Search Results - (Author, Cooperation:H. Lange)
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1Latest Papers from Table of Contents or Articles in PressM. Raghavan ; M. DeGiorgio ; A. Albrechtsen ; I. Moltke ; P. Skoglund ; T. S. Korneliussen ; B. Gronnow ; M. Appelt ; H. C. Gullov ; T. M. Friesen ; W. Fitzhugh ; H. Malmstrom ; S. Rasmussen ; J. Olsen ; L. Melchior ; B. T. Fuller ; S. M. Fahrni ; T. Stafford, Jr. ; V. Grimes ; M. A. Renouf ; J. Cybulski ; N. Lynnerup ; M. M. Lahr ; K. Britton ; R. Knecht ; J. Arneborg ; M. Metspalu ; O. E. Cornejo ; A. S. Malaspinas ; Y. Wang ; M. Rasmussen ; V. Raghavan ; T. V. Hansen ; E. Khusnutdinova ; T. Pierre ; K. Dneprovsky ; C. Andreasen ; H. Lange ; M. G. Hayes ; J. Coltrain ; V. A. Spitsyn ; A. Gotherstrom ; L. Orlando ; T. Kivisild ; R. Villems ; M. H. Crawford ; F. C. Nielsen ; J. Dissing ; J. Heinemeier ; M. Meldgaard ; C. Bustamante ; D. H. O'Rourke ; M. Jakobsson ; M. T. Gilbert ; R. Nielsen ; E. Willerslev
American Association for the Advancement of Science (AAAS)
Published 2014Staff ViewPublication Date: 2014-08-30Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: Alaska/ethnology ; Arctic Regions/ethnology ; Base Sequence ; Bone and Bones ; Canada/ethnology ; DNA, Mitochondrial/genetics ; Genome, Human/*genetics ; Greenland/ethnology ; Hair ; History, Ancient ; *Human Migration ; Humans ; Inuits/ethnology/*genetics/history ; Molecular Sequence Data ; Siberia/ethnology ; Survivors/history ; ToothPublished by: -
2FIS Bildung LiteraturdatenbankGross, Horst-Eckart [Verfasser] ; Deppe, F. [Verfasser] ; Lange, H. [Verfasser] ; Henseler, W. [Verfasser] ; Pape, I. [Verfasser] ; Schlapkohl, E. [Verfasser] ; Klutentreter, H. [Verfasser] ; Vetter, H. O. [Verfasser] ; Hollaender, F. [Verfasser] ; Janovskaja, S. [Verfasser]
Bielefeld
Published 1980Staff ViewType of Medium: bookPublication Date: 1980Keywords: Arbeitnehmerinteresse ; Berufsproblem ; Mathematiker ; Naturwissenschaftler ; Hochschule ; FuE-Dokument ; GewerkschaftLanguage: German -
3Latest Papers from Table of Contents or Articles in PressUslaner, J. M., Kuduk, S. D., Wittmann, M., Lange, H. S., Fox, S. V., Min, C., Pajkovic, N., Harris, D., Cilissen, C., Mahon, C., Mostoller, K., Warrington, S., Beshore, D. C.
The American Society for Pharmacology and Experimental Therapeutics
Published 2018Staff ViewPublication Date: 2018-05-05Publisher: The American Society for Pharmacology and Experimental TherapeuticsPrint ISSN: 0022-3565Electronic ISSN: 1521-0103Topics: MedicinePublished by: -
4Articles: DFG German National LicensesLange, H. ; Baranowski, P. ; Huczko, A. ; Byszewski, P.
[S.l.] : American Institute of Physics (AIP)
Published 1997Staff ViewISSN: 1089-7623Source: AIP Digital ArchiveTopics: PhysicsElectrical Engineering, Measurement and Control TechnologyNotes: An automated system for controlling the interelectrode gap of the carbon arc and positioning the plasma, constructed from commercially available components, is described. The core components of the system are the linear photodetector array, analog, and digital integrated circuits, and two direct current motors. It allows for both maintaining constant arc gap and its positioning against the optical axis of the plasma diagnostic arrangement. The method of operation is demonstrated via the production of fullerenes and carbon nanotubes. This control contrivance has been used for more than one year in bench scale with very satisfactory results. In addition, the design presented here has been found to be simple to construct from readily available components and has the merit of being quite inexpensive, too (the entire cost is under $2400). © 1997 American Institute of PhysicsType of Medium: Electronic ResourceURL: -
5Articles: DFG German National LicensesFilonov, A. B. ; Migas, D. B. ; Shaposhnikov, V. L. ; Dorozhkin, N. N. ; Petrov, G. V. ; Borisenko, V. E. ; Henrion, W. ; Lange, H.
