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Exciton absorption in quantum-well wires under the electric field
(ELSEVIER SCIENCE BV, 2003)
The binding energy of excitons, and interband optical absorption in quantum-well wires of GaAs surrounded by Ga1-xAlxAs is calculated in effective-mass approximation, using a variational approach. Results obtained show ...
Effects of local anesthetics on pregnant uterine muscles
(POLISH ACAD SCIENCES INST PHARMACOLOGY, 2003)
Obstetric analgesia and anesthesia should provide optimal pain relief for the parturient with minimal risks. The local anesthetic agents are most commonly used for obstetric analgesia and anesthesia. We investigated the ...
Fluid-inclusion and stable-isotope characteristics of the Inler Yaylasi lead-zinc deposits, northern Turkey
(TAYLOR & FRANCIS INC, 2003)
The Eastern Black Sea Region of Turkey contains over 400 massive (Kuroko-type) and vein-type Cu-Pb-Zn deposits. The Inler Yaylasi lead-zinc deposits are typical examples of the vein type and have been economically mined ...
Binding energies of shallow donor impurities in different shaped quantum wells under an applied electric field
(ELSEVIER SCIENCE BV, 2003)
We present a variational method to compute the binding energies for a hydrogenic impurity located at the center of the finite parabolic (PQW), V-shaped (VQW or full graded well) and square (SQW) GaAs-Ga1-xAlxAs quantum ...
Electronic properties of two coupled Si delta-doped GaAs structures
(E D P SCIENCES, 2003)
We have theoretically investigated the subband structure of two coupled Si delta-doped GaAs at T = 0 K. For the uniform distribution we have studied the influence of the separation between the two doping layers. The ...
Treatability studies on wastewater from textile dyeing factories in Bursa, Turkey
(INDERSCIENCE ENTERPRISES LTD, 2003)
The textile industry is one of the most rapidly developing industries in Turkey. It generates a large amount of wastewater, with corresponding concerns about pollution. The main sources of pollution in wastewater are the ...
Investigations for modification of polyacrylamide-bentonite by phytic acid and its usability in Fe3+, Zn2+ and UO22+ adsorption
(SPRINGER, 2003)
Composite of polyacrylamide-bentonite (PAA-B) was prepared by direct polymerisation of PAA in a suspension of bentonite (B). Adsorption and thermodynamic features of phytic acid (Phy) adsorption onto B, PAA and PAA-B, and ...
Tuberculous meningits in adults in Turkey: Epidemiology, diagnosis, clinic and laboratory
(SPRINGER, 2003)
A retrospective study was performed to assess the epidemiology, diagnosis, clinic, and laboratory of the patients with tuberculous meningitis (TBM) in a multicentral study. The medical records of adult cases with TBM treated ...
New data concerning the age of the Aksu Thrust in the south of the Aksu valley, Isparta Angle (SW Turkey): consequences for the Antalya Basin and the Eastern Mediterranean
(WILEY-BLACKWELL, 2003)
Pliocene sediments in the Aksu valley of the Antalya Neogene basin, located in the central part of the Isparta Angle, are shown to have transgressed a palaeovalley which resulted from deep erosion, probably during a sea-level ...
The relation between serum leptin levels and body fat mass in patients with active lung tuberculosis
(MARCEL DEKKER INC, 2003)
The relationship of leptin to diminished appetite and weight loss has been investigated in many diseases. Diminished appetite and weight loss are the most apparent characteristics of patients with active lung tuberculosis ...