AMBIENT AIR QUALITY NEAR KAZIRANGA NATIONAL PARK, ASSAM

The work investigates the concentration of the pollutants PM 10, PM 2.5, SOx, and NOx from various sources like automobiles, oil refinery etc in and around the Kaziranga National park.  3 sampling sites were selected including 1 industrial(InT), 1 residential(TS) within the refinery 1 roadside(BP) within the kaziranga national park area.  At each site all 4 pollutants were monitored twice a week and eight times in a month using PM 2.5/10 sampler for particulates and High volume Sampler with gaseous attachment for SO2 and NO2 during the year June 2013 to May 2014. The values of all these pollutants (particulates and gaseous) are observed to be very much below according to National Ambient Air Quality Standards. However the area is mostly covered with forest reserve

SPATIAL VARIATION OF BENO-A-PYRENE, NICKEL AND LEAD CONFINED IN PM10 AS WELL MODELLING AND HEALTH RISK ASSESSMENT

Exposure to fine particulate matter from ambient air is a leading environmental contributor to disease burden across the world. Polycyclic aromatic hydrocarbons (PAHs) are the common environmental pollutants. PAHs are persistent organic pollutants and strive carcinogenic and mutagenic effects. Aerosol samples in the particulate phase were collected simultaneously for the first time in Numaligarh at an industrial and a traffic dominated site for two year to investigate the gas–particle partitioning of polycyclic aromatic hydrocarbon (PAH) and heavy metal. The samples were collected using a high volume sampler on PTFE filter papers. Benzo-a-pyrene was analyzed using gas chromatograph-mass spectrometry. The ground level concentration (GLC) of pollutants from stationary sources is computed    using   dispersion model AERMOD, which are mathematical relations between the source strength and concentration   and involves parameters related transport and diffusion. Increases in GLC (Ground Level Concentration) are very minimal. Maximum Predicted Summer Season 24 hour Average increase in GLC is 2.05 μgm-3 and that of winter is 1.58 μgm-3. Although PAH represented a high proportion of risk as carcinogenic whose Cancer Risk (CR) values were calculated (0.03 CR value), and they were very less than the permissible limit (CR 0.25). However, the risk of exposure to mixtures is difficult to estimate, and risk assessment by whole mixture potency evaluations has been done in this study. 

Evaluation of antidiabetic activity of Oxalis corniculata in streptozotocin induced diabetic rats

Background: Oxalis corniculata is traditionally well known for its versatile uses. The present study was carried out to evaluate the antidiabetic action of ethanolic extract of Oxalis corniculata in streptozotocin induced diabetic albino rats.Methods: To look for the antidiabetic effect the albino rats were divided into 5 groups, each consisting of 6 animals. Diabetes was induced by a single i.p. injection of streptozotocin at a dose of 50mg/kg body weight. Standard drug, glibenclamide and ethanolic extract of Oxalis corniculata (EEOC) at doses 200mg/kg and 400mg/kg body weight was fed to the rats and it was continued till the end of the study. The blood glucose levels were estimated on day 0, 3, 7, 14 and 21 day. The standard drug and the extract were fed from day 4 onwards.Results: The antidiabetic property of the extract has shown increasing trend with   increase in dose and there was a gradual decrease in blood glucose levels with increased period of exposure to the test drug.Conclusions: Results obtained in this study substantiate the anti-diabetic activity of EEOC leaves

Evaluation of the anti-nociceptive potential of ethanolic extract of leaves of Bryophyllum pinnatum in experimental animals

Background: The plant Bryophyllum pinnatum is traditionally used for the treatment of pain and inflammation. The present study was carried out to evaluate the antinociceptive effect of the ethanolic extract of the leaves of B. pinnatum (EEBP) using a hot plate method and acetic acid induced writhing test in mice.Methods: In the hot plate analgesiometer method, the time between the placement on the hot plate and the occurrence of licking of the paws, shaking or jumping off from the plate was recorded as response latency. Total numbers of stretching episodes for 30 mins immediately after acetic acid injection in all the groups were recorded in acetic acid induced writhing method. Pentazocine (10 mg/kg intraperitoneal) and aspirin (500 mg/kg) were used as the standard drugs in the hot plate and acetic acid induced writhing method, respectively. Extract was used in 200, 300 and 400 mg/kg doses.Results: At all the three doses the EEBP showed significant (p<0.01) anti-nociceptive activity in experimental models of Eddy’s hot plate analgesiometer and acetic acid induced writhing method in mice.Conclusion: The observed pharmacological activities provide the scientific basis to support traditional claims, as well as exploring some new and promising leads in the management of pain

Testable Design for Positive Control Flipping Faults in Reversible Circuits

Fast computational power is a major concern in every computing system. The advancement of the fabrication process in the present semiconductor technologies provides to accommodate millions of gates per chip and is also capable of reducing the size of the chips. Concurrently, the complex circuit design always leads to high power dissipation and increases the fault rates. Due to these difficulties, researchers explore the reversible logic circuit as an alternative way to implement the low-power circuit design. It is also widely applied in recent technology trends like quantum computing. Analyzing the correct functional behavior of these circuits is an essential requirement in the testing of the circuit. This paper presents a testable design for the k-CNOT based circuit capable of diagnosing the Positive Control Flipping Faults (PCFFs) in reversible circuits. The proposed work shows that generating a single test vector that applies to the constructed design circuit is sufficient for covering the PCFFs in the reversible circuit. Further, the parity-bit operations are augmented to the constructed testable circuit that produces the parity-test pattern to extract the faulty gate location of PCFFs. Various reversible benchmark circuits are used for evaluating the experimental results to establish the correctness of the proposed fault diagnosis technique. Also a comparative analysis is performed with the existing work

Evaluation of anti-inflammatory activity of Oxalis corniculata in experimentally induced inflammatory bowel disease in rats

Background: Oxalis corniculata is traditionally well-known for its versatile uses. The present study was carried out to evaluate the anti-inflammatory activity of the ethanolic extract of O. corniculata (EEOC) leaves in experimentally induced inflammatory bowel disease in rats.Methods: Rats were treated with the extract for 7 days following which acetic acid was used to induce colitis. Animals were euthanized, 24 hrs after induction of colitis and colon was removed and assessed for macroscopic injury, as well as also processed for histopathological examination. Sulfasalazine 360 mg/kg was used as the standard drug. The extract was used in 200 mg/kg, 300 mg/kg and 400 mg/kg doses.Results: At all the three doses, the EEOC showed significant (p<0.01) anti-inflammatory activity in experimental models.Conclusion: Results obtained in this study substantiate the anti-inflammatory effect of EEOCleaves