• 한국환경생태학회지
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• 제29권1호
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• pp.7-13
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• 2015

To examine the relationship between competition and environmental factors, the germlings of Ascophyllum nodosum (L) Le Jolis and Fucus vesiculosus L. were cultured in monocultures and mixtures of the two species under two different exposure and nutrient levels. Both intra- and inter-specific competition were examined in comparison of the mortality and growth of germlings in monocultures and mixtures of the two species. The mortality of germlings increased with increasing density and emergence periods both in the monoculture and mixtures of the two species, and the mortality of Ascophyllum was significantly higher than that of Fucus both in submerged and emerged treatments. The growth of germlings of both species reduced with increasing density but F. vesiculosus always grew faster than Ascophyllum. The values of log output ratio were more than 0.1, indicating that Fucus 'won' in the competitive battles with Ascophyllum under two nutrient- and air-exposure levels. Log output ratio was greater in high than in low nutrients, indicating that the growth of Fucus is more enhanced than that of Ascophyllum in high nutrients. In the present study, the outcome of inter specific competition between germlings of Fucus vesiculosus and Ascophyllum nodosum was slightly altered by duration of emergence and nutrient concentration, but not to such an extent as to change the outcome.

• Acta Via Serica
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• 제3권1호
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• pp.43-56
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• 2018

Religion and new media are two important factors in contemporary Middle Eastern societies. Media is seen as a relatively newcomer while religion has been and remains an old and core component of the fabric of societies in this region. This article is an attempt to examine the encounter of these two phenomena in the Middle East. It will try to explore the variety of ways by which new media have served religion both positively and negatively, and how religion has taken position for and against media in Middle Eastern countries in general and in the Iranian case in particular. It is also the purpose of this article to look at the different aspects of this relationship between media and religion, analyzing how one affected the other, and how this interaction affected society. It is argued that the outcome of the interaction between religion and media has had a great impact on shaping the social and political culture of the countries in this region including Iran. The dimensions of this impact will determine the outcome of the clash between modernity and tradition in the region.

• The Journal of Asian Finance, Economics and Business
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• 제8권4호
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• pp.625-633
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• 2021

Bangladesh's growing foreign aid has sparked controversy over whether it affects the country's economic performance. This review assesses foreign aid's influence on the country's economic growth with annual data covering the 1989-2018 period. The Autoregressive Distributed Lag (ARDL) model is applied to achieve the research objective, and the empirical results indicate a substantial and robust impact of foreign assistance on economic growth. The outcome further reveal that domestic investment also contributes significantly to the country's economic evolution. However, trade openness plays a substantial positive role in the short run, although the impact is immaterial in the long run. The empirical findings indicate that the association between aid, domestic investment, and growth has a confident meaningful effect at 1 per cent level in the long run, whereas aid influences more than domestic investment. However, in the short run, aid, domestic investment, trade openness, and growth show positive and noteworthy response also at 1 percent level. This review undertakes a detailed analysis about the country's economic growth, and grounded on its outcome, this work suggests that focus should be placed more on creating domestic investment, promoting more export, and allocation of aid should be determined by the relative needs of the country.

• Korean Journal of Health Education and Promotion
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• 제3권1호
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• pp.83-98
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• 2001

Although periodic health examination has been one of the most common practices of preventive medicine, its effect on modification of risk behavior has been seldom assessed. Thus, this study attempted to demonstrate the influence of a health examination on modification of cardiovascular disease related health risk behaviors such as smoking, physical inactivity, and obesity. Data of 893 adults were derived from two types of a popular and highly acclaimed health examination program. With a conceptual model constructed using Persuasive Communication variables, McNemar tests examined Source-Outcome association, hypothesizing that different health examination programs would yield different levels of behavior change in smoking, physical inactivity, and obesity. No significant behavior change was found in any of the two health examination programs. Instead, previously established Receiver-Outcome relationship was reconfirmed by logistic regression modeling where gender was the most prominent predictor of all three behaviors. Men were more likely to be current smokers (OR=0.029), exercisers (OR=2.629), and obese (OR=0.237). The importance of followups after health examination is highly stressed as well as that of gender-specific health education strategies. This study recommends applying the social-ecological approaches in health examination, which emphasizes the support and collaboration at individual, family, organizations, community, and policy level to improve health. Long term and qualitative evaluation of health examination may provide more foundation for increasing the effectiveness of health education and communication in health examinations.

