15 research outputs found

    Dynamical Behavior of an Eco-epidemiological Model Incorporating Prey Refuge and Prey Harvesting

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    In this paper an eco-epidemiological model incorporating a prey refuge and prey harvesting with disease in the prey-population is considered. Predators are assumed to consume both the susceptible and infected prey at different rates. The positivity and boundedness of the solution of the system are discussed. The existence and stability of the biologically feasible equilibrium points are investigated. Numerical simulations are performed to support our analytical findings

    Live visualizations of single isolated tubulin protein self-assembly via tunneling current: effect of electromagnetic pumping during spontaneous growth of microtubule

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    As we bring tubulin protein molecules one by one into the vicinity, they self-assemble and entire event we capture live via quantum tunneling. We observe how these molecules form a linear chain and then chains self-assemble into 2D sheet, an essential for microtubule, —fundamental nano-tube in a cellular life form. Even without using GTP, or any chemical reaction, but applying particular ac signal using specially designed antenna around atomic sharp tip we could carry out the self-assembly, however, if there is no electromagnetic pumping, no self-assembly is observed. In order to verify this atomic scale observation, we have built an artificial cell-like environment with nano-scale engineering and repeated spontaneous growth of tubulin protein to its complex with and without electromagnetic signal. We used 64 combinations of plant, animal and fungi tubulins and several doping molecules used as drug, and repeatedly observed that the long reported common frequency region where protein folds mechanically and its structures vibrate electromagnetically. Under pumping, the growth process exhibits a unique organized behavior unprecedented otherwise. Thus, “common frequency point” is proposed as a tool to regulate protein complex related diseases in the future.Japan. Ministry of Education, Culture, Sports, Science and Technology.Asian Office of Aerospace Research and Development (AOARD) (FA2386-11-1-0001AOARD104173)Asian Office of Aerospace Research and Development (AOARD) (FA2386-10-1-4059 AOARD-10-4059

    Approximation of Fourier Series of a function of Lipchitz class by Product Means

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    Lipchitz class of function had been introduced by McFadden [8]. Recently dealing with degree of approximation of Fourier series of a function of Lipchitz class Nigam [12] and Misra et al.[9,10,11] have established certain theorems. Extending their results, in this paper a theorem on degree of approximation of a function by product summability has been established

    Immunomodulation and interferon gamma gene expression in sutchi cat fish, Pangasianodon hypophthalmus: effect of dietary fucoidan rich seaweed extract (FRSE) on pre and post challenge period

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    A 45-days feeding trial was conducted to study the immunomodulatory effect and interferon gamma gene expression of dietary fucoidan rich seaweed extract (FRSE) from Sargassum wightii on Pangasianodon hypophthalmus fingerlings. One hundred and eighty fingerlings were distributed into six experimental groups in triplicates. Each group was stocked with 10 fish and fed to satiation with iso-nitrogenous (34.96 � 0.09–35.18 � 0.03 CP%) and iso-caloric (368.65 � 0.86–375.09 � 0.26 Kcal/100 g) purified diets containing either 0% FRSE (control), 1% FRSE (TF1), 2% FRSE (TF2), 3% FRSE (TF3), 3% seaweed powder (TS3) or 6% seaweed powder (TS6) in the feed. After feeding trial the experimental fish were challenged with Aeromonas hydrophila. Immunological parameters like respiratory burst activity, lysozyme activity, phagocytic activity and total leukocyte count (TLC) were increased with the increasing level of dietary FRSE, whereas serum Albumin/ Globulin (A/G) ratio and blood glucose level exhibited decreasing trend (P < 0.05)

