71 research outputs found

    Natural Adsorbents for Agricultural Waste Water Treatment

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    In now a days, water problems have been one of the focus of great International concern and debate. Environmental pollution is mainly due to rapid industrialization. It is a demanding problem for maintaining the quality and cleanness of water. The discharges of industrial wastes in to aquatic bodies are a great threat to the aquatic life as well as for human health also. It is a matter of great importance due to their toxicity and after effects. Adsorption is an ecofriendly technique used now a days to treat the agricultural waste water. The sewage water is firstly filtered through suitable low cost and ecofriendly filter medias. Then the filtered water is subjected to adsorption using low cost and easily available natural adsorbents like banana peels and M. Thilapia fish scales. The combination of both these adsorbents was used for treatment of waste water with different proportion of height and contact time. The treated water obtained will have a considerable decrease in TDS, bacterial count, nitrogen content, Iron content, Potassium, TSS, turbidity, phosphorous, etc. as compared to initial characteristics of agro wastewater. This method is highly economic, cost effective and eco-friendly. This helps in reducing the water scarcity with the use of low cost adsorbents

    Automatic Vehicle Tracking System Based on Fixed Thresholding and Histogram Based Edge Processing

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    Automatic detection, extraction and recognition of vehicle number plate region in traffic control systems is one of the prominent application in Computer vision. The drastic increase in number of vehicles in the current generation greatly increases the complexity in tracking the vehicles through the human visual system, manual procedure of controlling traffic and enforcement of various laws and rules is not sufficient for smooth control of traffic. This urges the need for development of technology that can automate this process. This paper mainly focuses on the development of an automatic number plate extraction and recognition algorithm by incorporating constructs like edge detection, horizontal and vertical edge processing using fixed threshold technique. The extracted number plate region is again processed using template matching algorithm for the recognition of the characters embossed on the number plate with respect to every individual piece of number plate. The algorithm developed has achieved an accuracy of around 100% and works for both front and rear images of the car

    Effect of brimonidine on central corneal thickness in normal tension glaucoma patients

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    Background: Brimonidine is a potent ocular hypotensive agent widely used in glaucoma treatment. A reduction in central corneal thickness can lead to an underestimation of intraocular pressure by Goldmann applanation tonometry and vice versa. The aim of this study is to determine whether brimonidine has an effect on central corneal thickness.Methods: 30 eyes of patients who attended the Ophthalmology OPD between the time period October 2017 and June 2018 who were newly diagnosed with normal tension glaucoma with no history of any systemic illness or not on any medication were included. Each patient underwent a complete ophthalmic evaluation including fundus examination, visual field assessment, intraocular pressure, central corneal thickness measurement by pachymetry before as well as 1 month and 6 months after starting treatment with 0.2% topical brimonidine twice daily.Results: Administration of brimonidine 0.2% resulted in an increase in central corneal thickness from 525±21 µm before starting brimonidine to 528±21 µm (p<0.05) after 1 month and 535±20 µm (p<0.001) after 6 months. It also resulted in a reduction in intraocular pressure from an initial value of 16±2 mmHg before starting brimonidine to 14±2 mmHg (p<0.05) and 13±2 mmHg (p<0.05), 1month and 6 months after starting treatment, respectively.Conclusions: The data presented in this study show that topical administration of 0.2% brimonidine twice daily results in a significant increase in central corneal thickness in patients with normal tension glaucoma

    DEVELOPMENT AND EVALUATION OF PEDIATRIC DRUG FORMULARY IN TERTIARY CARE HOSPITAL, ERODE.

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    ObjectivesTo develop and evaluate a pediatric hospital formulary in a tertiary care hospital erode. 2)To provide an updated information about the use of medicines to physicians, pharmacists and other healthcare professionals in the hospital for appropriate use of the drugsMethodsThe prospective developmental study was carried out in a tertiary care hospital, Erode, Tamil Nadu for a period of six months. A survey was conducted using a validated questionnaire for the identification of the need and content of pediatric formulary among physicians in the hospital.The pediatric formulary was developed and the quality was evaluated using a validated questionnaire form.The content of the formulary was framed based on the opinion of physicians.ResultsThe prepared pediatric formulary was assessed with the validated feedback questionnaire. Out of 58 doctors 50 (86.2%) doctors were satisfied with the developed formulary for about 29 (50%) doctors formulary was very useful in their clinical practice and. The necessity of pediatric formulary was supported by 80 % of physcians at first but after the implementation of formulary 86% were highly satisfied with the formulary and appreciated the work that was carried out to a great level.Conclusion The formulary was handy, user friendly and saves the precious time of busy physician. It may also promotesthe safe and effective use of medicines thereby minimizing drug related problems in pediatric population. Key words: Formulary, paediatrics, clinical practice. Â

    Simulation of Vector Controlled Adjustable Speed System of Doubly Fed Induction Machine

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    In this work the performance of vector speed control of doubly fed induction machine is considered. Based on the analysis of doubly fed induction machine dynamic mathematical model and the vector control principle, the construction of the motor control system has been completed. Doubly fed induction machine module, the vector controller module, Clark transform module, Park transform module, inverter module, flux module, speed-conditioning module have been set up by0adopting the idea of modular in MATLAB/SIMULINK environment. Through the organic integration of functional modules, the vector control doubly fed induction machine system has been constituted. Simulation results show the changes in the machine electromagnetic torque, the dynamic changes of speed curve, which demonstrate that the real system can be well simulated with fast dynamic response speed, steady-state small of static error, and strong ability of anti-load disturbance

