Schouten, S., Buscail, R., Ludwig, W., Bonnin, Jérôme, Sinninghe Damsté, J.S., ...
The Branched and Isoprenoid Tetraether (BIT) index is based on the relative abundance of nonisoprenoidal glycerol dialkyl glycerol tetraethers (GDGTs) derived from organisms living in terrestrial...
High resolution X-ray tomography of micromechanisms of fatigue crack closure (2006)
Khor, K.H., Buffiere, J.Y., Ludwig, W., Sinclair, I.
Fatigue crack closure has been studied in an aluminium alloy via micro tomography. Gallium wetting has been used to visualise grain structure, along with electron backscattered diffraction assessment...
Ohgaki, T., Toda, H., Sinclair, I., Ludwig, W., Kobayashi, T., ...
We have evaluated the liquid Ga penetration into an aluminium alloy by high-resolution X-ray tomography. The 3D visualization of a crack together with its surrounding grain structure was performed...
Microtomography assessment of failure in acrylic bone cement (2005)
Sinnett-Jones, P.E., Browne, M., Ludwig, W., Sinclair, I.
Micromechanical studies of fatigue and fracture processes in acrylic bone cement have been limited to surface examination techniques and indirect signal analysis. Observations may then be...
Ohgaki, T., Toda, H., Sinclair, I., Ludwig, W., Kobayashi, T., ...
We have evaluated the liquid Ga penetration into an aluminium alloy by high-resolution X-ray tomography. The 3D visualization of a crack together with its surrounding grain structure was performed...
Graphical representation of ribosomal RNA probe accessibility data using ARB software package (2005)
Kumar, Y., Westram, R., Behrens, S., Fuchs, B., Glöckner, F. O., Amann, R., ...
Graphical representation of ribosomal RNA probe accessibility data using ARB software package (2005)
Kumar, Y., Westram, R., Behrens, S., Fuchs, B., Glockner, F. O., Amann, R., ...
In situ high resolution synchrotron x-ray tomography of fatigue crack closure micromechanisms (2004)
Khor, K.H., Buffiére, J-Y., Ludwig, W., Toda, H., Ubhi, H.S., Gregson, P.J., ...
Fatigue crack closure has been identified as an important factor in determining crack growth rates. However, the methods of measurement of crack closure remain the subject of ongoing controversy. To...
Microtomography assessment of failure in acrylic bone cement (2004)
Sinnett-Jones, P.E., Browne, M., Ludwig, W., Buffiere, J-Y., Sinclair, I.
Micromechanical studies of fatigue and fracture processes in acrylic bone cement have been limited to surface examination techniques and indirect signal analysis. Observations may then be...
Complete genome sequence of the marine planctomycete Pirellula sp strain 1 (2003)
Glockner,F. O., Kube,M., Bauer,M., Teeling,H., Lombardot,T., Ludwig,W., ...
Pirellula sp. strain 1 ("Rhodopirellula baltica") is a marine representative of the globally distributed and environmentally important bacterial order Planctomycetales. Here we report the complete...
Complete genome sequence of the marine planctomycete Pirellula sp strain 1 (2003)
Glöckner, F. O., Kube, M., Bauer, M., Teeling, H., Lombardot, T., Ludwig, W., ...
Complete genome sequence of the marine planctomycete Pirellula sp strain 1 (2003)
Glockner, F. O., Kube, M., Bauer, M., Teeling, H., Lombardot, T., Ludwig, W., ...
Pirellula sp. strain 1 ("Rhodopirellula baltica") is a marine representative of the globally distributed and environmentally important bacterial order Planctomycetales. Here we report the complete...
High-Resolution Radioscopy and Tomography for Light Materials and Devices (2000)
Helfen, L., Baumbach, T., Banhart, J., Stanzick, H., Cloetens, P., Ludwig, W., ...
New manufacturing techniques and innovative materials, nowadays used in modern product design and fabrication, require elaborated quality control methods by non-destructive testing (NDT). Prominent...
High-Resolution Radioscopy and Tomography for Light Materials and Devices (2000)
Helfen, L., Baumbach, T., Banhart, J., Stanzick, H., Cloetens, P., Ludwig, W., ...
