• Asia pacific journal of information systems
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• 제20권1호
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• pp.57-79
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• 2010

In a virtual community, one can possess multiple identities and pretend to be different by creating self-identity in contrast with his or her actual self. Does false identity undermine the qualitative growth of a virtual community by reducing members' accountability? Or does it stimulate their contributive behaviors by ensuring freedom of speech? It is imperative to understand the effects of multi-identity considering the distinct properties of a virtual community in which people easily change their identities at little or no cost. To answer these questions, we adopted the concept of self-discrepancy from the social psychology theory rooted in the concept of the self and developed a theoretical model to predict quality of contribution of the individual member in virtual communities. Based on the self-discrepancy theory, we first identified two different domains of the self: (1) an "actual self" that consists of attributes that the person believes he or she currently possesses in real life and (2) a "cyber self" that consists of attributes the person believes he or she possesses in a virtual community. Next, we derived an index for two different types of self-discrepancy by using the differences between the actual and the cyber identities: Personal Self-discrepancy and Social Self-discrepancy. Personal Self-discrepancy reflects the degree of discrepancy between actual and cyber identity regarding a person's intelligence, education, and expertise. Social Self-discrepancy reflects the degree of discrepancy between actual and cyber identity regarding a person's morality, sociability, and accordance with social norms. Finally, we linked them with sense of virtual community, perceived privacy rights, and quality of contribution to examine how having a multi-identity influences an individual's psychological state and contributive behaviors in a virtual community. The results of the analysis based on 266 respondents showed that Social Self-discrepancy negatively influenced both the Sense of Virtual Community and Perceived Privacy Rights, while Personal Self-discrepancy negatively influenced only Perceived Privacy Rights, thereby resulting in reduced quality of contribution in virtual communities. Based on the results of this analysis, we can explain the dysfunctions of multi-identity in virtual communities. First, people who pretend to be different by engaging in socially undesirable behaviors under their alternative identities are more likely to suffer lower levels of psychological wellbeing and thus experience lower levels of sense of virtual community than others. Second, people do not perceive a high level of privacy rights reflecting catharsis, recovery, or autonomy, even though they create different selves and engage in socially undesirable behaviors in a virtual community. Third, people who pretend to be different persons in terms of their intelligence, education, or expertise also indirectly debase the quality of contribution by decreasing perceived privacy rights. The results suggest that virtual community managers should pay more attention to the negative influences exercised by multi-identity on the quality of contribution, thereby controlling the need to create alternative identities in virtual communities. We hope that more research will be conducted on this underexplored area of multi-identity and that our theoretical framework will serve as a useful conceptual tool for all endeavors.

• 말소리와 음성과학
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• 제4권4호
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• pp.155-162
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• 2012

The population of Korea is ageing as the number of elderly people increases due to improvements in health care and diet. Accordingly, it is expected that interest in how to live actively during the years after retirement and how to communicate effectively will increase the demand for voice improvement methods and technology. However, the criteria to evaluate the voice strength and characteristics of the elderly are lacking. In this study, we analyzed the acoustic characteristics of elderly women living in the community according to residential status and mental health status (e.g. depressive mood). Accordingly, we selected women (n=63) above the age of 65 age who were living in the Seoul metropolitan area and Daegu Gyeongbuk. The selected subjects were divided into two groups: a normal speaker group (n=40) and a speaker group comprised of those suffering from depressive mood (n=23). This study analyzed the voice characteristics of subjects based on collected data through the sustained phonation of the vowel /a/. It was shown that there were differences among MPT, F0, Jitter, Shimmer and NHR depending on location of residence but no difference with regard to depressive mood. Therefore, we must consider location of residence in elderly as the key factor in demonstrating the voice norms of seniors.

• 한국치위생학회지
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• 제19권4호
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• pp.577-589
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• 2019

Objectives: The purpose of this study was to investigate the effects of general and oral health on quality of life in the elderly living alone and with family. Methods: We analyzed data from the $6^{th}$ Korea National Health and Nutrition Examination Survey. Distribution of the elderly living alone and with family based on the general characteristics and general and oral health was analyzed using complex-sample chi-square tests. Multiple logistic regression was used to analyze the factors affecting quality of life by calculating the 95% confidence intervals. Results: In the elderly living alone, the quality of life significantly correlated with restriction of activity, perceived general and oral health status, perceived stress, and speech difficulties. Further, in the elderly living with family, lower quality of life significantly correlated with restriction of activity, perceived health status, walking days per week, life time smoking history, Community Periodontal Index, and chewing and speech difficulties. Conclusions: The elderly are concerned with self-maintenance of general and oral health. Therefore, systematic policies related to health services need to be developed and operated at the national level. It is especially necessary to take social interest in the elderly living alone and a more continuous and professional approach in their health care.