    Evolution of a Large, Conserved, and Syntenic Gene Family in Insects

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    The Osiris gene family, first described in Drosophila melanogaster, is clustered in the genomes of all Drosophila species sequenced to date. In D. melanogaster, it explains the enigmatic phenomenon of the triplo-lethal and haploinsufficient locus Tpl. The synteny of Osiris genes in flies is well conserved, and it is one of the largest syntenic blocks in the Drosophila group. By examining the genome sequences of other insects in a wide range of taxonomic orders, we show here that the gene family is well-conserved and syntenic not only in the diptera but across the holometabolous and hemimetabolous insects. Osiris gene homologs have also been found in the expressed sequence tag sequences of various other insects but are absent from all groups that are not insects, including crustacea and arachnids. It is clear that the gene family evolved by gene duplication and neofunctionalization very soon after the divergence of the insects from other arthropods but before the divergence of the insects from one another and that the sequences and synteny have been maintained by selection ever since

    Anti-oxidant effect of N-acetyl cysteine in dogs with chronic kidney disease

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    The present study was carried out with the objectives of assessing oxidative stress in dogs with chronic kidney disease (CKD) and evaluating response to treatment with N-acetyl cysteine (NAC). Dogs diagnosed with stage III CKD as per the guidelines of the International Renal Interest Society (IRIS) were included in the study. The animals were divided into two groups. Animals of one group were given standard therapy for CKD and the animals of the second group were administered NAC along with standard therapy. Oxidative stress parameters such as total antioxidant status (TAS), serum malondialdehyde (MDA) level and plasma glutathione peroxidase (GSH-Px) activity were studied. On the day of presentation, a significant increase in the mean values of serum MDA and TAS were observed in diseased animals compared to healthy animals, whereas a significant decline was noted in plasma GSH-Px activity. After treatment, a significant decline in serum MDA and TAS were recorded in animals of group II receiving NAC therapy. A significant increase in plasma glutathione GSH-Px activity was recorded in this group. N-acetyl cysteine therapy was found to be effective in the management of oxidative stress in dogs with chronic kidney disease

    Antioxidant and cytotoxic activities of sulfated polysaccharides from five different edible seaweeds

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    In recent times, there has been a growing interest in the exploration of antioxidants and global trend toward the usage of seaweeds in the food industries. The low molecular weight up to 14 kDa sulfated polysaccharides of seaweeds (Portieria hornemannii, Spyridia hypnoides, Asparagopsis taxiformis, Centroceras clavulatum and Padina pavonica) were evaluated for in vitro antioxidant activities and cytotoxic assay using HeLa cell line and also characterized by FTIR. The high yield (7.74% alga dry wt.) of sulfated polysaccharide was observed in P. hornemannii followed by S. hypnoides (0.69%), C. clavulaum (0.55%) and A. taxiformis (0.17%). In the brown seaweed P. pavonica, the sulfated polysaccharide yield was 2.07%. High amount of sulfate was recorded in the polysaccharide of A. taxiformis followed by C. clavulaum, P. pavonica, S. hypnoides and P. hornemannii as indicative for bioactivity. The FTIR spectroscopic analysis supports the sulfated polysaccharides of S. hypnoides, C. clavulatum and A. taxiformis are similar to agar polymer whereas the spectral characteristics of P. hornemannii have similarities to carrageenan. The higher DPPH activity and reducing power were recorded in the polysaccharide of brown seaweed P. pavonica than the red seaweeds as follows: DPPH activities: S. hypnoides > A. taxiformis > C. clavulatum > P. hornimanii; Reducing power: A. taxiformis > P. hornimanii > S. hypnoides > C. clavulatum. The polysaccharide fractions contain up to 14 kDa from red seaweeds P. hornemannii and S. hypnoides followed by brown seaweed P. pavonica exhibit cytotoxic activity in HeLa cancer cell line (and are similar to structural properties of carrageenan extracted from P. hornemannii). The low molecular weight agar like polymer of S. hypnoides and alginate like brown seaweed P. pavonica showing better in vitro antioxidant activities that are capable of exhibiting cytotoxicity against HeLa cell line can be taken up further in-depth investigation for nutraceutical study.University of Algarve: DL 57/2016info:eu-repo/semantics/publishedVersio

    Examining the Effectiveness of Virtual Training under the Kirkpatrick Model: A Post-COVID Study

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    Teaching and training through online tools were used by most Higher Education Institute (HEIs) worldwide during COVID-19 to cater to the needs of students who stay far away from educational institutions. After the pandemic, the virtual model of education and training became a trend. The students and teachers are also more used to this trend which is giving more opportunities to both learners and instructors. One of the notable benefits of virtual teaching and learning platform is that it provides a flexible environment to gain knowledge, skills, and attitude simultaneously along with formal off-line education. From the earlier studies it is found that the majority of studies have focused on traditional, offline training methods and only a few studies have focused on virtual training. Therefore, the present study examined the effectiveness of virtual training using the Kirkpatrick model. For this purpose, a research instrument based on the Kirkpatrick model was constructed and distributed among the UG and PG students in Mangalore City. A total of 143 responses were collected, of which 132 were completed responses and all of them were considered for analysis. Descriptive statistics and one sample t-test are employed to analyse and interpret the data. The findings revealed that virtual training is more effective compared to traditional and offline training methods. Henceforth, the training and education provided through virtual platforms made significant contributions to the employability of youngsters
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