116 research outputs found
Cellulose acetate-based molecularly imprinted polymeric membrane for separation of vanillin and o-vanillin
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Attention bias to emotional faces varies by IQ and anxiety in Williams syndrome
Individuals with Williams syndrome (WS) often experience significant anxiety. A promising approach to anxiety intervention has emerged from cognitive studies of attention bias to threat. To investigate the utility of this intervention in WS, this study examined attention bias to happy and angry faces in individuals with WS (N=46). Results showed a significant difference in attention bias patterns as a function of IQ and anxiety. Individuals with higher IQ or higher anxiety showed a significant bias toward angry, but not happy faces, whereas individuals with lower IQ or lower anxiety showed the opposite pattern. These results suggest that attention bias interventions to modify a threat bias may be most effectively targeted to anxious individuals with WS with relatively high IQ
Population ecology of the sea lamprey (Petromyzon marinus) as an invasive species in the Laurentian Great Lakes and an imperiled species in Europe
The sea lamprey Petromyzon marinus (Linnaeus) is both an invasive non-native species in the Laurentian Great Lakes of North America and an imperiled species in much of its native range in North America and Europe. To compare and contrast how understanding of population ecology is useful for control programs in the Great Lakes and restoration programs in Europe, we review current understanding of the population ecology of the sea lamprey in its native and introduced range. Some attributes of sea lamprey population ecology are particularly useful for both control programs in the Great Lakes and restoration programs in the native range. First, traps within fish ladders are beneficial for removing sea lampreys in Great Lakes streams and passing sea lampreys in the native range. Second, attractants and repellants are suitable for luring sea lampreys into traps for control in the Great Lakes and guiding sea lamprey passage for conservation in the native range. Third, assessment methods used for targeting sea lamprey control in the Great Lakes are useful for targeting habitat protection in the native range. Last, assessment methods used to quantify numbers of all life stages of sea lampreys would be appropriate for measuring success of control in the Great Lakes and success of conservation in the native range
Surface Plasmon Resonance Enhanced Transmission of Light through Gold-Coated Diffraction Gratings
A Turke turn'd Quaker: conversion from Islam to radical dissent in early modern England
The study of the relationship between the anglophone and Islamic
worlds in the seventeenth century has been the subject of increas-
ing interest in recent years, and much attention has been given to
the cultural anxiety surrounding “Turning Turke”, conversion from
Christianity to Islam, especially by English captives on the Barbary
coast. Conversion in the other direction has attracted far less
scrutiny, not least because it appears to have been far less com-
mon. Conversion from Islam to any form of radical dissent has
attracted no scholarship whatsoever, probably because it has been
assumed to be non-existent. However, the case of Bartholomew
Cole provides evidence that such conversions did take place, and
examining the life of this “Turke turn’d Quaker” provides an insight
into the dynamics of cross-cultural conversion of an exceptional
kind
PINK1 expression increases during brain development and stem cell differentiation, and affects the development of GFAP-positive astrocytes
Electrochemically Controlled Solid-Phase Microextraction Based on Conductive Polypyrrole Films
Immunoassay of fumonisins by a surface plasmon resonance biosensor
A surface plasmon resonance (SPR) immunosensor is developed to determine concentrations of the mycotoxin, fumonisin B1 (FB1), in spiked samples. Polyclonal antibodies produced against FB1 are adsorbed onto a thin gold film substrate, which is coupled to a glass prism in the Kretschmann configuration. The output beam of a planar light-emitting diode is focused through the prism to excite SPR at the surface of the gold film. When a sample containing FB1 is added to a cell on the outside of the gold film, the angular profile of reflected light intensity shifts. This changes the resonance angle and the reflected beam intensity at a selected angle, both of which are proportional to the FB1 concentration. After optimization of the antibody overlayer, a detection limit of 50 ng/mL is obtained for the direct assay with an analysis time under 10 min. Multiple sample additions and large-volume sample circulation can be used with the high-affinity antibodies to achieve lower detection limits
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