A 44-year-old Caucasian woman presented with asymptomatic skin lesions on the trunk, arms and legs. These lesions had suddenly appeared 4 months before and have been unchanged ever since. Medical history included arterial hypertension and hypertriglyceridemia. The patient recalled an acute episode of painful subcutaneous nodules on the lower legs some years ago that disappeared with NSAID and l...

Objectives. The present study was done to evaluate birefringence pattern of collagen fibres in different grades of oral squamous cell carcinoma using Picrosirius red stain and polarization microscopy and to determine if there is a change in collagen fibres between different grades of oral squamous cell carcinoma. Materials and Methods. Picrosirius red stained 5 μm thick sections of previously d...

Ghrothiomycin inhibits reactions of tyrosine hydroxylase1} and dopamine /?-hydroxylase2>3). It also exhibits weak antibacterial activities. It is obtained as blackish purple crystals containing sulfur and named chrothiomycin. In this paper, characters of chrothiomycin-producing Streptomyces are described together with the chemical and physical properties of the antibiotic and some of the biolog...

The daylily (Hemerocallis fulva) and nightlily (H. citrina) are typical examples of a butterfly-pollination system and a hawkmoth-pollination system, respectively. H. fulva has diurnal, reddish or orange-colored flowers and is mainly pollinated by diurnal swallowtail butterflies. H. citrina has nocturnal, yellowish flowers with a sweet fragrance and is pollinated by nocturnal hawkmoths. We eval...

Kolicite, MnrZno(Aso4)r(sio4)r(oH)*, is a new mineral found in the Sterling Hill mine, ogdensburg, Sussex county, New Jersey. Kolicite is orthorhombic, space group Cmca, with a : 18.59(3), D : 8.789(5) and c: 12.04(l)A, V: l96j.lA3, Z:4. The six strongest l ines in the X-ray diffraction pauern (d n A, intensity, hkt) are:2.9j 100 023,512: 1.540 70 552, 5l:-. 644,842' 915; 3.58 60 rr3;2.608 50 5...

Collagen pattern in healing anastomosis of intestinal wall was compared with its normal pattern in the submucosal layer. Polarization colours were recorded for thin (0.8 micron or less) and thick (1.6-2.4 micron) collagen fibres. The polarization colours of thick collagen fibres in the anastomotic site were more greenish-yellow and yellow than those in normal intestine which were more yellowish...

CeCuO3 nanoparticles with diameter 4.36 nm was synthesized by a fast and simplemicrowave method using cerric sulphate tetra hydrate and copper sulphate pentahydrate asstarting reagents. CeCuO3 was synthesized under microwave heating for 6 min without calciningsteps. The synthesized products were characterized by X-ray powder diffraction (XRD) andscanning electron microscopy (SEM) and the photoc...

White-light emitting diode lamps for general illumination can be realized by a combination of a blue light-emitting diode semiconductor die and phosphors. Newly developed oxynitride and nitride phosphors are promising candidates for this application because they have suitable excitation and emission wavelengths and stable optical properties in a high temperature environment. High brightness war...

Numerous infectious, inflammatory and neoplastic complications secondary to tattoo placement have been reported in the literature. Within inflammatory complications sarcoidal granulomatous reactions have been described. We report two cases, a 55-year-old woman with yellowish infiltrated plaques on bilateral ciliary region, 16 years after the placement of a permanent tattoo in the eyebrows, and ...

Persistent luminescent materials are able to emit light for hours after being excited. The majority of persistent phosphors emit in the blue or green region of the visible spectrum. Orange- or red-emitting phosphors, strongly desired for emergency signage and medical imaging, are scarce. We prepared the nitrido-silicates Ca₂Si₅N₈:Eu (orange), Sr₂Si₅N₈:Eu (reddish), Ba₂Si₅N₈:Eu (yellowish orange...