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Hypodermic needles are normally made from a stainless-steel or Niobium tube [17] through a process known as tube drawing where the tube is drawn through progressively smaller dies to make the needle. The end of the needle is bevelled to create a sharp pointed tip, letting the needle easily penetrate the skin. [18] A hypodermic needle tip under ...
The hypodermic needle model (known as the hypodermic-syringe model, transmission-belt model, or magic bullet theory) is claimed to have been a model of communication in which media consumers were "uniformly controlled by their biologically based 'instincts' and that they react more or less uniformly to whatever 'stimuli' came along".
Illustration of Rynd's hypodermic needle shown at F of Fig. 1. In a 12 March 1845 article in the Dublin Medical Press, Rynd outlined how he had injected painkillers into a patient with a hypodermic syringe in on 3 June 1844: [6] [7]
In 1853, wanting to inject iron perchloride coagulant into an aneurysm, Pravaz adapted Rynd's needle, [3] rather than using the usual suction tube. Measuring 3 cm (1.18 in) long and 5 mm (0.2 in) in diameter, his syringe was entirely in silver, [ 2 ] made by Établissements Charrière , and operated by a screw (rather than the plunger familiar ...
In 1853, he invented the first hypodermic needle that used a true syringe and hollow needle. [8] Wood referred to his invention as "subcutaneous" rather than "hypodermic". The term "hypodermic" was actually coined by the English doctor Charles Hunter , whose developments of Wood's invention and research into the method of administering pain ...
Hypodermic needle model, a theory of a direct effect of the mass media on audiences Topics referred to by the same term This disambiguation page lists articles associated with the title Magic bullet theory .
Michael Lombardi is a key piece of Bill Belichick's foray into college coaching, the general manager charged with reshaping North Carolina's program into a mini pro franchise. Fittingly, the ...
Hypodermic needle model (known as the hypodermic-syringe model, transmission-belt model, or magic bullet theory) is a model of communication suggesting that an intended message is directly received and wholly accepted by the receiver.