• Journal of Korean Academy of Nursing Administration
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• v.21 no.5
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• pp.575-586
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• 2015

Purpose: The purpose of this study was to provide a concept analysis of nursing leadership. Methods: The concept analysis process of Walker and Avant (2011) was used. A review of the literature was conducted using several databases, including PubMed, CINAHL, Ovid-Medline, DBpia, and KISS. The databases were searched using the following terms 'nursing leadership', 'nursing' & 'leadership', and 'nurse & 'leadership', and for studies published from January 2000 to March 2015. Strict inclusion and exclusion criteria were applied. Results: Analysis of these studies indicated nursing leadership attributes were individual growth, collaboration, nursing excellence, creative problem solving, and influence. The antecedents of nursing leadership were the individual maturity level, construction of mutual trust and confidential relationships, and a job requirement. The consequences were improvement in nursing productivity, development of a supportive work environment, and satisfaction with the nursing profession. Conclusion: The findings in this study provide a definite concept of nursing leadership. The findings also provide the theoretical evidence for the development of nursing leadership competencies in nursing students and professional nurses.

• Korean Journal of Artificial Intelligence
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• v.11 no.2
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• pp.19-27
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• 2023

In recent times, an exponential increase in Internet traffic has been observed as a result of advancing development of the Internet of Things, mobile networks with sensors, and communication functions within various devices. Further, the COVID-19 pandemic has inevitably led to an explosion of social network traffic. Within this context, considerable attention has been drawn to research on network traffic analysis based on machine learning. In this paper, we design and develop a new machine learning framework for network traffic analysis whereby normal and abnormal traffic is distinguished from one another. To achieve this, we combine together well-known machine learning algorithms and network traffic analysis techniques. Using one of the most widely used datasets KDD CUP'99 in the Weka and Apache Spark environments, we compare and investigate results obtained from time series type analysis of various aspects including malicious codes, feature extraction, data formalization, network traffic measurement tool implementation. Experimental analysis showed that while both the logistic regression and the support vector machine algorithm were excellent for performance evaluation, among these, the logistic regression algorithm performs better. The quantitative analysis results of our proposed machine learning framework show that this approach is reliable and practical, and the performance of the proposed system and another paper is compared and analyzed. In addition, we determined that the framework developed in the Apache Spark environment exhibits a much faster processing speed in the Spark environment than in Weka as there are more datasets used to create and classify machine learning models.

• Journal of the Institute of Electronics Engineers of Korea TC
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• v.44 no.10
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• pp.148-155
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• 2007

The routing optimization mode, which Mobile IPv6 provides for the direct communication between a mobile node and its correspond node, introduces various security threats, thus causing several protocols to be proposed for the secure binding update procedure. In particular, the Kang-Park protocol, which Kang and Park presented in 2005, achieves the optimized cryptographic operations and the strong security, while based on its unique security proxy structure. In spite of such advantages, it has some drawbacks in terms of security and efficiency. This paper improves the Kang-Park protocol through the strong CoA validation and early binding update methods. Also, we show that the improved protocol is better than others.

• Korean Journal of Adult Nursing
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• v.27 no.6
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• pp.634-643
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• 2015

Purpose: The purpose of the study was to investigate the factors affecting on smartphone addiction according to the classification of addiction-risk groups among college students, focusing on self-control. Methods: A sample of 242 college students at K University in Seoul was recruited to participate in the study. A structured questionnaire composed of items for the self-rated smartphone addiction scale and self-control scale was used to collect data. Results: The number of students in smartphone addiction-risk group was 66 (27.3%). This study had 17.5% of the explanatory power, including perceived smartphone necessity (${\beta}=.330$, p=.007), and instant self-control (${\beta}=-.281$, p=.028) in addiction-risk group. Whereas, in non-risk group, the affecting factors included gender (${\beta}=.194$, p=.004), self-awareness of addiction (${\beta}=-.290$, p<.001), and instant self-control (${\beta}=-.281$, p<.001) with 31.3% of the explanatory power. Conclusion: There is a need to develop an intervention program to prevent the addiction of smartphones and to improve self-control among college students.

• Journal of Korean Critical Care Nursing
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• v.4 no.2
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• pp.39-46
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• 2011

Purpose: The purpose of this study was to examine the effect of oral hygiene for ventilator-associated pneumonia (VAP) incidence. Methods: This study was used a nonequivalent control group posttest design. This study was performed in two groups, experimental group and control group. The experimental group (36 patients) had performed oral care for 6 times a day. The control group (39 patients) had followed and 3 times oral care a day. Participants were patients of 20 years of age or older on mechanical ventilation more than 48 hours from July 5 to October 31 in 2007 at the medical and surgical ICU of C university hospital. Results: VAP occurred in 5 cases in the control group, while only 1 case occurred in the experimental group. Incidence for 1000 ventilator day was 12.59 in the control group and 2.18 in the experimental group. Conclusion: Nursing intervention of 6 times oral care a day proved to decrease incidence of VAP. A guideline should be made using the above nursing intervention for the critical ill patients receiving mechanical ventilation.

