M. Zacharias

http://www.fz-juelich.de/nic-series/volume40 A Knowledge-Based Potential for Protein-RNA Docking (2009)

R. P. Bahadur, M. Zacharias, Jan H. Meinke, Ipan Mohanty, Walter Nadler, ...

Proceedings of the NIC Workshop 2008,

Efficient evaluation of sampling quality of molecular dynamics simulations by clustering of dihedral torsion angles and Sammon mapping (2009)

Frickenhaus, S., Kannan, S., Zacharias, M.

Fracture strength and Young's modulus of ZnO nanowires (2008)

Hoffmann, S., Östlund, F., Michler, J., Fan H. J., Zacharias, M., Christiansen, S. H, ...

The fracture strength of ZnO nanowires vertically grown on sapphire substrates was measured in tensile and bending experiments. Nanowires with diameters between 60 and 310 nm and a typical length of...

Fracture strength and Young's modulus of ZnO nanowires (2008)

Hoffmann, S., Östlund, F., Michler, J., Fan H. J., Zacharias, M., Christiansen, S. H, ...

The fracture strength of ZnO nanowires vertically grown on sapphire substrates was measured in tensile and bending experiments. Nanowires with diameters between 60 and 310 nm and a typical length of...

Classification and control of the origin of photoluminescence from Si nanocrystals (2008)

Godefroo, S, Hayne, M, Jivanescu, M, Stesmans, A, Zacharias, M, Lebedev, O. I., ...

Silicon dominates the electronics industry, but its poor optical properties mean that III-V compound semiconductors are preferred for photonics applications. Photoluminescence at visible wavelengths...

Electron spin resonance analysis of Si nanocrystals embedded in a SiO2 matrix (2007)

Jivanescu, Mihaela; U0051061, Stesmans, Andre; U0014266, Godefroo, Stefanie; U0043928, Zacharias, M

Low-temperature electron spin resonance (ESR) has been used to analyze Si nanoparticles embedded in a SiO2 matrix, formed by thermal annealing of SiO/SiO2 superlattices. These structures exhibit an...

Electrical properties of nominally undoped silicon nanowires grown by molecularbeam epitaxy. (2007)

Bauer, J., Fleischer, F., Breitenstein, O., Schubert, L., Werner, P., Gösele, U., ...

ZnO nanowires and nanobelts: Shape selection and thermodynamic modeling. (2007)

Fan, H. J., Barnard, A. S., Zacharias, M.

Formation of nanotubes and hollow nanoparticles based on Kirkendall and diffusion processes: A review. (2007)

Fan, H. J., Gösele, U., Zacharias, M.

Influence of surface diffusion on the formation of hollow nanostructures induced by the Kirkendall effect: The basic concept. (2007)

Fan, H. J., Knez, M., Scholz, R., Hesse, D., Nielsch, K., Zacharias, M., ...

Fracture strength and Young's modulus of ZnO nanowires. (2007)

Hoffmann, S., Östlund, F., Michler, J., Fan, H. J., Zacharias, M., Christiansen, S. H., ...

Electron spin resonance analysis of Si nanocrystals embedded in a SiO< sub>2 < /sub > matrix. (2007)

Jivanescu, M., Stesmans, A., Godefroo, S., Zacharias, M.

Growth and optical properties of phosphorus-doped ZnO nanowires. (2007)

Kim, D. S., Fallert, J., Lotnyk, A., Scholz, R., Pippel, E., Senz, S., ...

Laser-interference lithography tailored for highly symmetrically arranged ZnO nanowire arrays. (2007)

Kim, D. S., Ji, R., Fan, H. J., Bertram, F., Scholz, R., Dadgar, R., ...

Color-changeable optical transport through Se doped CdS 1D nanostructures (2007)

Pan, A. L., Wang, X., He, P., Zhang, Q., Wan, Q., Zhu, X., ...

Fracture strength and Young's modulus of ZnO nanowires (2007)

Hoffmann, S., Östlund, F., Michler, J., Fan, H. J., Zacharias, M., Christiansen, S. H., ...

The fracture strength of ZnO nanowires vertically grown on sapphire substrates was measured in tensile and bending experiments. Nanowires with diameters between 60 and 310 nm and a typical length of...