• 기술혁신학회지
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• 제16권3호
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• pp.754-783
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• 2013

본 연구는 최근의 대학기술이전 사례들을 활용하여 대학에서 개발된 기술에 대한 기술가치평가의 신뢰성을 향상시키기 위한 실증적인 접근방안을 제안하고자 하는 목적으로 수행되었다. 연구를 위해 대학의 내부역량관련 요인들과 기술분야별 특성에 관한 요인들이 대학기술이전 성과에 미치는 영향에 관해 조사하였다. 분석결과 최근 대학별 기술이전 성과의 기술분야별 분포는 크게 IT 및 NT 분야의 기술이전이 우세한 유형과 BT 및 기타분야의 기술이전이 우세한 유형으로 나눌 수 있었다. 또한 특허출원건수와 기술사업화 인력수가 기술이전 성과에 정의 영향을 미치는 가운데 기술이전 성과의 기술분야별 분포유형이 조절작용을 하는 것으로 나타났다. 이러한 분석결과는 대학의 기술개발역량 및 기술확산역량이 기술가치평가 전 영역에 직간접적으로 연관되어 있다는 점을 감안하면 이들과 관련된 요인들과 기술분야별 특성에 관련된 요인들을 활용하여 대학기술의 기술가치평가에 관한 신뢰성을 보다 향상시킬 수 있을 가능성을 시사한다.

• Journal of Korean Neurosurgical Society
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• 제56권2호
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• pp.121-129
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• 2014

Objectives : Patients with cervical ossification of posterior longitudinal ligament (OPLL) are susceptible to cord injury, which often develops into myelopathic symptoms. However, little is known regarding the prognostic factors that are involved in minor trauma. We evaluated the relationship between minor trauma and neurological outcome of OPLL and investigated the prognostic factors with a focus on compressive factors and intramedullary signal intensity (SI). Methods : A total of 74 patients with cervical myelopathy caused by OPLL at more than three-levels were treated with posterior decompression surgeries. We surveyed the space available for spinal cord (SAC), the severity of SI change on T2-weighted image, and diabetes mellitus (DM). The neurological outcome using Japanese Orthopedic Association (JOA) scale was assessed at admission and at 12-month follow-up. Results : Among the variables tested, preoperative JOA score, severity of intramedullary SI, SAC, and DM were significantly related to neurological outcome. The mean preoperative JOA were $11.3{\pm}1.9$ for the 41 patients who did not have histories of trauma and $8.0{\pm}3.1$ for the 33 patients who had suffered minor traumas (p<0.05). However, there were no significant differences in the recovery ratios between those two groups. Conclusions : Initial neurological status and high intramedullary SI in the preoperative phase were related to poorer postoperative outcomes. Moreover, the patients with no histories of DM and larger SACs exhibited better improvement than did the patients with DM and smaller SACs. Although the initial JOA scores were worse for the minor trauma patients than did those who had no trauma prior to surgery, minor trauma exerted no direct effects on the surgical outcomes.

• 정보학연구
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• 제7권2호
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• pp.7-17
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• 2004

학업 성취는 긍정적인 측면에서 설명하면 학습 목표달성과 연관되어 이루어지는 교육적 기대치를 향상시킬 수 있다. 본 연구의 목적은 학업 성취에 관련된 여러 가지의 변수 관계와 관련된 요인을 분석하고 탐색하는 데 있다. 즉 과거의 성취도, 정보기술 활용 능력, 학업 수행자의 성과 기대치, 학업성취 목표 달성에 관한 발전단계를 연구한다. 본 연구는 정보기술에 기반하여 학업 성취도를 확인하는 발전단계에 있어서의 효과분석에 초점을 두고 있으며 본 연구에 참가한 참가자들에게 본인들의 기대치 척도, 정보기술 활용능력, 정보기술 능력시험, 기초지식 설문지를 작성케 하여 그 결과를 분석하였다. 경로 모형 결과를 기반으로 하여 학생들의 학업 성취도가 지난 과거의 성취도와 관련이 있다는 것에 연구의 초점을 두었다. 학업성취를 위한 발전단계에 관한 연구결과는 학업성취가 학업의 달성 수준을 등급화 하여 목표 달성의 정도를 파악하고 정보기술 능력이 학업성취도에 영향이 있다는 것을 제시한다. 현재의 연구 결과에 의하면, 과거 성취도에 대한 변수가 성과 기대치에 영향을 미친다는 것에 초점을 맞추어 조사하였으나 학업성취도를 예측하는 데에는 성공하지 못하였다.

