Whiteness, although frequently apparent on the wings, legs, antennae, or bodies of many species of moths and butterflies, along with other colors and shades, has often escaped our attention. Here, we investigate the nanostructure and microstructure of white spots on the wings of Carystoides escalantei, a dusk-active and shade-inhabiting Costa Rican rain forest butterfly (Hesperiidae). On both m...

Retinitis punctata albescens is a rare type of pigmentary retinopathy. It is usually transmitted as an autosomal recessive trait. It is caused, in the majority of the cases, by one mutation in the RLBP1 gene. It shows the same clinical features of a classic pigmentary retinopathy and it is characterized by the presence of many white spots at the level of the pigment epithelium strewn over the r...

Light-adapted foveal luminance increment thresholds were measured for white photopic targets of 1.5-arc min diameter and 220-ms duration. We aimed to learn about the properties of mechanisms that subserve the detection of these targets. To study this subject we developed a noise probe technique that inserts noise close to the site of the stimulus. Threshold is more than doubled when zero-mean l...

Corresponding author: Byung Cheol Park, Department of Dermatology, College of Medicine, Dankook University, 119 Dandae-ro, Dongnam-gu, Cheonan 31116, Korea. Tel: 82-41-550-6485, Fax: 82-41-552-7541, E-mail: [email protected] This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) whi...

Wamnt Officer C., aged 26, was first seen on March 31, 1944, when he complained that he had been seeing black spots in front of both eyes for the preceding 2 months. He had noticed no signs of inflammation in the eyes. Examination.-Visual acuity in the right and left eyes was 4/4.5. Each eye had pigmented spots on the anterior surface of the lens and vitreous opacities. OphthaLmoscopic examinat...

Among the young patients with their anterior teeth involnement, aesthetic is usually a major factor that may produce a challenge to the dentist. Discoloured teeth may often affect the general population and dental fluorosis can be a major problem in areas of endemic fluorosis such as in India. The fluorosis resulting in discoloration of teeth may have various treatment options like bleaching, v...

The aim of this ex vivo study was to compare visual clinical and radiographic examinations to the histological analysis for proximal caries diagnosis in extracted permanent molars and premolars. The relationship between clinical aspects and carious lesions was also evaluated. Eighty-eight proximal surfaces (44 freshly extracted teeth) were longitudinally sectioned with a 370-microm diamond disk...

Specimens of Ruppia from all eleven Nebraska counties in which it is known fall into two groups: R. occidentalis in alkaline Sandhills waters and R. maritima in saline waters of the Platte River Valley and Lancaster County. Ruppia occidentalis is distinguished by its more robust size; redspotted leaves and stems; terete, entire, obtuse leaves; 4-8(9) carpels; and by two elliptic white spots on ...

A new species of Trimma, T. irinae, is described from 65 m off Lawadi, Milne Bay Province, Papua New Guinea. This colourful new species has red-orange spots on the head and anterior trunk, with a yellow to orange body posteriorly. The first dorsal fin has two dark basal spots, and the elongated section of the second dorsal spine is bright white to pale blue in life. There are 8-9 scales in the ...

more or less abdominal tenderness in spots. The fever, which often runs rather high and which may or may not be preceded by a rigor, generally lasts for some days, but gives way atonce to an efficient purgative, with or without a dose of quinine. The cases are epidemic, endemic or sporadic. The tongue is red, rather dry, with a high standing white or yellow fur, and sometimes with "strawberry" ...