Fracture strength and Young's modulus of ZnO nanowires (2006)

Hoffmann, S., Ostlund, F., Michler, J., Fan, H. J., Zacharias, M., Christiansen, S. H., ...

The fracture strength of ZnO nanowires vertically grown on sapphire substrates was measured in tensile and bending experiments. Nanowires with diameters between 60 and 310 nm and a typical length of...

Co-existence of ants and an arboreal earthworm in a myrmecophyte of the Indian Western Ghats : anti-predation effect of the earthworm mucus. (2006)

Gaume, Laurence, Shenoy, M., Zacharias, M., Borges, R.M.

Photoluminescence properties of erbium-doped structures of silicon nanocrystals in silicon dioxide matrix (2006)

Timoshenko, V. Y., Zhigunov, D. M., Kashkarov, P. K., Shalygina, O. A., Teterukov, S. A., Zhang, R. J., ...

Photoluminescence of erbium ions in heterostructures with silicon nanocrystals (2006)

Zhigunov, D. M., Shalygina, O. A., Teterukov, S. A., Timoshenko, V. Y., Kashkarov, P. K., Zacharias, M.

High-quality alloyed CdS$_x$Se$_{1-x}$ whiskers as waveguides with tunable stimulated emission (2006)

Pan, A. L., Liu, R. B., Wang, F. F., Xie, S. S., Zou, B. S., Zacharias, M., ...

Controllable charge density in the Si nanocrystals nonvolatile memory (2006)

Shen, J., Lu, T., Alexe, M., Kidun, O., Zacharias, M.

Single-crystalline CdSe nanostructures: From primary grains to oriented nanowires (2006)

Zhao, L., Lu, T. H., Yosef, M., Steinhart, M., Zacharias, M., Gösele, U., ...

Single-crystalline MgAl$_2$O$_4$ spinel nanotubes using a reactive and removable MgO nanowire template (2006)

Fan, H. J., Knez, M., Scholz, R., Nielsch, K., Pippel, E., Hesse, D., ...

Periodic chains of gold nanoparticles and the role of oxygen during the growth of silicon nanowires (2006)

Kolb, F., Berger, A., Hofmeister, H., Pippel, E., Gösele, U., Zacharias, M.

Ferroelectric nanotubes fabricated using nanowires as positive templates (2006)

Alexe, M., Hesse, D., Schmidt, V., Senz, S., Fan, H. J., Zacharias, M., ...

Retarded oxidation of Si nanowires (2006)

Büttner, C. C., Zacharias, M.

Monocrystalline spinel nanotube fabrication based on the Kirkendall effect (2006)

Fan, H. J., Knez, M., Scholz, R., Nielsch, K., Pippel, E., Hesse, D., ...

Si nanocrystal based memories: Effect of the nanocrystal density (2006)

Lu, T. Z., Alexe, M., Scholz, R., Talalaev, V. G., Zhang, R. J., Zacharias, M.

Electronic structure and chemical environment of silicon nanoclusters embedded in a silicon dioxide matrix (2006)

Zimina, A., Eisebitt, S., Eberhardt, W., Heitmann, J., Zacharias, M.

Semiconductor nanowires: From self-organization to growth control (2006)

Fan, H. J., Werner, P., Zacharias, M.

Stimulated emission from ZnO nanorods (2006)

Hauschild, R., Lange, H., Priller, H., Klingshirn, C., Kling, R., Waag, A., ...

Vapour-transport-deposition growth of ZnO nanostructures: Switch between c-axial wires and a-axial belts by indium doping (2006)

Fan, H. J., Fuhrmann, B., Scholz, R., Himcinschi, C., Berger, A., Leipner, H. S., ...

Visible range whispering-gallery mode in microdisk array based on size-controlled Si nanocrystals (2006)

Zhang, R. J., Seo, S. Y., Milenin, A. P., Zacharias, M., Gösele, U.

Well-ordered ZnO nanowire arrays on GaN substrate fabricated via nanosphere lithography (2006)

Fan, H. J., Fuhrmann, B., Scholz, R., Syrowatka, F., Dadgar, A., Krost, A., ...

