When Scents Help Me Remember My Password

2021 ◽  
Vol 18 (3) ◽  
pp. 1-18
Author(s):  
Anas Ali Alkasasbeh ◽  
Fotios Spyridonis ◽  
Gheorghita Ghinea

Current authentication processes overwhelmingly rely on audiovisual data, comprising images, text or audio. However, the use of olfactory data (scents) has remained unexploited in the authentication process, notwithstanding their verified potential to act as cues for information recall. Accordingly, in this paper, a new authentication process is proposed in which olfactory media are used as cues in the login phase. To this end, PassSmell , a proof of concept authentication application, is developed in which words and olfactory media act as passwords and olfactory passwords, respectively. In order to evaluate the potential of PassSmell, two different versions were developed, namely one which was olfactory-enhanced and another which did not employ olfactory media. Forty-two participants were invited to take part in the experiment, evenly split into a control and experimental group. For assessment purposes, we recorded the time taken to logon as well as the number of failed/successful login attempts; we also asked users to complete a Quality of Experience (QoE) questionnaire. In terms of time taken, a significant difference was found between the experimental and the control groups, as determined by an independent sample t-test. Similar results were found with respect to average scores and the number of successful attempts. Regarding user QoE, having olfactory media with words influenced the users positively, emphasizing the potential of using this kind of authentication application in the future.

2021 ◽  
pp. 50-59
Author(s):  
G. Ogar ◽  
A. Shevchenko

Purpose: to develop and experimentally substantiate the effectiveness of the methodology for teaching the basic technique of free-style wrestling in combination with physical training. Material and methods. The study involved 16 young athletes, 8-9 years old, a group of initial training, the first year of training, who were engaged in the department of free-style wrestling KZ «KDYUSSH №4» in Kharkov. The boys were divided into two equal groups (experimental and control), according to the results of testing the level of development of physical abilities (p>0,05). An experimental methodology of basic technical training for young freestyle wrestlers of the initial level of training was developed, which consisted not only of means and methods of teaching certain elements of wrestling techniques, but also a large number of preparatory, special exercises, games and game tasks, different in coordination complexity. It was on the basis of versatile coordination training, which was solved mainly by the game method, that the experimental methodology of the basic technical training of young athletes was built. Research methods: analysis of scientific and methodological sources; generalization of the practical experience of practitioners; pedagogical observations; pedagogical experiment; pedagogical testing; method of expert assessments; methods of mathematical statistics. Results: the advantage of young wrestlers in the experimental group was determined by almost all the studied indicators. A regularity was noticed, with an increase in the complexity of the exercise, the difference in the quality of its fulfillment by young wrestlers from the experimental and control groups increased. In special exercises, these are running to the subdominant side (t=6,20; p˂0,001), and throwing off the legs from the passage (t=3,27; p˂0,01), in the study of the quality of performing techniques in the stalls - a coup coasting (t=3,33; p˂0,01) in the study of technical readiness in a standing position - an incline throw with a hold of the legs (t=3,68; p˂0,01) knocking down with a hold of the legs (t=3,24; p˂0,01), as well as maneuvering (t=3,37; p˂0,01). There was no significant difference in the quality of performance of technical actions between the experimental and control groups, only in four of the sixteen studied indicators (p>0,05). Conclusions. The effectiveness of the experimental methodology of basic technical training of young wrestlers, used in the group of initial training, has been proved. According to most of the studied indicators, the advantage of young wrestlers in the experimental group was determined (p˂0,05-p˂0,001). The following tendency is observed, with an increase in the coordination complexity of the studied technical actions or movements, the probability of differences between the quality of this action fulfillment by young athletes of the experimental and control groups increases, in favor of the former. Only in simpler, in terms of coordination structure, movements, the advantages of the experimental group under study, confirmed by mathematical calculations, were not revealed (p˂0,05). Keywords: freestyle wrestling, young wrestlers, initial training groups, basic technical training, coordination development.


2021 ◽  
Vol 15 (6) ◽  
pp. 1578-1582
Author(s):  
Mine Gül ◽  
Doğukan Çelik

Aim: To examine the effects of coordination applied to 8-10 years old female athletes on tennis and some motor skills. Metodology: The athletes were randomly divided into experiment and control groups by applying Dewitt-Dugan tennis test, standing long jump, vertical jump, 20m speed, T test and square test. In the study, while the control group only participated in club training for 8 weeks, 5 days a week and 60 min.and the experimental group added coordination training education. Data was collected and entered in SPSS 22.0. Results: There was a significant difference (p<0.05) in the parameters of all measurements of the experimental group in the standing long jump, vertical jump, 20m speed, t test and Dewitt-Dugan parameters and no significant change in the square test results (p>0.05). Among the final measurement values of the experimental and control groups, significant differences were found in favor of the experimental group in the values of standing long jump, vertical jump, 20m speed and Dewitt-Dugan parameters, except for the T test and the square test (p<0.05). Conclusion: It can be said that the 8-week coordination training applied to the experimental group has a positive effect on the motor characteristics and tennis skill, and specific coordination movements added to each unit training can be beneficial for the athletes. Keywords:Racket Sports, coordination, skill development, training, drills.


