Despite being completely unknown for more than a decade, cryptocurrencies are now a trillion dollar worldwide industry with more than 4,000 different currencies available. Additionally, the decentralized nature of digital currencies has elevated the sector to a level where privacy and safe transactions are taken for granted. Market analysis, however, indicates that there are numerous security flaws that could jeopardize the genuine anonymity of the bitcoin transaction network. In this post, we examine a few network security flaws that affect cryptocurrency systems. Manuscript profile

the purpose of this research was the effect of physical fitness exercises on dynamic balance and static balance in hearing impaired girls aged 13 to 15 years with vestibular system dysfunction in Mashhad. The research method was semi-experimental with a pre-test and post-test design with a control group. The statistical population of this research included all hearing-impaired girls with bilateral vestibular problems aged 13 to 15 in Mashhad. The statistical sample was selected in a targeted manner and randomly selected in two experimental and control groups (12 people in each group). The experimental group participated in a physical fitness program for 8 weeks, 3 sessions per week and 60 minutes per session. The control group only did daily and normal activities. Balance tests were taken from the participants before and after the training period. The statistical method of independent t-test was used using spss21 software to compare between two groups. The results showed that physical fitness exercises increased both static balance and dynamic balance in 13 to 15-year-old hearing-impaired girls with vestibular dysfunction (P<0.05). This indicates that hearing impaired children can improve their balance by participating in a physical fitness training program that includes 8 weeks and 3 sessions per week for 60 minutes. Manuscript profile

the purpose of this research was to compare personal, social, and sports identity in deaf sportsmen and non- athletes in Mashhad. The research was done based on the analytical descriptive method. The statistical population included deaf women who were members of the Mashhad Center for the Deaf and were residents of Mashhad. Based on the simple random sampling method and using the Krejcie and Morgan table, 359 people (952 deaf athletes and 247 deaf non-athletes) were selected as a statistical sample. Standard questionnaires of sports identity (Borour, 1993), social identity (Safariniya, 2011) and personal identity (Adamz, 1986) were used to collect data. The reliability of the tool was calculated using Cronbach's alpha and was 0.83, 0.74 and 0.81 respectively. Independent t-tests and one-sample t-tests were used to analyze the data. There was a significant difference between deaf athletes and non-athletes based on individual identity, sports identity and social identity (P<0.05). Individual identity was at a suitable level in deaf female athletes, but not at a suitable level in deaf non-athlete women (P<0.05). Sports identity was at a suitable level in deaf sportswomen, but not at a suitable level in deaf non-athletes (P<0.05). Social identity was at an appropriate level in deaf sportswomen, but not at an appropriate level in deaf non-athletes (P<0.05). It seems that engaging in sports in deaf women improves their individual identity, social identity and sports identity. Manuscript profile

the aim of the current research was the effect of a simple pyramid resistance training session with BCAA supplementation on IGF-1 levels during different periods of time in postmenopausal women. The current research was semi-experimental and applied. A total of 19 inactive postmenopausal women were selected. At first, the subjects were given the necessary information about the objectives and method of conducting the research, and each subject completed the consent form, physical activity and medical-sports readiness questionnaire. Then the subjects were randomly divided into two groups of simple + supplement pyramid resistance training (10 people) (age 52.20 ± 5.70 years, height 1.57 ± 0.01 cm and weight 88.76 ± 14.81 kg), Simple pyramid resistance training group + placebo (9 people) (age 50.89±4.25 years, height 1.60±0.01 cm and average weight 88.76±7.41 kg) were divided. The resistance training program was a pyramid with an intensity of 70-80% of one repetition maximum. The simple pyramid resistance training group + supplement consumed 0.1 gram per kilogram of body weight of BCAA powder in solution. Serum IGF-1 levels were measured before, 30 and 120 minutes after exercise. Two-way repeated measures statistical test was used to analyze the data. The findings showed that a simple pyramid resistance training session with BCAA supplementation has no effect on IGF-1 serum levels at different training times of postmenopausal women. Also, the difference between the groups in the level of IGF-1 after exercise was not significant. Probably, a simple pyramid resistance training session with and without BCAA supplementation at the rate of 0.1 gram per kilogram of body weight before and after training has no effect on the initial increase of IGF-1. Manuscript profile