Template-assisted large-scale ordered arrays of ZnO pillars for optical and piezoelectric applications (2006)

Fan, H. J., Lee, W., Hauschild, R., Alexe, M., Le Rhun, G., Scholz, R., ...

Integration of erbium-doped lithium niobate microtubes into ordered macroporous silicon (2006)

Zhao, L., Lu, T. Z., Zacharias, M., Yu, J., Shen, J., Hofmeister, H., ...

Ant-plant conflicts and a novel case of castration parasitism in a myrmecophyte (2005)

Gaume, Laurence, Zacharias, M., Borges, R.

Questions: Do protective plant-ants perturb the pollination process and the reproduction of their host-plant? If they do, have partner selective mechanisms evolved against such conflicts? Organisms:...

Das Wachstum von Nanodrä„hten (2005)

Zacharias, M., Werner, P.

Erbium ion luminescence of silicon nanocrystal layers in a silicon dioxide matrix measured under strong optical excitation (2005)

Timoshenko, V.Y., Shalygina, O.A., Lisachenko, M.G., Zhigunov, D.M., Teterukovk, S.A., Kashkarov, P., ...

Quantum dot emitters in two-dimensional photonic crystals of macroporous silicon (2005)

Richter, S., Steinhart, M., Hofmeister, H., Zacharias, M., G”ösele, U., Gaponik, N., ...

Birefringence characterization of mono-dispersed silicon nanocrystals planar wave guides (2005)

Navarro-Urios, D., Riboli, F., Cazzanelli, M., Chiasera, A., Daldosso, N., Pavesi, L., ...

Multilevel charge storage in Si nanocrystal superlattices (2005)

Lu, T.Z., Alexe, M., Scholz, R., Zacharias, M.

Electrical behavior of size-controlled Si nanocrystals arranged as single layers (2005)

Lu, T., Shen, J., Mereu, B., Alexe, M., Scholz, R., Talalaev, V.G., ...

On the morphological instability of silicon/silicon dioxide nanowires (2005)

Kolb, F.M., Hofmeister, H., Zacharias, M., G”ösele, U.

Silicon nanocrystals: Size matters (2005)

Heitmann, J., Müller, F., Zacharias, M., G”ösele, U.

Patterned growth of aligned ZnO nanowire arrays on saphire and GaN layers (2005)

Fan, H.J., Fleischer, F., Lee, W., Nielsch, K., Scholz, R., Zacharias, M., ...

Arrays of vertically aligned and hexagonally arranged ZnO nanowires: A new template-directed approach (2005)

Fan, H.J., Lee, W., Scholz, R., Dadgar, A., Krost, A., Nielsch, K., ...

Local luminescence from ZnO nanowires-covered surface: A cathodoluminescence microscopy study (2005)

Fan, H.J., Scholz, R., Zacharias, M., Gö”sele, U., Bertram, F., Forster, D., ...

A low-temperature evaporation route for ZnO nanoneedles and nanosaws (2005)

Fan, H.J., Scholz, R., Dadgar, A., Krost, A., Zacharias, M.

Therapy of the Development of Lymphoceles after Kidney Transplantation – Laparoscopic versus Open Technique? (2005)

A. Hamza, H. Loertzer, A. Wicht, M. Zacharias, P. Fonrara

The therapy of lymphoceles after kidney transplantation should begin with less invasive methods. In our clinic we performed in following order between 1990 and 2004: punc-ture, drainage,...

Therapy of the Development of Lymphoceles after Kidney Transplantation – Laparoscopic versus Open Technique? (2005)

A. Hamza, H. Loertzer, A. Wicht, M. Zacharias, P. Fonrara

The therapy of lymphoceles after kidney transplantation should begin with less invasive methods. In our clinic we performed in following order between 1990 and 2004: punc-ture, drainage,...

Erbium ion luminescence of silicon nanocrystal layers in a silicon dioxide matrix measured under strong optical excitation (2005)

Timoshenko, V. Y., Shalygina, O. A., Lisachenko, M. G., Zhigunov, D. M., Teterukov, S. A., Kashkarov, P. K., ...

