Wick, B., Veldkamp, E., De Mello, W. Z., Keller, M., Crill, P.
We studied nitrous oxide (N2O) fluxes and soil nitrogen (N) cycling following forest conversion to pasture in the central Amazon near Santarém, Pará, Brazil. Two undisturbed forest sites and 27...
Wick, B., Veldkamp, E., De Mello, W. Z., Keller, M., Crill, P.
We studied nitrous oxide (N2O) fluxes and soil nitrogen (N) cycling following forest conversion to pasture in the central Amazon near Santarém, Pará, Brazil. Two undisturbed forest sites and 27...
Wick, B., Veldkamp, E., De Mello, W. Z., Keller, M., Crill, P.
We studied nitrous oxide (N2O) fluxes and soil nitrogen (N) cycling following forest conversion to pasture in the central Amazon near Santarém, Pará, Brazil. Two undisturbed forest sites and 27...
Wick, B., Veldkamp, E., De Mello, W. Z., Keller, M., Crill, P.
We studied nitrous oxide (N2O) fluxes and soil nitrogen (N) cycling following forest conversion to pasture in the central Amazon near Santarém, Pará, Brazil. Two undisturbed forest sites and 27...
Rapid leukocyte migration by integrin-independent flowing and squeezing (2008)
Lämmermann, T., Bader, B. L., Monkley, S. J., Worbs, T., Wedlich-Söldner, R., Hirsch, K., ...
Equipment design for clean room use (2008)
Gommel, U., Bürger, F., Kreck, G., Keller, M.
Most of the contamination found in clean manufacturing environments originates from production equipment. As a result, it is becoming more and more important that manufacturing equipment is specially...
Hazen, T.C., Dehal, P., Arkin, A.P., Fields, M.W., Keller, M., Zhou, J., ...
Background: Bioremediation may offer the only feasible strategy for the nearly intractable problem of metal and radionuclide contamination of soil and groundwater. To understand bioremediation in...
Das Linet Nutzenmodell: Auf Heller und Pfennig gerechnet (2007)
Die Grundlage der Entwicklung eines Modells zur Nutzenevaluierung stellt die Fokussierung des Betrachtungsraumes dar. Hierzu ist es zu Beginn notwendig, sich mit der Bandbreite möglicher...
Timber production in selectively logged tropical forests in South America (2007)
Keller, M., Asner, G.P., Blate, G., McGlocklin, J., Merry, F., Peña-Claros, M., ...
Selective logging is an extensive land-use practice in South America. Governments in the region have enacted policies to promote the establishment and maintenance of economically productive and...
Boom, J., Wouters, H., Keller, M.
Kohlberg’s characterization of moral development as displaying an invariant hierarchical order of structurally consistent stages is losing ground. However, by applying Rasch analysis, Dawson...
Dumy, P, Keller, M, Ryan, DE, Rohwedder, B, Wohr, T, Mutter, M
Serine, threonine-derived (4S)-oxazolidine-4-carboxylic acid, and cysteine-derived (4R)-thiazolidinecarboxylic acid, denoted pseudo-proline (Xaa[Psi(R1,R2)pro]), serve as structure disrupting,...
Enhancing the proline effect: Pseudo-prolines for tailoring cis/trans isomerization (2006)
Keller, M, Sager, C, Dumy, P, Schutkowski, M, Fischer, GS, Mutter, M
Cis-trans isomerization of proline-like oxazolidines and thiazolidines, denoted pseudo-prolines, is investigated spectrophotometrically with a chymotrypsin coupled assay and by H-1 NMR. A series of...
Ruckle, T, De Lavallaz, P, Keller, M, Dumy, P, Mutter, M
Linear peptide H-Pro-Thr(Psi(Me,Me)pro)-Pro-OH containing a preformed cis-Pro-Thr(Psi(Me,Me)pro) tertiary amide bond cyclises instantaneously and free of formation of oligomeric structures to the...
Mutter, M, Wohr, T, Gioria, S, Keller, M
Molecular events such as cis/trans isomerization of Xaa-Pro tertiary amide bonds in peptides and proteins are slow on the overall time scale of the formation of a final biostructure and are,...
Keller, M, Lehmann, C, Mutter, M
When treated with anisaldehyde dimethylacetal the O-benzyl ester protected dipeptide Fmoc-NMeIle-Thr-OBzl (2, cf. Scheme 3), cyclizes to the 2-C(S) epimer 3b assigned by NMR spectroscopy to chirality...
Keller, M., Mutter, M., Lehmann, C.
Electrophilically induced cyclic acetal formation of the O-benzyl dipeptide esters Fmoc-NMeIle-Thr-OBn (1) and of Fmoc-Pro-Thr-OBn (6) has been observed to lead predominantly to the (R) diastereomers...