the purpose of this study was to compare the effect of two types of recovery (massage and running in cold water) on creatine kinase (CK) and C-reactive protein (CRP) of soccer players following a simulated soccer activity. 14 youth male soccer players were purposefully selected and randomly placed in two groups of recovery of massage and recovery of running in cold water (7 people in each group). On the day of the sports test, at 10:00 AM, all the subjects participated in a simulated soccer physical activity session with the difference that the massage group recovered by massage after the activity; And the cold water running group recovered after the activity by running in cold water. Immediately after the activity, after recovery, 24 hours later and 48 hours after the activity, blood samples were taken from all subjects. The serum levels of CK and CRP first increased and then began to decrease, and these changes were significant (P<0.05), but the difference between the two groups was not significant (P>0.05). Probably, recovery in water or in the form of massage leads to the reduction of inflammation in young football players after a simulated football activity, but there is no difference between the two types of recovery. Manuscript profile

the aim of this study was to investigate the effect of nonlinear resistance training with dill extract on adropine and its relationship with insulin resistance in type 2 diabetic patients. 32 patients with type 2 diabetes were divided into four groups: resistance training, supplementation, resistance training + supplementation, and placebo. Interventions were performed for 12 weeks. Consumption of dill included 300 mg / kg body weight per day. Nonlinear resistance training, consumption and their combination significantly reduced blood sugar and insulin resistance and significantly increased adropine levels (P <0.05). These changes were significantly greater in the exercise and dill combination groups. The relationship between adropine changes and insulin resistance was also significant and negative (P <0.05). Adropine may play a role in reducing insulin resistance following nonlinear resistance training. Consumption can increase the effects of exercise. Manuscript profile

the aim of this study was to compare the effect of aerobic and nonlinear resistance training on inflammatory factors and its relationship with pain and function in overweight women with osteoarthritis of the knee. 21 women aged 50 to 60 years with knee osteoarthritis were randomly divided into three groups of aerobic exercise, nonlinear resistance training and control (7 people in each group). Exercises were performed for12 weeks (3 sessions per week). Before and after the training period, the subjects were measured for pain and motor function and blood samples were taken from three groups after the 12-hour fasting period and levels of CRP and TNF-α were measured for each sample. Both types of exercises significantly reduced weight, BMI, pain and TNF-α and CRP levels and significantly improved motor function in women with osteoarthritis of the knee (P<0.05), but no significant difference was observed between the two types of exercise (P>0.05). Also, with decreasing inflammation, pain decreased and motor function increased (P<0.05). Training with weight loss and inflammatory factors in overweight women with osteoarthritis of the knee can reduce pain and improve motor function in these women. There is probably no significant difference between the effect of aerobic and nonlinear resistance training in this area. Manuscript profile

the aim of the present study was to evaluate the effect of eight weeks of ketogenic diet combined with resistance training on serum adropine levels and insulin resistance in overweight women. 40 women aged 30 to 40 years in Mashhad with a body mass index of more than 25 but less than 30 were purposefully selected and participated in this study voluntarily. After selecting the subjects, they were randomly divided into four groups: resistance training, ketogenic diet, resistance training + ketogenic diet and control (10 people in each group). Interventions were applied for four weeks. The results showed that only the effect of diet on weight loss, BMI, WHR, fat percentage and body fat mass was significant (P <0.05) but the effect of exercise and the interactive effect of exercise and diet were not significant (P> 0.05). Also, the results showed that the effect of exercise and the interactive effect of exercise and diet on reducing glucose, insulin and insulin resistance were significant (P <0.05) but the effect of diet was not significant (P> 0.05). Finally, the results showed that the effect of exercise and the interactive effect of exercise and diet on increasing adropin was significant (P <0.05) but the effect of diet was not significant (P> 0.05). A four-week ketogenic diet will probably improve the body composition of overweight women. Meanwhile, resistance training without changing weight and body fat seems to increase adropine and improve insulin resistance. Manuscript profile

