PURPOSE: The purpose of this study was to investigate the influences of depression, stress, and self-efficacy on the addiction to cell phone use among university students. METHODS: Data were collected through questionnaires from 563 students and analyzed by applying descriptive statistics, t-test, chi-square test, and stepwise multiple regression with SPSS/WIN 16.0. RESULTS: The proportion of depressed subjects was 52.6%. The addictive group scored higher than the non-addictive group in depression rate and stress, but scored lower in self-efficacy. Out of the subjects, 32.9% were found to be addictive users, 31.3% at potential risk, and 1.6% at high risk. Significant variables influencing addictive users were stress, self-efficacy, and the user's general characteristics including monthly spending money, sex, the hours of daily use, and the main method of use. CONCLUSION: It is concluded that such variables should be carefully considered in interventions for university students addicted to cell phone use.
Cellular Phone ; Depression ; Humans

OBJECTIVE: It is still the important subject that 3D visualizing of medical images to help patient diagnose. There were many challenges for fast 3D visualization but it has some limitations that volume rendering without high price's hardware and software. Some techniques through the web were suggested to construct high quality's 3D visualization even though it was an only poor personal computer. This technique could share the volume rendering board and diagnose 3D images together. However there are some problems to construct web based 3D visualization. These are network delay, optimized visualization and security etc. The purpose of this paper was to visualize and control the 3D medical image having a high quality on the web. METHODS: To construct this system, we used mainly three tools which were VolumePro1000 board, WMV9(Windows Media Video 9 Codec) and socket functions based on TCP(Transmission Control Protocol). VolumePro1000 board could calculate quickly heavy matrixes of 3D images using phong's shading and shear-warp factorization. WMV9 was able to compress efficiently live images and to apply image streaming technique. Socket functions based on TCP transmitted messages to control the 3D images. RESULTS: We developed 3D visualization system and evaluated about image qualities and transmission conditions of different compression rates on unfixed network condition. CONCLUSION: It was big advantages that WMV9 encoder could decode automatically in many platforms(desk top, PDA, notebook, cellular phone, etc) without installing specific decoding programs if they only have Windows Media player. We expect 3D visualization system to be utilized various biomedical fields such as IIGS(Interactive Image Guided Surgery), CAD(Computer Aided Diagnosis) and Tele-medicine technologies.
Cellular Phone ; Humans ; Microcomputers ; Rivers*

PURPOSE: This study was done to develop an education program on cell phone use for elementary school students, and examine its effects on their knowledge, attitude, self-efficacy, and self-control in cell phone use. METHODS: The study was designed using a nonequivalent control group pretest-posttest design. The participants were 64 elementary school students (31 in the experimental group and 33 in the control group). Students in the experimental group were given the education program on cell phone use. The data were analyzed using the SPSS/WIN 19.0 program. RESULTS: Students in the experimental group reported increased knowledge and attitude regarding cell phone use which were significantly higher than students in the control group (p<.001, p<.001). But, self-efficacy and self-control for students in the experimental group were not different from those in the control group. CONCLUSION: The study results indicate that the education program for cell phone use is effective in increasing knowledge and attitude regarding cell phone use in elementary school students.
Behavior, Addictive ; Cellular Phone ; Humans ; Child Health

No abstract available.
Anxiety ; Cellular Phone ; Humans ; Impulsive Behavior

No abstract available.
Anxiety ; Cellular Phone ; Humans ; Impulsive Behavior

PURPOSE: This study was done to develop a cell phone addiction prevention program for middle school students, and to examine the effects of the program on self-esteem, self-efficacy, impulsiveness, and cell phone use. METHODS: The study was designed using a nonequivalent control group pre-test-post-test design. The participants were 63 middle school students (31 in the experimental group and 32 in the control group). Students in the experimental group were given the cell phone addiction prevention program. The data were analyzed using the SPSS/WIN 14.0 program. RESULTS: Students in the experimental group reported a significant increase in self-esteem compared to students in the control group. Students in the experimental group also reported a significant decrease in cell phone use compared to students in the control group. CONCLUSION: The results of the study indicate that the cell phone addiction prevention program was effective in increasing self-esteem and decreasing cell phone use in middle school students.
Behavior, Addictive ; Cellular Phone ; Humans ; Child Health

