1,076 research outputs found

    Impact Of Environmental Pollutions And Waste Management

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    This paper will discuss the problem of environmental pollution and waste management. Everything that surrounds us is directly or indirectly connected to the environment. Not only the man, but also other living beings as well as the nature (volcanic eruptions, earthquakes) have effects on environmental pollution. Environmental pollution is present from the very beginning of life, but today it is a serious problem that threatens the survival of mankind. During the preparation of scientific research, we noticed a problem: “What is the influence of the waste management on the environment?” Today, every person living on planet Earth is worried about environmental pollution because the consequences faced every day, through the air we breathe, the food and water we consume, through pollution and radiation we are exposed to. Also, the consequences of environmental problems are manifested through the lack of natural resources, extinction of plant and animal species, as well as the problems in the global ecosystems and biochemical processes. Based on the research problem we can hypothesize: Yes, waste management has a great impact on the environment

    Anticonvulsant activity of Adhatoda vasica leaves by pentylenetetrazol model: preliminary evaluation in rats

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    Background: Epilepsy is a disorder characterised by recurrent seizures of cerebral origin with episodes of sensory, motor phenomenon with or without loss of consciousness. The present study was taken up to evaluate the anticonvulsant effect of aqueous extract of leaves of Adhatoda vasica in rats. Objectives of this study is to evaluate the effect of aqueous extract of Adhatoda vasica leaves on Pentylenetetrazol induced seizures in albino rats and to compare the effect of aqueous extract of Adhatoda vasica leaves with standard dose of sodium valproate on Pentylenetetrazol induced seizures in albino rats.Methods: Anticonvulsant activity of aqueous extract of Adhatoda vasica was analysed using PTZ (Pentylenetetrazol) model. Groups used were distilled water as control group, Sodium valproate as standard for Pentylenetetrazol and two doses of aqueous extract of Adhatoda vasica (100mg/kg and 200 mg/kg) for this screening model. Parameters observed for PTZ models were abolition of clonic seizures and time duration between injection of PTZ and onset of seizures.Results: In PTZ model, test group at 200 mg/kg showed 33.33% protection for abolition of clonic seizures, though not comparable to standard group. There was significant increase in the duration of onset of clonic seizures after PTZ injection in both test groups (at 100 mg/kg and 200 mg/kg) when compared to control group.Conclusions: Aqueous extract of leaves of Adhatoda vasica has shown significant anticonvulsant action in PTZ model

    Evaluation of anticonvulsant activity of aqueous extract of Adhatoda vasica leaves by MES model in rats

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    Background: Epilepsy is the commonest neurological condition affecting people of all ages, race and social class. The present study was taken up to evaluate the anticonvulsant effect of aqueous extract of leaves of Adhatoda vasica in rats. To evaluate the effect of aqueous extract of Adhatoda vasica leaves on maximal electroshock model in albino rats and to compare the effect of aqueous extract of Adhatoda vasica leaves with standard dose of Phenytoin on Maximal electro shock model.Methods: Anticonvulsant activity of aqueous extract of Adhatoda vasica was analysed using MES (Maximal electroshock) model. Phenytoin (25mg/kg) as standard for Maximal electroshock, and two doses of aqueous extract of Adhatoda vasica (100mg/kg and 200mg/kg) were used as test drugs. Parameters observed in MES were abolition of hind limb tonic extension (HLTE) and time taken to regain righting reflex.Results: In MES model, control group showed 0% protection and standard phenytoin group showed 100% protection. Aqueous extract of Adhatoda vasica at 100mg/kg and 200mg/kg showed 33.33% and 50% protection from seizures respectively. The mean duration of time to regain righting reflex was significantly reduced in Adhatoda vasica groups when compared to control group (p 0.05) were obtained.Conclusions: Aqueous extract of leaves of Adhatoda vasica has shown significant anticonvulsant action in MES model

    Metabolome Searcher: A High Throughput Tool for Metabolite Identification and Metabolic Pathway Mapping Directly from Mass Spectrometry and Using Genome Restriction

