Showing papers on "Artifact (error) published in 1970"

“Compound” and “Coordinate” Bilingualism: A Conceptual Artifact

Abstract: (1970). “Compound” and “Coordinate” Bilingualism: A Conceptual Artifact. WORD: Vol. 26, No. 2, pp. 254-261.

Enzyme localizations with Gomori type lead phosphate procedures: real or artifact.

Abstract: of trapped erythrocytes also reacts positively, as showms its Figirre 1. The importanst poitst, however, is the great differensce ins distribunioms of myoglobims-positive and -miegat ive fibers. Myoglobi ts -msegat ive fibers ins rabbit amid pig muscle are prepomsderamst. Its ox munscle there are few miegative fibers, butt. rather there is approximately 20% of the fiber area positive amid 20% defimsitely iustermediate, with the majority of the remaimsimig fiber area showinsg some distinguishable reactions. Additionally, the arramigememst of myoglobits positive fibers its pig mutscle is differemit from that ins rabbit or ox muscle. The myoglobims-positive fibers ins pig muscle are grouped ins chimps amid appear as islamsds ins a sea of fibers completely negative for the myoglobims reactions. Differemsces ins metabolism betweems red amid white muscle have beets well established (Bocek, Basiusger amid Beatty. lmer. J. Physiol. 210: 1108. 1966) amid our presemst resuults substatitiate the cotscept of a differeustial distributions of myoglobins its red amid white fibers. However, our species comparisons suggests that the differemsce ins myoglobims comstemst of imsdividual fibers is mitch more distimict ins muscle of low myoglobimi cotitent thams it is ins murscle of a high myoglobin content. Evens though the histochemically determined red fiber comitent of ox lomsgissimus is omily slightly higher thams that of pig lomsgissimus (Moody amsd Cassemis. J. Food Scm. 33: 47. 1968) the biochemically estimated myoglobims comitemit of ox munscle is much greater than that of pig muscle amid, moreover, the myoglobin appears to be much more gemnerally distributed amomsg the fibers its ox muscle.

A new method for detecting eye movement in sleep.

Abstract: A new method of detecting eye movements (EMs) during sleep is described. The method consists of an electromechanical measurement using micro-miniaturized silver cup electrodes. These electrodes, when placed on the eyelid, produce electro-oculographic (EOG) recordings similar to the usual electrical method. The eyelid method offers the advantage of a relatively “clean” recording showing only EMs and movement artifact, with no intermingling of EEG and EOG. Furthermore, the method is at least one and one half times as sensitive as the usual EOG technique. In addition to these two special advantages, it also offers the features of conventional methods, convenience of DC coupling, independence from signal converters, ease of analyzing EM directionality, and durability despite the small size of the electrodes. Fabrication of the electrodes, recording configurations, and simultaneous comparisons to both the usual EOG technique and to a strain gauge method are described.