Correlation Analysis of the Data From a Mobile Device Accelerometer to Detect the Difference in Step Duration

2020 ◽  
Author(s):  
M. D. Borisova ◽  
K. K. Tomchuk ◽  
A. M. Turlikov
Keyword(s):  
Correlation Analysis ◽  
Mobile Device ◽  
Step Duration ◽  
The Difference

scholarly journals The Effectiveness of Branded Mobile Apps on User’s Brand Attitudes and Purchase Intentions

2016 ◽  
Vol 9 (1) ◽  
pp. 141-154 ◽  
Author(s):  
Victoria A. Seitz ◽  
Nada M. Aldebasi
Keyword(s):  
United States ◽  
Correlation Analysis ◽  
Mobile Device ◽  
Mobile Apps ◽  
The United States ◽  
Purchase Intentions ◽  
Smart Phones ◽  
Brand Attitudes ◽  
Limited Impact ◽  
The Past

AbstractThe mobile device market, particularly for smart phones, has experienced incredible growth over the past five years. What sets this market apart is the use of applications or apps for just about anything from information to purchases. The purpose of the study was to examine the effectiveness of branded apps on consumers’ attitudes toward brands as well as purchase intentions. The sample was drawn from students enrolled at a southwestern university in the United States, resulting in 50 usable questionnaires. Results of Pearson’s correlation analysis indicated that using branded apps strongly influenced users’ attitudes toward brands; however, using branded apps had a smaller impact on purchase intentions. As well, attitudes towards the branded apps, although significant, had a limited impact on purchase intentions. Implications of the findings were then discussed.

scholarly journals Assessment of Educational Game Materials and Poster Practices with Rubrics by Expert Educators and Students

2018 ◽  
Vol 5 (13) ◽  
pp. 79
Author(s):  
Figen Altay ◽  
Kevser Bozkurt
Keyword(s):  
Correlation Analysis ◽  
Educational Games ◽  
Educational Game ◽  
Test Results ◽  
Knowledge Test ◽  
Significant Difference ◽  
Scoring Rubrics ◽  
Sample Test ◽  
The Difference ◽  
Poster Presentations

The purpose of this study was to investigate the difference between evaluations of the educational game materials and poster practices by students’ own peers and by expert educators using the rubrics created by expert educators and students together. Study included 10 students and 3 educators attended educational game materials course. Students were informed about basic skills of movement, game, game types, game equipment, analytical rubric, and educational game lectures were given to the students for 6 weeks and 80 minutes each week. 12-question knowledge test was used regarding educational games, analytical scoring rubrics, developing game materials and preparing posters. Materials and posters presented in the course were recorded. Evaluation scales were selected by students and expert teachers. Selected peers and educators evaluated 25 videos. One-way analysis of variance and correlation analysis were used for the reliability and repeatability measurements of the students and teachers. R values of 0.96-0.92 were found between students and 0.78-0.86 between educators. For knowledge tests of the groups, according to Wilcoxon paired two-sample test, there was a significant difference in test results (p<.05). The t test was used in the results of the student and educator video evaluations and there was no significant difference between the scores given by the expert educators and the students to the material and poster presentations (p>.05). In conclusion, this study showed that students could make evaluations as good as expert educators when given an answer key such as a scoring rubric that will help them in the evaluation.

scholarly journals Six-year analysis of traumatic injuries of the craniomaxillofacial area: relation between maxillofacial and traumatic brain injuries

2021 ◽  
Vol 105 (1) ◽  
pp. 56-60
Author(s):  
E. Shuminsky ◽  
◽  
A. Kopchak ◽  
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Correlation Analysis ◽  
Brain Injuries ◽  
Statistical Significance ◽  
Maxillofacial Trauma ◽  
Traumatic Injuries ◽  
The Face ◽  
The Difference ◽  
Panfacial Fractures

Summary. Craniofacial trauma is one of the most difficult types of injuries. There is disagreement among various authors about the relationship between maxillofacial trauma (MFT) and traumatic brain injury (TBI). Purpose. Retrospectively evaluate the epidemiology of traumatic injuries of the craniomaxillofacial area and determine whether there is a relationship between different isolated or combined fractures of the facial bones and brain damage. Materials and methods. The case histories of three groups of patients with isolated fractures of the mandible (I group), isolated fractures of the midface zone (II group) and combined fractures of all areas of the face (III group), who were hospitalized in the period from 2012 to 2017, were analyzed. The main epidemiological indicators were determined. The analysis of indicators of severity of MFT and TBI is carried out. Correlation analysis of indicators, analysis using the Kruskal- Wallis test and Steel-Dwass test for pairwise comparisons was performed. Results. Were treated519 patients. 457 men (88 %) and 62 women (12 %). The main causes of injuries were assaults (40 %). Correlation analysis did not reveal the dependence of MFT and TBI. The difference in severity of isolated fractures of the mandible and midface bones was statistically significant, and there is a statistical significance between the severity of TBI in case of isolated fractures of midface bones and panfacial fractures (p < 0.05). Conclusions. The severity of maxillofacial trauma in the case of panfacial fractures is on average 3 times higher than in the case of isolated fractures of the lower jaw or midface bones. The severity of TBI is largely consistent with concussion in all groups, but in the group with panfacial fractures, the median rate is lower comparing to other groups. Key words: Glasgow coma scale, fracture, Le Fort, traumatic brain injury

scholarly journals Comparing Semantic Differential Methods in Affective Engineering Processes: A Case Study on Vehicle Instrument Panels

