4,103 research outputs found
Coronal sources of the intrastream structure of the solar wind
Short time scale changes in the bulk speed were found not to coincide with X-ray transients near the sub-earth point nor with the number of X-ray bright points within a coronal hole and near the equator. The changes in bulk speed, it is shown, are associated with changes in light areas in a hole which may be associated with the opening or closing of magnetic field lines within the coronal hole. That there is a causal connection between these sudden changes (apperance or disappearance) in light area and sudden changes in the bulk speed of the solar wind is further evidenced by the spatial proximity on the Sun of these changing light regions to the source position of stream lines from Levine's model that connect into the same solar wind streams
The rice root-knot nematode, Meloidogyne graminicola, on deep water rice (Oryza sativa subsp. indica
Following basal stem rot in young oil palm plantings
The PCR primer GanET has previously been shown to be suitable for the specific amplification of DNA from Ganoderma boninense. A DNA extraction and PCR method has been developed that allows for the amplification of the G. boninense DNA from environmental samples of oil palm tissue. The GanET primer reaction was used in conjunction with a palm-sampling programme to investigate the possible infection of young palms through cut frond base surfaces. Ganoderma DNA was detected in frond base material at a greater frequency than would be expected by comparison with current infection levels. Comparisons are made between the height of the frond base infected, the number of frond bases infected, and subsequent development of basal stem rot. The preliminary results suggest that the development of basal stem rot may be more likely to occur when young lower frond bases are infected
Flexible Ultrathin PolyDVB/EVB Composite Membranes for the Optimization of a Whole Blood Glucose Sensor.
An ultrathin composite membrane has been developed as the outer covering barrier
in a model amperometric glucose oxidase enzyme electrode. The membrane was
formed by cathodic electropolymerization of divinylbenzene/ethylvinylbenzene at
the surface of a gold coated polyester support membrane. Permeability
coefficients were determined for O2 and glucose across membranes with a range of
polymer thicknesses. Anionic interferents (such as ascorbate), were screened
from the working electrode via a charge exclusion mechanism. The enzyme
electrode showed an initial 10% signal drift when first exposed to whole human
blood over a period of 2 hours, after which responses remained essentially
stable. Whole blood patient glucose determinations yielded a correlation
coefficient of r2=0.99 compared to standard hospital analyses
Memory & Cognition: What difference does gender make?
Small but significant gender differences, typically favoring women, have previously been observed in experiments measuring human episodic memory performance. In three studies measuring episodic memory, we compared performance levels for men and women. Secondary analysis from a pairedassociate learning task revealed a superior ability for women to learn single function pairs (i.e. words that are represented in only one pair), but performance levels for double function pairs (i.e. pairs that contain words that are also used in one other pair) were similar for men and women. We also reanalyzed data from a recognition experiment that used pictures as stimuli, and discovered an enhanced propensity for women to recollect the test probes in comparison to men, but familiarity based judgments had minimal differences between genders. A prospective study was conducted in order to compare the effect of gender on a delayed free recall task that included basic arithmetic problems as part of the distractor task. Implications for gender differences are discussed with regard to biological factors involving estrogen, and relevant social factors
Abstract Law and Political Reality in the Post-European-Accession British Constitution
Abstract Law and Political Reality in the Post-European-Accession British Constitutio
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