Results 131 to 140 of about 78,366 (275)

Complementarity in alliances: How strategic compatibility and hierarchy promote efficient cooperation in international security

open access: yesAmerican Journal of Political Science, EarlyView.
Abstract How can defense alliances reap the efficiency gains of working together when coordination and opportunism costs are high? Although specializing as part of a collective comes with economic and functional benefits, states must bargain over the distribution of those gains and ensure the costs of collective action are minimized.
J. Andrés Gannon
wiley   +1 more source

Sensing the sky's edge: Atmospheric insights into the Korean demilitarised zone

open access: yesArea, EarlyView.
Short Abstract In this paper, I demonstrate that novel and creative ‘atmospheric methods’ not only provide us with a means of overcoming difficulties around access to border spaces, but also more importantly afford us new insights into how atmospherically attuned things and the materialities of weather become entangled with and produce border ...
Madelaine A. Joyce
wiley   +1 more source

Israel's Post‐War Healthcare Obligations

open access: yesBioethics, EarlyView.
ABSTRACT Since the beginning of the Israel–Hamas war in 2023, the healthcare infrastructure within Gaza has been dismantled. While international humanitarian law mandates distinction between lawful targets (combatants and military objectives) and non‐lawful targets (civilians and civilian objects), and acknowledging the inherent complexities of ...
Daniel J. Hurst, Christopher A. Bobier
wiley   +1 more source

Ballistic Fitting Impact Point Prediction Based on Improved Crayfish Optimization Algorithm

open access: yesAerospace
To solve the problem of difficulty in predicting the impact point clearly and promptly during projectile flight, this paper proposes an improved ballistic-impact-point prediction method.
Baolu Yang, Liangming Wang, Jian Fu
doaj   +1 more source

Momentum transfer from oblique impacts [PDF]

open access: yes
A completely satisfactory experiment would be in a low gravity environment where the effect of momentum imparted by ejecta impacting the surface can be removed or controlled from momentum transfer during impact.
Gault, Donald E., Schultz, Peter H.
core   +1 more source

Ballistic impact on composite armour

open access: yes, 2007
Armoured vehicles in current military service are requiring ever more protection to enable them to carry out their mission in a safe, effective manner. This requirement is driving vehicle weight up to such an extent that the logistics of vehicle transport is becoming increasingly difficult. Composite materials are an important material group whose high
openaire   +1 more source

Static recrystallization of shocked calcite in Ries impact breccias

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract Calcite is prone to chemical and microstructural modifications, especially after having been strained at high stresses and strain rates, as during hypervelocity impact events. These modifications include precipitation from pore fluid as well as replacement of strained volumes by recrystallization. In calcite aggregates of a metagranite breccia
Claudia A. Trepmann   +8 more
wiley   +1 more source

How to make people do things with words

open access: yesNoûs, EarlyView.
Abstract Sometimes we do what other people tell us to. A natural thought is that the motivation to act on an instruction comes about rationally as the result of interpreting an imperative and deciding to act on it; that is, by updating on information that gets mediated through belief‐desire reasoning.
Henry Schiller, Shaun Nichols
wiley   +1 more source

Seed pretreatment length when producing seeds for restoration may impact seed dormancy in offspring

open access: yesRestoration Ecology, EarlyView.
Abstract Introduction Seed dormancy regulates germination timing to improve seedling survival. Many temperate species produce physiologically dormant seeds, requiring winter conditions (i.e. moist‐cold stratification) to overcome dormancy. Exposing seeds to suboptimal stratification lengths for restoration may alter genetic diversity and/or ...
Marcello De Vitis   +4 more
wiley   +1 more source

Isometric training at longer muscle–tendon complex lengths: A potential countermeasure to impaired neuro‐muscle–tendon function during space travel

open access: yesExperimental Physiology, EarlyView.
Abstract Manned space exploration to distant destinations, including Mars, continues to be an aspiration of humankind. Space travel does, however, present many challenges to the body, amongst which adaptation to microgravity is perhaps the largest. For instance, both short and long manned spaceflight missions have shown substantial deleterious effects ...
Gerard McMahon   +2 more
wiley   +1 more source

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