Results 51 to 60 of about 586,778 (202)

Dust Properties of Comets Observed by Spitzer

open access: yesThe Planetary Science Journal, 2023
As comets journey into the inner solar system, they deliver particulates and volatile gases into their comae that reveal the most primitive materials in the solar system.
David E. Harker   +3 more
doaj   +1 more source

Digital Transformation of Retail Work: The Rise of Chaotic Rationalisation

open access: yesBritish Journal of Industrial Relations, Volume 64, Issue 2, Page 378-393, June 2026.
ABSTRACT We examine how new digital technologies are transforming labour processes in frontline jobs in United States (US) store‐based retail, examining the US as an extreme case of labour market liberalisation. Research on technological change presents three scenarios: job displacement, job enrichment and ‘digital Taylorism’ involving heightened ...
Chris Tilly, Françoise Carré
wiley   +1 more source

The formation of the Oort cloud in open cluster environments [PDF]

open access: yesIcarus, 2008
We study the influence of an open cluster environment on the formation and current structure of the Oort cloud. To do this, we have run 19 different simulations of the formation of the Oort Cloud for 4.5 Gyrs. In each simulation, the solar system spends its first 100 Myrs in a different open cluster environment before transitioning to its current field
Kaib, Nathan A., Quinn, Thomas
openaire   +2 more sources

New Technology and Work: AI and the Coming Struggle to Democratise Work Organisation

open access: yesSociology Compass, Volume 20, Issue 6, June 2026.
ABSTRACT This paper explores AI‐related changes at work and considers the adequacy of our conceptual tools in the light of contemporary advances in AI. These considerations raise the question of whether sociologists of work should engage more in advocating for worker voice in technology decision‐making. Using the concept of work organisation, I draw on
Stephen J. Frenkel
wiley   +1 more source

The destruction of an Oort Cloud in a rich stellar cluster [PDF]

open access: yesAstronomy & Astrophysics, 2017
It is possible that the formation of the Oort Cloud dates back to the earliest epochs of solar system history. At that time, the Sun was almost certainly a member of the stellar cluster, where it was born. Since the solar birth cluster is likely to have been massive (1000--10 000 Msol), and therefore long-lived, an issue concerns the survival of such a
T. Nordlander, H. Rickman, B. Gustafsson
openaire   +3 more sources

Galactic tide and local stellar perturbations on the Oort cloud: creation of interstellar comets [PDF]

open access: yes, 2019
Comets in the Oort cloud evolve under the influence of internal and external perturbations, such as giant planets, stellar passages, and the Galactic gravitational tidal field.
S. P. Zwart   +7 more
core   +1 more source

Transport of Water in a Transient, Impact‐Generated Atmosphere on Mercury

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract Mercury's polar cold traps host water ice deposits that are likely populated with impact‐delivered water via Mercury's exosphere. However, Mercury's near‐sun location experiences an extremely high photodestruction rate that rapidly destroys water with a timescale of only ∼3.5 hr.
J. K. Steckloff   +4 more
wiley   +1 more source

The Oort Cloud and long-period comets

open access: yes, 2014
This review starts with a brief historical overview of the subject, after which some recent papers attempting to improve the understanding of comet injection from the Oort Cloud and the origin of new comets are discussed. Special attention is paid to the
Rickman, Hans,
core   +1 more source

Stratosphere‐Troposphere Exchange of Ozone and CO Over the North Pacific: Roles of Different Types of Rossby Wave Breaking With Multiple Chemical‐Reanalysis Perspectives

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 6, 28 March 2026.
Abstract In this study, we investigate the characteristics of stratosphere‐troposphere exchange (STE) of ozone and carbon monoxide (CO) over the North Pacific on the 350 K isentropic surface during 2005–2021 using two chemical reanalyses (Copernicus Atmosphere Monitoring Service and TCR‐2).
Haosen Xi, Masatomo Fujiwara
wiley   +1 more source

Discovery of a Candidate Inner Oort Cloud Planetoid [PDF]

open access: yesThe Astrophysical Journal, 2004
to be published in ApJL, 10 August ...
Brown, Michael E.   +2 more
openaire   +3 more sources

Home - About - Disclaimer - Privacy