Filtern
Erscheinungsjahr
Dokumenttyp
Sprache
- Englisch (48)
- Deutsch (18)
- Mehrsprachig (1)
Schlagworte
- Apis mellifera (4)
- Automobilindustrie (3)
- Kennwerte (3)
- Pathogen (3)
- Virulence (3)
- Biodegradable polyesters (2)
- Bioinformatics (2)
- Decline (2)
- Disease (2)
- Evolution (2)
- Fatty acids (2)
- Feinblech (2)
- Honeybee (2)
- Host (2)
- Karosseriestähle (2)
- Rhenium (2)
- Termites (2)
- Virology (2)
- Virus (2)
- 1,1-Diphenylethylene (1)
- A key interface (1)
- Abfallverbrennung (1)
- Achsschenkel (1)
- Acidobacteria (1)
- Adaption (1)
- Adipokinetic hormone (AKH) (1)
- Ag-LDI-MS (1)
- Aging (1)
- Alternating sequence (1)
- Animal immune system (1)
- Anisotropie (1)
- Anti-microbial effects (1)
- Apis (1)
- Automation (1)
- Automobilbau (1)
- Automotive engineering (1)
- Bead injection spectroscopy (1)
- Bee (1)
- Behavioural mechanisms (1)
- Berechnung (1)
- Bioabbaubare Polyester (1)
- Bioinformatics virology viruses software (1)
- Biotechnology (1)
- Biotic environment (1)
- Blattodea (1)
- Bombus (1)
- Brandversuche (1)
- Bruchmechanik (1)
- Bruchmechanische Auslegung (1)
- Bruchzähigkeit (1)
- C14-PMMA-Imprägnations-Radiographie (1)
- Capillary condensation (1)
- Chemical ecology (1)
- Climate change (1)
- Co-infection (1)
- Cockroach (1)
- Coexpression (1)
- Computertomographie (1)
- Contraction (1)
- Copolymer structure (1)
- Coptotermes (1)
- Core microbiome (1)
- Coupling of analytical methods (1)
- Crashverhalten (1)
- Crystallization (1)
- Cuticular hydrocarbons (1)
- Cyclic properties (1)
- DNA polymerase (1)
- DWV (1)
- Damage (1)
- Data science (1)
- Deconvolution (1)
- Deformed wing virus (1)
- Dehnungswöhlerlinie (1)
- Dehnungswöhlerlinien (1)
- Depth profiling (1)
- Digital image correlation (1)
- Drug research (1)
- Ductile tearing (1)
- Duktiles Risswachstum (1)
- ERDA (1)
- Elastisch (1)
- Elasto-plastic material behaviour (1)
- Elasto-plastisches Werkstoffverhalten (1)
- Emergence (1)
- Emerging (1)
- Emerging infectious disease (1)
- Emulsion polymerization (1)
- Energetic stress (1)
- Expansion (1)
- External beam (1)
- FE-Simulation (1)
- FEM-Simulation (1)
- Fail-safe (1)
- Feinblech Stähle (1)
- Feuerwiderstand (1)
- Filterstaub (1)
- Finite element (1)
- Fließkurven (1)
- Flüssigchromatographie (1)
- Fracture toughness (1)
- Fungi (1)
- Fungiculture (1)
- GC-MS (1)
- Gemstones (1)
- Ground water (1)
- Gut symbionts (1)
- He-Diffusion (1)
- Hg-Porosimetrie (1)
- Host and symbiont ecology (1)
- Human serum (1)
- Hunger (1)
- Hydrogen (1)
- Hypermutation (1)
- IAPV (1)
- IUPAC physical and biophysical chemistry division (1)
- Image analysis (1)
- Insect evolution (1)
- Integritätsprüfung (1)
- Internal pressure test (1)
- Isoptera (1)
- J integral (1)
- J-Integral (1)
- Jerrycan (1)
- Kennwerte für die FEM-Simulation (1)
- Kerbschlagarbeit (1)
- Korrelation (1)
- Kriechen (1)
- Lebensdauerabschätzung (1)
- Lebensdauerberechnung (1)
- Liquid chromatography (1)
- Liquid intrusion (1)
- Loss (1)
- Länge (1)
- MALDI-TOF-MS (1)
- MMA-Diffusion (1)
- Macrocycles (1)
- Macroporous materials (1)
- Magnetic stray fields (1)
- Magnetomechanical effect (1)
- Major transition (1)
- Marek's Disease Virus (1)
- Mast (1)
- Mercury prorsimetry (1)
- Meta-analysis (1)
- Metabolism (1)
- Metal magnetic memory (1)
- Metallic glasses (1)
- Methodenkopplung (1)
- Microbe (1)
- Microbiota (1)
- Microparticles (1)
- Microsporidia (1)
- Mikrostruktur (1)
- Molecular clock (1)
- Molecular dynamics (1)
- Monotonic and cyclic stress-strain curve (1)
- Multiaxial deformation (1)
- Multicellularity (1)
- Multiple infection (1)
- Myocardial Imaging (1)
- Natural hazards (1)
- Natural products discovery (1)
- Normung (1)
- Nosema (1)
- Nosema ceranae (1)
- Notch (1)
- Octopamine (1)
- Optische Mikroskopie (1)
- Parallel-Seismik (1)
- Parasite (1)
- Per- and Polyfluoroalkyl substances (PFAS) (1)
- Permeation (1)
- Pfahl (1)
- Phosphorus (1)
- Pile testing (1)
- Plastic deformation (1)
- Plastisch (1)
- Pollinator (1)
- Poly(butylene terephthalate) (1)
- Poly(ethylene terephthalate) (1)
- Polymerase mutant (1)
- Pore size characterization (1)
- Priority effect (1)
- Proofreading deficient (1)
- Quantitative Analyse (1)
- RNA virus (1)
- Radiopharmaceuticals (1)
- Raman spectroscopy (1)
- Reaktives Brandschutzsystem (1)
- Rechnerisch (1)
- Reference porous materials (1)
- Remediation (1)
- Risswiderstandskurve (1)
- Round Robin (1)
- Schlacke (1)
- Schmelzen (1)
- Sesistance (1)
- Shaker (1)
- Simulation (1)
- Social insect (1)
- Social insects (1)
- Sociality (1)
- Software (1)
- Spillover (1)
- Stahl (1)
- Stahlblech (1)
- Standardisierte Kennwertermittlung (1)
- Starvation (1)
- Statistical reconstruction of porous solids (1)