2020 ◽  
Vol 10 (14) ◽  
pp. 4751
Author(s):  
Gee Won Shin ◽  
Sunghwan Park ◽  
Yong Min Kim ◽  
Yushin Lee ◽  
Myung Hwan Yun
Keyword(s):  
Correlation Analysis ◽  
Repeated Measures ◽  
Evaluation Method ◽  
Correlation Coefficients ◽  
Semantic Differential ◽  
Affective Evaluation ◽  
Relative Evaluation ◽  
The Difference ◽  
Sample Pair

When developing a user-oriented product, it is crucial to consider users’ affective needs. Various semantic differential (SD) methods have been used to identify affect regarding materials, and this is the most important property in products. This study aims to determine which of the three conventional SD methods (absolute evaluation 1 [AE 1], absolute evaluation 2 [AE 2], or relative evaluation [RE]) is most effective for affective evaluation. Affective evaluation was performed for vehicle instrument panels by each of these three SD methods. Two quantitative analysis methods (correlation analysis and repeated-measures ANOVA) were used to examine the performance (sample distinguishability) of each evaluation method, and it was found that both AE 2 and RE produced better results than AE 1. The correlation coefficients and p-values in correlation analysis were slightly better for RE than for AE 2. In conclusion, an affective evaluation produced better results when pairwise samples (especially one sample pair) were presented, indicating that maintaining distinct samples is very important. The clearer the difference in comparison targets is, the more accurate the evaluation results.

scholarly journals KERNEL MAD ALGORITHM FOR RELATIVE RADIOMETRIC NORMALIZATION

2016 ◽  
Vol III-1 ◽  
pp. 49-53 ◽  
Author(s):  
Yang Bai ◽  
Ping Tang ◽  
Changmiao Hu
Keyword(s):  
Correlation Analysis ◽  
Canonical Correlation Analysis ◽  
Canonical Correlation ◽  
Landsat 8 ◽  
Linear Relationships ◽  
Multi Temporal ◽  
Kernel Canonical Correlation Analysis ◽  
The Difference ◽  
Complex Relationships ◽  
Beijing China

The multivariate alteration detection (MAD) algorithm is commonly used in relative radiometric normalization. This algorithm is based on linear canonical correlation analysis (CCA) which can analyze only linear relationships among bands. Therefore, we first introduce a new version of MAD in this study based on the established method known as kernel canonical correlation analysis (KCCA). The proposed method effectively extracts the non-linear and complex relationships among variables. We then conduct relative radiometric normalization experiments on both the linear CCA and KCCA version of the MAD algorithm with the use of Landsat-8 data of Beijing, China, and Gaofen-1(GF-1) data derived from South China. Finally, we analyze the difference between the two methods. Results show that the KCCA-based MAD can be satisfactorily applied to relative radiometric normalization, this algorithm can well describe the nonlinear relationship between multi-temporal images. This work is the first attempt to apply a KCCA-based MAD algorithm to relative radiometric normalization.

scholarly journals Regional Relocation and Phonetic Dialect Markers

2021 ◽  
Vol 7 (2) ◽  
pp. 39-47
Author(s):  
Victoria Kuo
Keyword(s):  
Longitudinal Study ◽  
Correlation Analysis ◽  
Hypothesis Testing ◽  
The Other ◽  
Pearson’S Correlation ◽  
Regional Dialect ◽  
Pearson's Correlation ◽  
The Difference ◽  
Phonological Change ◽  
Over Time

  This paper tracks phonological change in the (ING) morpheme in two YouTube personalities over time. Both participants relocated to a different dialect region than their hometowns over the course of their careers, motivating the hypothesis of this paper: geographic relocation is a catalyst for adult accent change. With a longitudinal study method, I selected audio clips from different periods in each YouTuber’s life and collected formant measurements of the targeted words. Based on a Pearson’s correlation analysis and hypothesis testing models, the participants showed statistically significant progression in their speech over time. Additionally, the speakers exhibited audible shifts most likely as an effect of aging. It is inconclusive whether this study’s observations are influenced by the difference in dialect or societal pressures of the relocated locations without further research in the other variables of each regional dialect. 

scholarly journals Vulnerability Evaluation Method through Correlation Analysis of Android Applications

2019 ◽  
Vol 11 (23) ◽  
pp. 6637
Author(s):  
Cheolmin Yeom ◽  
Yoojae Won
Keyword(s):  
Correlation Analysis ◽  
Mobile Devices ◽  
Mobile Device ◽  
Diagnostic Tool ◽  
Evaluation Method ◽  
Data Use ◽  
Single Application ◽  
Vulnerability Evaluation ◽  
Android Applications

Due to people in companies use mobile devices to access corporate data, attackers targeting corporate data use vulnerabilities in mobile devices. Most vulnerabilities in applications are caused by the carelessness of developers, and confused deputy attacks and data leak attacks using inter-application vulnerabilities are possible. These vulnerabilities are difficult to find through the single-application diagnostic tool that is currently being studied. This paper proposes a process to automate the decompilation of all the applications on a user’s mobile device and a mechanism to find inter-application vulnerabilities. The mechanism generates a list and matrix, detailing the vulnerabilities in the mobile device. The proposed mechanism is validated through an experiment on an actual mobile device with four installed applications, and the results show that the mechanism can accurately capture all application risks as well as inter-application risks. Through this mechanism, users can expect to find the risks in their mobile devices in advance and prevent damage.