[S.l.] : American Institute of Physics (AIP)
Published 1996Staff ViewISSN: 1089-7550Source: AIP Digital ArchiveTopics: PhysicsNotes: Band structure calculations for β-FeSi2 have been performed by the linear muffin-tin orbital method within the local density approximation scheme including exchange and correlation effects. A detailed analysis of the conduction and valence band structure around high-symmetry points has shown the existence of a quasidirect band gap structure in the material. It is experimentally confirmed that between the threshold energy of optical interband transition of 0.73 eV and the first direct gap transition with appreciable oscillator strength at about 0.87 eV there is a region in which direct transition of low oscillator strength and indirect transitions overlap. That explains the tricky behavior of β-FeSi2 in experimental investigations demonstrating it to be either a direct or indirect gap semiconductor. © 1996 American Institute of Physics.Type of Medium: Electronic ResourceURL: -
6Articles: DFG German National LicensesLange, H. ; Toomire, B. ; Zweifel, P. F.
College Park, Md. : American Institute of Physics (AIP)
Published 1995Staff ViewISSN: 1089-7658Source: AIP Digital ArchiveTopics: MathematicsPhysicsNotes: A coupled nonlinear Schrödinger–Poisson equation is considered which contains a time-dependent dissipation function as a specific model of dissipation effects in nonlinear quantum transport theory and other areas. The Wigner–Poisson equation associated with this system is derived. Using conservation and quasiconservation laws and certain growth assumptions for the nonlinearities and the dissipation function, global existence of solutions to the Cauchy problem of the time-dependent Schrödinger–Poisson system is shown both for small (attractive case) or arbitrary data (repulsive case). © 1995 American Institute of Physics.Type of Medium: Electronic ResourceURL: -
7Articles: DFG German National LicensesBrehme, S. ; Lengsfeld, P. ; Stauss, P. ; Lange, H. ; Fuhs, W.
[S.l.] : American Institute of Physics (AIP)
Published 1998Staff ViewISSN: 1089-7550Source: AIP Digital ArchiveTopics: PhysicsNotes: Cr-doped and undoped β-FeSi2 thin films were deposited on (001) and (111) Si substrates by molecular beam epitaxy. Single crystals were grown by the chemical vapor transport technique. In thin films we found a significant substrate influence on the Hall voltage at room temperature which was strongly reduced at lower temperatures. In Cr-doped samples a transition between defect-band conduction and valence-band conduction was observed in the temperature range 50–100 K. The behavior of the mobility curves μ(T) suggests that defect-band conduction dominates up to near room temperature in nominally undoped thin films. Below a sample-dependent temperature, being not higher than 150 K, often a nonlinear dependence of the Hall effect on the magnetic field was found, sometimes accompanied by pronounced hysteresis behavior. It is shown that this behavior is rather related to microinhomogeneities than to a magnetic phase transition. © 1998 American Institute of Physics.Type of Medium: Electronic ResourceURL: -
8Articles: DFG German National LicensesStaff View
ISSN: 1089-7658Source: AIP Digital ArchiveTopics: MathematicsPhysicsNotes: In a recent paper, Brüll and Lange [Expos. Math. 4, 279 (1986); Math. Meth. Appl. Sci. 8, 559 (1986)] have discussed a class of nonlinear Schrödinger equations with rather general nonlinearities which comprises various cases occurring in the literature. Although the "potentials'' in these equations are quite complicated, the equations admit various invariance properties. The present paper has two aims. First several local and global conservation laws related to conservation of mass, impulse, and energy are exhibited. One of these laws seems to be new, though not surprising. Then it is shown that the equation defined by Brüll and Lange is just suitable to apply some transformations which reduce the problem of solitary waves to a relatively simple Hamiltonian system in the plane. This method of transforming the phase plane problem into normal form is, in some respects, similar to the transformations introduced by Hadeler [Proc. Math. Soc. Edinburgh, to be published; Free Boundary Problems: Theory and Applications, Montecatini Conference, 1981, edited by A.Fasano and M. Primicerio (Pitman, New York, 1983), Vol. II, pp. 664–671] for parabolic and hyperbolic reaction diffusion equations.Type of Medium: Electronic ResourceURL: -
9Articles: DFG German National LicensesSTEPHAN, H. ; SONNTAG, H. ; LANGE, H. ; RIEKE, H.
