• The Journal of Korean Institute of Communications and Information Sciences
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• v.33 no.4B
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• pp.207-214
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• 2008

Under future internet environment, wireless sensor networks will be used in a wide range of applications. A major problem for designing sensor protocol is developing the most energy efficient technique to monitor an area of interest for a long time since sensors have some constraints such as small and a limited energy level. In addition, data latency is often a critical issue since sensory data is transmitted via multi hop fashion and need to be delivered timely for taking an appropriate action. Our motivation for designing a data forwarding protocol is to minimize energy consumption while keeping data latency bound in wireless sensor networks. In this paper, we propose a data forwarding protocol that consists of wakeup scheduling and MAC protocols, the latter of which is designed to achieve load balancing. Simulation results show that the proposed framework provides more energy-efficient delivery than other protocol.

• Anxiety and mood
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• v.7 no.2
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• pp.119-125
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• 2011

Objectives : The three symptom clusters of posttraumatic stress disorder (PTSD) are reexperience, avoidance, and hyperarousal. Alcohol use disorders frequently co-occur with PTSD, and possible functional correlations are suspected. Scholarly evaluation of the differences between the symptoms of PTSD and those of alcohol problems may be useful in understanding the pathophysiology of the comorbidity. Methods : We recruited Vietnam veterans with PTSD (n=97) and without PTSD (n=132). The alcohol use disorder identification test (AUDIT), and clinician-administered PTSD scale (CAPS) were administered to participants. The PTSD group was divided into two categories: those with PTSD only (n=57) and those with concurrent alcohol-related problems (n=40). Results : The PTSD group showed higher AUDIT scores compared to the control group. In the PTSD group, participants with alcohol problems had a severer symptoms of recurrent dream and sleep disturbance symptoms compared to the PTSD only group. No significant differences were found in the three major symptom clusters of PTSD. Conclusion : These findings support the proposed existence of a functional correlation between PTSD and alcohol use disorder. Clinicians should carefully evaluate and treat comorbid alcohol use disorder in patients with PTSD.

• The Korean Nurse
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• v.31 no.2
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• pp.70-85
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• 1992

Relaxation technique is an independent nursing intervention used in various stressful situations. The concept of relaxation must be explored for the meaning given by the people in their traditional thought and philosophy. Korean relaxation technique, wanting to become culturally acceptable and effective, is learning to recognize and develop Korean concepts, experiences, and musics of relaxation. This study was aimed at discovering Korean concepts, experiences and musics of relaxation and contributing the development of the relaxation technique for Korean people. The subjects were 59 mursing students, 39 hospitalized patients, 61 housewives, 21 rural residents and 16 researchers. Data were collected from September 4th to October 24th, 1991 by interviews or questionaires. The data analysis was done by qualitative research method, and validity assured by conformation of the concept and category by 2nursing scientists who had written a Master's thesis on the relaxation technique. The results of the study were summerized as follows; 1. The meaning of the relaxation concept; From 298 statements, 107 concepts were extracted and then 5 categories "Physical domain", "Psychological domain", "Complex domain", "Situation", and "environment" were organized. 'Don't have discomforts, 'don't have muscle tension', 'don't have energy(him in Korean)', 'don't have activities' subcategories were included in "Physical domain". 'Don't have anxiey', 'feel good', 'emotional stability', 'don't have wordly thoughts', 'feel one's brain muddled', 'loss of desire' subcategories were included in "physical domain" 'Comfort body and mind', 'don't have tension of body and mind', 'be sagged' 'liveliness of thoughts' subcategories were included in "Complex domain". 'Rest', 'sleep', 'others' subcategories were included in "Situation domain". And 'quite environment' & 'comfortable environment' subcategories were included in "Environmental domain". 2. The experiences of the relaxation; From 151 statements, 59 experiences were extracted. And then 9 categories-at rest after physical activities, after problem solving, fancy, bathing in the bed, situation, rest, particular time, others-were organized. 3. The musics of the relaxation; From 229 statements, 108 musics were extracted. and the 9 categories- Western classical music, semi classical music, Korean song, Korean popular classical music, song, western popular sonhg, hymn, characteristics of music, others - were organized. In conclusion, There are some differences between Korean concepts, experiences and musics of relasation and western concepts, experiences and musics of relaxation.