The photoluminescence (PL) spectra and kinetics of erbium-doped layers of silicon nanocrystals dispersed in a silicon dioxide matrix (nc-Si/SiO2) are studied. It was found that optical excitation of...

Periodically arranged point defects in a two dimensional photonic crystal - The photonic analogue to a doped semiconductor (2004)

Richter, S., Schweizer, S.L., Hillebrand, R., Jamois, C., Wehrspohn, R.B., Zacharias, M., ...

Size controlled Si nanocrystals (2004)

Zacharias, M.

Highly efficient sensitizing of erbium ion luminescence in size-controlled nc-Si/SiO2 superlattice structures (2004)

Timoshenko, V.Y., Lisaschenko, M.G., Kamenev, B., Shalygina, O.A., Kashkarov, P.K., Heitmann, J., ...

Comparative study of photoluminescence of un-doped and erbium-doped size-controlled nanocrystalline Si/SiO2 multilayered structures (2004)

Timoshenko, V.Y., Lisaschenko, M.G., Shalygina, O.A., Kamenev, B., Zhigunov, D.M., Teterukov, S.A., ...

Excitonic photoluminescence and energy transfer in nanocrystalline Si/SiO2 superlattice structures (2004)

Timoshenko, V.Y., Slalygina, O.A., Lisaschenko, M.G., Kashkarov, P.K., Kovalev, D., Heitmann, J., ...

Interaction of periodically arranged point defects in a two dimensional photonic crystal - The photonic analogue to a doped semiconductor (2004)

Richter, S., Schweizer, S.L., Hillebrand, R., Jamois, C., Wehrspohn, R.B., Zacharias, M.

Periodically arranged point defects in two dimensional photonic crystals (2004)

Richter, S., Hillebrand, R., Jamois, C., Zacharias, M., Gösele, U., Schweizer, S.L., ...

Birefringence in optical waveguides made by silicon nanocrystal superlattices (2004)

Riboli, F., Navarro-Urrios, D., Chiasera, A., Daldosso, N., Pavesi, L., Oton, C.J., ...

Periodically arranged point defects in a two dimensional photonic crystal - The photonic analogue to a doped semiconductor (2004)

Richter, S., Schweizer, S.L., Hillebrand, R., Jamois, C., Wehrspohn, R.B., Zacharias, M., ...

High-efficiency erbium ion luminescence in silicon nanocrystal systems (2004)

Kashkarov, P.K., Kamenev, B., Lisaschenko, M.G., Shalygina, O.A., Timoshenko, V.Y., Schmidt, M., ...

Analysis of silicon nanowires grown by combining SiO evaporation with the VLS mechanism (2004)

Kolb, F.M., Hofmeister, H., Scholz, R., Zacharias, M., Gösele, U., Ma, D.D., ...

Excitons in Si nanocrystals: Confinement and migration effects (2004)

Heitmann, J., Müller, F., Yi, L., Zacharias, M., Kovalev, D., Eichhorn, F.

Growth mechanism and characterization of zinc oxide microcages (2004)

Fan, H.J., Scholz, R., Kolb, F.M., Zacharias, M., Gösele, U.

Self-assembly of ZnO nanowires and the spatial resolved characterization of their luminescence (2004)

Fan, H.J., Bertram, F., Dadgar, A., Christen, J., Krost, A., Zacharias, M.

On the growth mechanism and optical properties of ZnO multi-layer nanosheets (2004)

Fan, H.J., Scholz, R., Kolb, F.M., Zacharias, M., Gösele, U., Heyroth, F., ...

Patterned growth of aligned ZnO nanowire arrays on sapphire and GaN layers (2004)

Fan, H.J., Fleischer, F., Lee, W., Nielsch, K., Scholz, R., Zacharias, M., ...

Two-dimensional dendritic ZnO nanowires from oxidation of Zn microcrystals (2004)

Fan, H.J., Scholz, R., Kolb, F.M., Zacharias, M.

Optical gain in monodispersed silicon nanocrystals (2004)

Cazzanelli, M., Navarro-Urrios, D., Riboli, F., Daldosso, N., Pavesi, L., Heitmann, J., ...

