Results 71 to 80 of about 102,836 (336)

Warme dichte Materie in Natur und Labor: Ein ungewöhnlicher Materiezustand

open access: yesPhysik in unserer Zeit, EarlyView.
Warme dichte Materie rückt immer mehr in den Fokus, nicht nur in der Physik und Astronomie, sondern auch in den Ingenieurswissenschaften und sogar der Politik. Es handelt sich um interessante, aber auch komplizierte Zustände von Materie, die unser Verständnis ihrer Funktionsweise herausfordern.
Jan Vorberger   +2 more
wiley   +1 more source

Stardust in meteorites [PDF]

open access: yesProceedings of the National Academy of Sciences, 2011
Primitive meteorites, interplanetary dust particles, and comets contain dust grains that formed around stars that lived their lives before the solar system formed. These remarkable objects have been intensively studied since their discovery a little over twenty years ago and they provide samples of other stars that can be studied in the laboratory in ...
openaire   +3 more sources

Organic Reactivity Matters for the Emergence of Life: Kinetic Barriers and Molecular Diversity Are Suggested as Crucial Factors by Emerging Autonomous System Models

open access: yesChemSystemsChem, EarlyView.
Self‐organisation may result from organic systems fed with free energy provided that reactivity becomes a determining factor. The propensity of carbon to form covalent bonds can give rise to kinetically stable thermodynamically activated compounds possibly undergoing non‐linear kinetic processes.
Robert Pascal
wiley   +1 more source

Multi-satellite Universat-SOCRAT mission for monitoring technogenic and natural hazards

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2019
The natural and “man-made” space environment generates serious risks for the implementation of space missions, both automatic and human. The main natural and technogenic risk factors that limit or pose a threat to the implementation of space-based ...
V. A. Sadovnichiy   +20 more
doaj   +1 more source

The Discovery and History of the Dalgaranga Meteorite Crater, Western Australia

open access: yes, 2013
The Dalgaranga meteorite crater, 100 km northeast of Yalgoo, Western Australia, was one of the first impact structures identified in Australia, the smallest isolated crater found in Australia, and the only confirmed crater in the world associated with a ...
Hamacher, Duane W., O'Neill, Craig
core   +1 more source

Ontogeny of foraging behaviour in an opportunistic gull inhabiting urban marine ecosystems

open access: yesWildlife Biology, EarlyView.
Urbanization affects ecosystems by reducing biodiversity and displacing species from native habitats. While some suffer, others, like urban wildlife, adapt through innovative feeding and behaviours that improve their fitness in human‐altered settings. Despite research on wildlife in urban areas, the development of foraging behaviour in urban species is
Joan Navarro   +7 more
wiley   +1 more source

Shock-transformation of whitlockite to merrillite and the implications for meteoritic phosphate

open access: yesNature Communications, 2017
Quantifying the amount of water in meteorites remains challenging, with minerals the key to understanding water contents. Here, Adcocket al. perform shock experiments on H+-bearing whitlockite demonstrating that it may transform into anhydrous merrillite,
C. T. Adcock   +10 more
doaj   +1 more source

Viroids-First—A Model for Life on Earth, Mars and Exoplanets

open access: yesGeosciences, 2019
The search for extraterrestrial life, recently fueled by the discovery of exoplanets, requires defined biosignatures. Current biomarkers include those of extremophilic organisms, typically archaea.
Karin Moelling, Felix Broecker
doaj   +1 more source

University Scholar Series: Monika Kress [PDF]

open access: yes, 2011
Meteorites and the Origin of Habitable Worlds On November 30, 2011, Dr. Monika Kress spoke in the University Scholar Series hosted by Provost Gerry Selter at the Dr. Martin Luther King, Jr. Library.
Kress, Monika
core   +1 more source

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