• Advances in robotics research
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• 제2권3호
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• pp.183-199
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• 2018

This paper presents the development of a 3D printed humanoid robotic hands of SignBot, which can perform Malaysian Sign Language (MSL). The study is considered as the first attempt to ease the means of communication between the general community and the hearing-impaired individuals in Malaysia. The signed motions performed by the developed robot in this work can be done by two hands. The designed system, unlike previously conducted work, includes a speech recognition system that can feasibly integrate with the controlling platform of the robot. Furthermore, the design of the system takes into account the grammar of the MSL which differs from that of Malay spoken language. This reduces the redundancy and makes the design more efficient and effective. The robot hands are built with detailed finger joints. Micro servo motors, controlled by Arduino Mega, are also loaded to actuate the relevant joints of selected alphabetical and numerical signs as well as phrases for emergency contexts from MSL. A database for the selected signs is developed wherein the sequential movements of the servo motor arrays are stored. The results showed that the system performed well as the selected signs can be understood by hearing-impaired individuals.

• 말소리와 음성과학
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• 제10권3호
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• pp.1-8
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• 2018

The vowel /o/ in Seoul Korean has been undergoing a sound change by altering the acoustic weighting of F2 and F1. Studies documented that this on-going change redefined the nature of a /o/-/u/ contrast as F2 differences rather than as F1 differences. The current study examined two cognitive factors namely executive function capacity (EF) and autistic traits, in terms of their roles in explaining who in speech community would adapt new acoustic forms of the target vowels, and who would retain the old forms. The participants, 55 college students speaking Seoul Korean, produced /o/ and /u/ vowels in isolated words; and completed three EF tasks (Digit N-Back, Stroop, and Trail-Making Task), and an Autism screening questionnaire. The relationships between speakers' cognitive task scores and their utilizations of F1 and F2 were analyzed using a series of correlation tests. Results yielded a meaningful relationship in participants' EF scores interacting with gender. Among the females, speakers with higher EF scores were better at retaining F1, which is a less informative cue for females since they utilized F2 more than they did F1 in realizing /o/ and /u/. In contrast, better EF control among male speakers was associated with more use of the new cue (F2) where males still utilized F1 as much as F2 in the production of /o/ and /u/ vowels. Taken together, individual differences in acoustic realization can be explained by individuals' cognitive abilities, and their progress in the sound change further predicts that cognitive ability influences the utilization of acoustic information which is non-primary to the speaker.

• 한국정보과학회논문지:컴퓨팅의 실제 및 레터
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• 제16권10호
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• pp.1000-1004
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• 2010

형태소 품사 태거는 언어처리 시스템의 전처리기로 많이 활용되고 있다. 형태소 품사 태거의 성능 향상은 언어처리 시스템의 전체 성능 향상에 크게 기여할 수 있다. 자동번역과 같이 복잡도가 놓은 언어처리 시스템은 최근 특정 도메인에서 좋은 성능을 나타내는 시스템을 개발하고자 한다. 본 논문에서는 기존 일반도메인에서 학습된 LHMM이나 HMM 기반의 영어 형태소 품사 태거를 특정 도메인에 적응하여 높은 성능을 나타내는 방법을 제안한다. 제안하는 방법은 특정도메인에 대한 원시코퍼스를 이용하여 HMM이나 LHMM의 기학습된 전이확률과 출력확률을 도메인에 적합하게 반자동으로 변경하는 도메인 적응 방법이다. 특허도메인에 적응하는 실험을 통하여 단어단위 태깅 정확률 98.87%와 문장단위 태깅 정확률 78.5%의 성능을 보였으며, 도메인 적응하지 않은 형태소 태거보다 단어단위 태깅 정확률 2.24% 향상(ERR: 6.4%)고 문장단위 태깅 정확률 41.0% 향상(ERR: 65.6%)을 보였다.

