1,156 research outputs found
The Definition of the Boundaries of Marine Mining Areas in International Waters
This paper describes in simple terms for non-technical people how the boundaries of marine mining areas can be logically defined, confidently identified whilst operating in the area and the activities therein uniformly mapped. Technical detail and complexities are specifically omitted
Genetic Studies of Induced Mutants in \u3ci\u3eMelilotus alba\u3c/i\u3e. I. Short-Internode Dwarf, Curled Leaf, Multifoliolate Leaf, and Cotyledonary Branching
Information obtained from the F1, F2, and F3 generations of crosses between the normal annual M. alba progenitor line and the four mutants, short-internode dwarf, curled leaf, multifoliolate leaf, and cotyledonary branching, indicates that each character is conditioned by a single pair of alleles. The multifoliolate leaf character is dominant over the normal phenotype; the other three mutant characters are recessive. The symbols dw, cl, Mf, and cb are proposed as designations for the respective mutant genes
Special Lagrangian cones with higher genus links
For every odd natural number g=2d+1 we prove the existence of a countably
infinite family of special Lagrangian cones in C^3 over a closed Riemann
surface of genus g, using a geometric PDE gluing method.Comment: 48 page
Gamma radiation survey of the LDEF spacecraft
The retrieval of the Long Duration Exposure Facility spacecraft in January 1990 after nearly six years in orbit offered a unique opportunity to study the long term buildup of induced radioactivity in the variety of materials on board. We conducted the first complete gamma-ray survey of a large spacecraft on LDEF shortly after its return to earth. A surprising observation was the Be-7 activity which was seen primarily on the leading edge of the satellite, implying that it was picked up by LDEF in orbit. This is the first known evidence for accretion of a radioactive isotope onto an orbiting spacecraft. Other isotopes observed during the survey, the strongest being Na-22, are all attributed to activation of spacecraft components. Be-7 is a spallation product of cosmic rays on nitrogen and oxygen in the upper atmosphere. However, the observed density is much greater than expected due to cosmic-ray production in situ. This implies transport of Be-7 from much lower altitudes up to the LDEF orbit
Forage Quality and Performance of Yearlings Grazing Switchgrass Strains Selected for Differing Digestibility
Switchgrass (Panicum virgatum) is a native, perennial warm-season grass commonly used as summer pasture. Three strains of switchgrass with different in vitro DM disappearance (IVDMD) values were evaluated with yearling cattle (Bos taurus) in three replicated grazing trials All strains were similar in genetic background, maturity and yield potential. \u27Trailblazer\u27 (high-IVDMD) resulted in higher (P \u3c .05) ADG than \u27Pathfinder\u27 and \u27low-IVDMD\u27. Available forage of Trailblazer had higher IVDMD than Pathfinder and low-IVDMD. The IVDMD differences among strains were similar throughout the season; IVDMD declined between .3 and .5 percentage units per day. Forage availability, CP, NDF and ADF, permanganate lignin and ash were similar among strains. This study documents that plant breeders can select switchgrass plants for higher IVDMD and that strains consisting of progeny of these plants can result in higher animal gains than strains consisting of progeny of unselected or low-IVDMD plants with similar genetic background, forage yield, maturity, morphology and chemical composition
Foraging Quality and Performance of Yearlings Grazing Switchgrass Strains Selected for Differing Digestibility
Switchgrass (Panicum virgatum) is a native, perennial warm-season grass commonly used as summer pasture. Three strains of switchgrass with different in vitro DM disappearance (IVDMD) values were evaluated with yearling cattle (Bos taurus) in three replicated grazing trials. All strains were similar in genetic background, maturity and yield potential. \u27Trailblazer\u27 (high-IVDMD) resulted in higher (P \u3c .05) ADG than \u27Pathfinder\u27 and \u27low-IVDMD\u27. Available forage of Trailblazer had higher IVDMD than Pathfinder and low-IVDMD. The IVDMD differences among strains were similar throughout the season; IVDMD declined between 0.3 and 0.5 percentage units per day. Forage availability, CP, NDF and ADF, permanganate lignin and ash were similar among strains. This study documents that plant breeders can select switchgrass plants for higher IVDMD and that strains consisting of progeny of these plants can result in higher animal gains than strains consisting of progeny of unselected or low-IVDMD plants with similar genetic background, forage yield, maturity, morphology and chemical composition
Foraging Quality and Performance of Yearlings Grazing Switchgrass Strains Selected for Differing Digestibility
Switchgrass (Panicum virgatum) is a native, perennial warm-season grass commonly used as summer pasture. Three strains of switchgrass with different in vitro DM disappearance (IVDMD) values were evaluated with yearling cattle (Bos taurus) in three replicated grazing trials. All strains were similar in genetic background, maturity and yield potential. \u27Trailblazer\u27 (high-IVDMD) resulted in higher (P \u3c .05) ADG than \u27Pathfinder\u27 and \u27low-IVDMD\u27. Available forage of Trailblazer had higher IVDMD than Pathfinder and low-IVDMD. The IVDMD differences among strains were similar throughout the season; IVDMD declined between 0.3 and 0.5 percentage units per day. Forage availability, CP, NDF and ADF, permanganate lignin and ash were similar among strains. This study documents that plant breeders can select switchgrass plants for higher IVDMD and that strains consisting of progeny of these plants can result in higher animal gains than strains consisting of progeny of unselected or low-IVDMD plants with similar genetic background, forage yield, maturity, morphology and chemical composition
PHYSICAL ASPECTS OF REVERSIBLE INACTIVATION OF ENDOTOXIN *
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/74729/1/j.1749-6632.1966.tb52394.x.pd
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