; HENDERSON, F. ; JOHNSTONE, S. T. M. ; WAIN, H. L.
[s.l.] : Nature Publishing Group
Published 1957Staff ViewISSN: 1476-4687Source: Nature Archives 1869 - 2009Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsNotes: [Auszug] A considerable disadvantage of this process from certain points of view is the low current efficiency (6-12 per cent) resulting from the high operating temperature. One method of overcoming this deficiency is to replace the sulphate radical in the bath by fluoride as the active anion catalyst. Thus ...Type of Medium: Electronic ResourceURL: -
11Articles: DFG German National LicensesStaff View
ISSN: 0165-0327Keywords: Adolescent ; Depression ; UndertreatmentSource: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: MedicinePsychologyType of Medium: Electronic ResourceURL: -
12Articles: DFG German National LicensesStaff View
ISSN: 0003-2670Keywords: Atomic absorption spectrometry ; Dextrans ; Ion chromatography ; PreconcentrationSource: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: Chemistry and PharmacologyType of Medium: Electronic ResourceURL: -
13Articles: DFG German National LicensesStaff View
ISSN: 1572-9486Source: Springer Online Journal Archives 1860-2000Topics: PhysicsNotes: Abstract The strain hardening rateθ was determined as a function of flow stressσ in torsion tests over the range 900–1200 °C, 0·1–5·0s−1 in both as-cast and worked 316 stainless steel. Changes in slope of theθ-σ curves and extrapolation to theθ=0 axis permitted determination of the saturation stress σ s * , and the critical strain for recrystallization which could be compared with the peak in the flow curve. Analysis of the dependence on temperature and strain rate showed that the data could be fitted either to the Kocks-Mecking equations or to the sinh and Arrhenius functions. The flow stresses and the empirical constants in the above equations are compared with those of 304 and 317 steels which contain less and more Mo, respectively.Type of Medium: Electronic ResourceURL: -
14Articles: DFG German National LicensesStaff View
ISSN: 0040-5639Topics: Theology and Religious StudiesURL: -
15Articles: DFG German National LicensesMcComb, D. J. ; Ryan, N. ; Horvath, E. ; Kovacs, K. ; Domokos, I. ; Laszlo, F. A.
Springer
Published 1979Staff ViewISSN: 1420-9071Source: Springer Online Journal Archives 1860-2000Topics: BiologyMedicineNotes: Summary Following 2 weeks of administration of 2-bromo-α-ergocryptine, a marked decrease was observed in prolactin immunoreactivity of the grafted pituitaries, whereas no reduction was noted in the intrasellar pituitaries. No evidence of crinophagy was revealed by electron microscopy in prolactin cells of 2-bromo-α-ergocryptine-treated rats.Type of Medium: Electronic ResourceURL: -
16Articles: DFG German National LicensesStaff View
ISSN: 1573-4803Source: Springer Online Journal Archives 1860-2000Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision MechanicsNotes: Abstract A study of the rate of growth of the carbide phase in a molybdenum-TZC alloy has been investigated over the range 1200 to 1500° C. A constant log-normal particle size distribution was maintained over the time-temperature spectrum explored. Particle growth kinetics were found which could be related to either diffusion or interface controlled processes. It is concluded that quantitative metallographic techniques are inadequate to distinguish between these mechanisms in complex alloy systems.Type of Medium: Electronic ResourceURL: -
17Articles: DFG German National LicensesStaff View
ISSN: 0001-1541Keywords: Chemistry ; Chemical EngineeringSource: Wiley InterScience Backfile Collection 1832-2000Topics: Chemistry and PharmacologyProcess Engineering, Biotechnology, Nutrition TechnologyNotes: A method is presented for determining the flow-rate - pressure-gradient relationship for the streamline flow of the large class of non-Newtonian, nonthixotropic fluids to which the Powell-Eyring equation applies. The general procedure and assumptions required in developing this method are the same as used in deriving the Hagen-Poiseuille equation except that the Powell-Eyring equation is used in place of Newton's equation to relate shear stress to shear rate.The method can be used to predict pipe-flow pressure gradients from both precision viscometer data and pipe-flow data. Its applicability is demonstrated for three typical non-Newtonian fluids, 3% carboxymethylcellulose in water, 15% napalm in kerosene, and 33% hydrated lime in water.When used with pipe-flow data, it resembles the method of Alves and associates, compensating for the inconvenience of an additional step in calculation procedure by providing a means of extrapolating beyond the range of the experimental data.The relationships developed facilitate the application of shear-stress - shear-rate data in the design of conduits for non-Newtonian fluids.Additional Material: 4 Ill.Type of Medium: Electronic ResourceURL: -
18Articles: DFG German National LicensesStaff View
ISSN: 0001-1541Keywords: Chemistry ; Chemical EngineeringSource: Wiley InterScience Backfile Collection 1832-2000Topics: Chemistry and PharmacologyProcess Engineering, Biotechnology, Nutrition TechnologyNotes: In pipeline design, for which one needs a means of ascertaining whether the flow will be laminar or turbulent, the Reynolds number is the criterion for Newtonian fluids. The principal purpose of this study was to formulate a more general criterion to characterize the flow regime and to test this form in application to non-Newtonian fluids.Intuitive physical arguments suggested the use of a local stability parameter which is a function of the ratio of input energy to energy dissipation for an element of fluid. If the parameter is applied to a Newtonian fluid in laminar pipe flow, one finds that it has a maximum value of 0.385 times the critical Reynolds number, or 808. As the criterion is presumed to be general, it is inferred that the value of 808 defines the boundary between stable laminar and stable turbulent pipe flow for all fluids. The inference has been varified for several pseudoplastic fluids.Additional Material: 6 Ill.Type of Medium: Electronic ResourceURL: