117 research outputs found
Palm Print Recognition Using Curve let Transform
In the era of Information Technology, openness of the information is a major concern. As the confidentiality and integrity of the information is critically important, it has to be secured from unauthorized access. Traditional security and identification are not sufficient enough; people need to find a new authentic system based on behavioral & physiological characteristics of person which is called as Biometric. Palm print recognition gives several advantages over the other biometrics such as low resolution, low cost, non-intrusiveness and stable structure features. Now a days Palm print based personal verification system is used in many security application due to its ease of acquisition, high user acceptance and reliability. Various approaches which deal with palm recognition are texture approach, line approach and appearance approach. By using texture approach it is possible to obtain texture sample with low resolution and texture is much more stable as compare to line and appearance. This paper is aimed to analyze the performance of palm print recognition systems using Curvelet features and for dimension reduction PCA is used
Ethnomedicinal plants used in malaria in tribal areas of Odisha, India
The present paper deals with 38 ethnomedicinal plant species belonging to 37 genera and 24 families used for prevention and treatment of malaria by the tribal and indigenous non-tribal communities of Sundargarh, Mayurbhanj, Angul, Balangir, Deogarh and Nuapada districts of Odisha. This first-hand ethnomedicinal information for their therapeutic use against malaria was collected directly from a field survey of 404 remote tribal villages and forest areas of these 6 districts during 2006-2017. Additionally, uses of other 6 plants for the treatment of the same diseases were also recorded from the already published literature on these districts. These plant species are arranged in alphabetical order followed by family, habit, local name(s), locality(ies), field number(s) along with a method of preparation and mode of ethnomedicinal uses in detail
Review of Student Profile Management System Using QR Code
The QR code has gained a lot of popularity these days. With the rapid growth in information technology, the QR code has made their way in to the world. The quick response code is a two dimensional barcode as it is evolved from barcode. They come in various shapes and size. They are multidimensional and can also come in coloured form. The main purposed of the QR code is directing the user to a particular link. Since the use of mobile has increased, they have become very popular among the mobile users. Presently, smart phones come at much affordable prices because of which almost every person on the planet has a mobile phone which also includes the student population. This facilitates the QR code in the educational system. In this paper, we are suggesting a way of management of student?s record by creating a Student profile using his basic registration information. This profile can be simultaneously updated. The purpose of this system is to eliminate the gap between the student and the institutional management. This is not only an efficient profile management system but also reduces the problem of queue, wastage of time and reduction in paper consumption. This way, there is a smoother and systematic management at the student?s side as well as the administration side
Review of Solar Energy Measurement System
The aim of this proposed work is to measure solar cell parameters through multiple sensor data acquisition. In this project, a solar panel is used that keeps monitoring the sunlight. Here different parameters of the solar panel like light intensity, voltage, current and the temperature are monitored and are sent to a remote PC using a RF 2.4 GHz serial link. Microcontroller used here is from PIC16F8 family
Effect of nicotine on serotonin (5-HT) levels in brain of depressed rats
Background: Reduction in brain serotonin (5-HT) levels contributes to depression. Nicotine may have antidepressant properties and smokers self-medicate underlying depression. Epidemiological findings suggest that smokers more often demonstrate depressive symptoms than non-smokers and depressed patients are less likely to cease smoking. Therefore, the study was planned to evaluate the effect of nicotine on serotonin levels in brain of depressed rats.Methods: Antidepressant action of study drugs was evaluated using isolation induced hyperactivity model in rats. Rats were divided into five groups with six rats in each group. Study groups: Vehicle in normal rats 1 ml/kg (subcutaneous); vehicle after isolation 1ml/kg (subcutaneous); imipramine 10 mg/kg (intraperitoneal) for 7 consecutive days; single dose of nicotine 0.4 mg/kg (subcutaneous); single dose of nicotine 0.2 mg/kg (inhalational). Brain serotonin assay was carried out. The statistical significance was determined by ANOVA followed by Tukey test (p<0.05).Results: Serotonin levels (55.93ng/g of brain tissue) in rats after isolation were significantly less than in normal rats (335.87ng/g) (p<0.001). In imipramine treated group, serotonin levels (301.4ng/g) after isolation were highly significant as compared to serotonin levels in vehicle treated group after isolation (p<0.001). Nicotine administered by subcutaneous and inhalational route showed significantly higher brain serotonin levels, i.e. 175ng/g and 254.62ng/g respectively as compared to vehicle treated rats after isolation (p<0.001).Conclusions: Single dose nicotine (inhalational) produced significant antidepressant action comparable to that of seven days’ treatment of standard antidepressant drug imipramine in rats. In rats, nicotine by both routes i.e. subcutaneous and inhalational increased serotonergic activity
