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Competition for pollen deposition space on pollinators generates last‐male advantage
Functional Ecology, Volume 39, Issue 2, Page 555-566, February 2025.Read the free Plain Language Summary for this article on the Journal blog. Abstract Many plants have precise pollen placement strategies, ensuring that large amounts of pollen are deposited on small and discrete areas of pollinators' bodies. This may lead to male–male competition if pre‐existing pollen (1) is smothered or displaced by pollen from ...
Pamela C. Santana +4 more
wiley +1 more source
NASA Thesaurus Supplement: A three part cumulative supplement to the 1982 edition of the NASA Thesaurus (supplement 3) [PDF]
The three part cumulative NASA Thesaurus Supplement to the 1982 edition of the NASA Thesaurus includes Part 1, Hierarchical Listing, Part 2, Access Vocabulary, and Part 3, Deletions.
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Space transportation systems, launch systems, and propulsion for the Space Exploration Initiative: Results from Project Outreach [PDF]
A number of transportation and propulsion options for Mars exploration missions are analyzed. As part of Project Outreach, RAND received and evaluated 350 submissions in the launch vehicle, space transportation, and propulsion areas.
Augenstein, B. +4 more
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The scanning modulation collimator experiment designed to identify the optical counterparts of celestial X-ray sources is described. Identification of galactic sources is discussed.
Doxsey, R.
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All-sky monitor observations of flares from Aquila X-1 [PDF]
The All-Sky Monitor on Ariel 5 has observed the Aquila-Serpens region on a quasi-continuous basis since launch in 1974 October. During this time Aql X-1 exhibited major flares in 1975 June and 1976 June, with the measured X-ray intensities increasing ...
Boldt, E. A. +3 more
core +1 more source
, 2012 Account by Lieutenant-Colonel Roger Rowley, OC, Stormont, Dundas & Glengarry Highlanders given to Historical Officer, 21 September ...
Rowley, Roger
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Modeling of combustion processes of stick propellants via combined Eulerian-Lagrangian approach [PDF]
This research is motivated by the improved ballistic performance of large-caliber guns using stick propellant charges. A comprehensive theoretical model for predicting the flame spreading, combustion, and grain deformation phenomena of long, unslotted ...
Athavale, M. M. +2 more
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Analysis of sounding rocket data regarding celestial X-ray sources Final report [PDF]
Celestial observation, sounding rocket data, and emission spectrum used to identify Sco X-1 of Scorpio ...
Giacconi, R. +3 more
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Hydrogen Fire Detection System Features Sharp Discrimination [PDF]
, 1966 Hydrogen fire detection system discovers fires by detecting the flickering ultraviolet radiation emitted by the OH molecule, a short-lived intermediate combustion product found in hydrogen-air flames.
Bright, C. S.
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Creating new opportunities for communicating about space science [PDF]
With the political and economic atmosphere changing so drastically, NASA has found it necessary to change its mission from one of exploration to that of accountability and application. These changes have made it difficult for NASA to access how its roles
Treise, Debbie
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