the aim of this study was to evaluate the effect of 12 weeks of aerobic training and saffron supplementation on cognitive status and serum levels of IL-1β and TNF-α in elderly men. Forty men aged 60 to 70 years were purposefully selected and randomly divided into 4 groups: aerobic training, saffron, aerobic training + saffron and placebo (10 people in each group). Interventions were performed for 12 weeks. Aerobictraining consisted of eight minutes of running with an intensity of 75 to 85% of the maximum reserve heart rate in the first session. Both sessions increased the running time by one minute until after 12 weeks, the running time reached 26 minutes. Saffron extract was taken as a capsule with a dose of 500 mg in two meals in the morning and after exercise. IL-1β and TNF-α levels were significantly reduced in both training and saffron groups, but in the training + saffron group, their decrease was greater (P<0.05). Cognitive status in the three intervention groups increased significantly compared to the placebo group, which was higher in the exercise + saffron group (P<0.05). It is possible that taking saffron supplement along with aerobic training for 12 weeks, by improving the cognitive status in older men by reducing inflammatory factors, can prevent cognitive disorders and eventually Alzheimer's. Manuscript profile

Traditionally, security and usability has acted against each other. Specially, for inexpert people, usability means ignoring security and secure systems are not usable. Researchers and developers recognized that current security problems would be solved only through addressing issues raised through usability and human factor. In fact, future of cyber security relies on deployment of security technologies which widely could be used by inexpert users. Interpretative Key Management (IKM) is a cryptographic key management system under category of master key which empowers users to generate the cryptographic keys within the end-user systems. This article proposes a novel method which specifically helps beginners to achieve both safety and usability of communications and network-based software by utilizing IKM. In this method processes of user authentication and encryption of transmitted and stored data will be fully automated and does not require the users to do any security configuration. The main targeted application of proposed method is to enhance security and usability of e-learning systems when the trainees do not have enough computer knowledge. Manuscript profile

Despite being completely unknown for more than a decade, cryptocurrencies are now a trillion dollar worldwide industry with more than 4,000 different currencies available. Additionally, the decentralized nature of digital currencies has elevated the sector to a level where privacy and safe transactions are taken for granted. Market analysis, however, indicates that there are numerous security flaws that could jeopardize the genuine anonymity of the bitcoin transaction network. In this post, we examine a few network security flaws that affect cryptocurrency systems. Manuscript profile

the purpose of this study was to compare the effect of two types of recovery (massage and running in cold water) on creatine kinase (CK) and C-reactive protein (CRP) of soccer players following a simulated soccer activity. 14 youth male soccer players were purposefully selected and randomly placed in two groups of recovery of massage and recovery of running in cold water (7 people in each group). On the day of the sports test, at 10:00 AM, all the subjects participated in a simulated soccer physical activity session with the difference that the massage group recovered by massage after the activity; And the cold water running group recovered after the activity by running in cold water. Immediately after the activity, after recovery, 24 hours later and 48 hours after the activity, blood samples were taken from all subjects. The serum levels of CK and CRP first increased and then began to decrease, and these changes were significant (P<0.05), but the difference between the two groups was not significant (P>0.05). Probably, recovery in water or in the form of massage leads to the reduction of inflammation in young football players after a simulated football activity, but there is no difference between the two types of recovery. Manuscript profile

