299 research outputs found
Recommendation to the Pacific Grove City Council regarding the building located at 1352 Lighthouse Avenue regarding its historical significance
A communication to the Pacific Grove Historic Resources Committee to make a recommendation for a qualified evaluation of the building at the site 1352 Lighthouse Avenue. Includes details of the building's history and U.S. Navy tenants: The Naval Air Intercept Training Facility, Point Pinos, was located at the site from 1954-1961 and from 1964 1974, the Fleet Numerical Weather Facility Communications Division occupied the site. Includes a summary of the site's U.S. Navy training and operations history at the site, a list of sources and three relevant images
G72-25 Pruning Ornamental Plants (Revised August 1987)
March through May is the best time for pruning lawn trees, junipers, and flowering shrubs. Leaves are gone from the deciduous plants so we can see the branching structure and determine where cuts should be made. Healing occurs most rapidly when growth is starting in the spring, so wounds caused by pruning are quickly healed.
This NebGuide discusses when and how is the best time for pruning plants and the methods and tools to be used to complete the project
The reign of King Solomon in the light of archaeology.
Thesis (Ph.D.)--Boston Universit
Penstemon in Your Garden
A new race of hardy perennials is beginning to appear in American gardens. These are the penstemons, a genus of plants closely related to the familiar snapdragon, which may become important ornamentals as they be come better known to gardeners. The purpose of this bulletin is to show the possibility of the genus as an ornamental and to suggest species and species hybrids of possible value to Great Plains gardeners; to provide information about propagation and culture; and to encourage gardeners to engage in penstemon breeding as an avocation
PENSTEMON in your garden [Revised]
The Genus Penstemon
Penstemon Breeding: Emasculation • Pollen Collection • Pollination • Keeping Records
Selection of ParentaI MateriaIs
Species Crosses
Breeding Behavior
Sources of Breeding Material
Penstemon Propagation: Propagation by Seed • Propagation by Division and Layering • Propagation by Cuttings • Tip Cuttings • Single Node and Single Eye Cuttings • Striking the Cuttings • Rooting Mediums • Setting the Cuttings
Penstemon Diseases : Leaf Diseases • Soil Borne Diseases • Virus Diseases
Insects that Affect Penstemon: Aphids • Cutworms • False Plant Bug • Flea Beetle • Grasshoppers • Leaf hoppers • Slugs • Red Spider Mites • Tarnished Plant Bug or Lygus Bug • Verbena Bud Moth •
Reference
Naval Postgraduate School Historical Highlights: NPS Patents
Historical Highlights are provided by the Dudley Knox Librar
Sexual Reproduction and Early Development in the Estuarine Sea Anemone, Nematostella vectensis Stephenson, 1935
This dissertation: 1) determines the factor(s) responsible for spawning induction in NematosteJla vectensis; 2) isolates, describes, and documents the source of jelly from egg masses of N. vectensis; and 3) describes N. vectensis' early development.
Namatostella vectensis were maintained on a 7-day mussel feeding/water change regime over 159 days. Within 36 hours of mussel feeding/water change. 69.1% of females and 78.5% of males spawned reliably. Through manipulation of feeding, water change, oxygen and nitrogenous waste concentrations, spawning induction was found to be triggered by the oxygen concentration associated with water change, and not by feeding. Ammonia, anemones' major waste product, inhibited this induction in a concentration-dependent manner.
Female N. vectensis release eggs in a persistent jellied egg mass which is unique among the Actiniaria. The major component of this egg mass jelly was a positive periodic acid-Schiffs staining, 39.5-40.5 kD glycoprotein. Antibodies developed in rabbits against this glycoprotein bound to jelly of intact egg masses and to granules (~ 2.8 IJm in diameter) present in female anemone mesenteries and their associated filaments. Antibodies did not label male tissues.
Nematostella vecfensis embryos underwent first karyokinesis -60 minutes following the addition of sperm to eggs. Second nuclear division took place, followed by first cleavage, 90-120 minutes later. Each of the 4 blastomeres that resulted from first cleavage contained a single nucleus. Arrangement of these blastomeres ranged from radial to pseudospiral. Embryonic development was both asynchronous and holoblastic. Following formation of the 4-cell stage, 71% of embryos proceeded to cleave again to form an 8-cell stage. In each of the remaining 29% of embryos, a fusion of from 2-4 blastomeres resulted in 4 possible patterns which had no affect on either cleavage interval timing or subsequent development. The fusion event was not due to ooplasmic segregation. Blastomeres isolated from 4-celled embryos were regulative and developed into normal planula larvae and juvenile anemones that were 1/4 the size of those that developed from intact 4-celled embryos. Embryos exhibiting the fusion phenomenon were examined at the fine structural level. The fusion phenomenon resulted in formation of a secondary syncytium and was not a mere compaction of blastomeres
Recommended from our members
Chapter 2: The Consumption and Production of Fisheries Information in the Digital Age
Fisheries scientists persistently create, communicate, and use information. In
fact, if they did not, there would be no fisheries science. To exist, science must be
part of a continuum where shared information, from casual hallway communications
to rigorously reviewed articles, documents the questions asked and
the solutions suggested. Relevant information is critical to the success of basic
and applied fisheries research projects. Identifying the relevant at the beginning
of a project and then communicating what is important out of the project
are elements of the life cycle of fisheries information. Both have become
simultaneously easier and more difficult as the amount of information increases
within the digital environment. The access to information is simpler and yet
more nuanced.
The following attempts to assist with that decision making by describing
approaches, options and challenges to consuming relevant information and
then producing, or communicating, the same. On the consumption side, we
will discuss how to identify, obtain and manage fisheries information. As tools
change, the focus will be on strategies with specific examples of current tools.
On the production end, we will explain the decisions to be made regarding
intended audiences and possible outlets, publishing options, copyright considerations,
access points, and archiving responsibilities. Finally, we will return to
the electronic information environment to put the consumption strategies and
publishing decisions into a larger context. Here we will touch on the economics
of publishing and access, possible legal issues, the concept of the digital library,
and information integrity and preservation
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