Comparative study of diet variability on isotonic muscle contraction in adolescent students

Author(s):  
Yathish R ◽  
Sudharshan R ◽  
Mamatha S ◽  
Sudha R ◽  
Divyashree H
Author(s):  
P. T. Nnaji ◽  
V. N. Okpuzor ◽  
E. Morka

Aim: A comparative study was conducted on how the use of social media affects the reading habit and academic performance of secondary school students. Study Design: The study adopted the descriptive survey research design to help elicit data from the target population through questionnaire, observations and interview instruments. Methodology: The questionnaires were randomly administered to both male and female students. Results: Social media is a great digital platform for learning and obtaining current information. There are consequences attached to the proper use and misuse among adolescent students. More than 50% of social media operators in secondary schools are users of Facebook. 58 out of 75 students who scored “A” grade in their favourite subject operated social media. 67.23% of the total respondents who use the social media didn’t score an “A” grade in their favourite subject. Students who operated more than one social media network scarcely scored an “A” grade. Only 3.5% of students spent up to 4 hours of reading every day. 46.5% read for 2-3 hours and 36.5% read for an hour. 11.5% read for 30munites while 2% read for less than 30 minutes. Conclusion: Students should be properly guided and given an adequate orientation before providing them with electronic devices like smart phones. Teachers should be encouraged to join large student groups. Off-topics and non-academic discussions should be curtailed.


2012 ◽  
Vol 15 (2) ◽  
pp. 533-543 ◽  
Author(s):  
Marina Cunha ◽  
Maria Jacinta Paiva

The current study sets out to explore test anxiety in adolescent students. The effect of sociodemographic variables on test anxiety was controlled for and the relationship between test anxiety and other psychological constructs, such as self-criticism, social anxiety, acceptance and mindfulness, was examined. In addition, the predictive effect/power of these variables was analyzed and a comparative study between high and low test anxiety adolescents was conducted. Participants in this study were 449 high school students, 211 boys and 238 girls, with a mean age of 16.28 years. These participants completed a battery of self-report questionnaires composed by the Portuguese versions of Test Anxiety Inventory (TAI), Child Acceptance and Mindfulness Measure (CAMM), Forms of Self-Criticizing/Attacking and Self-Reassuring Scale (FSCRS), and the Social Anxiety and Avoidance Scale for Adolescents (SAASA). Results showed that gender, self-criticism and competencies for acceptance and mindfulness had a significant and an independent contribution on the prediction of test anxiety. The comparative study revealed that adolescents with high test anxiety score significantly higher in negative forms of self-criticism, social anxiety and lower in self-reassurance, acceptance and mindfulness, when compared to those with low test anxiety. Despite its exploratory nature, the current study adds to the existing knowledge on the influence of psychological processes, such as self-criticism and acceptance, on test anxiety. These findings might constitute a relevant contribution to psychological intervention with adolescents.


Author(s):  
Srijan Bhattacharya ◽  
Satwik Halder ◽  
Ankana Sadhu ◽  
Saurav Banerjee ◽  
Suvojit Sinha ◽  
...  

The following chapter is a comparative study of signals obtained using Electromyogram sensors and Ionic Polymer Metal Composite (IPMC) sensors. This chapter studies in detail the behavior of the electromechanical sensor, i.e., IPMC as an EMG sensor. The former being an electromechanical sensor picks up the electrochemical gradient due to flow of ions through the axon ends released within the muscle which ultimately causes the muscle contraction, and also detects the mechanical tension created because of muscle contraction. EMG sensors are an electrical sensor that is able to detect voltage changes due to electrochemical changes under our skin due to voluntary muscle movements. During the relaxed phase, both the sensors stay stagnant at different reference voltage levels, and shows variation in voltages only during the instants of contraction. The characteristic obtained by plotting the experimental readings are compared in the chapter.


2010 ◽  
Vol 1 ◽  
Author(s):  
Brian S. Muntean ◽  
Christine M. Horvat ◽  
James H. Behler ◽  
Wissam A. AbouAlaiwi ◽  
Andromeda M. Nauli ◽  
...  

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