the aim of the current research was the effect of a simple pyramid resistance training session with BCAA supplementation on IGF-1 levels during different periods of time in postmenopausal women. The current research was semi-experimental and applied. A total of 19 inactive postmenopausal women were selected. At first, the subjects were given the necessary information about the objectives and method of conducting the research, and each subject completed the consent form, physical activity and medical-sports readiness questionnaire. Then the subjects were randomly divided into two groups of simple + supplement pyramid resistance training (10 people) (age 52.20 ± 5.70 years, height 1.57 ± 0.01 cm and weight 88.76 ± 14.81 kg), Simple pyramid resistance training group + placebo (9 people) (age 50.89±4.25 years, height 1.60±0.01 cm and average weight 88.76±7.41 kg) were divided. The resistance training program was a pyramid with an intensity of 70-80% of one repetition maximum. The simple pyramid resistance training group + supplement consumed 0.1 gram per kilogram of body weight of BCAA powder in solution. Serum IGF-1 levels were measured before, 30 and 120 minutes after exercise. Two-way repeated measures statistical test was used to analyze the data. The findings showed that a simple pyramid resistance training session with BCAA supplementation has no effect on IGF-1 serum levels at different training times of postmenopausal women. Also, the difference between the groups in the level of IGF-1 after exercise was not significant. Probably, a simple pyramid resistance training session with and without BCAA supplementation at the rate of 0.1 gram per kilogram of body weight before and after training has no effect on the initial increase of IGF-1. Manuscript profile

the aim of this study was to investigate the effect of nonlinear resistance training with dill extract on adropine and its relationship with insulin resistance in type 2 diabetic patients. 32 patients with type 2 diabetes were divided into four groups: resistance training, supplementation, resistance training + supplementation, and placebo. Interventions were performed for 12 weeks. Consumption of dill included 300 mg / kg body weight per day. Nonlinear resistance training, consumption and their combination significantly reduced blood sugar and insulin resistance and significantly increased adropine levels (P <0.05). These changes were significantly greater in the exercise and dill combination groups. The relationship between adropine changes and insulin resistance was also significant and negative (P <0.05). Adropine may play a role in reducing insulin resistance following nonlinear resistance training. Consumption can increase the effects of exercise. Manuscript profile

Nowadays, by the growth of the internet, social networks are attracting unprecedented attention to themselves. Most people are at least active in one social network. Users in social networks follow their favorite people and topics to discover the latest news about them. This rising number of users has made social networks fertile grounds for advertising and finding the bait. Social networks also become celebrities’ popularity criterion. The problem is that some accounts created to spread malicious links, steal user’s information, and display advertising. These accounts are mainly controlled and supervised by an automatic program. Not only the increase in fake accounts has costs for social networks companies, but it also influences network quality. In this paper, we offer some new and low-cost features to distinguish spam accounts on Twitter. This paper offers some low cost and a new feature to distinguish spam accounts of Twitter. We apply machine learning algorithms to predestined datasets, and by looking at the characteristics of the accounts, then we anticipate class of users by the accuracy of 99.18%. Manuscript profile

the purpose of this study was to investigate the relationship between anthropometric characteristics and player experience with speed, agility and scoring statistics of Khorasan Razavi women's futsal team players. For this reason, 14 players of Khorasan Razavi women's futsal team were evaluated in the group stage of the Iranian Women's Futsal Premier League 1300-1499. Calendar age, physiological age, height, arm circumference, thigh circumference, leg circumference, chest circumference, shoulder width, waist circumference, hip circumference, waist-tohip ratio, playing experience, experience playing in the Premier League, playing experience in the national team, scoring statistics, speed (15 m and 25 m) and agility (4.9 test) were measured. Pearson correlation coefficient test and SPSS software version 16 at the level of P≤0.05 were used for statistical analysis. Based on the results, experience is probably the most important factor for the success in scoring of women futsal players. As in the present study, as the age, years of playing, playing in the Premier League and playing in the national team increased, so did the scoring statistics. On the other hand, it seems that the smaller the circumference of the upper and lower limbs, the better the speed and agility performance, which is probably due to the smaller size of the muscle compared to fat and the reduction of fat in these limbs. Manuscript profile