Entanglement fidelity for electron-electron interaction in strongly coupled semiclassical plasma and under external fields

This paper presents the effects of AB-flux field and electric field on electron-electron interaction, encircled by a strongly coupled semiclassical plasma. We found that weak external fields are required to perpetuate a low-energy elastic electron-electron interaction in a strongly coupled semiclassical plasma. The entanglement fidelity in the interaction process has been examined. We have used partial wave analysis to derive the entanglement fidelity. We found that for a weak electric field, the fidelity ratio for electron-electron interaction increase as projectile energy increase but remains constant or almost zero for a strong electric field. Our results provide an invaluable information on how the efficiency of entanglement fidelity for a low-energy elastic electron-electron interaction in a strongly coupled semiclassical plasma can be influenced by the presence of external fields

{\kappa} state solutions for the fermionic massive spin-1/2 particles interacting with double ring-shaped Kratzer and oscillator potentials

In recent years, an extensive survey on various wave equations of relativistic quantum mechanics with different types of potential interactions has been a line of great interest. In this regime, special attention has been given to the Dirac equation because the spin-1/2 fermions represent the most frequent building blocks of the molecules and atoms. Motivated by the considerable interest in this equation and its relativistic symmetries (spin and pseudospin) in the presence of solvable potential model, we attempt to obtain the relativistic bound states solution of the Dirac equation with double ring-shaped Kratzer and oscillator potentials under the condition of spin and pseudospin symmetries. The solutions are reported for arbitrary quantum number in a compact form. the analytic bound state energy eigenvalues and the associated upper- and lower-spinor components of two Dirac particles have been found. Several typical numerical results of the relativistic eigenenergies have also been presented. We found that the existence or absence of the ring shaped potential potential has strong effects on the eigenstates of the Kratzer and oscillator particles with a wide band spectrum except for the pseudospin-oscillator particles where there exist a narrow band gap.Comment: 27 pages, 1 figur

Evolution of physical and mechanical characteristics of deposited composite coatings on A356 mild steel

This research investigated the development of Zn-SnO2/Zn-Al2SiO5 thin film on A356 mild steel using the electrodeposition technique. The developed coating was attained in 2.0 V for 10 min at a constant current density of 1.5 A/cm2. The electroplating process was maintained at a constant stirring rate of 250 rpm, temperature of 45 °C, 10 g of SnO2 was used for the bath while Al2SiO5 was varied from 5 to 15 g. The surfaces of coated samples were characterized using a scanning electron microscope (SEM). The effects of 3.56% NaCl on the coated and uncoated sample were examined via the potentiodynamic polarization technique, employing Autolab PGSTAT 101 Metrohm potentiostat with NOVA software of version 2.1.2. The outcome of the experiment revealed that the electrodeposited Zn-SnO2/Zn-Al2SiO5 exhibits better stability, improved microhardness, excellent microstructural qualities, and outstanding corrosion resistance. The Zn-10SnO2-15Al2SiO5-coated steel exhibits the lowest corrosion rate of 0.0473 mm/year, representing 99.32% reduction in corrosion rate compared to the uncoated sample. Similarly, a corrosion current density (jcorr) value of 20.5 μA/cm2 was recorded for the uncoated sample which is much greater than the jcorr of the coated samples. This shows that the coating minimizes the exchange of current within the steel. The hardness value of the Zn-10SnO2-15Al2SiO5-coated steel was higher than other coated samples and 17.51% higher than the uncoated steel, and this indicates improvement in the mechanical property of the steel

Amelioration of Cadmium-Induced Nephropathy using Polyphenol-rich Extract of Vernonia amygdalina (Del.) Leaves in Rat Model

