In this paper, an image Steganography algorithm based on text message concealment compression is presented. In this proposed method, at the same time, the level of security and capacity in Steganography color images has been increased. The structure of the proposed method consists of two parts: transmitter (lathe) and receiver (lathe). In Steganography, the number of bits of the message is first reduced and compressed as much as possible by converting the text message into binary information and using appropriate coding to increase the capacity of the information to be embedded in the host image. In order to improve the capacity to insert a hidden message, the host signal uses a binary tree search algorithm to compress and expand the text message before inserting and extracting it into the image, and at the same time generates cryptographic keys. In order to evaluate the performance of the proposed design, criteria such as Peak signal-to-noise ratio (PSNR), hiding ratio (HR)bit error rate (BER), similarity level of hidden and extracted messages (SIM) as well as algorithm execution speed, Used. By comparing the performance of the proposed algorithm with other proposed algorithms, it shows the optimal performance of the proposed design.

Background: The prevalence of metabolic syndrome (MetSyn) is increasing in Iran. This study was an attempt to determine the effects of a short message service (SMS)-based education intervention on knowledge, attitude, and the adoption of preventive behaviors concerning MetSyn among a sample of employees of Iran University of Medical Sciences (IUMS). Methods: In this randomized controlled trial, conducted from January through April 2021, 144 IUMS staff members were assigned either to the intervention group (n=72) or to the control group (n=72). Thirty-two text messages were designed, pretested, and sent to the participants’,phones in the intervention group in 32 days. Knowledge, attitude, and the adoption of preventive behaviors vis-à,-vis MetSyn were measured in the intervention group before and 1 month after the intervention and compared with those in the control group at the same time points. The data were analyzed using paired t tests and ANCOVA. Results: The mean age of the employees in the intervention and control groups was 42. 97±, 8. 80 and 40. 81±, 9. 58 years, respectively. The results showed that the mean scores of knowledge (P<0. 001), attitude (P<0. 001), and the adoption of preventive behaviors regarding MetSyn (P=0. 009) were significantly different between the intervention and control groups after the intervention was done via SMS. Conclusion: The results of the present study showed that SMS-based interventions might improve knowledge, attitude, and the adoption of preventive behaviors pertaining to MetSyn among employees.

Humans communicate with each other through words and convey the message to the audience, in principle, words are understood by customary meanings. In the case of non-compliance with this principle, communication will confront problems, simultaneously the convey of meanings will face difficulties, and understanding the objectives will not be simply possible. Whereas the legislature aims to adopt regulations to regulate social relations, it is expected that the legislature observes the minimal principles of literature not only for choosing the words but for the way of writing them. In this study, the descriptive-analytical method is used and this question is examined that to what extent the Electronic Commerce Law has succeeded in using words and observing the fundamental principles of literature. Despite the significance of the Law, it seems that the legislator has not been succeeded in applying the rules and principles of writing. In particular, the failure is evident in the section of definitions, since some words are selected which seem pleonasm, and some words are defined which in part have an obvious meaning. Due to the weakness in passing the concepts on, in some parts of the Law the basic principles of literature are not used properly.