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In this work, As60Cu40-xSex thin films were synthesized, and the pulsed laser deposition method was used to study the effected partial replacement of copper with selenium. The electrical characteristics and optical characteristics, as indicated by the absorbance and transmittance as a function of wavelength were calculated. Additionally, the energy gap was computed. The electrical conductivity of the DC in the various conduction zones was calculated by measuring the current and voltage as a function of temperature. Additionally, the mathematical equations are used to compute the energy constants, electron hopping distance, tail width, pre-exponential factor, and density of the energy states in variation zones (densities of the energetic extended states N(Eext), localize N(Eloc) and at the Fermi states N(Ef)). The acquired data also demonstrated that the selenium concentration obviously had an impact on the electrical conduction mechanics, energy states, and the level of randomization. [ABSTRACT FROM AUTHOR]

The energy density state are the powerful factor for evaluate the validity of a material in any application. This research focused on examining the electrical properties of the Se6Te4-xSbx glass semiconductor with x=1, 2 and 3, using the thermal evaporation technique. D.C electrical conductivity was used by determine the current, voltage and temperatures, where the electrical conductivity was studied as a function of temperature and the mechanical electrical conduction were determined in the different conduction regions (the extended and localized area and at the Fermi level). In addition, the density of the energy states in these regions is calculated using the mathematical equations. The constants of energy density states are determined, namely the electron hopping distance, the width of the tails, and pre - exponential factor. The densities of the energetic states (extended N (Eext), localize N (Eloc) and at the Fermi states N (Ef) will be calculated in each of the regions. Moreover, the effect of partial substitution of Se with antimony on energy states and degree of randomness, results observed that the energy densities changing with an increase antimony Sb concentration. [ABSTRACT FROM AUTHOR]

This study aimed for molecular characterization of local isolates of L. tropica and L. major and their relatedness to reference isolated from neighboring countries. Exudates and dermal tissues were collected from the cutaneous lesions of 50 newly diagnosed patients with CL. Leishmania DNA was extracted from lesion exudate and 5.8S rRNA gene was amplified using two sets of specific primers through nested PCR. A total of 12 PCR products were directly sequenced and the resultant sequences were aligned with reference sequences in National Center for Biotechnology Information (NCBI). A phylogenetic tree was constructed for local Leishmania isolates with the reference isolates using Mega 6 software. According to alignment results out of 12 sequences, 9 sequences were belonging to L. major, while 3 sequences were belonging to L. tropica. All local L. major isolates were very close to reference isolate KP773404.1 (an Iranian isolate), while all local L. tropica isolates were very close to reference isolate KY612611.1 (an Iranian isolate) with an identity of 98%. Phylogenetic trees confirmed that closest isolates for local Leishmania (whether L. tropica or L. major) was the Iranian isolate. These data indicate that local isolates of L. tropica and L. major are closely related to Iranian isolates. [ABSTRACT FROM AUTHOR]

A newborn with megaesophagus associated with a left sided congenital diaphragmatic hernia is reported. This is an under recognized condition associated with herniation of the stomach into the chest and results in chronic morbidity with impairment of growth due to severe gastro esophageal reflux and feed intolerance. The infant was treated successfully by repair of the diaphragmatic hernia and subsequently by fundoplication. The megaesophagus associated with diaphragmatic hernia may not require surgical correction in the absence of severe symptoms. [ABSTRACT FROM AUTHOR]