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The Picture Exchange Communication System ( PECS) is an augmentative and alternative communication system developed and produced by Pyramid Educational Consultants, Inc. [ 1] PECS was developed in 1985 at the Delaware Autism Program by Andy Bondy, PhD, and Lori Frost, MS, CCC-SLP. [ 2] The developers of PECS noticed that traditional ...
A Keps nut, (also called a k-lock nut [1] or washer nut ), is a nut with an attached, free-spinning washer. It is used to make assembly more convenient. Common washer types are star-type lock washers, conical, and flat washers.
McMaster-Carr. McMaster-Carr Supply Company is a private American supplier of hardware, tools, raw materials, industrial materials, and maintenance equipment. The company was founded in 1901 and is based in Elmhurst, Illinois, with distribution centers in Robbinsville, New Jersey; Santa Fe Springs, California; Douglasville, Georgia and Aurora ...
After exercise, “light stretching is OK, as long as you don't reach a point where you're feeling pain,” Behm said. Since your muscles will be warm by that point, overdoing it makes you more ...
Dereliction of Duty: Lyndon Johnson, Robert McNamara, the Joint Chiefs of Staff, and the Lies That Led to Vietnam is a 1997 book written by H. R. McMaster, at the time a major in the United States Army (he subsequently became National Security Advisor in 2017 after having risen in rank to lieutenant general ). The book presents a case indicting ...
W. W. Grainger, Inc., is an American Fortune 500 [ 5] industrial supply company founded in 1927 in Chicago by William W. (Bill) Grainger. He founded the company to provide consumers with access to a consistent supply of motors. [ 6] The company now serves more than 4.5 million customers worldwide [ 4] with offerings such as motors, lighting ...
library .mcmaster .ca. McMaster University Library is the academic library system for the faculties of Humanities, Social Sciences, Engineering, Science, as well as the Michael DeGroote School of Business at McMaster University in Hamilton, Ontario, Canada. McMaster also has a Health Sciences Library administered by the Faculty of Health Sciences .
Sleeve nuts, one with mating bolt. A sex bolt is a type of fastener comprising a mated pair of screw and post, which are a machine screw and a nut that is barrel-shaped. The nut has a flange and a protruding boss that is internally threaded. The bolt (mated pair, screw and post) sits within the components being fastened, and the flange provides ...