Transformations of q-boson and q-fermion algebras

We investigate the algebras satisfied by q-deformed boson and fermion oscillators, in particular the transformations of the algebra from one form to another. Based on a specific algebra proposed in recent literature, we show that the algebra of deformed fermions can be transformed to that of undeformed standard fermions. Furthermore we also show that the algebra of q-deformed fermions can be transformed to that of undeformed standard bosons.Comment: 7 pages, RevTe

No Eigenvalue in Finite Quantum Electrodynamics

We re-examine Quantum Electrodynamics (QED) with massless electron as a finite quantum field theory as advocated by Gell-Mann-Low, Baker-Johnson, Adler, Jackiw and others. We analyze the Dyson-Schwinger equation satisfied by the massless electron in finite QED and conclude that the theory admits no nontrivial eigenvalue for the fine structure constant.Comment: 13 pages, Late

A STUDY ON KANDUGHNA TAILA IN FILARIAL LYMPHANGITIS AND ULCERS

The disease Shlipada is very common in Andhra Pradesh Coastal belts. The chronic filarial patients used to suffer from acute periodic episodes. During these acute periodic episodes majority of the filarial patients develop lymphangitis (inflammation of lymphatic vessel), wounds and ulcers in affected legs. Some of the patients develop oozing blisters and pustules. Patients with these acute symptoms suffer from severe pain and tenderness and un-hygiene may lead to secondary bacterial infections. These periodic episodes often end with fibrosis and permanent swelling (Lymphedema). Many Ayurvedic herbal and herbo-mineral drugs were successfully used internally to reduce chronic filarial swelling (lymphedema), but there is an ultimate need to find an external application to reduce the acute symptoms like lymphangitis, wounds and ulcers. Kandughna taila is a Ayurvedic herbal oil prepared from Kandughna Dashaimani (a group of 10 drugs indicated in Itching) of Caraka samhita. This Kandughna taila was selected to study externally on Filarial patients. As a part of PhD study to find the efficacy of drug this oil alone was used in 28 patients in an open clinical trail. Encouraging results were observed during and after 30 days of treatment. Out of 28 cases, 8 (28.8%) got good response, 15 (53.6%) got fair response, 2 (7.1%) got poor response and 3 (10.7%) cases did not show any response. Overall 63.68% relief was found in all acute clinical parameters. Parameter wise 62% of relief in lymphangitis, 56.1% in pain, 62.5% in tenderness, 77.78% relief in wound/ ulcer were found. In statistical analysis based paired t-test relief on acute symptoms like lymphangitis, pain, tenderness, wound were found highly significant (P<0.0001). Statistically overall effect of treatment on acute symptoms was also found highly significant (P<0.0001)

Polarized light based scheme to monitor column performance in a continuous foam fractionation column

<p>Abstract</p> <p>Background</p> <p>A polarized light scattering technique was used to monitor the performance of a continuously operated foam fractionation process. The <it>S</it>₁₁and <it>S</it>₁₂parameters, elements of the light scattering matrix, combined together (<it>S</it>₁₁<it>+S</it>₁₂) have been correlated with the bubble size and liquid content for the case of a freely draining foam. The performance of a foam fractionation column is known to have a strong dependence on the bubble size distribution and liquid hold up in foam. In this study the enrichment is used as a metric, representative of foam properties and column performance, and correlated to the <it>S</it>₁₁<it>+S</it>₁₂parameter.</p> <p>Results</p> <p>Three different superficial gas velocities (6.9, 7.5, and 10.6 cm/min) and four different pH values (4.8, 5.5, 6.5, and 7.5) are tested for the foam fractionation of a dilute solution of bovine serum albumin (0.1 mg/ml). As a result, at scattering angle of 125° the magnitude of <it>S</it>₁₁<it>+S</it>₁₂is higher as the pH increases. When the bubble sizes are small with a larger liquid content, the foam is strongly back scattering resulting in lower values of <it>S</it>₁₁<it>+S</it>₁₂(at 125°) at pH = 4.8. The light scattering data and the enrichment values are measured over a period of 90 minutes and correlated using a linear model. The predictive power of the model was found to be statistically significant.</p> <p>Conclusion</p> <p>The time average <it>S</it>₁₁<it>+S</it>₁₂shows a direct proportionality with the enrichment value, indicating that polarized light should be a valuable technique for monitoring foam fractionation columns. Additional knowledge of the nature of dependence between foam properties and <it>S</it>₁₁<it>+S</it>₁₂combined with models relating the enrichment to the bubble size and liquid hold up is needed to develop an accurate diagnostics tool for monitoring enrichment utilizing <it>S</it>₁₁<it>+S</it>₁₂measurements.</p

Studies on reproductive organs and morpho-anatomical features of leaf and stem in three traits of Vinca rosea L.

Periwinkle or Vinca rosea L. has medicinal importance with three phenotypes i.e., Pink, Red eye and White. The present investigation distinguishes the three traits i.e., white, pink and red-eyed flower-bearing traits of V. rosea based on morphology, palynology, pollen grain germination and study of anatomical features of leaf, stem and variations in parts of the flower. The results revealed that significant differences were recorded in stomatal frequency, stomatal index, size of the petals, pollen viability and pollen germination. The highest per cent viability appears in pink flower-bearing plants (98.8%) followed by red-eyed flower-bearing plants (34.3%) and White flower-bearing plants (34%). Similarly, the percentage germination of pollen grains is high in pink flower-bearing plants (98.1%) followed by red-eyed flower-bearing plants (33.3%) and white flower-bearing plants (33.3%)

Studies on reproductive organs and morpho-anatomical features of leaf and stem in three traits of Vinca rosea L.