New manufacturing techniques and innovative materials, nowadays used in modern product design and fabrication, require elaborated quality control methods by non-destructive testing (NDT). Prominent...
Phasenkontrastradiographie und -tomographie, eine neue Methode für die Mikro-ZfP (1999)
Baumbach, T., Helfen, L., Boller, E., Ludwig, W., Cloetens, P.
Die Entwicklung moderner strukturwerkstoffe stellt wachsende Anforderungen an die Materialcharakterisierung un die qualitätskontrolle mittels zerstörungsfreier Methoden. Bei der Darstellung von...
Lange, M., Simon, N., Guillou, L., Vaulot, D., Amann, R., Ludwig, W., ...
Phylogenetic identification of segmented filamentous bacteria in the ileum of mice. (1993)
Snel, H., Blok, H.J., Kengen, H.M.P., Ludwig, W., Poelma, F.G.J., Koopman, J.P., ...
SURFACE PHONONS IN SILICON AND SURFACE RECONSTRUCTION (1984)
We have calculated the surface modes in Silicon at a (111)-surface. Apart from the long range limit, the modes depend strongly on the force constants in the first two layers near the surface. Special...
SURFACE PHONONS IN SILICON AND SURFACE RECONSTRUCTION (1984)
We have calculated the surface modes in Silicon at a (111)-surface. Apart from the long range limit, the modes depend strongly on the force constants in the first two layers near the surface. Special...
SURFACE PHONONS IN SILICON AND SURFACE RECONSTRUCTION (1984)
We have calculated the surface modes in Silicon at a (111)-surface. Apart from the long range limit, the modes depend strongly on the force constants in the first two layers near the surface. Special...
RENORMALIZED RESPONSE THEORY WITH APPLICATIONS TO PHONON ANOMALIES (1981)
Falter, C., Ludwig, W., Selmke, M.
A recently developed renormalization method for the electron response problem in effective ion-interactions is applied to phonon anomalies. A microscopic mechanism for the anomalies is proposed and...
RENORMALIZED RESPONSE THEORY WITH APPLICATIONS TO PHONON ANOMALIES (1981)
Falter, C., Ludwig, W., Selmke, M.
A recently developed renormalization method for the electron response problem in effective ion-interactions is applied to phonon anomalies. A microscopic mechanism for the anomalies is proposed and...
RENORMALIZED RESPONSE THEORY WITH APPLICATIONS TO PHONON ANOMALIES (1981)
Falter, C., Ludwig, W., Selmke, M.
A recently developed renormalization method for the electron response problem in effective ion-interactions is applied to phonon anomalies. A microscopic mechanism for the anomalies is proposed and...
Occurrence of fragmented 16S rRNA in an obligate bacterial endosymbiont of Paramecium caudatum.
Springer, N, Ludwig, W, Amann, R, Schmidt, H J, Görtz, H D, Schleifer, K H
The phylogenetic position of Caedibacter caryophila, a so far noncultured killer symbiont of Paramecium caudatum, was elucidated by comparative sequence analysis of in vitro amplified 16S rRNA genes...
Complete genome sequence of the marine planctomycete Pirellula sp. strain 1
Glöckner , F. O., Kube, M., Bauer , M., Teeling, H., Lombardot, T., Ludwig, W., ...
Pirellula sp. strain 1 (“Rhodopirellula baltica”) is a marine representative of the globally distributed and environmentally important bacterial order Planctomycetales. Here we report the...
Obligate intracellular bacterial parasites of acanthamoebae related to Chlamydia spp.
Amann, R, Springer, N, Schönhuber, W, Ludwig, W, Schmid, E N, Müller, K D, ...
The phylogeny of obligate intracellular coccoid parasites of acanthamoebae isolated from the nasal mucosa of humans was analyzed by the rRNA approach. The primary structures of the 16S and 23S rRNA...
Phylogenetic analysis and in situ identification of bacteria in activated sludge.
Snaidr, J, Amann, R, Huber, I, Ludwig, W, Schleifer, K H
The bacterial community structure of activated sludge of a large municipal wastewater treatment plant was investigated by use of the rRNA approach. Almost-full-length genes coding for the...
In situ visualization of high genetic diversity in a natural microbial community.
