Results 41 to 50 of about 2,402 (235)

A Study Demonstrating That Using Gravitational Offset to Prepare Extraterrestrial Mobility Missions Is Misleading

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT Recently, there has been a surge of international interest in extraterrestrial exploration targeting the Moon, Mars, the moons of Mars, and various asteroids. This contribution discusses how current state‐of‐the‐art Earth‐based testing for designing rovers and landers for these missions currently leads to overly optimistic conclusions about ...
Wei Hu   +6 more
wiley   +1 more source

Computation of asteroid proper elements: Recent advances [PDF]

open access: yesSerbian Astronomical Journal, 2017
The recent advances in computation of asteroid proper elements are briefly reviewed. Although not representing real breakthroughs in computation and stability assessment of proper elements, these advances can still be considered as important improvements
Knežević Z.
doaj   +1 more source

Kinship through code, personhood as node: AI afterlives and new technologies of the self Parenté par le code, personne nodale : vie posthume dans l'IA et nouvelles technologies du moi

open access: yesJournal of the Royal Anthropological Institute, EarlyView.
This article examines how emerging generative AI technologies in Europe and North America are being used to reanimate the dead, prompting users to define the ‘edges’ of self and personhood through coding practices. These technologies invite new engagements with fundamental questions of relatedness and the construction of the self, challenging and ...
Jennifer Cearns
wiley   +1 more source

Third derivatives of the integrable part of an asteroid Hamiltonian [PDF]

open access: yesSerbian Astronomical Journal, 2007
To apply the theorem of Nekhoroshev (1977) to asteroids, one first has to check whether a necessary geometrical condition is fulfilled: either convexity, or quasi-convexity, or only a 3-jet non-degeneracy.
Pavlović R.
doaj   +1 more source

Faith, gender and financial investment: Providence and Presbyterianism in Scotland and abroad

open access: yesAsia‐Pacific Economic History Review, EarlyView.
Abstract Mid‐nineteenth century fictional representations of misdirected investment by widows and clergy position them as ignorant in financial matters and hence pitiable. While scholars have recognised female agency in nineteenth century commerce, insufficient attention has been paid to religious belief in financial decision‐making.
Jennifer Jones, Susan Poole
wiley   +1 more source

Ecosystem services provided by spiders

open access: yesBiological Reviews, EarlyView.
ABSTRACT Spiders, ubiquitous and abundant predators in terrestrial ecosystems, often are the subjects of an unjust negative perception. However, these remarkable creatures stand as unsung heroes within our ecosystems, contributing a multitude of ecosystem services critical to human well‐being.
Pedro Cardoso   +13 more
wiley   +1 more source

TITIUS-BODE`S Relation and 55 Cancri [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2008
Two kinds of important issues on Titius-Bode`s relation have been discussed up to now: one is if there is a simple mathematical relation between distances of natural bodies orbiting a central body, and the other is if there is any physical basis for such
Heon-Young Chang
doaj   +1 more source

Social Justice as a Catalyst for Ecumenical Engagement

open access: yesThe Ecumenical Review, EarlyView.
Abstract This article provides a comprehensive overview of the historical formation of the Federal Council of Churches of Christ in America (FCC), examining the social and political context in the United States that shaped its adoption of ecumenical practices focused on social justice.
Geneva Blackmer
wiley   +1 more source

CAN HISTORY ABSOLVE? CAN HISTORY JUDGE?

open access: yesHistory and Theory, EarlyView.
ABSTRACT Appealing to history, rather than to God, to provide an ultimate judgment about human actions can have a justificatory or consolatory function. The former grants proleptic absolution for acts that may be morally dubious because of their benign consequences, while the latter enables victims in the present to gain a measure of relief by ...
MARTIN JAY
wiley   +1 more source

Motion of Test Bodies in a Quasi-Newtonian Potential. I. Qualitative Classification of the Motion Trajectories

open access: yesOpen Astronomy, 2003
The motion of test bodies in a Quasi-Newtonian potential is examined. Main attention is paid to the qualitative classification of all possible trajectories.
Pyragas K., Svirskas K.
doaj   +1 more source

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