An operating state detection technique is provided which makes it possible to accurately detect an abnormality of a high-frequency heating apparatus. The hook design includes a base, a stem and a crook whereby the volume of the portion of the hook penetrating into a pile of loops is defined as the displacement volume. A method of identifying Tpl2 specific inhibitors of endotoxin shock or antagonists to inflammation on and a method of treating or preventing TNF-mediated inflammatory diseases and Lps induced endotoxin shock in animals are also within the scope of this invention. In response to receiving the proximity data indicating that the mobile device is proximate to the user, the processor may identify a position of the mobile device in relation to the user using the acceleration data.