Author(s):  
FatemehSadat Seyed Nematollah Roshan ◽  
Hasan Navipor ◽  
Fatemeh Alhani

AbstractBackgroundAnemia is the most prevalent disease in teenage girls and like other chronic diseases not only affects different aspects of their quality of life (QOl) but also quality of life of their parents.ObjectiveThe aim of present study is investigating the effectiveness of family centered empowerment model (FCEM) on adolescent girls with anemia and their mother’s quality of life.MethodsSemi-experimental practical research is performed by choosing 60 girls with anemia and their mothers classified in two case and control groups based on random allocation in Tehran city. The eight sessions of educational program based on educational needs of girls & mothers in case group done for two months. The post test was carried out 1/5 month after the end of intervention through QOl questionnaire in case and control groups. Data analysis was performed using statistical methods including t-test, paired t-test.ResultsThere was no significant difference in the QOl in adolescent girls and their mothers between the two case and control groups before intervention (P=0/473 & P=0/94 respectively). While, after the intervention independent t-test showed a significant difference between the two case and control groups (P>0/001).ConclusionsFindings showed that the FCEM promote the QOl in adolescent girls with anemia and their mothers. It is recommended that extensive studies be performed on the effectiveness of this model for other chronic diseases in different age groups.


Author(s):  
Hamed Ghaemi ◽  

The present article reports a study carried out to investigate whether or not awareness of ST culture has any impact on the translation quality of translator trainees. 20 Iranian graduated from English translation took part in this study. They were divided into two groups, one experimental and one control groups. After homogenizing the participants through a TOEFL test, a translation pre-test was given to them and then cultural backgrounds of ST were taught to the experimental group who were later required to use the taught material in their classroom translation practice during one academic semester. The control groups were run traditionally as widely practiced in Iranian graduated translation classes. A translation post-test was given to all the groups at the end of the semester. The statistical results demonstrate a significant difference between the pre- and post- tests in the experimental group as compared with the control group.


Author(s):  
Hasanul Arifin Zul And Masitowarni Siregar

This thesis is focused on the investigation of the effect of applying animal cartoon pictures on students’ achievement in writing narrative text. This study aims to find whether applying animal cartoon pictures significantly affect the students’ writing achievement or not. The data in this study were obtained by administering a written test. The population was the 2015/2016 first year (grade XI) of SMA Swasta Nusantara Lubuk Pakam and 66 students were taken as the sample by using random sampling. The sample was divided into two groups, experimental and control groups. The experimental group was taught by applying animal cartoon pictures while the control group without animal cartoon pictures (x = lecturing). The data were taken the scores from the pre-test and post-test to both experimental and control groups. These data were analyzed by using t-test. The result of computing the t-test obviously showed that t-observed is higher than t-table (5.21 >1,67) with the degree of freedom 64 (df =N-2) at the level significance 0,05 one tail test. It showed that the application of animal cartoon pictures significantly affected the students of SMA Swasta Nusantara Lubuk Pakam achievement in writing narrative text.


2017 ◽  
Vol 2 (1) ◽  
pp. 46
Author(s):  
Eva Sudarwati ◽  
Shynta Amalia

Abstract This study attempts to see the effect of Think, Talk, and Write strategy on the students’ narrative writing competence. Considering the importance of the use of teaching media, this study tries to integrate Stick Figure as a teaching media in Think, Talk, and Write Strategy. A quasi experimental study was conducted to see the improvement of the students’ narrative writing competence. It involved 42 students who were selected on the basis of convenience sampling and assigned into two groups; experimental and control groups. The statistical analyses of paired sample t-test in experimental group showed that there was significant improvement on the students’ writing competence before (M=5.77, SD= 2.342) and after (M= 11.79, SD= 2.342), t(21)=12.059, p<0.05.Moreover, the result of independent t-test between experimental and control groups showed a significant difference. It can be seen that the mean differences was 3.79545 and the significance value is lower than 0.05, 0.000<0.05.


