Results 121 to 130 of about 954 (228)

Effects of Comet Encke's Meteoroid Stream on the Seasonal Variation of Mercury's Ca Exosphere

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 6, June 2026.
Abstract Mercury's calcium (Ca) exosphere, observed by NASA's MESSENGER mission, exhibits high temperatures (>50000 K) and pronounced seasonal variability, with its source mainly on the dawn side. Enhanced Ca emission near True Anomaly Angle (TAA) ∼25° and ∼150° has been attributed to Comet 2P/Encke meteoroid streams.
M. Moroni   +18 more
wiley   +1 more source

AI Revolution and Warfare: A New Paradigm Shift in Defence Procurement, Restructuring, Training, and Recruitment

open access: yesCanadian Public Administration, Volume 69, Issue 2, Page 250-277, June 2026.
Abstract The war in Ukraine and Israel's successful operations have demonstrated the apparent shift in military operations, strategic defence spending, and innovations. Drawing parallels to the industrial revolution and how it slowly transferred military procurement, training, and deployment, the current study also highlights the AI revolution and the ...
Ehsan Jozaghi
wiley   +1 more source

The Determinants of Negotiated Pharmaceutical Prices

open access: yesThe Journal of Industrial Economics, Volume 74, Issue 2, Page 234-260, June 2026.
ABSTRACT We focus on the determinants of pharmaceutical drug prices. Using data from the Brazilian pharmaceutical market, we find large variations in drug prices across buyers, drug classes, and time periods. Our estimation results provide evidence that transaction‐specific determinants between buyers and sellers (e.g., transaction volume, buyer's ...
Ralph B. Siebert   +2 more
wiley   +1 more source

Impact of Selected Metal Oxides on the Thermodynamics of Solid Rocket Propellant Combustion. [PDF]

open access: yesMolecules
Janowska K   +6 more
europepmc   +1 more source

Wartime Leadership as a Bridge Over Troubled Waters: A Representative Bureaucracy Perspective on Ethnically Homogeneous and Heterogeneous Schools

open access: yesPublic Administration, Volume 104, Issue 2, Page 359-370, June 2026.
ABSTRACT The representative bureaucracy literature asserts that minority personnel in public organizations can promote their social group either through their own behavior or by influencing other staff members or focal citizens. However, these phenomena have not been examined in wartime settings in ethnically homogeneous and heterogeneous organizations.
Maayan Davidovitz, Chen Schechter
wiley   +1 more source

Nano-Iron as a Catalyst in Isocyanate-Free Rocket Propellants. [PDF]

open access: yesPolymers (Basel)
Chmielarek M   +2 more
europepmc   +1 more source

Near-future rocket launches could slow ozone recovery. [PDF]

open access: yesNPJ Clim Atmos Sci
Revell LE   +9 more
europepmc   +2 more sources

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