Excitons in Si nanocrystals: Confinement and migration effects (2004)

Heitmann, J., Muller, F., Yi, L. X., Zacharias, M., Kovalev, D., Eichhorn, F.

A detailed analysis of the strong room-temperature photoluminescence (PL) signal of size controlled nc-Si is reported. The size control of nc-Si is realized by evaporation of SiO/SiO2 superlattices...

Phase separation of thin SiO layers in amorphous SiO/SiO2 superlattices during annealing (2003)

Yi, L., Heitmann, J., Scholz, R., Zacharias, M.

Size-controlled Si nanocrystals for photonic and electronic applications (2003)

Zacharias, M., Heitmann, J., Yi, L., Scholz, R., Reiche, M., Gösele, U.

Er doping of ordered size controlled Si nanocrystals (2003)

Schmidt, M., Heitmann, J., Scholz, R., Timoshenkov, V.Y., Lisachenko, M.G., Zacharias, M.

Silicon technology used for size-controlled silicon nanocrystals (2003)

Zacharias, M., Heitmann, J., Yi, L., Wildanger, E., Scholz, R.

Synthesis and size control of Si nanocrystals by SiO/SiO2 superlattices (2003)

Heitmann, J., Scholz, R., Yi, L., Schmidt, M., Zacharias, M.

Synthesis and size control of Si nanocrystals by SiO/SiO2 superlattices and Er doping (2003)

Heitmann, J., Scholz, R., Yi, L., Schmidt, M., Zacharias, M.

Fabrication and photoluminescence properties of erbium doped size-controlled silicon nanocrystals (2003)

Heitmann, J., Schmidt, M., Yi, L., Zacharias, M., Timoshenkov, V.Y., Lisachenko, M.G., ...

Size controlled nc-Si synthesis by SiO/SiO2 superlattices (2002)

Heitmann, J., Scholz, R., Schmidt, M., Zacharias, M.

Si rings, Si cluster, and Si nanocrystals - different states of ultra thin SiOx layers (2002)

Yi, L. X., Heitmann, J., Scholz, R., Zacharias, M.

Size-controlled highly luminescent silicon nanocrystals: A SiO/SiO2 superlattice approach (2002)

Zacharias, M., Heitmann, J., Scholz, R., Kahler, U., Schmidt, M., Bläsing, J.

Bright luminescence from erbium doped nc-Si/SiO2 superlattices (2002)

Schmidt, M., Heitmann, J., Scholz, R., Zacharias, M.

Active control of position, density and size for Si quantum dots for nanophotonic applications (2002)

Zacharias, M., Heitmann, J., Scholz, R., Schmidt, M.

Highly luminescent Si quantum dots - new ways for size, position, and density control (2002)

Zacharias, M., Heitmann, J., Yi, L. X., Scholz, R., Reiche, M., Gösele, U.

Nitrous oxide and the rate of gas uptake from an unventilated lung in dogs (1996)

Joyce, C. J., Baker, A. B., Parkinson, R., Zacharias, M.

The signal for growth rate control and stringent sensitivity in E. coli is not restricted to a particular sequence motif within the promoter region (1990)

Zacharias, M., Göringer, H.U., Wagner, R.

Hybrid promoter constructs were used to determine the DNA sequence requirements for stringent and growth rate control within a promoter region. The promoters were obtained by fusing complementing...

VENOUS SEQUENCE FOLLOWING ETOMIDATE (1979)

ZACHARIAS, M., CLARKE, R. S. J., DUNDEE, J. W., JOHNSTON, S. B.

Five hundred patients receiving one of three different formulations of etomidate were observed on the 2rd and 3rd days after operation for possible venous sequelae. The total frequency of sequelae...

EFFECT OF PREANAESTHETIC MEDICATION ON ETOMIDATE (1979)

ZACHARIAS, M., DUNDEE, J. W., CLARKE, R. S. J., HEGARTY, J. E.

The effects of diazepam and pethidine, when given as preanaesthetic medication, on the induction of anaesthesia and the postanaesthetic sequelae following etomidate were studied in women undergoing...

CORRESPONDENCE (1979)

ZACHARIAS, M., CLARKE, R. S. J., DUNDEE, J. W.