Amann, R, Snaidr, J, Wagner, M, Ludwig, W, Schleifer, K H
Simultaneous in situ visualization of seven distinct bacterial genotypes, all affiliated with the phylogenetically narrow group of beta-1 Proteobacteria, was achieved in activated sludge. This...
Nübel, U, Engelen, B, Felske, A, Snaidr, J, Wieshuber, A, Amann, R I, ...
Sequence heterogeneities in 16S rRNA genes from individual strains of Paenibacillus polymyxa were detected by sequence-dependent separation of PCR products by temperature gradient gel electrophoresis...
Schmid, A, Rothe, B, Altenbuchner, J, Ludwig, W, Engesser, K H
The dibenzofuran-degrading bacterial strain DPO360 represents a new species of the genus Terrabacter together with the previously described dibenzofuran-mineralizing bacterial strain DPO1361 (K.-H....
Complete oxidation of toluene under strictly anoxic conditions by a new sulfate-reducing bacterium.
Rabus, R, Nordhaus, R, Ludwig, W, Widdel, F
A toluene-degrading sulfate-reducing bacterium, strain Tol2, was isolated from marine sediment under strictly anoxic conditions. Toluene was toxic if applied directly to the medium at concentrations...
Betzl, D, Ludwig, W, Schleifer, K H
Specific sequences of 23S rRNA of Lactococcus lactis, Enterococcus faecalis, Enteroccus faecium, and Enterococcus malodoratus/Enterococcus avium were identified, and complementary oligonucleotide...
PCR-based preparation of 23S rRNA-targeted group-specific polynucleotide probes.
Ludwig, W, Dorn, S, Springer, N, Kirchhof, G, Schleifer, K H
DNA coding for a variable region within domain III of bacterial 23S rRNA was used as the target for group-specific polynucleotide hybridization probes. The corresponding rDNA was amplified in vitro...
Saweljew, P, Kunkel, J, Feddersen, A, Baumert, M, Baehr, J, Ludwig, W, ...
The case of a 75-year-old man who succumbed to a disseminated infection most likely caused by a species of the genus Aureobacterium is reported. Identification of the isolate was achieved by...
DNA hybridization probe for the Pseudomonas fluorescens group.
Festl, H, Ludwig, W, Schleifer, K H
Plasmid pHF360 was constructed from cloned rRNA genes (rDNA) of Pseudomonas aeruginosa and used as hybridization probe for the Pseudomonas fluorescens group. The probe was tested by dot and in situ...
Phylogenetic identification and in situ detection of individual microbial cells without cultivation.
Amann, R I, Ludwig, W, Schleifer, K H
The frequent discrepancy between direct microscopic counts and numbers of culturable bacteria from environmental samples is just one of several indications that we currently know only a minor part of...
Husmann, M, Gries, C, Jehnichen, P, Woelfel, T, Gerken, G, Ludwig, W, ...
A campylobacter-like organism was isolated from an effusion of the left knee joint of an AIDS patient 2 weeks after bacteremia with a morphologically identical organism. Amplified genomic 16S rRNA...
Construction of a DNA probe for the specific identification of Streptococcus oralis.
Schmidhuber, S, Ludwig, W, Schleifer, K H
A DNA probe for the specific detection and identification of Streptococcus oralis was isolated from HindII-digested DNA of S. oralis NCTC 11427 and cloned in Escherichia coli. The plasmid pOS1...
Complete nucleotide sequence of a 23S ribosomal RNA gene from Pseudomonas aeruginosa.
Toschka, H Y, Höpfl, P, Ludwig, W, Schleifer, K H, Ulbrich, N, Erdmann, V A
Improved Method for Polynucleotide Probe-Based Cell Sorting, Using DNA-Coated Microplates
We developed an improved method for cultivation-independent sorting of bacterial cells. The technique is based on labeling the target cells by in situ hybridization with polynucleotide transcript...
Complete nucleotide sequence of a 23S ribosomal RNA gene from Micrococcus luteus.
Regensburger, A, Ludwig, W, Frank, R, Blöcker, H, Schleifer, K H
Complete nucleotide sequence of a 16S ribosomal RNA gene from Pseudomonas aeruginosa.
Toschka, H Y, Höpfl, P, Ludwig, W, Schleifer, K H, Ulbrich, N, Erdmann, V A
Complete nucleotide sequence of a 23S ribosomal RNA gene from Thermus thermophilus HB8.
