Heterogeneity can boost biodiversity, as well as increase the resilience of an ecosystem to changing environmental conditions; therefore, it is important to understand how topographic heterogeneity in ecosystems is formed. Sandy tidal marshes have a repetitive pattern of higher elevated hummocks surrounded by lower elevated depressions, representing topographic heterogeneity at the scale of a f...

Food-storing birds, for example, marsh tits, Parus palustris, use memory to retrieve stored food and have a larger hippocampus relative to the rest of the telencephalon than do species that store little or no food such as the blue tit, P. caeruleus. The difference between food storers and nonstorers in relative hippocampal volume occurs after the young birds have fledged from the nest and is de...

We present Hα spectra of the magnetic white dwarf star WD1953−011 which confirm the presence of the broad Zeeman components corresponding to a field strength ∼ 500 kG found by Maxted & Marsh (1999). We also find that the line profile is variable over a timescale of a day or less. The core of the Hα line also shows a narrow Zeeman triplet corresponding to a field strength of ∼ 100 kG which appea...

In situ persistence of coastal marsh habitat as sea level rises depends on whether macrophytes induce compensatory accretion of the marsh surface. Experimental planters in two North Carolina marshes served to expose two dominant macrophyte species to six different elevations spanning 0.75 m (inundation durations 0.4-99 %). Spartina alterniflora and Juncus roemerianus exhibited similar responses...

Fish associated with Australian saltmarshes have previously been sampled fi-om within creeks or semi-permanent pools on the marsh; this is the first record of fish use of marsh flats inundated on high tides but emergent on low tides. Buoyant pop nets (9 m^ 1 mm mesh) were used to collect fish from two areas of the marsh flat on Torrens Island in the Barker Inlet-Port River estuary. South Austra...

Biomedical datasets usually include a large number of features relative to the number of samples. However, some data dimensions may be less relevant or even irrelevant to the output class. Selection of an optimal subset of features is critical, not only to reduce the processing cost but also to improve the classification results. To this end, this paper presents a hybrid method of filter and wr...

Classifying the regulatory status of organisms produced by new techniques is becoming increasingly difficult, because the definition of a GMO in the Directive was drafted at a time when many of these techniques had not been conceived. Technology in molecular genetics is developing rapidly, to the extent that plants and other organisms can be modified in ways whereby the use of recombinant techn...

Objective: This study aimed to evaluate the nutritional status of elderly by use of the Mini-Nutritional Assessment (MNA) tol and to compare the MNA scores with socioeconomic variables. Methods: 400 elderly males and elderly females were selected from Nagpur city, Maharashtra, India. The information on socio-demographic attributes of elderly was recorded. Nutritional status was assessed using M...

ORDY AND DRABKIN (1) have described a simplified spectrophotometric procedure for the determination of oxygen saturation of whole hemolyzed blood. The described method of sampling by use of tonometers, although technically precise, is somewhat inconvenient for routine clinical use. In a note appended to the article, Marsh described a simpler modification. He collects the samples in oiled, hepar...