EVALUATION OF THREE PREPARATIONS OF ETOMIDATE (1978)

ZACHARIAS, M., CLARKE, R. S. J., DUNDEE, J. W., JOHNSTON, S. B.

Three formulations of etomidate were evaluated in unpremedicated patients undergoing minor gynaecological procedures. There was a high frequency of pain on injection (up to 50%)and excitatory...

The bend in RNA created by the trans-activation response element bulge of human immunodeficiency virus is straightened by arginine and by Tat-derived peptide.

Zacharias, M, Hagerman, P J

The trans-activation response element (TAR) found near the 5' end of the viral RNA of the human immunodeficiency virus contains a 3-nt bulge that is recognized by the virally encoded trans-activator...

Deletions in the tL structure upstream to the rRNA genes in the E. coli rrnB operon cause transcription polarity.

Zacharias, M, Wagner, R

A number of deletions have been constructed within the leader region of the rrnB operon from E. coli. The deletions remove a potential transcription terminator structure downstream from an...

Polyacrylamide gradient gel electrophoresis for the detection of bended DNA fragments.

Zacharias, M, Wagner, R, Göringer, H U

The tL structure within the leader region of Escherichia coli ribosomal RNA operons has post-transcriptional functions.

Theissen, G, Eberle, J, Zacharias, M, Tobias, L, Wagner, R

We have investigated a series of mutations within a plasmid encoded E. coli ribosomal RNA leader region. The mutations are localized within a structure known as tL, which has been shown to mediate...

The signal for growth rate control and stringent sensitivity in E. coli is not restricted to a particular sequence motif within the promoter region.

Zacharias, M, Göringer, H U, Wagner, R

Hybrid promoter constructs were used to determine the DNA sequence requirements for stringent and growth rate control within a promoter region. The promoters were obtained by fusing complementing...

Influence of the GCGC discriminator motif introduced into the ribosomal RNA P2- and tac promoter on growth-rate control and stringent sensitivity.

Zacharias, M, Göringer, H U, Wagner, R

The synthesis of stable RNA in bacteria is known to be regulated by a stringent control mechanism. Characteristic of stringent-regulated promoters, all ribosomal RNA promoters P1, but not P2, contain...

Influence of static and dynamic bends on the birefringence decay profile of RNA helices: Brownian dynamics simulations.

Zacharias, M, Hagerman, P J

Bends in nucleic acid helices can be quantified in a transient electric birefringence (TEB) experiment from the ratio of the terminal decay times of the bent molecule and its fully duplex counterpart...

Analysis of the stability of looped-out and stacked-in conformations of an adenine bulge in DNA using a continuum model for solvent and ions.

Zacharias, M, Sklenar, H

A combination of conformational search, energy minimization, and energetic evaluation using a continuum solvent treatment has been employed to study the stability of various conformations of the DNA...

Poisson-Boltzmann analysis of the lambda repressor-operator interaction.

Zacharias, M, Luty, B A, Davis, M E, McCammon, J A

A theoretical study of the ion atmosphere contribution to the binding free energy of the lambda repressor-operator complex is presented. The finite-difference form of the Poisson-Boltzmann equation...

Conformational deformability of RNA: a harmonic mode analysis.

Zacharias, M, Sklenar, H

The harmonic mode analysis method was used to characterize the conformational deformability of regular Watson-Crick paired, mismatch- and bulge-containing RNA. Good agreement between atomic...

Conformational analysis of DNA-trinucleotide-hairpin-loop structures using a continuum solvent model.

Zacharias, M

A number of trinucleotide sequences in DNA can form compact and stable hairpin loops that may have significance for DNA replication and transcription. The conformational analysis of these motifs is...

Conformations of an adenine bulge in a DNA octamer and its influence on DNA structure from molecular dynamics simulations.

Feig, M, Zacharias, M, Pettitt, B M

Molecular dynamics simulations have been applied to the DNA octamer d(GCGCA-GAAC). d(GTTCGCGC), which has an adenine bulge at the center to determine the pathway for interconversion between the...

Traditional Chinese acupuncture as an antiemetic.