Thermoluminescence studies of CaSO4: Eu nanophosphor for electron dosimetry
Sample of CaSO4: Eu nanophosphor has been synthesized by chemical co-precipitation method and irradiated with 6.5 MeV electrons over the fluence range from 5×1014 to 4×1015 e/cm2. The as-synthesized sample has been characterized by the XRD and TEM. The TEM image reveals that the nanocrystallites are in the form of nanorods of length 75 to 125 nm, with varying diameter of 10 to 20 nm. The XRD yields an average grain size ~15 nm, with hexagonal structure. The electron irradiated samples exhibit the thermoluminescence glow curve with a single peak at 162 °C. Moreover, the TL peak intensity increases with the increase in electron fluence and saturates beyond 3×1015 e/cm2. Moreover, TL glow curves have been theoretically fitted using computerized glow curve deconvolution (CGCD) method to determine trapping parameters. The results indicate that CaSO4: Eu can be used as a dosimeter for 6.5 MeV electrons over dose range from 15-80 kGy
Low Energy X-ray Photons Induced Changes in Lexan Films
40 keV Synchrotron X-ray photons were made to fall on Lexan polycarbonate films at different exposure time. The low energy X-ray photons assisted modification in terms of physico-chemical properties of Lexan films were studied using Fourier Transform Infrared (FTIR) spectrophotometer, X-Ray Diffractogram (XRD), Vicker’s Microhardness Tester,Scanning Electron Microscope (SEM) and Contact Angle Meter. FTIR result mainly includes decrease in the C=C stretching and C-C stretching of aromatics after irradiation. XRD analysis shows a slight decrease in the crystallinity after irradiation. Vicker’s microhardness test reveals the decrement in microhardness of Lexan films after irradiation. SEM result shows irradiation induced changes in the surface morphology. Contact angle measurement shows increase in the water contact angle in irradiated Lexan films
Low Energy X-ray Photons Induced Changes in Lexan Films
706-71040 keV Synchrotron X-ray photons were made to fall on Lexan polycarbonate films at different exposure time. The low
energy X-ray photons assisted modification in terms of physico-chemical properties of Lexan films were studied using
Fourier Transform Infrared (FTIR) spectrophotometer, X-Ray Diffractogram (XRD), Vicker’s Microhardness Tester,
Scanning Electron Microscope (SEM) and Contact Angle Meter. FTIR result mainly includes decrease in the
C=C stretching and C-C stretching of aromatics after irradiation. XRD analysis shows a slight decrease in the crystallinity
after irradiation. Vicker’s microhardness test reveals the decrement in microhardness of Lexan films after irradiation. SEM
result shows irradiation induced changes in the surface morphology. Contact angle measurement shows increase in the water
contact angle in irradiated Lexan films
Identifying sources, pathways and risk drivers in ecosystems of Japanese Encephalitis in an epidemic-prone north Indian district
Japanese Encephalitis (JE) has caused repeated outbreaks in endemic pockets of India. This study was conducted in Kushinagar, a highly endemic district, to understand the human-animal-ecosystem interactions, and the drivers that influence disease transmission. Utilizing the ecosystems approach, a cross-sectional, descriptive study, employing mixed methods design was employed. Four villages (two with pig-rearing and two without) were randomly selected from a high, a medium and a low burden (based on case counts) block of Kushinagar. Children, pigs and vectors were sampled from these villages. A qualitative arm was incorporated to explain the findings from the quantitative surveys. All human serum samples were screened for JE-specific IgM using MAC ELISA and negative samples for JE RNA by rRT-PCR in peripheral blood mononuclear cells. In pigs, IgG ELISA and rRT-PCR for viral RNA were used. Of the 242 children tested, 24 tested positive by either rRT-PCR or MAC ELISA; in pigs, 38 out of the 51 pigs were positive. Of the known vectors, Culex vishnui was most commonly isolated across all biotopes. Analysis of 15 blood meals revealed human blood in 10 samples. Univariable analysis showed that gender, religion, lack of indoor residual spraying of insecticides in the past year, indoor vector density (all species), and not being vaccinated against JE in children were significantly associated with JE positivity. In multivariate analysis, only male gender remained as a significant risk factor. Based on previous estimates of symptomatic: asymptomatic cases of JE, we estimate that there should have been 618 cases from Kushinagar, although only 139 were reported. Vaccination of children and vector control measures emerged as major control activities; they had very poor coverage in the studied villages. In addition, lack of awareness about the cause of JE, lack of faith in the conventional medical healthcare system and multiple referral levels causing delay in diagnosis and treatment emerged as factors likely to result in adverse clinical outcomes
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