• The Korean Journal of Pain
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• v.23 no.2
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• pp.99-108
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• 2010

Chronic pain is a multifactorial condition with both physical and psychological symptoms, and it affects around 20% of the population in the developed world. In spite of outstanding advances in pain management over the past decades, chronic pain remains a significant problem. This article provides a mechanism- and evidence-based approach to improve the outcome for pharmacologic management of chronic pain. The usual approach to treat mild to moderate pain is to start with a nonopioid analgesic. If this is inadequate, and if there is an element of sleep deprivation, then it is reasonable to add an antidepressant with analgesic qualities. If there is a component of neuropathic pain or fibromyalgia, then a trial with one of the gabapentinoids is appropriate. If these steps are inadequate, then an opioid analgesic may be added. For moderate to severe pain, one would initiate an earlier trial of a long term opioid. Skeletal muscle relaxants and topicals may also be appropriate as single agents or in combination. Meanwhile, the steps of pharmacologic treatments for neuropathic pain include (1) certain antidepressants (tricyclic antidepressants, serotonin and norepinephrine reuptake inhibitors), calcium channel ${\alpha}2-{\delta}$ ligands (gabapentin and pregabalin) and topical lidocaine, (2) opioid analgesics and tramadol (for first-line use in selected clinical circumstances) and (3) certain other antidepressant and antiepileptic medications (topical capsaicin, mexiletine, and N-methyl-d-aspartate receptor antagonists). It is essential to have a thorough understanding about the different pain mechanisms of chronic pain and evidence-based multi-mechanistic treatment. It is also essential to increase the individualization of treatment.

• The Journal of Korean Obstetrics and Gynecology
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• v.19 no.3
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• pp.231-245
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• 2006

Purpose : To investigate and compare the characteristics of menstruation in the shift workers and the day workers, and present guidelines for health promotion of the shift-working women. Methods : Questionnaires including general health condition and QSCC II were distributed to shift-working women and day-working women in one university hospital in Gyeonggi-do and 36 questionnaires of shift-working women and 33 of day-working women were analyzed. Results : Day workers were about 5 years older than shift workers on average. There was more irregularity of menstrual cycle and period in day-working group but it is thought to incorrect because of the age problem. There were more women who have dysmenorrhea in day-working group, but the proportion of dysmenorrhea which continues more than 72 hours -which is very suggestive of secondary dysmenorrhea- was higher in shift-working group. Average VAS of dysmenorrhea was nearly the same in two groups. The life of shift-working group was lesser satisfactory than that of day-working group. There were more sleep disturbances in the shift-working group. Sasang constitution was analyzed in both group using QSCC II, and Taeumin were more in shift-working group. Conclusion : As the number of shift-working women increases, needs for oriental medical treatments would increase because it is more natural and lesser invasive managements which women are very interested in. So it is thought to be necessary to understand health problems of shift-working women, and prepare guidelines for managements and treatments to promote the health of shift-working women.

• The Journal of the Korea institute of electronic communication sciences
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• v.8 no.2
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• pp.345-353
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• 2013

This study was conducted to clarify the effect of sleeping disorder on the life stress of the university student on the side of cooking for himself, housing noise, dissatisfaction in school life, ill health, problem in future and a sense of values. A self-boarding student apart from a family (p<.042) had a higher sleeping stress. Noise of housing environment (p<.002), life dissatisfaction in university (p<.007), ill health (p<.010), life stress (p<.004) led to a more sleeping stress. Both gloomy prospects (p<.002) and a sense of values (p<.001) disturbed a university man's sleep. Cooking food for oneself, housing noise, displeasure in university life, ill health, gloomy prospects and a sense of values gave risen to the university student's sleeping disorder.