Keller, M, Wohr, T, Dumy, P, Patiny, L, Mutter, M
The insertion of acetals that exhibit variable structural features into complex peptides such as cyclosporin C (CsC) results in oxazolidine derivatives (pseudoprolines, Psi Pro) of tailored...
Pseudoprolines: Targeting a cis conformation in a mimetic of the gp120 v3 loop of HIV-1 (2006)
Wittelsberger, A, Keller, M, Scarpellino, L, Patiny, L, Acha-Orbea, H, Mutter, M
Keller, M, Boissard, C, Patiny, L, Chung, NN, Lemieux, C, Mutter, M, ...
Analogues of the opioid peptides [D-Phe(3)]morphiceptin (H-Tyr-Pro-D-Phe-Pro-NH2) and endomorphin-2 (H-Tyr-Pro-Phe-Phe-NH2) containing the pseudoproline (Psi Pro) (4R)-thiazolidine-4-carboxylic acid...
Patiny, L, Guichou, JF, Keller, M, Turpin, O, Ruckle, T, Lhote, P, ...
The chemical synthesis, conformational analysis and receptor binding studies of novel constrained cyclosporin A (CsA) analogues are described. The selective insertion of pseudo-proline (PsiPro)...
Bewertung und Verteilung von Kosten und Nutzen in Wertschöpfungsnetzwerken (2006)
Kuhn, A., Hellingrath, B., Keller, M., Riha, I.V.
In den letzten Jahren haben sich die Unternehmen auf ihre Kernkompetenzen konzentriert. Dies hat dazu geführt, dass die Wertschöpfung bei den Original Equiment Manufacturers (OEM) abgenommen hat....
Calpains: a physiological regulator of the endothelial barrier? (2006)
Gonscherowski, V., Becker, B. F., Moroder, L., Motrescu, E., Gil-Parrado, S., Gloe, T., ...
High pigment tomato mutants - more than just lycopene (a review) (2006)
Levin, I., Tadmor, Y., Bovy, A.G., Lieberman, M., Oren-Shamir, M., ...
Fruit constitutes a major component of our diet, providing fiber, vitamins, minerals, and many phytonutrients that promote good health. Fleshy fruits such as tomatoes already contain high levels of...
Schmiermittelarme Leichtbauzahnradgetriebe durch Beschichtungen (2006)
Petrik, M., Brand, J., Keller, M., Slatter, R., Kroenen, H., Crummenauer, J., ...
Neel Temperature of Quasi-Low-Dimensional Heisenberg Antiferromagnets (2005)
Yasuda, C., Todo, S., Hukushima, K., Alet, F., Keller, M., Troyer, M., ...
The N\\\'eel temperature, $T_{\\rm N}$, of quasi-one- and quasi-two-dimensional antiferromagnetic Heisenberg models on a cubic lattice is calculated by Monte Carlo simulations as a function of...
CD25-expressing CD8+ T cells are potent memory cells in old age (2005)
Herndler-Brandstetter, D., Schwaiger, S., Veel, E., Fehrer, C., Cioca, D.P., Almanzar, G., ...
We have recently described an IL-2/IL-4-producing CD8+CD25+ nonregulatory memory T cell population that occurs in a subgroup of healthy elderly persons who characteristically still have a good...
Schmiermittelarme Leichtbauzahnradgetriebe durch Beschichtungen (2005)
Petrik, M., Brand, J., Keller, M., Slatter, R., Koenen, H., Crummenauer, J., ...
One of the central problems in manufacturing gears is to lengthen the life and increase the load capacity of transmissions and drive elements made from lightweight materials. Using lighter materials...
Schmiermittelarme Leichtbauzahnradgetriebe durch Beschichtungen (2005)
Petrik, M., Brand, J., Keller, M., Slatter, R., Koenen, H., Crummenauer, J., ...
Eines der zentralen Probleme der Getriebehersteller ist es, die Lebensdauer und die Belastung der Getriebe - auch mit leichteren Materialien - zu erhöhen. Im Rahmen dieses Projektes wurden Methoden...
Leicht und leistungsfähig: Schmiermittelarme Leichtbauzahnradgetriebe durch Beschichtungen (2005)
Petrik, M., Brand, J., Keller, M., Slatter, R., Koenen, H., Crummenauer, J., ...
Durch die Entwicklung leichter schmiermittelfreier Zahnradgetriebe kleiner und mittlerer Leistung unter Verwendung von Leichtmetallen und Beschichtungen sollen Abmessung, Gewicht und Kosten reduziert...
Thrombin inhibitors identified by computer-assisted multiparameter design (2005)
Riester, D., Wirsching, F., Salinas, G., Keller, M., Gebinoga, M., Kamphausen, S., ...
