AN ENERGY EFFICIENT DEACTIVATION TECHNIQUE FOR REACTIVE JAMMERS IN WIRELESS SENSOR NETWORKS

In recent days, reactive jamming attack has emerged as a great security threat to wireless sensor network [WSN]. Several strategies are developed to identify the trigger nodes, whose legitimate transmission activates any reactive jammer. After identifying the trigger node, the node will be shut down to deactivate the jammer and its routing information is deleted from the routing table, then the node can’t be used again in the network. Since the node can’t be used again in the network it is one of the major drawbacks. Hence to overcome the problem, In this paper we propose a novel approach, where the identified trigger nodes are put in to the scanning mode, so that we can reuse the trigger nodes, after deactivating the jammer node in the network

A Survey on IOT based Real Time, Smart Adaptive Street Lighting System with Pollution Monitoring for Smart Cities

The Internet of Things (IoT) is a new interconnection of technology. It is being heralded as the next industrial revolution. It’s also praised for its ability to reduce waste and energy, by allowing us to better control our use of resources based on our actual needs. Currently, energy consumed by the street lights in metropolitan cities is extremely high and hence are less efficient. One of the major problems with the existing street lighting system is that all the street lights are controlled manually and therefore require huge manpower. Even if a street light stops working there is no way by which the authorities can know about the failure. Another growing concern in cities is the pollution. The purpose of this paper is to propose a solution which can be adopted in every city where all the street lights are connected to the central server via internet which can be monitored remotely and thus making it an energy efficient system. These street lights are adaptive meaning that they can change the intensity of light depending on the vehicular movement. They also send information about the pollution level in that locality. Thus IoT promises huge improvements in street lighting system

Novel strategies to fight Candida species infection

In recent years, there has been a significant increase in the incidence of human fungal infections. The increase in cases of infection caused by Candida species, and the consequent excessive use of antimicrobials, has favored the emergence of resistance to conventional antifungal agents over the past decades. Consequently, Candida infections morbidity and mortality are also increasing. Therefore, new approaches are needed to improve the outcome of patients suffering from Candida infections, because it seems unlikely that the established standard treatments will drastically lower the morbidity of mucocutaneous Candida infections and the high mortality associated with invasive candidiasis. This review aims to present the last advances in the traditional antifungal therapy, and present an overview of novel strategies that are being explored for the treatment of Candida infections, with a special focus on combined antifungal agents, antifungal therapies with alternative compounds (plant extracts and essential oils), adjuvant immunotherapy, photodynamic therapy and laser therapy.Consolidating Research Expertise and Resources on Cellular and Molecular Biotechnology at CEB/IBB’’, Ref. FCOMP-01-0124-FEDER-027462BioHealth – Biotechnology and Bioengineering approaches to improve health quality’’, Ref. NORTE-07-0124-FEDER-000027 co-funded by the Programa Operacional Regional do Norte (ON.2 – O Novo Norte), QREN, FEDER

Comparative antibacterial effectiveness of alcohol and herbal based commercially available hand antiseptics

Background: Human skin is a reservoir of numerous microorganisms. Even though hand washing with soap and water alone reduces the microbial load, the complementary uses of hand antiseptics enhance the antimicrobial effect. Aim: To compare the antimicrobial effectiveness of two commercially available hand antiseptics, routinely used in dental practice, after hand washing with antiseptic soap. Method: A clinical trial with cross over design was carried out on 12 health care workers (HCWs). The antibacterial effectiveness of two hand antiseptics (Alcohol based -Sterillium and Herbal Based-Himalaya′s ′Pure Hands′) compared using fingerprint contact sampling on blood agar. Bacterial samples were obtained before and after hand washing (with antiseptic soap) and after hand disinfection. The data was tabulated and analyzed using one way ANOVA and Tukey′s post hoc test for pair-wise comparison. Result: There was a slight decrease in the Colony forming units (CFUs) count following use of antiseptic soap when compared to the baseline values. A statistically significant reduction (p<0.000) in the CFUs count was seen following use of both hand antiseptics but the mean number of CFUs reduction was more in case of alcohol based hand antiseptic(sterillium) than herbal based hand antiseptic(Himalaya′s ′PureHands"). Conclusion: Using alcohol based antiseptic soap before hygienic hand disinfection will provide maximum benefit in reducing the microbial count