AIM: To determine the effects of polyphenol-rich extract of the leaves of Vernonia amygdalina (PEVA) in rats with Cd-induced nephropathy.MATERIALS AND METHODS: Sixty five male Wistar rats were divided into five groups as follows; Group 1 received distilled water throughout the period of study. Group 2 received 5 mg/kg body weight of cadmium (Cd), in the form of CdSO4, for five consecutive days via intraperitoneal route. Groups 3, 4 and 5 were pretreated with Cd as group 2 and thereafter received oral treatment of PEVA for 4 weeks at 100 mg/kg, 200 mg/kg and 400 mg/kg body weight, respectively.RESULTS: Exposure to Cd toxicity significantly induced deleterious alterations in plasma and urine levels of creatinine, urea and glucose as well as creatinine and urea clearance (p < 0.05) in the rat model. There was a significant disturbance in the antioxidant system as revealed by the levels of thiobarbituric acid reactive substance (TBARS) and reduced glutathione (GSH) (p < 0.05) in the kidney tissue of the rats. With marked improvements in renal histoarchitecture, PEVA treatment showed a duration and non dose-dependent ameliorative potential. CONCLUSION: PEVA treatment reversed the compromise of renal function that was induced by Cd toxicity in rat model

All hands on deck: levels of dependence between the EU and other international organizations in peacebuilding

The EU seeks extensive partnership with other international organizations when it comes to security challenges. This is puzzling as the EU relies for its resources mostly on its member states. The relations between the EU and other international organizations have thoroughly been studied, yet scholars rarely question the actual rationale for partnership. We start from resource dependency theory which explains that almost all organizations are dependent on the resources of their partners. Yet we extend this theory by distinguishing between macro, meso and micro-level dependencies. To illustrate resource dependencies between the EU and other international organizations, we analyse EU’s peacebuilding policies in Kosovo, Mali and Armenia. By accounting for macro- and micro-level dependencies we provide a more holistic perspective than conventional meso-level explanations. Our contribution is therefore to expand the scope of the resource dependency theory and provide a framework to analyse dependencies between the EU and other international organizations

Nutrient content and anti-nutritional factors in shea butter (Butryospermum parkii) leaves

Sample of shea-butter leaves were analyzed for, anti-nutrients and proximate composition. The proximate result showed that the leaf has high content of carbohydrate (13.82%) compared to other types of leaves. The content of anti-nutrients observed is low; phytate (0.19%), tannic acid (1.50%) and oxalate (0.80%) and these can be tolerated by the body system. The low level of these constituent will not pose a serious nutritional problem in consumption of shea-butter leaves. The leaf extract was also observed to be a good source of iron (3.80 mg/kg), magnesium (19.16 mg/kg) and potassium (0.61 mg/kg). Three amino acids; valine, phenylalanine and leucine were as well found in the leaf extract

Helminthes parasites of rodents caught around human habitats in Jos, Plateau state, Nigeria

Out of 112 rodents caught from three different locations in the University of Jos premises, 66(58.93%) were positive for helminth parasites. The prevalence rates of helminth parasites in the four species of rodents caught were 82.53% in Xerus erythropus (ground squirrel) 38.30% in Thryonomys swinderianus (cane rat) 70.00% in Rattus rattus (Black rat) and 75.00% in Cricetomys gambianus (Gambian giant rat). There was no significant difference (p>0.05) between the prevalence rates of the helminthes in the different rodent species. Four groups of helminthes, a trematode species, two species of cestodes, four species of nematodes and one species of an acanthocephalan were encountered in the rodents. The prevalence rates for the respective groups of helminthes were 11.61%, 25.00%, 33.93%, and 8.93%. The worm burdens per infected host were 1.85, 9.57, 10.47 and 8.90 for the trematode, cestodes, nematodes and acanthocephalan respectively. The prevalence rates of the different helminth parasites were 11.61, 15.18, 13.39, 18.75, 17.86, 16.96, 1.79 and 8.93% for Gastrodiscus, Hymenolepis nana, H. dimunita, Oesophagostomum, Cyathostomum, Trichuris, Ascaris and Macrocanthorhynchus respectively. Twenty (52.63%) of the 38 male rodents studied and 46(62.16%) of the 74 female rodents were infected by the helminth parasites whose prevalence rates in the male ranged from 0.00% to 15.97% and 2.70% to 22.97% in the female rodents. There was no significant difference (p>0.05) between the prevalence rates of the helminth parasites in both sexes of the rodents. The public health significance of the helminth parasites is discussed. Animal Production Research Avancees Vol. 3 (1) 2007: pp. 6-1