    A retrospective study on uterine rupture at a tertiary hospital, India

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    Objective: The study aims to understand the causes and the outcomes of uterine rupture in a 1-year retrospective study at a tertiary hospital in Raigarh, India. Methods: This study is a retrospective study of the patients who were diagnosed with the uterine rupture at the department of obstetrics (Gynecology) at GMC Raigarh Chhattisgarh from March 2015 to April2016.Data collection was done from the clinical assessments and with different exams of 61 participants following which the statistical analysis was done. Results: as per the findings, there were certain conditions such as the hemoperitoneum and the fetus outside uterus are the riskiest ones when it comes to uterine rupture. Conclusion: the most important findings were related to the frequent problems and risk factors associated rupture of uterus and certain age groups are more prone to this medical emergency which is why, right medical care is needed

    Observational study of fetomaternal outcome in COVID -19 positive patients

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    Background: The impact of COVID 19 on the pregnant women has been of great concern for the gynecology, community medicine as well as the obstetrics domain of medical sciences. The different levels of the risks are posing to the health of the expecting individual, and this is chiefly due to the COVID 19 complications that is vital to note which can have a certain influence on the fetal health as well. Aim: Observational study of Fetomaternal outcome in covid -19 positive patients. Materials and Methods: There are certain symptoms of the covid 19 that shows and there are others that can be masked in certain individuals of the chosen subpopulation who are the main participants of the study, in this retrospective observational study, a total 67 participants have been included in order to find and analyze the overall set of the foetomaternal outcomes that is vital to understand. Results: The effect of the COVID 19 has been found to be different on different person but the fetal outcome is mostly safe and in rare cases, there exists chances of mortality. But the intensive care units need to be prepared and kept ready for the severe complications, as for these cases

    Vermiculated sailfin catfish, Pterygoplichthys disjunctivus (Actinopterygii Siluriformes: Loricariidae): Invasion, biology, and initial impacts in east Kolkata Wetlands, India

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    Background. The East Kolkata Wetlands in India (a Ramsar site) are sewage-fed, nutrient-rich water bodies successfully used for fish production. The vermiculated sailfin catfish, Pterygoplichthys disjunctivus (Weber, 1991), exotic to India, has invaded these wetlands. The management and control of this catfish has been hindered, because of the lack of information on its abundance, population structure, biological traits, level of establishment, and competition with native fish species. Materials and methods. Within 2013–2015 studies were carried out on the population structure of P. disjunctivus, its food habits, reproductive biology, and initial impacts in the wetlands through monthly and seasonal collection of samples, examination of food items, reproductive parameters, catch data, and gathering fishers experience. Results. The length (TL) and weight of the specimens ranged from 10 to 55 cm and from 120 to 1250 g, respectively. Major food items of the catfish were detrital matter (%IRI 56), unidentified plant matter (%IRI 11), fish eggs (%IRI 11), polychaete worms (%IRI 5), and other minor items (%IRI 0.3 to 4). At 50% similarity, the food items of P. disjunctivus overlapped with that of Macrognathus pancalus, Channa punctata, Nandus nandus, Anabas testudineus, Clarias batrachus, Oreochromis niloticus, Cirrhinus mrigala, and Cyprinus carpio while at 80% it overlapped with that of C. mrigala and C. carpio. The fecundity of P. disjunctivus, in the wetlands, was the highest recorded for the species. Females attained the first maturity at 24 cm TL and reproduced multiple times within July–November. The breeding period of the species overlapped with 13 native fish species, of which it seriously overlapped with that of Gudusia chapra, Amblypharyngodon mola, Pethia conchonius, P. ticto, N. nandus, C. punctata, and A. testudineus. The sailfin catfish has established reproducing populations in the wetlands and reached ‘invasive’ proportions constituting 4.83% (300.04 t · year–1) of the mean annual fish catch (6203.85 t · year–1) from the wetlands. The invasive risk assessment showed a high risk of the species in the current scenario and probable climate change scenarios in future in the region. Conclusions. Pterygoplichthys disjunctivus has successfully colonized the sensitive East Kolkata Wetlands, which might easily spread to neighbouring water bodies including the sensitive Ganga River and Sundarban mangroves and cause ecological and economic disturbance unless preventive measures are taken as the species has high invasive risk in the region.Water Resource
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