• Journal of muscle and joint health
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• v.26 no.2
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• pp.63-71
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• 2019

Purpose: This descriptive study investigated the mediating and moderating effects of fear of fall on the relationships between health belief on fall, fall-related knowledge and fall prevention behaviors among older adults Methods: We enrolled 229 older adults residing in a senior citizen hall and community welfare center, and investigated their health belief on fall, fall-related knowledge, fall prevention behavior, and fear of fall. Descriptive statistics, ANOVA and t-test were used to analyze differences in variables. Pearson correlation and multiple regression were used to investigate mediating and moderating effects of the fear of fall on the relationships between health belief on fall, fall-related knowledge, and fall prevention behaviors. Results: The fear of fall significantly mediated the health belief on fall and fall prevention behaviors, but there was no significant mediation between knowledge of fall and fall prevention behaviors. The fear of fall did not have a moderating effect on the relationships between health belief on fall, knowledge of fall, and fall prevention behaviors. Conclusion: It is important to investigate and implement health belief on fall and fear of fall among older adults to improve their fall prevention behaviors.

• Journal of the Korean Society of School Health
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• v.35 no.3
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• pp.92-103
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• 2022

Purpose: The purpose of this study was to prepare basic data for education and policy proposals related to enhancement of happiness by identifying factors affecting the subjective happiness among Korean adolescents by family type. Methods: The study was a secondary analysis using the raw data of the 16th Youth Risk Behavior Web-based Survey (2020). A complex sample multiple logistic regression analysis was conducted to identify factors affecting adolescent happiness by family type. Results: As a result, the factors that commonly affect the subjective happiness of adolescents for all family types were identified as economic status, academic performance, perceived stress, and loneliness. Additional factors that affect the subjective happiness of adolescents of both Korean two-parent and single parent families were sleep and subjective health status. Financial assistance, number of toilets, breakfast, exercise, depression, suicidal ideation, and suicide attempt were also reported for Korean two-parent families. Conclusion: This study provided empirical basic data for enhancing adolescent happiness in consideration of priority targets and family composition characteristics by identifying factors affecting subjective happiness by family type. Adolescent happiness is a factor that should be actively pursued at home, school, and society, and it should be the goal of education for holistic growth of students.

• English Language & Literature Teaching
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• v.12 no.3
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• pp.211-226
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• 2006

This paper examines the crisis of the protagonist's Jewish identity in Philip Roth's Portnoy's Complaint. Jewish values are centered on the philosophy of Judaism and Jewish history. Judaism is based on an ethical monotheism which is Bible-centered. It is characterized by its covenant with God, its humanism, and its emphasis on moral action. It provides essential reasons for man's existence and stresses human confidence and sufficiency. Jewish values can be found in words such as "good," "humanity," "dignity," "responsibility," and "sense of community." These positive Jewish values pervade Philip Roth's fiction paradoxically. Throughout especially Portnoy's Complaint, the protagonist fails to embrace Jewish values in contrast to Bellow or Malamud's heroes and repeat the same mistakes eliciting fits of laughter from readers. The protagonist suffers from his strongly-felt ethical and altruistic impulses perpetually warring with his extreme sexual longings against which he struggles. His desperation grows as he finds himself unable to channel his dissatisfaction and change his situations. His dominating mother and his confusion over Jewishness and Americanism are the main obstacles to his establishment of self-identity. He attempts to build up his gender identity and Jewish identity through his ego-centric sexual relationship with shikses(female gentiles). His inability to embody Jewish values leads to the failure to fulfill his identity. Roth paradoxically shows that the protagonist's realization of Jewishness is essential to the cure for his fragmented self.

• International journal of advanced smart convergence
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• v.6 no.2
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• pp.65-71
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• 2017

Fingerprints are increasingly used for user authentication in small devices such as mobile phones. Therefore, it is important for Fingerprint authentication systems in personal devices to protect the user's fingerprint information while performing efficiently with a lightweight matching algorithm. In this paper, we propose a new method to extract strong minutiae with unique numbers from fingerprint images. Strong minutiae are at all times obtained from fingerprint images, and can be useful for secure and rapid fingerprint authentication. The binary information of strong minutiae of a fingerprint can be transformed securely and can create cancelable fingerprint templates. Also the bit-strings of strong minutiae decrease computing time necessary for the matching procedure between two fingerprints due to the simplicity of bitwise operations. First, we enroll several fingerprints images of a finger. From these images we select a reference fingerprint and put a number on each minutia. Following this procedure, we search for mated-minutiae between the reference fingerprint and other fingerprints one by one. Finally we derive unique numbers of strong minutiae of the finger. In the experiment with the FVC2004 fingerprint database, we show that using the proposed method, strong minutiae can be extracted successfully.

• Journal of Korean Academy of Nursing Administration
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• v.22 no.5
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• pp.540-552
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• 2016

Purpose: This study was conducted to develop a nursing leadership program outcome evaluation system, required for accreditation of nursing education. Methods: A methodological design was used. To ensure the theoretical validity of the evaluation system, learning objectives for nursing education programs and job descriptions for nurses in Korea were verified by analyzing the relationships in the five attributes of the nursing leadership concept. The nursing leadership program outcome evaluation system was developed based on the Kim & Park's developmental model (2008). Results: The nursing leadership program outcome evaluation system was established, including implementation level, education curriculum, level of performance, evaluation method, rubrics, and Close-the-Loop. Conclusion: The developed evaluation system can be actively used in nursing education, and contribute to enhancing the leadership competencies of nursing students and graduate nurses.