35 research outputs found

    ATLAS detector and physics performance: Technical Design Report, 1

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    Poly(vinyl alcohol)/polyethyleneimine (PVA/PEI) blended monolithic cryogel columns for the depletion of haemoglobin from human blood

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    We have synthesized PVA/PEI monolithic cryogel columns chelated with Cu2+ ions as a model adsorbent, which is capable of binding haemoglobin (Hb) from human blood. The goal of this study is to perform the depletion of Hb via a single and easy process to be useful in proteomic studies. PVA/PEI-Cu2+ cryogel columns were subjected to adsorption studies of Hb from both aqueous solution and human plasma to evaluate the extent of interaction between cryogel columns and Hb. The effects of experimental parameters, such as pH, Hb equilibrium concentration, adsorption time, temperature, and ionic strength, on Hb adsorption capacity were investigated

    The role of the orienting response in the anticipation of information: A skin conductance response study

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    Theoretical positions concerning the role of the orienting response (OR) in information-processing and attention have viewed the OR either as indexing an active increase in information-processing efficiency, or as passively reflecting the results of information processing. This paper reports a skin conductance response (SCR) study of a two-stimulus anticipation experiment, where a warning stimulus (WS) informed subjects of the nature of an impending imperative stimulus (IS). The subjects' task was to identify as much of the IS as possible. Both the WS and the IS varied in information content and stimulus duration. SCR magnitude in the WS-IS interval varied according to the anticipated information processing requirements and was more sensitive to IS variation than WS variation. It is concluded that these responses index an anticipatory, activating process closely related to that suggested of the OR by Sokolov (1966), and consonant with the functional characteristics of the autonomic nervous system. Registration of information appears to be neither a necessary determinant of OR magnitude, nor a parsimoniously useful part of OR theory.link_to_subscribed_fulltex
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