Results 121 to 130 of about 13,825,197 (293)
American 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
Nonadiabatic quantum chaos in atom optics
, 2012 Coherent dynamics of atomic matter waves in a standing-wave laser field is studied. In the dressed-state picture, wave packets of ballistic two-level atoms propagate simultaneously in two optical potentials.
Prants, S. V.
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How to make people do things with words
Noûs, 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
Journal of Materials Research and TechnologyAlMgB14-based ceramics have emerged as promising materials for ballistic protection due to their ultra-hardness and low density. However, their dynamic mechanical behaviour and ballistic performance remain underexplored.
Yanyan Lu +6 more
doaj +1 more source
Paving the Way: The Influence of Early Research and Development Programs on Apollo, Saturn, and Legacy System Development [PDF]
As we celebrate the 50th anniversary of the first successful human landings on the surface of the Moon in 1969, it is insightful to review the many historic accomplishments that contributed to this astounding human achievement.
Cockrell, Charles E., Jr. +1 more
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Seed pretreatment length when producing seeds for restoration may impact seed dormancy in offspring
Restoration 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
Experimental 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
Experimental Physiology, EarlyView.Abstract Synaptic input to the motoneuron pool is altered during fatiguing muscle contractions. In humans, the corticospinal tract is often studied, with equivocal findings regarding its role in the reduction of force. To date, the involvement of the reticulospinal tract during states of fatigue has not been explored.
Oliver Hayman +8 more
wiley +1 more source
Applications of computational modeling in ballistics [PDF]
The development of the technology of ballistics as applied to gun launched Army weapon systems is the main objective of research at the U.S. Army Ballistic Research Laboratory (BRL).
Sturek, Walter B.
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Experimental Physiology, EarlyView.Abstract figure There is positive covariation in the amplitudes of motor evoked potentials (MEPs) generated by (near simultaneous) stimulation of the two motor cortices. That is, larger responses to stimulation of the left motor cortex tend to be accompanied by larger responses to stimulation of the right motor cortex, and smaller responses to ...
Richard G. Carson
wiley +1 more source