• Journal of Chest Surgery
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• 제49권sup1호
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• pp.20-27
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• 2016

Background: This study analyzed the association between the volume of heart surgeries and treatment outcomes for hospitals in the last five years. Methods: Hospitals that perform heart surgeries were chosen throughout Korea as subjects using from the Health Insurance Review and Assessment Service. The treatment outcome of the heart surgeries was defined as the mortality within 30 postoperative days, while the annual volume of the surgeries was categorized. Logistic regression was used as the statistical analysis method, and the impacts of the variables on the heart surgery treatment outcomes were then analyzed. Results: The chance of death of patients who received surgery in a hospital that performed 50 or more surgeries annually was noticeably lower than patients receiving operations from hospitals that performed fewer than 50 surgeries annually, indicating that the chance of death decreases as the annual volume of heart surgeries in the hospital increases. In particular, the mortality rate in hospitals that performed more than 200 surgeries annually was less than half of that in hospitals that performed 49 or fewer surgeries annually. Conclusion: These results indicate that accumulation of a certain level of heart surgery experience is critical in improving or maintaining the quality of heart surgeries. In order to improve the treatment outcomes of small hospitals, a support policy must be implemented that allows for cooperation with experienced professionals.

• Journal of Korean Neurosurgical Society
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• 제54권4호
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• pp.296-301
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• 2013

Objective : We conducted a retrospective study examining the outcomes of intracerebral hemorrhage (ICH) in patients with chronic kidney disease (CKD) to identify parameters associated with prognosis. Methods : From January 2001 to June 2008, we treated 32 ICH patients (21 men, 11 women; mean age, 62 years) with CKD. We surveyed patients age, sex, underlying disease, neurological status using Glasgow Coma Scale (GCS), ICH volume, hematoma location, accompanying intraventricular hemorrhage, anti-platelet agents, initial and 3rd day systolic blood pressure (SBP), clinical outcome using the modified Rankin Scale (mRS) and complications. The severity of renal functions was categorized using a modified glomerular filtration rate (mGFR). Multifactorial effects were identified by regression analysis. Results : The mean GCS score on admission was $9.4{\pm}4.4$ and the mean mRS was $4.3{\pm}1.8$. The overall clinical outcomes showed a significant relationship on initial neurological status, hematoma volume, and mGFR. Also, the outcomes of patients with a severe renal dysfunction were significantly different from those with mild/moderate renal dysfunction (p<0.05). Particularly, initial hematoma volume and sBP on the 3rd day after ICH onset were related with mortality (p<0.05). However, the other factors showed no correlation with clinical outcome. Conclusion : Neurological outcome was based on initial neurological status, renal function and the volume of the hematoma. In addition, hematoma volume and uncontrolled blood pressure were significantly related to mortality. Hence, the severity of renal function, initial neurological status, hematoma volume, and uncontrolled blood pressure emerged as significant prognostic factors in ICH patients with CKD.

• 응용통계연구
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• 제30권5호
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• pp.615-632
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• 2017

무작위 통제시험에서와 달리, 관찰연구에서는 편향되지 않은 인과관계를 추론하기 위한 통계적 전략이 필요하다. 최근 잠재범주분석(latent class analysis; LCA)에서 처치의 평균인과효과(average causal effect; ACE)를 추정하기 위한 새로운 방법들이 제안되었으나 이러한 방법들은 실제 데이터를 분석하는 응용 연구에 초점이 맞춰있다. 따라서 ACE의 참값을 알 수 없어 추정 방법의 성능을 평가하는 데 한계가 있다. 본 연구에서는 Park과 Chung(2014)이 제안한 방법을 개선하여, 다항범주형 처치변수가 잠재변수인 상황에서 다항범주형 결과변수에 미치는 인과효과 추정방법을 제안하고 처치변수와 결과변수가 잠재변수 또는 관측변수를 포함하는 여러 상황에서 본 연구가 제안한 인과효과 추정방법의 성능을 모의실험연구를 통하여 평가하고자 한다. 더불어 'National Longitudinal Study of Adolescents Health'자료를 사용하여 미국 여성 청소년 성장과 약물사용에 대한 인과효과를 추론하고자 한다.