PURPOSE: This study was done to identify satisfaction with the method of evaluating practical skills in fundamental nursing through cellular phone animation self-monitoring and feedback. METHOD: The participants were 163 first-year student nurses. Data were collected from October 1 to 5 2007 using a structured questionnaire. RESULTS: The average score for satisfaction was 3.65(+/-.69) and the highest score was for the item, "I was pleased to have the opportunity of relearning by looking back at my behaviors through self monitoring" with 4.05(+/-.89). The average score for dissatisfaction was 3.23(+/-.90) and the highest score was "I memorized only orders according to the checklist" with 3.65(+/-.97). The practical tests method showed a significant difference according to motivation for application to college of nursing (F=3.11, p=.047). There was a significant positive correlation between practical education satisfaction and test method (r=.363, p=.000). CONCLUSION: These findings show that there is a need to develop strategies to improve practical test methods for student nurses.
Cellular Phone ; Humans ; Motivation ; Urinary Catheterization

PURPOSE: This study was done to develop a cell phone addiction scale for Korean parents of young children, and to evaluate the reliability and validity of the developed scale. METHODS: The scale was developed through construction of a conceptual framework, generation of initial items, verification of content validity, selection of secondary items, preliminary study, and extraction of final items. Participants were 465 parents and 178 children. Data were analyzed using item analysis, factor analysis, criterion related validity, internal consistency, and split-half reliability. RESULTS: Twenty items were categorized into three factors explaining 60.3% of total variance. Factors were named as withdrawal - 4 items, loss of control - 9 items, and persistence - 7 items. Scores for the scale were significantly correlated with self-control, impulsiveness, cell phone use, and cell phone addiction of children as measured by a scale for Korean children. Cronbach's alpha coefficient for the 20 items was .94, and Guttman coefficient was .87. Scale scores identified children as high risk users, at risk users, or average users by standard scores. CONCLUSION: The results suggest that the cell phone addiction scale for Korean parents is a reliable and valid instrument to measure cell phone addiction in young children.
Behavior, Addictive ; Cellular Phone ; Child ; Humans ; Parents ; Reproducibility of Results

OBJECTIVES: In this study, we performed a preliminary investigation for establishing guidelines for the usage of smartphones in children and adolescents. METHODS: From March 2014 to August 2014, 182 board-certified psychiatrists were asked to participate in the survey ; 121 participants completed the questionnaire. The questionnaire was developed by the authors, mainly the Public Relations Committee of the Korean Academy of Child and Adolescent Psychiatry. It evaluates psychiatrists' opinions on the use of smartphones in children and adolescents. In addition, psychiatrists' attitudes towards their own usage of smartphones were assessed in order to determine the impact on their opinion towards the children's usage. RESULTS: Psychiatrists have recommended various opinions as the appropriate age to own a smartphone for the first time. Mean age recommended by psychiatrists is grade 7.7. One-hundred participants (82.6%) agreed to the age limit to own a smartphone for the first time. In addition all participants agreed to the necessity of a time limit in children and adolescents. Psychiatrists (17.4%) who disagree on the age limit in children considered the smartphone more useful by themselves compared to psychiatrists who agreed on the age limit. CONCLUSION: Most psychiatrists have recommended that an appropriate limit for smartphone usage in children and adolescents is needed.
Adolescent Psychiatry ; Adolescent* ; Cellular Phone ; Child* ; Humans ; Psychiatry* ; Public Relations

PURPOSE: This study was done to develop a prevention program for media addiction in elementary school students, and to examine its effects on television addiction, internet addiction, cellular phone addiction, and impulsiveness. METHODS: The study was designed using a nonequivalent control group pretest-posttest design. The participants were 58 elementary school students (29 in the experimental group and 29 in the control group). Students in the experimental group were given the prevention program for media addiction. The data were analyzed using the SPSS/WIN 19.0 program. RESULTS: Students in the experimental group reported a significant decrease in television addiction compared to students in the control group. CONCLUSION: The results of the study indicate that the prevention program for media addiction was effective in decreasing television addiction in elementary school students.
Behavior, Addictive ; Cellular Phone ; Humans ; Internet* ; Program Development ; Television*