Höpfl, P, Ulrich, N, Hartmann, R K, Ludwig, W, Schleifer, K H
Occurrence of fragmented 16S rRNA in an obligate bacterial endosymbiont of Paramecium caudatum.
Springer, N, Ludwig, W, Amann, R, Schmidt, H J, Görtz, H D, Schleifer, K H
The phylogenetic position of Caedibacter caryophila, a so far noncultured killer symbiont of Paramecium caudatum, was elucidated by comparative sequence analysis of in vitro amplified 16S rRNA genes...
Complete genome sequence of the marine planctomycete Pirellula sp. strain 1
Glöckner , F. O., Kube, M., Bauer , M., Teeling, H., Lombardot, T., Ludwig, W., ...
Pirellula sp. strain 1 (“Rhodopirellula baltica”) is a marine representative of the globally distributed and environmentally important bacterial order Planctomycetales. Here we report the...
Obligate intracellular bacterial parasites of acanthamoebae related to Chlamydia spp.
Amann, R, Springer, N, Schönhuber, W, Ludwig, W, Schmid, E N, Müller, K D, ...
The phylogeny of obligate intracellular coccoid parasites of acanthamoebae isolated from the nasal mucosa of humans was analyzed by the rRNA approach. The primary structures of the 16S and 23S rRNA...
Phylogenetic analysis and in situ identification of bacteria in activated sludge.
Snaidr, J, Amann, R, Huber, I, Ludwig, W, Schleifer, K H
The bacterial community structure of activated sludge of a large municipal wastewater treatment plant was investigated by use of the rRNA approach. Almost-full-length genes coding for the...
In situ visualization of high genetic diversity in a natural microbial community.
Amann, R, Snaidr, J, Wagner, M, Ludwig, W, Schleifer, K H
Simultaneous in situ visualization of seven distinct bacterial genotypes, all affiliated with the phylogenetically narrow group of beta-1 Proteobacteria, was achieved in activated sludge. This...
Nübel, U, Engelen, B, Felske, A, Snaidr, J, Wieshuber, A, Amann, R I, ...
Sequence heterogeneities in 16S rRNA genes from individual strains of Paenibacillus polymyxa were detected by sequence-dependent separation of PCR products by temperature gradient gel electrophoresis...
Schmid, A, Rothe, B, Altenbuchner, J, Ludwig, W, Engesser, K H
The dibenzofuran-degrading bacterial strain DPO360 represents a new species of the genus Terrabacter together with the previously described dibenzofuran-mineralizing bacterial strain DPO1361 (K.-H....
Complete oxidation of toluene under strictly anoxic conditions by a new sulfate-reducing bacterium.
Rabus, R, Nordhaus, R, Ludwig, W, Widdel, F
A toluene-degrading sulfate-reducing bacterium, strain Tol2, was isolated from marine sediment under strictly anoxic conditions. Toluene was toxic if applied directly to the medium at concentrations...
Betzl, D, Ludwig, W, Schleifer, K H
Specific sequences of 23S rRNA of Lactococcus lactis, Enterococcus faecalis, Enteroccus faecium, and Enterococcus malodoratus/Enterococcus avium were identified, and complementary oligonucleotide...
PCR-based preparation of 23S rRNA-targeted group-specific polynucleotide probes.
Ludwig, W, Dorn, S, Springer, N, Kirchhof, G, Schleifer, K H
DNA coding for a variable region within domain III of bacterial 23S rRNA was used as the target for group-specific polynucleotide hybridization probes. The corresponding rDNA was amplified in vitro...
Saweljew, P, Kunkel, J, Feddersen, A, Baumert, M, Baehr, J, Ludwig, W, ...
The case of a 75-year-old man who succumbed to a disseminated infection most likely caused by a species of the genus Aureobacterium is reported. Identification of the isolate was achieved by...
DNA hybridization probe for the Pseudomonas fluorescens group.
Festl, H, Ludwig, W, Schleifer, K H
Plasmid pHF360 was constructed from cloned rRNA genes (rDNA) of Pseudomonas aeruginosa and used as hybridization probe for the Pseudomonas fluorescens group. The probe was tested by dot and in situ...