Oxford, UK : Blackwell Publishing Ltd
Published 1989Staff ViewISSN: 1365-2044Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: MedicineNotes: Cerebral blood flow, cerebral oxygen and glucose consumption, and cerebral lactate and pyruvate release were measured; spectral analysis of the EEG was recorded in 10 male patients who had coronary artery bypass surgery. The measurements were taken to evaluate the effects of fentanyl–midazolam anaesthesia during normothermia and during hypothermic nonpulsatile cardiopulmonary bypass at 26°C venous blood temperature, when a temperature-corrected Paco2-value of 5.3 kPa was maintained. Anaesthesia with fentanyl 7 μg/kg and midazolam 200 μg/kg as induction doses, followed by infusions of fentanyl 0.15 μg/kg/minute and midazolam 3 μg/kg/minute, was characterised by a decrease in fast-wave activity and an increase in high-amplitude, slow-wave activity in the EEG. There was also a decrease in cerebral blood flow (38%), oxygen consumption (22%) and glucose consumption (25%), while lactate and pyruvate production remained unchanged. Hypothermia of 26°C venous blood temperature suppressed EEG almost completely and decreased oxygen and glucose consumption by a further 61% and 54%, respectively, with no changes in lactate and pyruvate production while cerebral blood flow increased by 145%. These results show that the effects of fentanyl–midazolam anaesthesia on cerebral metabolism are enhanced during hypothermic cardiopulmonary bypass while the influence of anaesthesia on cerebral blood flow is overshadowed by the practice of a temperature-corrected acid-base management.Type of Medium: Electronic ResourceURL: -
10Articles: DFG German National LicensesStaff View
ISSN: 1089-7690Source: AIP Digital ArchiveTopics: PhysicsChemistry and PharmacologyNotes: A model of rods with heads of variable size, which are confined to a planar surface, is used to study the influence of the head group size on tilted phases in Langmuir monolayers. Simple free energy considerations as well as exact zero temperature calculations indicate that molecules with small head groups tilt towards next nearest neighbors, and molecules with larger head groups towards nearest neighbors. This provides a possible explanation for recent experimental results, and for details of the generic phase diagram for fatty acid monolayers. © 1997 American Institute of Physics.Type of Medium: Electronic ResourceURL: -
11Articles: DFG German National LicensesLARSEN, R. ; RATHGEBER, J. ; BAGDAHN, A. ; LANGE, H. ; RIEKE, H.
Oxford, UK : Blackwell Publishing Ltd
Published 1988Staff ViewISSN: 1365-2044Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: MedicineNotes: The cardiovascular and myocardial effects of propofol and etomidate were studied in 20 geriatric patients (age 65–84 years) who underwent major upper abdominal surgery. Ten patients received propofol 1.5 mg I kg for induction of anaesthesia followed by a continuous infusion of 0.1 mg/kg I minute for maintenance; 10 patients received etomidate 18 mg for induction followed by 2.4 mg/minute for maintenance. Vecuronium was used for neuromuscular blockade. Cardiovascular dynamics were recorded in the awake state one minute after induction and 1, 5 and 30 minutes after tracheal intubation; coronary blood flow (argon wash-in) and myocardial oxygen consumption were determined in the awake state and 5 and 30 minutes after intubation. Both anaesthetics decreased systolic, diastolic and mean arterial pressures, heart rate and cardiac index to the same extent. Myocardial blood flow and oxygen consumption were also reduced in both groups due to a reduction in cardiac work. Tracheal intubation produced a marked increase in arterial pressure in the etomidate group, while haemodynamic changes were absent in the propofol group, Myocardial lactate production was not observed in either group 5 or 30 minutes after tracheal intubation.Type of Medium: Electronic ResourceURL: -
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ISSN: 0022-8877Topics: PhilosophyNotes: BuchbesprechungenURL: -
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ISSN: 1546-170XSource: Nature Archives 1869 - 2009Topics: BiologyMedicineNotes: [Auszug] To the editor — In the August issue of Nature Medicine (2, 883–887; 1996), S. Prakash and T.M.S. Chang reported the administration of genetically engineered live E. coli cells to uremic rats in an attempt to reduce plasma urea levels. The encapsulated bacteria used the urea as a ...Type of Medium: Electronic ResourceURL: -
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ISSN: 0030-5383Topics: Linguistics and Literary StudiesEthnic SciencesHistoryNotes: BesprechungenURL: -
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ISSN: 0030-5383Topics: Linguistics and Literary StudiesEthnic SciencesHistoryNotes: BesprechungenURL: