• Asia pacific journal of information systems
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• 제31권4호
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• pp.472-490
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• 2021

The detection of products with manipulated reviews has received widespread research attention, given that a truthful, informative, and useful review helps to significantly lower the search effort and cost for potential customers. This study proposes a method to recognize products with manipulated online customer reviews by examining the sequence of each review's sentiment, readability, and rating scores by product on randomness, considering the example of a Russian online retail site. Additionally, this study aims to examine the association between brand awareness and existing manipulation with products' reviews. Therefore, we investigated the difference between well-known and unknown brands' products online reviews with and without manipulated reviews based on the average star rating and the extremely positive sentiment scores. Consequently, machine learning techniques for predicting products are tested with manipulated reviews to determine a more useful one. It was found that about 20% of all product reviews are manipulated. Among the products with manipulated reviews, 44% are products of well-known brands, and 56% from unknown brands, with the highest prediction performance on deep neural network.

• Journal of Korean Biological Nursing Science
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• 제26권2호
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• pp.83-98
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• 2024

Purpose: This study investigated how interprofessional education (IPE) related to medication for undergraduate healthcare students, including nursing students, has been designed and conducted. Furthermore, the outcomes of these IPE programs were evaluated. Methods: A scoping review was performed to understand the content and methods of IPE on medication for undergraduate healthcare students, including nursing students. A literature search was done using PubMed, Cumulative Index to Nursing and Allied Health Literature, Embase, Research Information Sharing Service, and Korean Nursing Database in English between January 2000 and December 2022. In total, 14 papers were selected and reviewed. Results: Eleven research studies were conducted on the implementation of one-time IPE on medication safety or errors. Among them, six studies focused on providing IPE to nursing students alongside medical and pharmacy students, while three studies targeted nursing and medical students, and two studies focused on nursing and pharmacy students. The most commonly employed educational method was simulation, which was utilized in 12 studies. All studies consistently reported a positive impact on attitudes toward IPE and effective communication. Additionally, five studies evaluating medication knowledge reported improvements in participants' understanding of drugs. Conclusion: The effects of IPE related to medication for undergraduate nursing students have been confirmed. It is necessary to introduce IPE in the field of pharmacology.

• 한국컴퓨터정보학회논문지
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• 제15권1호
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• pp.149-157
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• 2010

최근에 인터넷 사용이 점차 활발해 짐에 따라, 다른 사람들이 인터넷 상에 올려놓은 의견정보를 참조하고자 하는 수요가 높아지고 있다. 하지만, 이러한인터넷상에존재하는의견들은개개의웹사이트들에만존재하여, 이러한 의견정보들을 사용하고자 할 경우에는 사용자가 일일이 이러한 개개의 모든 웹사이트를 수동으로 찾아보아야 하는 번거로움이 존재하는 문제점이 있다. 본 논문은 웹 콘텐츠에서의 통계기반 웹 마이닝(Web Mining)을 통한 의견 추출 및 분석 시스템에 관한 것으로, 인터넷 상에 존재하는 여러 웹사이트들에 흩어져 있는 웹문서에서 사용자 의견정보들을 자동으로 추출 및 분석한다. 또한, 긍정/부정 의견별로 실시간으로 검색 및 통계를 확인할 수 있는 의견정보 검색 서비스를 간편하게 제공할수 있으며, 의견정보 검색 사용자들은 특정 키워드에 대하여 다른 사용자들의 의견정보를 손쉽게 실시간으로 검색 및 모니터링(Monitoring)할 수 있는 시스템이다. 제안한 기법들은 기존의 다른 기법들과의 비교 실험을 수행하여 실제 성능이 우수함을 증명하였다. 성능 평가는 긍정/부정 의견정보를 추출하는 기능의 성능 평가를 실시하였다. 그 적용 사례로 대표적인 영화 리뷰 문장 실험 데이터를 대상으로 실험하고 그 결과를 분석하였다.

• 생물정신의학
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• 제22권2호
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• pp.47-54
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• 2015

In the past decade, structural, molecular, and functional changes in glial cells have become a major focus in the search for the neurobiological foundations of schizophrenia. Glial cells, consisting of oligodendrocytes, astrocytes, microglia, and nerve/glial antigen 2-positive cells, constitute a major cell population in the central nervous system. There is accumulating evidence of reduced numbers of oligodendrocytes and altered expression of myelin/oligodendrocyte-related genes that might explain the white matter abnormalities and altered inter- and intra-hemispheric connectivities that are characteristic signs of schizophrenia. Astrocytes play a key role in the synaptic metabolism of neurotransmitters ; thus, astrocyte dysfunction may contribute to certain aspects of altered neurotransmission in schizophrenia. Increased densities of microglial cells and aberrant expression of microglia-related surface markers in schizophrenia suggest that immunological/inflammatory factors are of considerable relevance to the pathophysiology of psychosis. This review describes current evidence for the multifaceted role of glial cells in schizophrenia and discusses efforts to develop glia-directed therapies for the treatment of the disease.

• 가정과삶의질연구
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• 제15권3호
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• pp.95-106
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• 1997

The purpose of this study was to develop an instrument which measures children's stress coping behaviors. The first 89 items were selected based on a literture review and a pilot study of 129 children with open questions. The final 75 items were selected using the data from subjects of 500 4th-5th and 6th grade children living in Seoul. The main study was conducted on March 5-10 1997. The data were analysis by frequencies percentages factor analysis and Cronbach's a. The resulting nine catagorical factors of 75 items in strument for children's stress coping behaviors were as fallows: positive revaluation of the situation emotional aggression problem-facing behavior information search for problem-solving emotion-vonvering behavior avoidance seeking spiritual support physical seperation for emotional relaxation emotional expression, The 9-factor 75-item scale explains 60.9% of children's stress coping behaviors and its value of Cronbach's a is 9.5.

• 척추신경추나의학회지
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• 제16권2호
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• pp.39-45
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• 2021

Objectives The purpose of this study was to assess the effect of fascia chuna therapy in the treatment of piriformis syndrome. Methods A literature search was conducted using 8 databases to identify all randomized controlled clinical trials (RCTs) that investigated fascia chuna therapy as a treatment for piriformis syndrome. The selected studies are analyzed the risk of bias through Cochrane risk of bias tool. Results Among 37 articles that were searched, 3 RCTs met our inclusion criteria and were included in this analysis. These studies demonstrated positive results of Fascia Chuna Therapy with respect to the reduction of pain scale and functional scale compared with other treatment methods. Conclusions Based on results, fascia chuna therapy could be effective in piriformis syndrome. However there are limitations that the number of selected studies was small and risk of bias was unclear. More well-designed RCTs are required to provide clearer evidence.

• 한국콘텐츠학회논문지
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• 제15권8호
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• pp.53-68
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• 2015

본 연구는 온라인 양면구전에 대한 실제적 파악을 통해 보다 현실성 있는 유형구분에 도움을 주는 것을 연구의 목적으로 하였다. 이를 위해 제품유형을 경험재와 탐색재로 분류한 후 총 402건의 온라인 리뷰를 수집하여 기술적 특성(방향성, 리뷰길이)과 내용 구조적 특성(제품편익, 정보제시방법)에 대해서 내용분석(Content Analysis)을 실시하였다. 연구 결과, 첫째, 양면구전의 방향성으로 긍정/부정, 부정/긍정, 긍정/부정/긍정, 부정/긍정/부정의 네 가지 유형이 관찰되었다. 둘째, 양면구전의 리뷰길이가 단면구전의 리뷰길이보다 긴 것으로 나타났으며, 제품편익에서는 단면과 양면 모두 혼합유형이 가장 높은 비율을 차지하는 것으로 나타났다. 셋째, 정보제시방법에서 단면구전은 총체적 표현방식이 압도적으로 많이 나타난 반면, 양면구 전에서는 혼합적, 분석적 표현방식도 상당히 높은 비율을 차지하는 것으로 나타났다. 넷째, 단면구전과 양면 구전 모두 정보제시 방법으로는 탐색재는 총체적 표현에 많이 치우친 반면, 경험재는 분석적, 혼합적 표현도 많이 사용하고 있는 것으로 나타났다. 이와 같이 본 연구는 온라인 구전의 유형화 기준 특히 양면구전의 유형화 기준에 초점을 맞추어 연구를 진행하였다. 본 연구의 내용분석 결과를 근거로 향후 여러 가지 인과적 연구가 가능할 것이라 판단된다.

