Paraneonyssus pericrocoti is described from Pericrocotus roseus divaricatus in Taiwan and Ptilonyssus wilsoni from Collocalia sp. in New Guinea. The following new species of nasal mites from Taiwan and New Guinea were collected for Bishop Museum in the course of an intensive survey of ectoparasites of Taiwan birds made by T. C. Maa, and in the course of general surveys of vertebrate ectoparasit...

The gravity-driven free surface flow of a viscous liquid down an inclined plane has various engineering applications, for instance in cooling and coating processes. However, in many applications the bottom is not flat but has a wavy profile. This may be due to natural irregularities or by design, e.g., to increase the contact area in heat conductors. Thus, studying the stability of stationary s...

The primary stroma of the avian cornea contains collagen fibrils in orthogonal array. While investigating the processes underlying its morphogenesis, we have found that stromal organization is not as expected in three important respects. First, the fibrils are not uniform: those near the epithelium (newly laid down) have a maximum diameter of about 20 nm (mean: 17.7 nm), while those near the en...

A membrane that is not rigid in the plane, or has zero in-plane shear modulus, is said to be fluid; one that does have a nonzero shear modulus in the plane is said to be solid-like. A fluid membrane shaped, say, like a rectangle will be easily deformed when antiparallel forces are applied along two of its parallel edges. In many cases the interesting excitations, or conformations, of a fluid me...

Suggests Myopathy To the Editor: We read with interest the article on left ventricular noncompaction (LVNC) in children by Pignatelli et al,1 who found that LVNC has a good prognosis and that LV systolic function may undulate between deterioration and recovery.1 The report raises several concerns: Thirteen of the 36 patients (36%) were suspected of having mitochondrial myopathy (MM), although o...

The development of tropical depressions within tropical waves over the Atlantic and eastern Pacific is usually preceded by a " surface low along the wave " as if to suggest a hybrid wave-vortex structure in which flow streamlines not only undulate with the waves, but form a closed circulation in the lower troposphere surrounding the low. This 5 structure, equatorward of the easterly jet axis, r...

Enteropathogenic Escherichia coli (EPEC) attach to cells (attachment) lining the intestine and induce a decrease in the number of the cells' microvilli (effacement). This attachment and effacement is followed by diarrhea, which may be explained, at least in part, to the loss of microvilli and the decreased ability of the infected cells to absorb fluids. EPEC also attach to the surfaces of a num...

The occurrence of triploidy in the tomato has recently been reported (LESLEY 1925). In 1923 one of two triploid plants of Dwarf Aristocrat, a dwarf variety with scarlet fruit, was crossed with Globe, a diploid with standard habit and crimson fruit. The dwarf habit is a simple recessive to standard, and the yellow skin of scarlet fruit is a simple dominant to the colorless skin of crimson. An F1...

Fish swimming has often been simplified into the motions of a two-dimensional slice through the horizontal midline, as though fishes live in a flat world devoid of a third dimension. While fish bodies do undulate primarily horizontally, this motion has important three-dimensional components, and fish fins can move in a complex three-dimensional manner. Recent results suggest that an understandi...

Introduction: Much of the southern highlands has been mantled since the Noachian, including a general blanket of possibly airfall-derived sediment that softens the landscape [1,2,3,4], the Electris mantle [5] including knobby 'chaos' in several basins [6], and a variety of deposits that are the subject of this study that share the common characteristics of being generally confined to basins and...