Weightman, W M, Zacharias, M, Herbison, P

The bend in RNA created by the trans-activation response element bulge of human immunodeficiency virus is straightened by arginine and by Tat-derived peptide.

Zacharias, M, Hagerman, P J

The trans-activation response element (TAR) found near the 5' end of the viral RNA of the human immunodeficiency virus contains a 3-nt bulge that is recognized by the virally encoded trans-activator...

Deletions in the tL structure upstream to the rRNA genes in the E. coli rrnB operon cause transcription polarity.

Zacharias, M, Wagner, R

A number of deletions have been constructed within the leader region of the rrnB operon from E. coli. The deletions remove a potential transcription terminator structure downstream from an...

Polyacrylamide gradient gel electrophoresis for the detection of bended DNA fragments.

Zacharias, M, Wagner, R, Göringer, H U

The tL structure within the leader region of Escherichia coli ribosomal RNA operons has post-transcriptional functions.

Theissen, G, Eberle, J, Zacharias, M, Tobias, L, Wagner, R

We have investigated a series of mutations within a plasmid encoded E. coli ribosomal RNA leader region. The mutations are localized within a structure known as tL, which has been shown to mediate...

The signal for growth rate control and stringent sensitivity in E. coli is not restricted to a particular sequence motif within the promoter region.

Zacharias, M, Göringer, H U, Wagner, R

Hybrid promoter constructs were used to determine the DNA sequence requirements for stringent and growth rate control within a promoter region. The promoters were obtained by fusing complementing...

Influence of the GCGC discriminator motif introduced into the ribosomal RNA P2- and tac promoter on growth-rate control and stringent sensitivity.

Zacharias, M, Göringer, H U, Wagner, R

The synthesis of stable RNA in bacteria is known to be regulated by a stringent control mechanism. Characteristic of stringent-regulated promoters, all ribosomal RNA promoters P1, but not P2, contain...

Influence of static and dynamic bends on the birefringence decay profile of RNA helices: Brownian dynamics simulations.

Zacharias, M, Hagerman, P J

Bends in nucleic acid helices can be quantified in a transient electric birefringence (TEB) experiment from the ratio of the terminal decay times of the bent molecule and its fully duplex counterpart...

Analysis of the stability of looped-out and stacked-in conformations of an adenine bulge in DNA using a continuum model for solvent and ions.

Zacharias, M, Sklenar, H

A combination of conformational search, energy minimization, and energetic evaluation using a continuum solvent treatment has been employed to study the stability of various conformations of the DNA...

Traditional Chinese acupuncture as an antiemetic.

Weightman, W M, Zacharias, M, Herbison, P

Poisson-Boltzmann analysis of the lambda repressor-operator interaction.

Zacharias, M, Luty, B A, Davis, M E, McCammon, J A

A theoretical study of the ion atmosphere contribution to the binding free energy of the lambda repressor-operator complex is presented. The finite-difference form of the Poisson-Boltzmann equation...

Conformational deformability of RNA: a harmonic mode analysis.

Zacharias, M, Sklenar, H

The harmonic mode analysis method was used to characterize the conformational deformability of regular Watson-Crick paired, mismatch- and bulge-containing RNA. Good agreement between atomic...

Conformational analysis of DNA-trinucleotide-hairpin-loop structures using a continuum solvent model.

Zacharias, M

A number of trinucleotide sequences in DNA can form compact and stable hairpin loops that may have significance for DNA replication and transcription. The conformational analysis of these motifs is...

Conformations of an adenine bulge in a DNA octamer and its influence on DNA structure from molecular dynamics simulations.

Feig, M, Zacharias, M, Pettitt, B M

Molecular dynamics simulations have been applied to the DNA octamer d(GCGCA-GAAC). d(GTTCGCGC), which has an adenine bulge at the center to determine the pathway for interconversion between the...

Effectiveness of preoperative analgesics on postoperative dental pain: a study.

Zacharias, M., Hunter, K. M., Baker, A. B.

Patients undergoing extractions of third molar teeth under general anesthesia were given a placebo, diclofenac (a nonsteroidal anti-inflammatory drug) 100 mg, or methadone (an opiate) 10 mg 60 to 90...