High prevalence of Aeromonas and Pseudomonas infections among cage cultured Pangas catfish from the reservoirs of Maharashtra, India

Cage farming of Pangas catfish (Pangasionodon hypophthalmus) in small reservoirs is primarily profitable. Still, sustainability in terms of disease and environmental impact issues remains unsolved. In the present study, Pangas catfish from selected farms were screened for bacteria and parasites from 2017-18. In the present study, several Gram-negative bacterial species, including Edwardsiella tarda, Aeromonas hydrophila, A. veronii, Pseudomonas putida, Enterobacter cloacae, and Plesiomonas shigelloides, were isolated. A high prevalence of Aeromonas and Pseudomonas infections was noticed in cage farms. The most prevalent isolate was A. veronii (9 isolates), followed by P. aeruginosa and P. putida, revealing the presence of biotic stress. Furthermore, potential human pathogenic bacteria, particularly Klebsiella pneumoniae, P. aeruginosa, Acinetobacter baumannii, Citrobacter freundii, and Morganella morganii, were isolated. Histopathological analysis of the vital organs concluded the extent of damage caused due to the biotic stress in the cage culture system. The antibiotic sensitivity test implied resistance of bacteria for Sulphamethoxazole and Tetracycline. Some of them were resistant to multiple drugs, the risk for public health. Water temperature, dissolved oxygen, pH, Aeromonas, Pseudomonas, and Plesiomonas were identified by principal component analysis as significant abiotic and biotic stress factors. This information helps design predictive disease models

Comparative Seismic Analysis of High Rise Buildings with Different Structural Framing

Now a day it has been observed that modern trend is towards taller and slenderer structures both residential and commercial increasing rapidly. As the height of structure get increases, the building acts as cantilever and get deflected because of its slenderness. For such structure the effects of lateral loads like winds loads, earthquake forces have become more effective which increasing importance for every designer to face with the problem of providing adequate strength and stability against lateral loads with economic consideration. From the previous studies, it has been concluded that there was not much problem in drift failure particularly in lower seismic zones. But as we go to higher zones than the ordinary multistory buildings also face the problem of drift more than the prescribed by the IS code 1893-2002 which become critical limit causing sudden collapse during earthquake. This study focuses on the various provisions to reduce the drift of building and make it more stable. Some of them are providing shear wall, tube structural system and base isolation system. The analysis has performed using ETABS for G+42 multistoried building in zones III.</jats:p

Bidirectional DC-DC Converter for Electric Vehicle

The present work aims at designing and modelling of a bidirectional DC DC converter for driving a Permanent Magnet DC (PMDC) motor for Hybrid Electric Vehicle (HEV) and Electric Bikes (EV) application. Permanent Magnet Brushed DC (PMBDC) motors and Permanent Magnet Brushless DC (PMBLDC) motors are the most popular options that are used for the integration of an electric bicycle and bikes. But despite of the simple controllers and low cost of the PMDC motor its lower efficiency sets it back in choice in the present scenario as compared to the BLDC motors. The present design aims at improving the efficiency of the PMDC motor traction drive system by the incorporation of the bidirectional DC DC converter between the electrical source and the traction motor which in addition to its primary function of providing the traction energy, also facilitates the energy regeneration during braking (in the case of HEV and EV) and during the motion along down the slope(in case of a pedalled electric bicycle).</jats:p

Not Available

Not AvailableCage farming of Pangas catfish (Pangasionodon hypophthalmus) in small reservoirs is primarily profitable. Still, sustainability in terms of disease and environmental impact issues remains unsolved. In the present study, Pangas catfish from selected farms were screened for bacteria and parasites from 2017-18. In the present study, several Gram-negative bacterial species, including Edwardsiella tarda, Aeromonas hydrophila, A. veronii, Pseudomonas putida, Enterobacter cloacae, and Plesiomonas shigelloides, were isolated. A high prevalence of Aeromonas and Pseudomonas infections was noticed in cage farms. The most prevalent isolate was A. veronii (9 isolates), followed by P. aeruginosa and P. putida, revealing the presence of biotic stress. Furthermore, potential human pathogenic bacteria, particularly Klebsiella pneumoniae, P. aeruginosa, Acinetobacter baumannii, Citrobacter freundii, and Morganella morganii, were isolated. Histopathological analysis of the vital organs concluded the extent of damage caused due to the biotic stress in the cage culture system. The antibiotic sensitivity test implied resistance of bacteria for Sulphamethoxazole and Tetracycline. Some of them were resistant to multiple drugs, the risk for public health. Water temperature, dissolved oxygen, pH, Aeromonas, Pseudomonas, and Plesiomonas were identified by principal component analysis as significant abiotic and biotic stress factors. This information helps design predictive disease models.Not Availabl