A Review of Range-based RSSI Algorithms for Indoor Wireless Sensor Network Localization

The secure localisation of unknown nodes in Wireless Sensor Networks (WSNs) is a crucial research topic due to the vast range of applications of WSNs. These applications drive the development of WSNs, as real-world obstacles typically motivate them. WSN technology is rapidly evolving, and this paper provides a brief overview of WSNs, including key research findings on energy conservation and node deployment. The paper discusses the applications of WSNs in medical health, environment and agriculture, intelligent home furnishing and construction, and military, space, and marine exploration. The paper focuses on the research of RSS-based locating algorithms in WSNs and is divided into two sections. Firstly, accurate location depends on the accurate RSSI received from nodes. This experiment analyses the distribution trend of RSSI and derives the loss model of signal propagation by processing experimental data. Secondly, Gaussian fitting calculates the distance between receiving and sending nodes by processing individual RSSI at different distances. The primary challenge in studying this RSSI range-based technique is the low positioning accuracy, low energy, and high error rate. To solve this problem, a recommended GA is used to find the optimal site by minimising error, providing the best feasible solution, and being energy-sensitive, with accuracy based on the least error inside the network. The proposed approach aims to optimise sensor placements for improved performance

Development and Study CaO-B2O3-P2O5 Glass System

Glasses in the system 20wt%boric oxide and 80wt % [CaO-P2O5] have been prepared by rapid quenching technic from the melts at high temperature. Ca/P molar ratios have been varied 1.65, 1.67 and 1.69. The amorphous nature of glass powder was confirmed by XRD analysis. Thermal and crystallization behavior were carried out by DSC analysis. The Sintering behavior and mechanical properties were investigated by dilatometry and biaxial flexural and diametral strength testing methods. The bioactivity of glass powder and glass scaffold were investigated after immersion in the simulated body fluid (SBF) for 1, 7, 14 &21 at 37.80c. Microstructural study has been analyzed using field emission scanning electron microscopy (FESEM). X-ray diffraction patterns clearly showed the deposition of Calium phosphate which is amorphous in natur

India’s AIDS response: the missing voices of persons with disabilities

India has the third largest number of people living with HIV in the world. The UNAIDS Gap report has identified twelve risk groups that are especially vulnerable and have been left behind from the national AIDS response. Of these twelve, one is persons with disabilities. Disability is both a public health issue and a human rights issue; persons with disabilities are the world’s largest minority. Low awareness, sexual abuse, and lack of access to health services are the major reasons for people with disabilities being vulnerable. While the gap report is a landmark report, in that it compartmentalizes the risk groups, disability cannot be looked at in isolation. Since any of the other risk groups may include persons with disabilities, the issue is a complex one meriting greater attention. The National AIDS Control Organization has completely ignored this group of persons. To efficiently close the gap, an integrated and disability-inclusive HIV response is needed so that people with different types of disabilities, their caretakers, healthcare professionals and society are empowered to fight the collective battle against HIV/AIDS

Senior Resident Training on Educational Principles (STEP): A Proposed Innovative Step from a Developing Nation

Resident-as-teacher courses are pretty common in Western medical schools however they are a rarity in Asian and developing countries. The current report is a scholarly analysis of a three day orientation program for senior residents in order to improve their functioning by providing new template either for supplementing basic workshops for faculty or to advocate a change in system. The experience gained by Medical Education Unit of University College of Medical Sciences can be used to conduct training breeding grounds at national or regional levels. Resident as teachers educational interventions need to be designed taking into account their impact on education system