Web Application and Penetration Testing

In the present scenario, the usage of internet is enormous and is escalating day by day. Internet facilities are employed in almost every field of work and people are becoming depending on it, with the increasing dependency on the internet, concern regarding information security has been increased. Because most of the work, e-commerce, chatting, payment of the bill, etc. are work through over the internet. That is why security is most important for any web site. Basically, such security concern is high in the field of organizations, institutions, and the financial sector. This paper aims to address the top most vulnerability concerns and how to overcome them. This paper addresses most of the popular vulnerabilities, which are amongst the top 10 according to OWASP and addresses the precautions to be taken to deal with these vulnerabilities. This paper provides a better understanding in a simple and easy way. When the entire world is behind new technologies and everything is moving towards the internet, the need for security increases. One has to be sure about the security of their website as well as the security and privacy of the end users. So, when the world is demanding for new technologies there will be an increase in demand for security testing. Every application or website is considered good only when it is secure and it can only be done by a web tester. This paper explores the vulnerabilities in a precise manner

Assessment of heavy metal contamination in Kali river, Uttar Pradesh, India

The River Kali is an important surface water body in the western Uttar Pradesh (U.P). It is an intermittent river which flows throughout the monsoonal months. The present study aims to assess the heavy metal contamination in the river Kali using pollution index (PI), based on five heavy metals (Fe, Zn, Cd, Pb, and Cr) during pre and post monsoon seasons in the year 2014. The PI evaluated during pre and post monsoon seasons with respect to drinking water quality standards was found as 5.04 and 7.08 respectively, while related to inland water quality standards were found as 4.37 and 3.62, respectively. The results indicate that the river Kali was severely contaminated (PI>3) in both seasons. Therefore, water of Kali River is not fit for drinking as well as for agriculture purposes

Investigation of the stellar content in the western part of the Carina nebula

We obtained deep $UBVRI$ H$\alpha$ photometric data of the field situated to the west of the main Carina nebula and centered on WR~22. Medium-resolution optical spectroscopy of a subsample of X-ray selected objects along with archival data sets from $Chandra$, $XMM-Newton$ and 2MASS surveys were used for the present study. Different sets of color-color and color-magnitude diagrams are used to determine reddening for the region and to identify young stellar objects (YSOs) and estimate their age and mass. Our spectroscopic results indicate that the majority of the X-ray sources are late spectral type stars. The region shows a large amount of differential reddening with minimum and maximum values of $E(B-V)$ as 0.25 and 1.1 mag, respectively. Our analysis reveals that the total-to-selective absorption ratio $R \rm_{V}$ is $\sim$3.7 $\pm$ 0.1, suggesting an abnormal grain size in the observed region. We identified 467 YSOs and studied their characteristics. The ages and masses of the 241 optically identified YSOs range from $\sim$0.1 to 10 Myr and $\sim$0.3 to 4.8M$_\odot$, respectively. However, the majority of them are younger than 1 Myr and have masses below 2 M$_\odot$. The high mass star WR 22 does not seem to have contributed to the formation of YSOs in the CrW region. The initial mass function slope, $\Gamma$, in this region is found to be -1.13 $\pm$ 0.20 in the mass range of 0.5 < M/M$_\odot$ < 4.8. The $K$-band luminosity function slope ($\alpha$) is also estimated as 0.31 $\pm$ 0.01. We also performed minimum spanning tree analysis of the YSOs in this region, which reveals that there are at least ten YSO cores associated with the molecular cloud, and that leads to an average core radius of 0.43 pc and a median branch length of 0.28 pc.Comment: 23 pages, 19 figures, 4 tables, Accepted for publication in Astronomy & Astrophysics [A&A]. arXiv admin note: text overlap with arXiv:0906.0201, arXiv:1211.2995, arXiv:1103.3396 by other author

Management of Late Blight of Potato

Potato (Solanum tuberosum L.) is the most important crop and Phytophthora infestans (Mont.) de Bary is the oomycete, which was responsible for infamous Irish potato famine during 1843–45 and it continues to cause worldwide devastation of the potato. Moreover, this disease is re-emerging in the forms of different genotypes and causes huge yield loss in the potato crop. The factors which are responsible for huge yield loss of potato are applied improper management strategies and pathogen behavior. Management strategies includes; forecasting, cultural, biological, varietal and chemical management. Forecasting is the better option for management of late blight, if accurately forecasted and promptly information reaches to the end users. As infected potato tubers cause the primary sources of infection in next season. The cultural practices will also helpful in reducing inoculum load and managing the disease. The host resistance is best option for management of this disease. However, due to very divers’ virulence nature of P. infestans; the resistance of the varieties is wiped out within a decade. Several fungicides including contact, systemic and translaminar have been evaluated from time to time; however, the pathogen has shown a remarkable capacity for change with respect to host genotype and fungicides. Nowadays biological control is gaining importance due to its eco-friendly in nature

Flap and finger-tip blood glucose level monitoring to predict venous thrombosis in free flaps: a simple and effective method

Background: Rapid detection and early re-exploration is the key to salvage congested flap. Various methods have been described in literature to monitor flaps in post operative period. We evaluate the efficacy of measurement of flap and fingertip blood glucose level and its role in predicting the flap congestion and salvage. Methods: prospective observational study conducted in a tertiary care centre in North India between December 2020 to December 2022. A total of patients 500 underwent 507 free tissue transfer were included in this study. Flap congestion was noted clinically in 41 flaps. In these 41 flaps, flap and fingertip blood glucose level were measured. Results: Congested appearing flaps divided into 2 groups. Group A consist of 8 flaps out of 41. The difference in flap and fingertip blood glucose level is less than 10%. Out of 8, 5 does not required re-exploration and were successfully salvaged. In 3 flaps, difference in flap and fingertip glucose level rises with time and were taken for re-exploration. Out of these 3, 2 were successful salvaged. Group B consist of 31 flaps. In these 31 flaps, 41. the difference in flap and fingertip blood glucose level is more than 10%. All these flaps were re-explored and 21 were salvaged. Conclusions: Flap and body glucose level monitoring is a simple and reliable method for flap monitoring and it can be performed by residents as well as nursing staff