• Safety and Health at Work
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• 제13권3호
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• pp.263-268
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• 2022

Health care workers (HCWs) are more than ten times more likely to be infected with coronavirus infectious disease 2019 (COVID-19) than the general population, thus demonstrating the burden of COVID-19 among HCWs. Factors that expose HCWs to a differentially high-risk of COVID-19 acquisition are important to elucidate, enable appropriate public health interventions to mitigate against high risk and reduce adverse outcomes from the infection. We conducted a systematic review and meta-analysis to summarize and critically analyze the existing evidence on SARS-CoV-2 risk factors among HCWs. With no geographical limitation, we included studies, in any country, that reported (i) the PCR laboratory diagnosis of COVID-19 as an independent variable (ii) one or more COVID-19 risk factors among HCWs with risk estimates (relative risk, odds ratio, or hazard ratio) (iii) original, quantitative study design, and published in English or Mandarian. Our initial search resulted in 470 articles overall, however, only 10 studies met the inclusion criteria for this review. Out of the 10 studies included in the review, inadequate/lack of protective personal equipment, performing tracheal intubation, and gender were the most common risk factors of COVID-19. Based on the random effects adjusted pooled relative risk, HCWs who reported the use of protective personal equipment were 29% (95% CI: 16% to 41%) less likely to test positive for COVID-19. The study also revealed that HCWs who performed tracheal intubations were 34% (95% CI: 14% to 57%) more likely to test positive for COVID-19. Interestingly, this study showed that female HCWs are at 11% higher risk (RR 1.11 95% CI 1.01-1.21) of COVID-19 than their male counterparts. This article presents initial findings from a living systematic review and meta-analysis, therefore, did not yield many studies; however, it revealed a significant insight into better understanding COVID-19 risk factors among HCWs; insights important for devising preventive strategies that protect them from this infection.

• 대한간호학회지
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• 제50권3호
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• pp.349-368
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• 2020

Purpose: This study aimed to identify parental factors associated with smartphone overuse in preschoolers. Methods: A systematic review was conducted according to PRISMA guidelines. Relevant studies published in peer-reviewed journals from 2009 to June 2019 were identified through systematic search in 10 electronic databases (PubMed, CINAHL, Cochrane Central, EMBASE, Web of Science, NDSL, KISS, KMbase, KoreaMed, and RISS). Standardized effect sizes were calculated to quantify the associations of parental factors with smartphone overuse in preschoolers using meta-analysis. Results: A total of 30 cross-sectional studies involving 7,943 participants met the inclusion criteria. The following were negatively correlated with smartphone overuse in preschoolers: mother's parenting self-efficacy (r=-.35), mother-child attachment (r=-.28), mother's positive parenting behavior (r=-.28), mother's positive parenting attitude (r=-.25), and father's parenting involvement (r=-.15). Further, maternal factors such as smartphone addiction tendency (r=.41), parenting stress (r=.40), negative parenting behavior (r=.35), negative parenting attitude (r=.14), smartphone usage time (r=.26), employment status (r=.18), and age (r=.12) were positively correlated with smartphone overuse in preschoolers. Conclusion: Several parental factors influence smartphone overuse in preschoolers. These findings emphasize the need to assess and enhance the parental factors identified in this study to prevent smartphone overuse in preschoolers. Accordingly, we recommend the development of preventive interventions to strengthen parent-related protective factors and mitigate risk factors.

• 대한물리의학회지
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• 제13권3호
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• pp.121-132
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• 2018

PURPOSE: This study was conducted to investigate the effects of type of exercise on neck disability, pain, and postural changes in subjects with forward head posture. METHODS: Two independent researchers conducted a search using KISS, RISS, DBpia (domestic), PubMed, OVID, and Science Direct (overseas) databases. We selected randomized controlled clinical trials by searching using the terms "forward head posture", "exercise therapy", and "therapeutic exercise". Studies published from 2007 to December 2017 were included. PEDro Scale was used to evaluate the quality of the selected studies, and meta-analysis was conducted using the CMA program. This review was registered at PROSPERO (CRD42018068633). RESULTS: Of the total 13768 studies searched, 17 were selected. Positive effects on neck disability were achieved with the base and biomechanical elements (ES=1.63, 95% confidence interval [CI] .49 to 2.75) as well as base, modulator, and biomechanical elements (ES=1.50, 95% [CI] .69 to 2.30). Neck pain improved with the base, modulator, and biomechanical elements (ES=1.96, 95% [CI] 1.08 to 2.82), while postural changes improved with biomechanical elements (ES=1.45, 95% [CI] .64 to 2.25). Additionally, type of exercise had a positive effect. CONCLUSION: The most effective exercises for neck disability are of the base and biomechanical elements, while the most effective types for neck pain are of the base, modulator, and biomechanical elements and the most effective exercise for posture is of biomechanical elements. Combined exercises targeting biomechanical elements were effective at treating disability, pain, and postural changes.