Results 71 to 80 of about 371,767 (221)

Remarks about the thermodynamics of astrophysical systems in mutual interaction and related notions [PDF]

open access: yes, 2016
General aspects about the thermodynamics of astrophysical systems are discussed, overall, those concerning to astrophysical systems in mutual interaction (or the called \emph{open astrophysical systems}). A special interest is devoted along the paper to clarify several misconceptions that are still common in the recent literature, such as the direct ...
arxiv   +1 more source

Astrophysics in 1992 [PDF]

open access: yesPublications of the Astronomical Society of the Pacific, 1993
1992 was an astrophysically exciting year for most of us. E-mail lines buzzed with news of the COBE anistropy, the Gallex solar-neutrino flux, a pulsar with two planets, and the remarkable isotropy of the gamma ray burst sources seen by CGRO. Meanwhile, more routine work continued on problems like star formation that have been around for decades and ...
openaire   +2 more sources

CosPA2013: Outlook [PDF]

open access: yesarXiv, 2014
Outlook talk presented at the 10th International Symposium on Cosmology and Particle Astrophysics (CosPA2013)
arxiv  

Zehn Jahre Gaia‐Messungen: Die hochgenaue Kartierung des Himmels

open access: yesPhysik in unserer Zeit, EarlyView.
Das astrometrische Weltraumobservatorium Gaia der Europäischen Weltraumorganisation hat die astrometrische Forschung revolutioniert, indem es unter anderem präzise Positionen, Bewegungen und Entfernungen von fast zwei Milliarden Himmelsobjekten gemessen hat. Damit stellt es wertvolle Daten für fast alle Gebiete der Astrophysik bereit. Nach dem Ende der
Stefan Jordan
wiley   +1 more source

Simulation of a Three‐Nucleons System Transition on Quantum Circuits

open access: yesAdvanced Quantum Technologies, EarlyView.
A general procedure is presented to calculate the transition probability for two nuclear states and a transition operator. The ground state is approximated through the variational quantum eigensolver and the first excited one using more sophisticated variational algorithms.
Luca Nigro, Carlo Barbieri, Enrico Prati
wiley   +1 more source

Astrophysics in 1991

open access: yesPublications of the Astronomical Society of the Pacific, 1992
Science, notoriously, progresses amoeba-like, thrusting out pseudopods in unpredictable directions and dragging in the rest of the body after or, occasionally, retreating in disorder. This review attempts to shine a narrow and not unprejudiced beam of light on areas of astrophysics where the author believes that something interesting happened in 1991 ...
openaire   +3 more sources

Hydrodynamical scaling laws for astrophysical jets [PDF]

open access: yesarXiv, 2005
The idea of a unified model for all astrophysical jets has been considered for some time now. We present here some hydrodynamical scaling laws relevant for all type of astrophysical jets, analogous to those of Sams et al. (1996). We use Buckingham's Pi theorem of dimensional analysis to obtain a family of dimensional relations among the physical ...
arxiv  

Impact of Teachers With Research Experiences: Student Gains in STEM Career Awareness, Perception of Value of STEM Learning, and Persistence in STEM Course Tasks

open access: yesScience Education, EarlyView.
ABSTRACT Research Experiences for Teachers (RET) programs are a burgeoning approach to engage teachers in STEM (science, technology, engineering, mathematics) research that they can translate into their K‐12 classrooms. Despite an increase in studies of RETs, there is a need for comparison of RET and non‐RET teachers' student outcomes.
John Keller   +13 more
wiley   +1 more source

Exposing and Challenging “Grit” in Physics Education

open access: yesScience Education, EarlyView.
ABSTRACT In STEM education, grit is increasingly the focus of research, with scholars and educators seeking to develop and test interventions that will enhance persistence. As part of the special issue Centering Affect and Emotion Toward Justice and Dignity in Science Education, in this paper, we use interviews with 12 white physics faculty to show ...
Amy Robertson   +3 more
wiley   +1 more source

How Uncertain is the Emergence of Knowledge Related to the United Nations Sustainable Development Goals? An Analysis of Scientific Knowledge Diversification at Utrecht University

open access: yesSustainable Development, EarlyView.
ABSTRACT The study of synergies and trade‐offs among the Sustainable Development Goals (SDGs) has captured growing scientific interest. However, how scientific knowledge addressing multiple SDGs emerges and contributes to improving synergies and addressing trade‐offs remains unclear.
Oscar Yandy Romero‐Goyeneche   +2 more
wiley   +1 more source

Home - About - Disclaimer - Privacy