introduction: children’s iron deficiency anemia is the most common nutritional problem; it plays an important role in reducing the child’s scientific and practical abilities. this study aims at reviewing the prevalence of iron deficiency anemia in 1 to 6 year old children referring to the city health care centers in jahrom. material and methods: this is a descriptive-analytical and cross-sectio...

Information on the knowledge, uses, and abundance of natural resources in local communities can provide insight on conservation status and conservation strategies in these locations. The aim of this research was to evaluate the uses, knowledge and conservation status of plants in two Quilombolas (descendants of slaves of African origin) communities in the Atlantic rainforest of Brazil, São Seba...

The innovative HB protocol of Juels and Weis [10] extends device authentication to low-cost RFID tags. However, despite the very simple on-tag computation there remain some practical problems with HB and despite an elegant proof of security against some limited active attacks, there is a simple man-in-the-middle attack due to Gilbert et al. [8]. In this paper we consider improvements to HB in t...

In this paper, we propose an enhanced version of the HB-MP authentication protocol, called the HB-MP protocol. The HB-MP protocol is a lightweight authentication protocol that is suitable for use in passive radio frequency identification (RFID) systems. The HB-MP protocol overcomes the man-in-the-middle attack to which the basic HB-MP protocol is vulnerable while maintaining its suitability to ...

With increased use of passive RFID tags, the need for secure lightweight identification protocols arose. HB+ is one such protocol, which was proven secure in the detection-based model, but shown breakable by man-in-the-middle attacks. Trusted-HB is a variant of HB+, specifically designed to resist man-in-the-middle attacks. In this paper, we discuss several weaknesses of Trusted-HB, show that t...

We propose a light-weight protocol for authentication of low-power devices. Our construc-tion PUF-HB merges the positive qualities of two families of authentication functions. PUFrepresents physically unclonable functions and fulfills the purpose of providing low-cost tamper-resilient challenge-response authentication. On the other hand, the Hopper Blum (HB) functionprovides...