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Peter Hoppe

Researcher at Max Planck Society

Publications -  354
Citations -  13234

Peter Hoppe is an academic researcher from Max Planck Society. The author has contributed to research in topics: Presolar grains & Chondrite. The author has an hindex of 53, co-authored 336 publications receiving 12224 citations. Previous affiliations of Peter Hoppe include University of Bern & Washington University in St. Louis.

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Comet 81P/Wild 2 under a microscope.

Donald E. Brownlee, +185 more
- 15 Dec 2006 - 
TL;DR: The Stardust spacecraft collected thousands of particles from comet 81P/Wild 2 and returned them to Earth for laboratory study, and preliminary examination shows that the nonvolatile portion of the comet is an unequilibrated assortment of materials that have both presolar and solar system origin.
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Transgenetic studies implicate interactions between homologous PrP isoforms in scrapie prion replication.

TL;DR: The results argue that species specificity of scrapie prions resides in the PrP sequence and prion synthesis is initiated by a species-specific interaction between PrPSc in the inoculum and homologous PrPC.
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A single-cell view on the ecophysiology of anaerobic phototrophic bacteria

TL;DR: A method, Halogen In Situ Hybridization-Secondary Ion Mass Spectroscopy (HISH-SIMS), is developed and applied, and it is shown that it allows simultaneous phylogenetic identification and quantitation of metabolic activities of single microbial cells in the environment.
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Isotopic Compositions of Cometary Matter Returned by Stardust

TL;DR: Hydrogen, carbon, nitrogen, and oxygen isotopic compositions are heterogeneous among comet 81P/Wild 2 particle fragments; however, extreme isotopic anomalies are rare, indicating that the comet is not a pristine aggregate of presolar materials.
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Garnet-field melting and late-stage refertilization in "Residual" abyssal peridotites from the Central Indian Ridge

TL;DR: The role of residual garnet during melting under mid-ocean ridges has been the subject of many recent investigations as discussed by the authors, and major thermodynamic considerations suggest that this adiabatic and trace element mineral chemistry of residual abyssal peridotites decompression melting is a polybaric process.