Organisational Justice Perception

2014 ◽  
pp. 296-322 ◽  
Author(s):  
Anshuman Bhattacharya
Keyword(s):  
Correlation Analysis ◽  
Work Attitudes ◽  
Mutual Relationship ◽  
Perceived Justice ◽  
Work Attitude ◽  
Organisational Justice ◽  
Justice Perception ◽  
The Difference ◽  
The Relationship ◽  
Self Administered Questionnaire

The mutual relationship between employer and employee develops at the workplace on the premise of reciprocity of expectations from each other. Fulfilment of these expectations is the perception of either of the two. When an employee perceives prevalence of justice in the organization, he correlates the perception with all organisational stimuli. This chapter shows that work attitude varies in employees as a result of the difference in perceived justice in the organization. It also hypothesizes the relationship among justice perception, responses to organisational facilities, and interpersonal interactional opportunities. The chapter is a correlation analysis of variables through a self-administered questionnaire consisting of responses in Likert's scale. Some of the responses and attitudes in the study significantly correlated with the perceived level of a component of organisational justice. The study re-establishes significance of non-pecuniary means in determining work attitudes.

scholarly journals Serum Carbohydrate Antigen 199 as a Biomarker for Evaluating Patients with Choledocholithiasis

2020 ◽  
Vol 2020 ◽  
pp. 1-5 ◽  
Author(s):  
Wang Gu ◽  
Zhong Tong
Keyword(s):  
Correlation Analysis ◽  
White Cell Count ◽  
Elevated Serum ◽  
Serum Levels ◽  
Carbohydrate Antigen ◽  
Cell Counts ◽  
Blood Cell Counts ◽  
Serum Carbohydrate Antigen ◽  
The Difference ◽  
White Blood Cell Counts

Aims. Choledocholithiasis is a common and yet potentially debilitating disease of the biliary tract. While certain patients with this disease remain largely asymptomatic or experience mild discomfort, in several cases, patient can suffer biliary inflammation and other serious symptoms. Previous studies have detected elevated serum levels of carbohydrate antigen 199 in patients with choledocholithiasis. We wanted to know whether serum CA199 level in patients with choledocholithiasis is related to the level of inflammation in patients. Methods. In the present study, we separated a cohort of 135 choledocholithiasis patients into two groups based on their white blood cell counts, which were either 3.5−9.5×109/L or ≥9.5×109/L. We also divided patients into two groups according to CPR < 10 mg/L and CRP ≥ 10 mg/L. At the same time, the correlation between CA199 and CRP level was analyzed. Results. We then used a Rank-sum test to compare serum carbohydrate 199 levels between these groups, revealing significantly higher levels of this antigen in patients with a white cell count ≥9.5×109/L (Z=−3.584, P<0.01). The two groups were grouped by CRP, and the CA199 level was compared. The difference between the two groups was statistically significant (P<0.01). The correlation analysis between CA199 and CRP showed an obvious correlation (r=0.574). Conclusion. This suggests that in patients with choledocholithiasis, higher circulating carbohydrate antigen 199 levels may correspond to a higher degree of inflammation.

scholarly journals Time Asymmetries in Pulsar Signals

1981 ◽  
Vol 95 ◽  
pp. 197-198
Author(s):  
Dan R. Stinebring ◽  
James M. Cordes
Keyword(s):  
Correlation Analysis ◽  
Decay Time ◽  
Time Scale ◽  
Temporal Modulation ◽  
Third Order ◽  
Emission Process ◽  
Symmetrical Distribution ◽  
Average Shape ◽  
Average Profile ◽  
The Difference

The average shape of micropulses in two pulsars is highly symmetric, unlike the subpulse emission which is skewed in the same sense as the average profiles. These conclusions stem from a third-order correlation analysis of the emission from PSR 0950+08 and PSR 2016+28. The symmetric micropulses may be produced either by temporal modulation or angular beaming of the radiation. If due to temporal modulation, this average symmetry implies a distribution of time-scales in the emission process: the difference between the rise time-scale (τr) and the decay time-scale (τd) must be small compared to δτr and/or δτd. Subpulses in PSR 0950+08 are narrower than and have the same sense of asymmetry as the average profile. In PSR 2016+28 the two subpulses typically present in a pulse are both tapered toward the outside edge of the pulse. In both pulsars, the skewness of the subpulses contributes significantly to the skewness of the average profile; a symmetrical distribution of these subpulses within the pulse window could then give rise to an asymmetrical profile.

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