- Strain-life curve (1)
- Structural steel (1)
- Strukturen (1)
- Subsocial (1)
- Symbiosis (1)
- Technetium (1)
- Technetium-99m (1)
- Technical crack (1)
- Technische Silikate (1)
- Technischer Anriss (1)
- Teilentlastungsverfahren (1)
- Termite-associated microbes (1)
- Therapeutic Drug Monitoring (1)
- Thin steel sheets (1)
- Time dependent modeling (1)
- Titanaluminide (1)
- Topography (1)
- Transcriptomics (1)
- Transient state (1)
- Unloading compliance (1)
- Varroa destructor (1)
- Verfahrenstechnik (1)
- Verfahrensübersicht (1)
- Verwertung (1)
- Viruses (1)
- Wall thickness (1)
- Wassersättigung (1)
- Wastewater (1)
- XANES spectroscopy (1)
- XPCS (1)
- Yeast (1)
- Zugglied (1)
- Zyklisch (1)
- Zyklische Kennwerte (1)
- Zyklische Werkstoffkennwerte (1)
- Zügige und zyklische Spannung-Dehnung-Kurve (1)
- microspectroscopy (1)
- soil (1)
- underexplored phyla (1)
- x-ray diffraction (1)
Organisationseinheit der BAM
- 4 Material und Umwelt (15)
- 4.0 Abteilungsleitung und andere (11)
- 4.1 Biologische Materialschädigung und Referenzorganismen (5)
- 4.3 Schadstofftransfer und Umwelttechnologien (2)
- 5 Werkstofftechnik (2)
- 8 Zerstörungsfreie Prüfung (2)
- 1 Analytische Chemie; Referenzmaterialien (1)
- 1.8 Umweltanalytik (1)
- 4.4 Thermochemische Reststoffbehandlung und Wertstoffrückgewinnung (1)
- 5.0 Abteilungsleitung und andere (1)
Technetium- and Rhenium-Labelled Fatty Acids as Model Compounds for Myocardial Metabolism Imaging
(2002)
In an attempt to develop new technetium-based radiopharmaceuticals for the non-invasive diagnosis of oxidative myocardial metabolism, rhenium model compounds according to the 3+1' mixed ligand approach as well as the organometallic tricarbonyl-design were synthesized. The geometrical impact of different chelates on the integrity of the fatty acid head structure was determined by single crystal X-ray analyses. To evaluate the diagnostic potential of the analogous Technetium-99m compounds, fatty acid complexes of the 3+1' mixed ligand type were prepared on n.c.a.-level and studied in the isolated constant-flow-perfused guinea pig heart model; compared to established [123I]Iodine-labelled fatty acid radiotracers, the tested Technetium-99m derivatives showed a specific, however significantly lower myocardial extraction rate.
In an attempt to develop new technetium-based radiopharmaceuticals for the noninvasive diagnosis of myocardial metabolism, we have synthesized three examples of novel metal-containing fatty acid derivatives according to the 3+1 mixed-ligand and the Schiff base/tricarbonyl design. The chelates contain the metal core in the oxidation states +5 and +1, respectively, and are attached to the end-position of a fatty acid chain. The complex formation was accomplished by ligand-exchange reactions with three different rhenium precursors, whereas the inactive rhenium metal was utilized as a surrogate of the technetium radionuclide. The molecular structures of the fatty acid complexes 7, 10 and 14 were determined by single-crystal X-ray diffraction analyses and impressively show a general problem in technetium tracer research, namely the significant structural alterations of bioactive molecules by coordination even to small metal chelates.
The role of 1,1-diphenylethylene (DPE) in radical emulsion polymerization of methyl methacrylate is investigated. The presence of DPE causes a strong decrease in both the rate of polymerization and the molecular weight. According to the results of structure analysis by means of MALDI-TOF mass spectrometry, UVvis spectroscopy, and 1HNMR spectroscopy, DPE is incorporated in the copolymer chain exclusively as a reactive recombinant ?,p-dimer, underlining the peculiar role of DPE in radical polymerizations.
A new method for the physical characterization of rock matrices for use in site investigations of nuclear waste repositories has been developed. The method can provide information needed in the assessment of the performance of the geosphere working as a natural barrier retarding the migration of radionuclides by diffusion into the rock matrix. Most conventional methods for the physical characterization of rocks give only bulk information. The combination of mercury porosimetry and computer tomography can give 3-D data on mineral-specific porosity distributions with additional pore size information. Additionally, limits for mineral-specific internal surface areas can be estimated, which is essential for the assessment of water-rock interaction and reactive interaction with radionuclides (sorption). Results of measurements on granitic rock (granodiorite) from the Baltic shield are discussed and integrated with results by complementary methods.