Mitochondria in actively swimming ectotherms ROS consumers instead of producers? (2004)
Abele, D., Philipp, E., Heise, K., Keller, M., Pörtner, H. O., Nikinma, M.
Neel Temperature of Quasi-Low-Dimensional Heisenberg Antiferromagnets (2003)
Yasuda, C., Todo, S., Hukushima, K., Alet, F., Keller, M., Troyer, M., ...
The N\'eel temperature, $T_{\rm N}$, of quasi-one- and quasi-two-dimensional antiferromagnetic Heisenberg models on a cubic lattice is calculated by Monte Carlo simulations as a function of...
Biodiversity meet the atmosphere: a global view of forest canopies (2003)
Ozanne, C. M. P., Anhuf, D., Boulter, Sarah, Keller, M., Kitching, Roger, Korner, C., ...
The forest canopy is the functional interface between 90% of Earth's terrestrial biomass and the atmosphere. The authors offer a global view of forest canopies.
Biodiversity meet the atmosphere: a global view of forest canopies (2003)
Ozanne, C. M. P., Anhuf, D., Boulter, Sarah, Keller, M., Kitching, Roger, Korner, C., ...
The forest canopy is the functional interface between 90% of Earth's terrestrial biomass and the atmosphere. The authors offer a global view of forest canopies.
Biodiversity meet the atmosphere: a global view of forest canopies (2003)
Ozanne, C. M. P., Anhuf, D., Boulter, Sarah, Keller, M., Kitching, Roger, Korner, C., ...
The forest canopy is the functional interface between 90% of Earth's terrestrial biomass and the atmosphere. The authors offer a global view of forest canopies.
Diversity of Sinorhizobium meliloti from the Central Asian Alfalfa Gene Center (2002)
Roumiantseva, M.L., Andronov, E.E., Sharypova, L.A., Dammann-Kalinowski, T., Keller, M., Young, J.P.W., ...
Sinorhizobium meliloti was isolated from nodules and soil from western Tajikistan, a center of diversity of the host plants (Medicago, Melilotus, and Trigonella species). There was evidence of...
McCarty, J. H., Monahan-Earley, R. A., Brown, L. F., Keller, M., Gerhardt, H., Rubin, K., ...
Mouse embryos genetically null for the alphav integrin subunit develop intracerebral hemorrhages at midgestation and die shortly after birth. A key question is whether the hemorrhage arises from...
Diversity of Sinorhizobium meliloti from the Central Asian Alfalfa Gene Center (2002)
Roumiantseva, M.L., Andronov, E.E., Sharypova, L.A., Dammann-Kalinowski, T., Keller, M., Young, J.P.W., ...
Sinorhizobium meliloti was isolated from nodules and soil from western Tajikistan, a center of diversity of the host plants (Medicago, Melilotus, and Trigonella species). There was evidence of...
Diversity of Sinorhizobium meliloti from the Central Asian Alfalfa Gene Center (2002)
Roumiantseva, M.L., Andronov, E.E., Sharypova, L.A., Dammann-Kalinowski, T., Keller, M., Young, J.P.W., ...
Sinorhizobium meliloti was isolated from nodules and soil from western Tajikistan, a center of diversity of the host plants (Medicago, Melilotus, and Trigonella species). There was evidence of...
Dynamical mean-field theory for the normal phase of the attractive Hubbard model (2001)
Keller, M., Metzner, W., Schollwoeck, U.
We analyze the normal phase of the attractive Hubbard model within dynamical mean-field-theory. We present results for the pair-density, the spin-susceptibility, the specific heat, the momentum...
Dynamical mean-field theory for pairing and spin gap in the attractive Hubbard model (2001)
Keller, M., Metzner, W., Schollwoeck, U.
We solve the attractive Hubbard model for arbitrary interaction strengths within dynamical mean-field theory. We compute the transition temperature for superconductivity and analyze electron pairing...
The ATLAS Level-1 calorimeter Trigger Pre-Processor (2000)
Hanke, P, Husmann, D, Keller, M, Kluge, E E, Krause, J, Mahboubi, K, ...
In situ etching and regrowth in III-V molecular beam epitaxy for future nanotechnology (2000)
Schuler, H., Keller, M., Lipinski, M., Eberl, K., Weis, J., Von Klitzing, K.
Bayer, H., Doerfler, G., Steck, A., Keller, M., Cottone, N., Braeuning, U.
NOVELTY - The drilling rod magazine (10) has a multiple of tool places (12) for the reception of the tools (8). The tool places are respectively formed by a follower (14), movable along a conveying...
First level trigger systems for LHC experiments (1994)
Brawn, I, Carney, RE, Ermoline, Y, Garvey, J, Grant, D, Harris, R, ...