185-193Periwinkle or Vinca rosea L. has medicinal importance with three phenotypes i.e., Pink, Red eye and White. The present investigation distinguishes the three traits i.e., white, pink and red-eyed flower-bearing traits of V. rosea based on morphology, palynology, pollen grain germination and study of anatomical features of leaf, stem and variations in parts of the flower. The results revealed that significant differences were recorded in stomatal frequency, stomatal index, size of the petals, pollen viability and pollen germination. The highest per cent viability appears in pink flower-bearing plants (98.8%) followed by red-eyed flower-bearing plants (34.3%) and White flower-bearing plants (34%). Similarly, the percentage germination of pollen grains is high in pink flower-bearing plants (98.1%) followed by red-eyed flower-bearing plants (33.3%) and white flower-bearing plants (33.3%)

Interaction of membrane-spanning proteins with peripheral and lipid-anchored membrane proteins: perspectives from protein- lipid interactions (Review)

Studies of lipid-protein interactions in double-reconstituted systems involving both integral and peripheral or lipid- anchored proteins are reviewed. Membranes of climyristoyl phosphatidylglycerol containing either myelin proteolipid protein or cytochrome c oxidase were studied. The partner peripheral proteins bound to these membranes were myelin basic protein or cytochrome c, respectively. In addition, the interactions between the myelin proteolipid protein and avidin that was membrane-anchored by binding to N-biotinyl phosphatidylethanolamine were studied in dimyristoyl phosphatidylcholine membranes. Steric exclusion plays a significant role when sizes of the peripheral protein and transmembrane domain of the integral protein are comparable. Even so, the effects on avidin-linked lipids are different from those induced by myelin basic protein on freely diffusible lipids, both interacting with the myelin proteolipid protein. Both the former and the cytochrome c/cytochrome oxidase couple evidence a propagation of lipid perturbation out from the intramembrane protein interface that could be a basis for formation of microdomains

Bronchodilator activity of Ocimum sanctum Linn. (tulsi) in mild and moderate asthmatic patients in comparison with salbutamol: a single-blind cross-over study

Background: Bronchial asthma is one of the commonest chronic inflammatory diseases. The drugs available to treat bronchial asthma such as, beta-2 agonists, though very effective are associated with adverse effects. Therefore, the Ocimum sanctum (Tulsi) which was shown to have antiasthmatic activity in Ayurveda, is evaluated in this study.Objectives: To evaluate the bronchodilator activity of Ocimum sanctum Linn. in mild and moderate asthma and compare its efficacy with the standard bronchodilator drug, Salbutamol.Methods: This is a single-blind cross-over study. Capsules of Ocimum sanctum Linn. (200 mg, twice daily) and Salbutamol sulphate (2 mg, twice daily) were administered in 41 patients. Each drug was administered for a period of one week with a washout period of one week between the two drug schedules. FEV1 and PEFR were recorded in these patients to assess the bronchodilator activity before the drug administration, on 4th and on 7th day of administration of Ocimum sanctum and the parameters obtained were compared with that of the standard drug, Salbutamol.Results: Ocimum sanctum 200mg twice daily produced significant improvement in both FEV1 and PEFR values, on 4th and 7th day and also produced improvement in symptoms of asthma. On comparing the results with that of Salbutamol 2mg twice daily, the bronchodilator activity of Ocimum sanctum was found to be less efficacious, where Salbutamol produced very highly significant improvement in FEV1 and PEFR values on both 4th and 7th day.Conclusions: Our results suggest that Ocimum sanctum Linn. possesses significant bronchodilator activity in mild and moderate bronchial asthma

Prediction of the in-plane permeability and air evacuation time of fiber-placed thermoplastic composite preforms with engineered intertape channels

The two main void removal mechanisms during vacuum-bag-only (VBO) consolidation of thermoplastic composites are through-thickness diffusion and in-plane air evacuation. The automated fiber placement (AFP) process allows for the creation of preforms with an engineered intertape channel network by deliberately introducing spacing between the tapes that can facilitate air evacuation during the VBO consolidation. However, it is unclear what dimensions of the intertape channels allow for effective in-plane air evacuation. The current research presents a predictive simulation tool to optimize the intertape channel dimensions for effective in-plane air evacuation. An analytical method is developed to calculate the in-plane permeability tensors of the composite preform with uniform intertape channel dimensions. In addition, a more elaborate mesoscale method is developed that estimates the in-plane permeability tensor of the engineered intertape channel network based on the distributions in intertape channel dimensions. Finally, a finite difference model is implemented to calculate the time required for air evacuation as a function of the in-plane permeability tensors of the preform and its in-plane dimensions. The results from the models indicated that in-plane air evacuation through the engineered intertape channel network is quick, and it takes only a few minutes to evacuate 99% of the air from large preforms like fuselage panels