• Clinical and Experimental Pediatrics
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• 제48권9호
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• pp.924-928
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• 2005

목 적 : 최근에 말 언어 지연 소아의 치료효과에 대해서는 논란의 여지가 있다. 본 연구는 말 언어 지연을 보인 소아의 임상적인 특징과 6개월 동안의 언어 치료 후 원인질환에 따른 예후를 알아보고자 시도하였다. 방 법 : 2000년 1월부터 2004년 3월까지 가톨릭대학교 의정부 성모병원 소아과에 말 언어 지연을 보여 내원한 환아 중 6개월 동안 말 언어 치료를 받은 56명의 소아를 대상으로 후향적으로 조사하였다. 결 과 : 대상 환아 56명의 질환별 분포는 발달성 언어 장애가 66.1%로 가장 많았고 구조적 이상 19.6%, 정신 지체 12.5%, 청력 이상 1.8% 순이었다. 남녀 비는 4.6 : 1이었으며, 환아의 연령별 분포는 47개월 이상이 가장 많았다. 의미 있는 첫 단어의 평균 출현 시기는 15.9개월이었다. 평균 재태기간은 39.8주로 만삭아 96.4%, 미숙아 3.6%으로 만삭아가 많았다. 형제 순서는 첫째 51.8%, 둘째 24명, 셋째 7.1%으로 첫째가 가장 많았다. 6개월간의 언어 치료 후 추적 검사 결과, 발달성 언어 장애아의 경우 32.4%가 정상적인 언어 발달을 보였다. 정신 지체의 경우 추적검사 결과 모두에서 언어 지연이 지속되었다. 구조적 이상 11명 중 5명이 정상적인 언어 발달을 보였다. 결 론 : 언어 지연을 주소로 내원한 소아의 연령이 늦은 것은 이 지역 언어 지연 소아를 대상으로 한 언어 발달 선별 검사가 필요함을 시사하는 것이다.

• 한국융합학회논문지
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• 제13권1호
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• pp.313-323
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• 2022

본 연구에서는 COVID-19시대에 비대면 서비스가 확대되고 있는 상황에서 마비말장애의 재활을 위한 디지털 치료제 기반의 커뮤니티케어 방안을 모색하고자 하였다. 이를 위하여 병원, 언어치료기관, 사회복지기관에서 근무하는 전문가들을 대상으로 질적연구를 수행하였고, 연구 결과 3개의 주제와 9개의 하위주제, 18개의 의미단위가 도출되었다. 분석결과에 근거한 디지털 치료제 기반의 커뮤니티케어 모델은 원격진단, 원격치료, 재활훈련 프로그램 제공, 동료지원가들의 지지, 임상적 지원, 의사소통 지원, 심리사회적 중재, 케어플랜 서비스 등 9가지 유형으로구성되었다. 본 연구는 디지털 치료제를 활용한 보건-복지 연계서비스를 위한 기초자료와 다학제간 협력에 기반한 공유케어 계획 수립의 가이드라인을 제공할 수 있을 것이다.

• 한국산학기술학회논문지
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• 제16권7호
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• pp.4798-4804
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• 2015

본 연구는 지역사회에 거주하는 치매환자에게 인지작업치료 프로그램을 적용한 후 인지기능과 우울, 수부기능에 대한 효과를 알아보고자 하였다. 연구방법은 2012년 9월에서 12월까지 일개광역지역 소재 요양원에 입소한 환자를 중심으로 실험군 12명, 대조군 9명의 전체 21명을 대상으로 10주 동안 신체활동을 포함한 현실인식 훈련, 점진적 단어소실기법, 수공예를 이용한 작업치료 중심의 인지프로그램을 실시하였다. 실험군에서 인지기능, 우울정도, 수부근력과 수부조화운동에서 치료 전에 비해 치료 후에 유의한 호전을 보였다(p<.05). 그 결과 본 인지작업치료프로그램은 치매환자에서 우울감소와 수부근력 및 수부조화운동, 인지기능 회복을 위한 유용한 중재적 방법으로 생각된다. 치매는 주로 증상을 호전시키는 것이 목적이기 때문에 조기발견과 조기중재를 통해서 환자의 잔존기능 유지와 사회복귀를 위한 다양한 인지 훈련 프로그램의 개발이 필요하다.

• The Journal of Advanced Prosthodontics
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• 제3권2호
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• pp.106-109
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• 2011

Oral cancer treatment involves the surgical removal of all or part of the maxilla, leaving the patient with a defect that compromises the integrity and function of the oral cavity. The postoperative restoration of esthetics, deglutition, and speech shortens recovery time in the hospital and expedites the patient's return to the community as a functioning member. The surgical obturator is the proven treatment option in such situations. This article describes a simple technique to fabricate a surgical obturator that restores patient's original dentition and facial and palatal tissue form. The obturator fabricated with this technique utilizes the vacuum formed index of patient's original tissue form and duplicated partly in heat and partly in auto polymerizing acrylic resin. Duplication of the original tissue form helps patient to minimize the immense physiological trauma immediately after the surgical resection. The obturator fabricated with this technique supports soft tissues after surgery and minimizes scar contracture and disfigurement, and thus may have a positive effect on the patients' psychology.