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Perkiomen Valley Academy. Coordinates: 40.31813°N 75.54432°W. The Perkiomen Valley Academy (PVA) day-treatment program is one of several individual treatment and alternative educational centers for adolescents in Montgomery County, Pennsylvania. The program serves twelve- to eighteen-year-old students from the eight school districts located ...
Polyvinyl acetate (PVA, PVAc, poly (ethenyl ethanoate)), commonly known as wood glue (a term that may also refer to other types of glues), PVA glue, white glue, carpenter's glue, school glue, or Elmer's Glue in the US, is a widely available adhesive used for porous materials like wood, paper, and cloth. An aliphatic rubbery synthetic polymer ...
Polyvinyl alcohol (PVOH, PVA, or PVAl) is a water - soluble synthetic polymer. It has the idealized formula [CH 2 CH (OH)] n. It is used in papermaking, textile warp sizing, as a thickener and emulsion stabilizer in polyvinyl acetate (PVAc) adhesive formulations, in a variety of coatings, and 3D printing. It is colourless (white) and odorless.
Newspaper. hspvapaper. Website. hspva.org. Kinder High School for the Performing and Visual Arts (Kinder HSPVA, HSPVA or PVA) is a secondary school located at 790 Austin Street in the downtown district of Houston, Texas. The school is a part of the Houston Independent School District. The school provides education for grades nine through twelve.
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Wood glue. Wood glue is an adhesive used to tightly bond pieces of wood together. Many substances have been used as glues. Traditionally animal proteins like casein from milk or collagen from animal hides and bones were boiled down to make early glues. They worked by solidifying as they dried. Later, glues were made from plant starches like ...
Population viability analysis (PVA) is a species -specific method of risk assessment frequently used in conservation biology. It is traditionally defined as the process that determines the probability that a population will go extinct within a given number of years. More recently, PVA has been described as a marriage of ecology and statistics ...
Dermatology. Poikiloderma vasculare atrophicans (PVA), is a cutaneous condition (skin disease) characterized by hypo- or hyperpigmentation (diminished or heightened skin pigmentation, respectively), telangiectasia and skin atrophy. [3][4][5] Other names for the condition include prereticulotic poikiloderma and atrophic parapsoriasis. [6]