¶ … Species of California (Common Teasel) The tradespersons who carried out this craft were known as fullers, giving rise to the name of the common teasel's progenitor (Reeves).
The Common Teasel (Dipsacus fullonum) is a plant species identified by several alternate names, including wild teasel, Indian teasel, card teasel, card thistle, gypsy-comb, Venus-cup, and finally Fuller's teasel. With the exception of the great plains region in the north, it can be found growing wild throughout the continental United Staes and parts of Canada. Fuller's teasel is actually a cultivated variety (Dipsacus sativus), which is often confused with its wild form, the common teasel. The teasel is not native to California, having originated in Eurasia and Northern Africa and proliferated accidentally during the eighteenth century as a contaminant in imported seed stocks and in flower arrangements. The cultivated teasel variety was used as an ornamental item in dried flower displays, as well as a hairbrush, and for creating wool. Common teasel is classified in the United States as a noxious invasive species that is rated as moderately problematic to native ecosystems. This occurs primarily when it grows into high-density stands that obstruct the movement of humans or domestic animals. It is occasionally referred to as a "bio-bully" species. Common teasel occurs most often in riparian or wetland areas, but has adapted over the past thirty years to flourish in open non-wetland areas with abundant sunshine, and is commonly observed along highways, grassy meadows, cemeteries, and disturbed sites at elevations ranging from sea level to 5500 feet (Calflora).
Fuller's teasel was a reference to the puckered appearance of the leaves. The name was derived from the archaic verb to full, which referred to a process used to thicken and shrink cloth using heat, moisture and pressure. The prickly fruit of the D. sativus variety was also used to raise the nap on woolen fabrics. This process was called teasing wool, which resulted in the name teasel for the ...
The common teasel (hereafter referred to as "teasel") is a monocarpic biennial plant, which means that its typical two-year life cycle ends after it has flowered and set seeds. It will then sprout once again as a new plant. (Gucker). Following germination, the plant has a rosette form with the leaf bases fused together to form a cup, which surrounds the stem and collects rain water. The name dipsacus originated from this feature, derived from the Greek word dipsa, meaning "to thirst." The leaves have a puckered appearance, with ribbed edges and small spines along the middle of the underside of each leaf (Reeves).
In the one to two years following germination, the plant grows a flowering, prickly stem which can be from two to eight feet in height. The flowers are purple or lavender to white in color, small in size and arranged in dense conical formations called heads, three to ten centimeters in length consisting of up to 1,500 flowers each. Between the flowering and seed-producing stages, the stems become woody, with branches appearing in the upper part of the plant. The flowering season for teasel varies slightly according to its location. In California, flowering takes place between the months of April and August, and is delayed by one to three months in the midwestern and Northeastern states. The flowers are pollinated by insects, and seeds mature during the Fall. Seed dispersion occurs in several ways. The majority of seeds fall near the base of the plant, but can be transported over several weeks to greater distances, carried by wind, moving water and soil, animals, and human activities such as mowing. The seeds themselves are capable for surviving for over five years before germinating, and individual stands of teasel may thrive and persist for two or more decades. The underground structure of the teasel consists of a thick and fleshy tap root system descending to a depth of two to…
The tradespersons who carried out this craft were known as fullers, giving rise to the name of the common teasel's progenitor (Reeves).
In 1954 the first settlements were created using H-shaped blocks (Chan, 1998). Today, however, building block styles include Double H-shaped, Cruciform, Twin Tower, Trident, and Linear (Wong & Yau, 1999). These are designed to be easily constructed and work well for heating and cooling, but they are also designed to prevent a total building collapse in case of a fire. Re-engineering a process that needs some assistance has become
In the case of the former, its purpose is to form a protective layer on fuels to raise their combustion temperature; in the case of the latter, the purpose of Triple F. is to cover the entire exposed surface of the combustible agent (Wright 1997). Certain chemical fires such as those fueled by petroleum products and byproducts, are attacked with light water consisting of water with special chemical agents
According to the Federal Emergency Management Agency United States Fire Administration (1996), "Emergency medical services respond to urgent situations that are related to the health and welfare of the community's citizens. Emergency management services protect the community from the effects of natural disasters. Rescue teams safely remove citizens from dangerous predicaments, avoiding the risk of injury or death that untrained, unprepared citizens might face if they tried to perform
Many foresters supported Pinchot's policies along with pulp, timber and paper companies, and in fact the U.S. Forest Service (commanded by Chief Forester Henry Graves) adopted "fire control" as the "principle duty of the agency" (Fowler). However there was plenty of opposition to Pinchot's strategy of suppressing fires, both from state and federal agencies that supported "light burning" and "Indian fires" policies. By 1910, Fowler writes in the Forest
A clear example of the use of this technique is the fact that the closest responder can be sent by the dispatch to a fire incident regardless of whether the responding unit is not within the particular defined region. Water Mist: As a significant technique in modern fire research, ultrafine water mist systems enable a more effective translation of water into steam. The steam permits a gas-like spreading that will flood
Incident Management System From the onset, it is important to note that in all hazardous materials incidents, an incident management system must be utilized (Corbett, 2009). This is essentially a federal law mandate. From a general perspective, an incident management system could be defined as all the attempts to not only understand but also respond to emergency scenarios via the application of various procedures, and utilization of the relevant personnel and