Mucormycosis: 2 Case Report

Mucormycosis is a rare, saprophytic, invasive and fulminant fungal disease. It is infective to patients with underlying immunocompromised conditions. We presented two cases of mucormycosis, one of which occured in the nose and the other on the auricle. A two-year-old female patient with diabetic ketoacidosis revealed necrosis and surrounding hyperemia in the nasal vestibule, nasal septum and dorsum of nose. A 17-year-old female diabetic patient had been suffering from black-colored lesion on the auricle. Physical examination presented necrosis on the auricle. Facial paralysis occured in the patient with auricular mucormycosis. Systemic amphotericin B was empirically administered after the sample was obtained for microbiologic and histopathologic examination in both patients. Necrotic tissues was also debrided in the second patient. The first patient died on the second day of treatment, and the second patient on the seventh day. We discussed the bacteriologic characteristics, histological peculiarities, and alternative treatments

Comparison of meat quality and fatty acid profile in slow-growing chicken genotypes fed diets supplemented with Origanum vulgare or Melissa officinalis leaves under the organic system under the organic system

This study was conducted to compare the meat quality and selected fatty acids profile of two different slow-growing broiler genotypes (Hubbard S757; S757 and Hubbard Grey Barred JA; GB-JA) fed diets supplemented with dry oregano (Origanum vulgare L., OV; 10 g/kg basal diets) or lemon balm leaves (Melissa officinalis L., MO; 10 g/kg basal diets) under organic housing system. It is concluded that slow-growing genotypes had no effect on L* parameter of the breast, thigh and abdominal fat meat quality. Two hundred and forty chicks were allocated randomly into 4 experimental groups according to a 2x2 factorial arrange-ment. Birds were raised until 98 days in order to achieve an acceptable market live weight. The b* colours of breast and thigh meat were significant different among genotypes and also a* colour of breast meat of GB-JA increased (P<0.05). Slow-growing female broilers produced a higher dry matter content and lower fat content of breast meat as compared with males. There were the higher concentrations of linoleic (C18:2n-6) acid and the lower concentrations of linolenic acid (C18:3n-3) in genotypes fed with supplemented dry oregano or lemon balm leaves diet. Sex affected total unsaturated fatty acids (UFA) composition, polyunsaturated fatty acid (PUFA) and linoleic acid, were higher in slow growing males breast meat as compared with females breast meat. These results suggested that the slow-growing genotypes might had influenced the colour of breast and thigh meat, although overall meat quality was not affected under the organic system. Key words: , , ,

Insecticidal Effect of the Extracts of Cladonia foliacea (Huds.) Willd. and Flavoparmelia caperata (L.) Hale AgainstAdults of the Grain Weevil, Sitophilus granarius (L.) (Coleoptera: Curculionidae)

Four different concentrations of extracts, obtained from the two lichen species (Cladonia foliacea (Huds.) Willd. and Flavoparmelia caperata (L.) Hale), were tested against the grain weevil, Sitophilus granaries (L.) under laboratory conditions. Mortality rate of adults was determined at 24, 48, and 96 h. Obtained results showed that the extracts of C. foliacea and F. caperata had insecticidal effects on the adults of S. granarius in comparison with control. The insecticidal effect was influenced by the concentration of the extract and the exposure time. Higher concentrations and longer exposure time resulted to highest toxicity levels on S. granarius. Mortality rates after 96 h of treatment with highest concentration (20 mg.ml-1) of the extracts of F. caperata and C. foliacea were determined as 91 and 83%, respectively. Bioassay revealed that 96 h LC50 values were 0.107 and 0.354 mg.ml-1, respectively. The results suggest that lichen compounds could be useful as alternatives of pesticides

An effective modification of the homotopy perturbation method for MHD viscous flow over a stretching sheet

AbstractIn this paper, we propose a powerful modification of the homotopy perturbation method that will accelerate the rapid convergence of series solution. The modified method is employed to solve the MHD boundary-layer equations. The viscous fluid is electrically conducting in the presence of a uniform applied magnetic field and the induced magnetic field is neglected for small magnetic Reynolds number. Similarity solutions of ordinary differential equation resulting from the momentum equation are obtained. Finally, some numerical comparisons among the new modified homotopy perturbation method, the standard homotopy perturbation, the Exact Solution and the Shooting method have been made, which manifest that the modified method is a very accurate and effective algorithm to solve the two-dimensional MHD viscous flow over a stretching sheet

[N-(2-Hydroxy­ethyl)ethyl­enediamine]oxalatocopper(II)

In the title mononuclear copper(II) compound, [Cu(C2O4)(C4H12N2O)], the CuII ion has a slightly distorted square-pyramidal geometry, with a tridentate N-(2-hydroxy­ethyl)ethyl­enediamine (HydEt-en) and a bidentate oxalate (ox) ligand. The N atoms of the HydEt-en ligand and the O atoms of ox ligand form the basal plane, while the O atom of the ethanol group of the HydEt-en ligand is located in the axial position. The complex mol­ecules participate in a supra­molecular assembly through N—H⋯O and O—H⋯O hydrogen bonds between HydEt-en and ox ligands

trans-Bis(2-benzoyl­benzoato-κO 1)bis­(ethanol-κO)bis­(1H-imidazole-κN 3)nickel(II)

In the title centrosymmetric mononuclear nickel(II) complex, [Ni(C14H9O3)2(C3H4N2)2(CH3CH2OH)2], the central NiII ion lies on an inversion centre and is octa­hedrally coordinated. The equatorial plane is formed by two O atoms from two symmetry-related 2-benzoyl­benzoate ligands and two N atoms from two symmetry-related imidazole ligands, whereas the axial positions are occupied by two O atoms from two ethanol ligands. Intramolecular O---H...O hydrogen bonds stabilize this arrangement. The mol­ecules are linked into chains running along the b axis by N—H⋯O hydrogen bonds

Influence of welding parameters on the fatigue behaviours of friction stir welds of 3003-O aluminum alloys

Friction stir welding is a solid state welding method which appeared as a relatively new welding technology to be used mostly in aluminum alloys. The fatigue behaviours of welded joints represents the main problem for their industrial applications. In this research, fully reversed uniaxial fatigue tests have been performed in order to investigate the fatigue behaviours of single-sided friction stir butt welds in different welding conditions in 3 mm thick 3003-O non-heattreatable aluminum alloys. The employed rotating speeds of the tool were 1070, 1520 and 2140 rpm while the welding speeds were 40, 80 and 112 mm/min. The microstructure of the friction stir welds was studied by employing optical microscopy. The friction stir welds consisted of following microstructures: stirred zone, thermo-mechanically affected zone, heat affected zone and base material. The comparative studies on the fatigue behaviours between the base material and friction stir welds in different welding conditions have been done in this study. The fracture surfaces of the fatigue specimens were observed with a scanning electron microscope. According to the results, welding parameters have a major influence on the fatigue behaviours of the 3003-O friction stir welds. The fatigue lifes of FS welds with the welding speed of 40 mm/min at different rotating speeds are about 2-3 times longer than those of FS welds with the welding speeds of 80 mm/min and 112 mm/min at different rotating speeds at a fixed stress amplitude under the stress ratio R = -1. At a significantly lower welding speed and a higher rotatinal speed the fatigue life of the friction stir welds of 3003-O aluminum alloys was improved due to the increased amount of heat supplied to the weld per unit length. However, the fatigue lifes of all friction stir welds are lower than that of the base material at all stress amplitudes