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    Background Mass spectrometric analysis of microbial metabolism provides a long list of possible compounds. Restricting the identification of the possible compounds to those produced by the specific organism would benefit the identification process. Currently, identification of mass spectrometry (MS) data is commonly done using empirically derived compound databases. Unfortunately, most databases contain relatively few compounds, leaving long lists of unidentified molecules. Incorporating genome-encoded metabolism enables MS output identification that may not be included in databases. Using an organism’s genome as a database restricts metabolite identification to only those compounds that the organism can produce. Results To address the challenge of metabolomic analysis from MS data, a web-based application to directly search genome-constructed metabolic databases was developed. The user query returns a genome-restricted list of possible compound identifications along with the putative metabolic pathways based on the name, formula, SMILES structure, and the compound mass as defined by the user. Multiple queries can be done simultaneously by submitting a text file created by the user or obtained from the MS analysis software. The user can also provide parameters specific to the experiment’s MS analysis conditions, such as mass deviation, adducts, and detection mode during the query so as to provide additional levels of evidence to produce the tentative identification. The query results are provided as an HTML page and downloadable text file of possible compounds that are restricted to a specific genome. Hyperlinks provided in the HTML file connect the user to the curated metabolic databases housed in ProCyc, a Pathway Tools platform, as well as the KEGG Pathway database for visualization and metabolic pathway analysis. Conclusions Metabolome Searcher, a web-based tool, facilitates putative compound identification of MS output based on genome-restricted metabolic capability. This enables researchers to rapidly extend the possible identifications of large data sets for metabolites that are not in compound databases. Putative compound names with their associated metabolic pathways from metabolomics data sets are returned to the user for additional biological interpretation and visualization. This novel approach enables compound identification by restricting the possible masses to those encoded in the genome

    Surveillance of multidrug resistant bacteria pathogens from female infertility cases

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    Antibiotic resistance is a public health problem of increasing magnitude. Female reproductive system is vulnerable to a number of diseases. Diseased condition results in infertility, menstrual irregularity, pregnancy loss, and in association with pregnancy, morbidity to both the mother and child increases. In the present work, the bacteria pathogens were isolated from the endometrial sample of 50 female infertility cases among which 42 cases were positive for the pathogens. This study reveals that Escherichia coli was the most dominant, followed by Enterococcus faecalis, Pseudomonas aeruginosa, Streptococcus sp., and Enterobacter. The isolates were characterized and its susceptibility against important antibiotics were performed. Highest sensitivity was observed with gatifloxacin, imipenam and piperacillin and tazobactum. Thus, according to this study, these antibiotics can be recommended against multi drug resistant bacteria pathogens.Keywords: Multidrug resistance, female infertility, bacteria pathogensAfrican Journal of Biotechnology Vol. 12(26), pp. 4129-413

    Probiotic Effect of Lactobacillus Isolates Against Bacterial Pathogens in Fresh Water Fish

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    A total of 59 Lactobacillus isolates were isolated from 5 different fresh water fish such as Cat fish ( Clarias orientalis) , Hari fish (Anguilla sp), Rohu fish ( Labeo rohita), Jillabe fish (Oreochromis sp) and Gende fish ( Punitus carnaticus). Among the 59 isolates only 4 Lactobacillus isolates were selected for further study. Based on morphological and biochemical characteristics, the isolates were identified as Lactobacillus sp. The pathogen were isolated from infected cat fishes, characterized and identified as Vibrio parahaemolyticus, Aeromonas sp and Aeromonas salmonicida. The Lactobacillus isolates were screened for antagonistic activity against Aeromonas, Vibrio sp. by agar diffusion assay. Among the 4 isolates, Lactobacilli RLD2 showed significant antagonistic activity against Aeromonas and Vibrio sp alone. and was further evaluated by standard plate count assay for the viability of pathogen. The isolate was multiplied and the fish feed was supplement with Lactobacillus isolates. The results reveal that the size, weight of the fish was statically increased in comparison to that of control fish. The present study concluded that the Lactobacillus isolates could be used as probiotic bacteria in aquaculture, to manage aeromonasis

    Analysis of Ayyanarthu Wind Farm with and without Battery Energy Storage System

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    This paper deals with the battery energy storage system is used in Ayyanarthu wind farm which analysing the variation in electrical parameters like voltage level, per unit value and power value should not vary even the battery energy storage system is applied in the windfarm and battery integrated with the windfarm can reduce the variability especially under the peak load conditions and also reduce the power quality problems, it can analyse through the simulation. DigSilent power factory tool software is used to design and analysis the windfarm the real data in windfarm for 24 hours. Battery energy storage system (BESS) is used to store the excess power because the wind is not constant, it will vary with time and natural climatic changes so that can store the power when the generation is high and the stored power can used when the power demand is high because now a days the population is high so the consumption of power is increasing and inject the surplus power to grid. This paper also highlights the need of storing power in order to strengthen the power and voltage levels. BESS further helps main three challenges i.e. smoothing the voltage levels, capacity firming and time shifting thus the battery energy storage system regulates the active power in a modern day grid
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