• Research in Community and Public Health Nursing
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• v.8 no.2
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• pp.178-196
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• 1997

The purpose of this study is to identify the kind, the frequency, and the type of Stress Management Program(SMPs) throughout life-span used foreign, recent research. The period of this study was from July 1 to Dec. 10, 1997. The data were collected through Medline using two concepts: stress management programs and life-span. The number of these research were 106 and thirty-one experimental researches that were tested the effectiveness of SMPs throughout life span were selected. The data were analysed by the kind, frequency, and life-span. The results were as follows: 1. The kind and frequency of SMP : The total number of the kind of SMP were twenty-two. The most used SMP was relaxation therapy, 22 out of 31. The second biofeedback was 10, the third, cognitive behavior program was 9, the fourth, nutrition and diet, and education were 7. The others were coping skill(4), cognitive therapy(4), breathing(4), imagery(3), autogenic training(3), sleep and rest(2), meditation(2), information(2), desensitization(2), hypnosis(2), behavior therapy(1), time management (1), visualization(I), yoga(I), diversion(1), and problem solving skill. 2. Throughout life-span: Most SMPs were applied to adolescents, young adults, and middle-adults. Other subjects could not be found under the schooler. 3. The type of SMPs : 28(90.3%) out of 31 research used combined-SMP : two-combined SMP, 5: three-combined SMP, twelve: four-combined SMP, seven: five-combined SMP. 4. Afterward, further study such as meta-analysis are needed in order to identify effective ness of the SMPs.

• Journal of Environmental Policy
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• v.14 no.1
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• pp.113-134
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• 2015

In new housing demand, proportion of occupied multi-housing is 89.9% (statistics from 2013). In this way, with many generations living together, apartment noise disputes between the neighbors are continuously rising. The apartment noise problem in Korea is at a very serious level worldwide (about 88% of the population is experiencing stress due to apartment noise). On the other hand, the government has strengthened the regulations (such as the thickness of the floor and floor impact sound reduction performance, etc.) and promoted a resolution of its own for each multi-housing estates for mediating disputes on apartment noise. However, such physical regulations and passive management policies still presents a limit to the dispute mitigation of apartment noise. Also, in order to improve the quality of life in living spaces, policy on health effects of apartment noise should be provided. Therefore, we investigated a case study of the noise exposure-human body reaction to analyze the effect of noise on health. On the basis of this, the health effects according to the exposure period of apartment noise were considered.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.36 no.12A
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• pp.994-1005
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• 2011

In this paper, we propose a novel approach to optimize the movement of mobile sink node, called AMSP(Adaptive Mobile Sink Path) for mobile sensor network environments. Currently available studies usually suffer from unnecessary data transmission resulting from random way point approach. To address the problem, we propose a method which uses the Hilbert curve to create a path. The proposed method guarantees shorten transmission distance between the sink node and each sensor node by assigning orders of the curve according to sensor node density. Furthermore, The schedule of the sink node is informed to all of the sensing nodes so that the Duty Cycle helps the network be more energy efficient. In our experiments, the proposed method outperforms the existing works such as TTDD and CBPER by up to 80% in energy consumption.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.34 no.1A
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• pp.41-49
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• 2009

A crucial issue in deploying wireless sensor networks is to perform a sensing task in an area of interest in an energy-efficient manner since sensor nodes have limited energy Power. The most practical solution to solve this problem is to use a node wake-up scheduling protocol that some sensor nodes stay active to provide sensing service, while the others are inactive for conserving their energy In this paper, we present a simple wake-up scheduling protocol, which can maintain sensing coverage required by applications and yet increase network lifetime by turning off some redundant nodes. In order to do this, we use the concept of a weighted average distance. A node decides whether it is active or inactive based on the weighted average distance. The proposed protocol allows sensor nodes to sleep dynamically while satisfying the required sensing coverage.