forest classification on the basis of satellite images is a promising technique both for primary map production and for map updating and forest monitoring. for accurate for-est classification into three classes, using mapping by canopy cover density “high spatial resolution satellite images have to be used in order to obtain the required spatial detail” [schneider, 1999]. at the same time, the ...

The Problem: The standard model of object recognition in cortex is a computational model of ventral pathway thought tomediate visual object recognition [5]. It is composed of hierarchical feedforward layers of neuron-like units, performing either (1) template matching with a Gaussian function to increase feature complexity or (2) nonlinear pooling with a maximum operation to increase translatio...

α-Catenin (α-cat) is an actin-binding protein required for cell-cell cohesion. Although this adhesive function for α-cat is well appreciated, cells contain a substantial amount of nonjunctional α-cat that may be used for other functions. We show that α-cat is a nuclear protein that can interact with β-catenin (β-cat) and T-cell factor (TCF) and that the nuclear accumulation of α-cat depends on ...

The levels of cathepsins in malignant and surrounding nonmalignant lung tissue were determined in 17 non-small cell lung cancer specimens. Cathepsin (Cat) D activity was assayed using hemoglobin, whereas Cat B and Cat L activities were assayed using fluorimetric substrates, benzoylcarbonyl-Ala-Arg-Arg-7-amino-4-methylcoumarine and benzoylcarbonyl-Phe-Arg-7-amino-4-methylcoumarine, respectively....

For a lot of processing in the brain, two pathways are clearly better than one. In the visual system, two anatomically and functionally distinct pathways are thought to be specialized for processing information about where an object is versus what an object is. In a classic behavioral experiment1, dorsal lesions in posterior parietal cortex of monkeys resulted in worse performance only when the...

BACKGROUND Cat exposure during childhood has been shown to increase the risk of developing cat sensitization, while the effect of cat exposure in adulthood has not yet been established. OBJECTIVE To evaluate new-onset sensitization to cat in adulthood in relation to changes in cat keeping. METHODS A total of 6292 European Community Respiratory Health Survey I (ECRHS I) participants aged 20 ...

This study was carried out using two sets of numerical weather forecast data and flight reports for Clear Air Turbulence (CAT) over Iranian Plato to find atmospheric flow patterns favorable to the formation of CAT. The numerical data include five months of AVN analysis with horizontal resolution of 1 degree(about 100 km) and four months forecast data of MM5 model with resolution of 50 km. Impor...

The ability of domestic cat or leopard cat spermatozoa to penetrate zonae pellucidae (ZP) of salt-stored, domestic cat oocytes was examined as an assay for sperm capacitation. Ovarian oocytes were recovered after ovariectomy and matured in vitro for 18-36 h. Following removal of cumulus cells, the oocytes were used fresh, or stored (4°C, 0.5-24 weeks) in a HEPES-buffered hypertonic salt solutio...