Author(s):  
Adeleh Sadeghloo ◽  
Parna Shamsaee ◽  
Elham Hesari ◽  
Golbanhar Akhondzadeh ◽  
Hamid Hojjati

Abstract Introduction Thalassemia, as the most common chronic hereditary blood disorder in humans, can impose many adverse effects on parents and their affected children. On the other hand, positive thinking is the method or the result of a positive focus on a constructive issue, so by teaching positive thinking, we can improve physical and social function, and promote emotional health and overall quality of life. The aim of this study was to determine the effect of positive thinking training on the quality of life of parents of adolescents with thalassemia. Methods This quasi-experimental study was performed on 52 parents of adolescents with thalassemia who attended Taleghani Hospital in Golestan province, Iran in 2017. Samples were randomly assigned into two groups of intervention and control. The positive thinking training (based on the theory of Martin Seligman) was carried out in the intervention group in 10 (45–60 min) sessions over a 5-week period. Data collection tools in this study were the World Health Organization (WHO) quality of life questionnaire (WHOQOL-BREF) and a demographic information questionnaire. Data were analyzed by SPSS-16 software using independent t-test, the paired t-test and a covariance test. Results The results of paired t-test showed a significant difference in the score of quality of life in intervention group before and after the intervention (p < 0.001). However, this test did not show any significant difference in the control group (p = 0.11). The covariance test, after removing the pre-test score, showed a significant difference between the intervention and control groups in terms of the score of quality of life, so that 13% of the changes after the intervention were due to the intervention (p = 0.009, η = 0.13). Conclusion The positive thinking training increased the quality of life of parents of adolescents with thalassemia. Therefore, using this program can be an effective way of improving the quality of life of parents. Thus, positive thinking training is suggested to be used as an effective strategy for increasing the quality of life of parents with ill children.


2018 ◽  
Vol 12 (1) ◽  
pp. 128
Author(s):  
Samer Al-Hammouri

The purpose of this study is to investigate the effect of using Prezi on Al Zaytoonah students&rsquo; performance in French Language reading skill. To achieve the purpose of the study, a pre/post-test was constructed to measure students&rsquo; performance in French language reading skill. The sample of the study comprised 128 students from Al Zaytoonah University and was distributed into two sections, which were selected purposefully. The sample of the study was distributed into two groups (one experimental and one control groups). The experimental group&rsquo;s students were taught the reading skill using Prezi while the control groups&rsquo; students were taught using the traditional way. The sample of the study was 64 students in the experimental group and 64 students in the control group. Those groups were distributed into two purposefully selected sections in public schools in Amman. The results of the study showed a variance in the means of the achievement test according to group, it also showed that there were statistically significant differences on the achievement test due to the Strategy variable. There were statistically significant differences between using Prezi Strategy and the Current Strategy in favor of the Prezi Strategy, and there was no statistically significant difference in the students&rsquo; achievement due to gender. There was no statistically significant difference due to the interaction between gender and group. The researchers recommend that researchers focus on new teaching strategies and conduct more studies related this topic. They also recommend that other researchers conduct studies and focus on the role play strategy.


2018 ◽  
Vol 7 (2) ◽  
pp. 91-100
Author(s):  
Islam Namazian Doost ◽  
Soheila Tahmasbi

This study aims to investigate the possible effects of peripheral learning on elementary EFL learners’ grammar improvement: the case of prepositions of time and place. Two elementary classes were selected as experimental and control groups. Before beginning the treatment, a grammar test was administered to both the groups as a pre-test. Then, as treatment, the experimental group was exposed to realia, pictures, posters and texts, while the control group was not. After term-long treatment of 10 weeks, the two groups received the same grammar test as post-test. The results of t-test showed that the experimental group improved their grammar ability, i.e., knowledge of prepositions of time and place more than their friends in the control group. The finding of the study may open an optional path for teachers to include some peripheral materials in their teaching environment to further invest on unconscious learning abilities of the students.   Keywords: Peripheral learning, reposition of time, prepositions of place, grammar.


Author(s):  
Hasan Hasan ◽  
Andi Sadapotto ◽  
Muhammad Hanafi ◽  
Usman Usman

This quasi-experimental study involves the experimental and control group which consist of 60 students in first year of SMA Muhammadiyah Sidenreng Rappang   2019/2020 academic year.  The reading test is used to collect data to find out do the students can achieve significant result in reading test using Text-based Character. Based on the result the mean score of the experimental group pre-test was 72.67 and classified into good classification, while the control group was 69.63 classified into good. The mean score of the post-test after treatment for the experimental group was 82.43 (very good) while the control group was 76.53, (good) classification still.  The researcher found that the T-table is higher than the t-test (α) (1.659<2.021). It means that there is a significant difference in the pre-test of the control and experimental group, while in post-test of an experimental and control group, the researcher finds that the T-test is higher than the alpha and previous score in the the pre-test (α) (3.089>2.021). The degree of freedom is 58. This study reveals that the alternative hypothesis (H1) was accepted, and the null hypothesis (H0) was rejected. This is means that the use of Text-based Characters can improves students' reading skills in significant way.


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