The Southern Wide-field Gamma-ray Observatory (SWGO) project aims to build an array of air-shower detectors in the Southern hemisphere. Intensive site search activities are ongoing. We developed an Autonomous Environmental and Scientific SWGO Site Characterization Instrument (AEROSITE) to measure environmental characteristics of the proposed sites and deployed four of them in Argentina, Bolivia, Chile and Peru. The instruments are located at very high altitudes of more than 4500 m.a.s.l. We completed an intensive cross-calibration campaign to validate the performance and sensitivity of all AEROSITEs in 2020 and installed the instruments at the sites between October 2021 and April 2022. The instruments are gathering important data without any major issues. At some candidate sites, non-SWGO environmental monitoring systems are also available. In this case, the AEROSITE serves as a cross-calibration instrument to allow a possible extension of the data points to the past using the available data sources. On the other hand, the AEROSITE data are important for designing the SWGO detectors using the real conditions at the sites such as temperatures, wind, electric field and seismic activity.
With the development of sensor technology and wireless communication technology, edge computing has a wider range of applications. The privacy protection of edge computing is of great significance. In the edge computing system, in order to ensure the credibility of the source of terminal data, mobile edge computing (MEC) needs to verify the signature of the terminal node on the data. During the signature process, the computing power of edge devices such as wireless terminals can easily become the bottleneck of system performance. Therefore, it is very necessary to improve efficiency through computational offloading. Therefore, this paper proposes an identitybased edge computing anonymous authentication protocol. The protocol realizes mutual authentication and obtains a shared key by encrypting the mutual information. The encryption algorithm is implemented through a thresholded identity-based proxy ring signature. When a large number of terminals offload computing, MEC can set the priority of offloading tasks according to the user's identity and permissions, thereby improving offloading efficiency. Security analysis shows that the scheme can guarantee the anonymity and unforgeability of signatures. The probability of a malicious node forging a signature is equivalent to cracking the discrete logarithm puzzle. According to the efficiency analysis, in the case of MEC offloading, the computational complexity is significantly reduced, the computing power of edge devices is liberated, and the signature efficiency is improved.
In the developing countries, Immuno Chromatographic Techniques (ICT) are used instead of ELISA which may give false positive and false negative results. But ELISA technique has more than 99% accuracy, sensitivity and specificity regarding the diagnosis of Hepatitis C Virus. A cross sectional study on 200 patients is the part of this study to check sensitivity of ELISA for HCV as well as to compare the sensitivity of ELISA and ICT method for HCV. For investigation of Pakistani patients using these techniques, 50 samples of control group (25 samples of negative control and 25 of positive control) and 150 samples of patients (suspected for HCV) were collected. Their HCV tests were first performed by using ICT kits. Then these samples were tested for anti-HCV antibody through ELISA by fully automated Instrument and their cut off values was determined. Results obtained by ELISA were compared by the results obtained by testing through ICT method. Results revealed that twenty-five patients suffering from hepatitis C were detected by both ELISA and ICT (positive control). Similarly, ELISA and ICT showed the negative results for all twenty-five negative control patients. Both ELISA and ICT showed the same results regarding detection of hepatitis C except two patients in experimental group. ICT showed positive result of a patient who was healthy and also confirmed negative by ELISA technique. Also this patient did not show any sign and symptom of hepatitis C. Further, ICT showed negative result of hepatitis C infected patient who has the sign and symptoms of hepatitis C and also ELISA showed positive result regarding detection of hepatitis C. It can be concluded from this experiment that both ELISA and ICT can be used for the detection of hepatitis C. However, the sensitivity of ELISA is higher as compared to ICT. Therefore, it can be recommended that ELISA is more appropriate method for the detection of hepatitis C.
Purpose of the study: To examine the satisfaction of the health status of RTI victims and to measure the association between the satisfaction of health status with the prevailing level of participation of RTI victims in various major life activities. Methodology: This study follows a cross-sectional research design. A comprehensive interview schedule was designed and pre-tested before the actual process of data collection. For data analysis, SPSS v.20 was run for obtaining univariate, bivariate, and multivariate analysis. Main Findings: At a bivariate level, it was found that RTI victims were having difficulty in walking, standing, sitting, and dysfunctional memory status had significantly associated with low health satisfaction. Furthermore, at the multivariate level, the victims with low educational status were more likely to report limitations in Major Life Activities (MLA), ultimately affecting their health satisfaction status. Applications of this study: This research's findings can apply to such studies that emphasize the sociological perspectives for minimizing traffic crashes. Moreover, it also provides the role of education in controlling traffic injuries in the south Asian region. Novelty/Originality of this study: This study is the first-ever attempt to determine the effects of MLA limitations on the health satisfaction status. Apart from describing the phenomenon from a sociological perspective, the article also enlightens the role of education in minimizing RTI injuries.
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