• Title/Summary/Keyword: Non-mediated

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The Effect of Return Policies on Return Behavior in Online Fashion Shopping - Focusing on the Mediating Effect of Purchasing Orientation Considering Returns - (온라인 패션 쇼핑 시 반품 정책이 반품 행동에 미치는 영향 - 반품 고려 구매 성향의 매개 효과를 중심으로 -)

  • Jae Im Jang
    • Fashion & Textile Research Journal
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    • v.25 no.3
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    • pp.280-290
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    • 2023
  • As consumers are increasingly shopping online for fashion products, their return behavior is also increasing. Regarding the factors affecting return behavior, this study explores the effect of the purchasing orientation considering returns that are derived from bracketing purchase behavior, monetary lenient return policies, and non-monetary lenient return policies. Additionally, this study examines the effect of monetary/non-monetary lenient return policies on return behavior, mediated by the purchasing orientation considering returns. This study was conducted through an online survey and 238 data were collected and used for analysis. Two research models were designed for each independent variable of monetary lenient return policies, and non-monetary lenient return policies, and the path of the research model was analyzed using Process Macro 4.0. The study found that the sub-dimensions of return policy - monetary or non-monetary return policies - had different effects on return behavior through purchasing orientation considering returns. Monetary lenient return policies had a positive direct effect on return behavior, and purchasing orientation considering returns mediated the effect of the monetary lenient return policies on return behavior. However, the non-monetary lenient return policies only positively and significantly directly affected return behavior. The findings of this study contribute to understanding consumers' purchasing orientation considering returns. Furthermore, from the effect of the return policy on return behavior, the results are valuable as they can help fashion marketers establish a return strategy.

Changes in Lymphocyte Subsets following Open-Heart Surgery ; A Study for Changes in Lymphocyte Subsets (개심술 환자에서의 면역기능의 변화;T lymphocyte subset의 변화에 대한 고찰)

  • 황재준
    • Journal of Chest Surgery
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    • v.25 no.11
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    • pp.1185-1191
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    • 1992
  • Cell mediated immunity is depressed following surgical procedure and the degree of immunosuppression is directly related to the magintude of the procedure, blood transfusion, and length of operation. So we would expect cardiac operations to be highly immunosuppressive, although little is konwn about their immunosuppressive effect. The nearly complete consumption of complement factors and decreased levels of IgM and IgG resulting in an impaired opsonizing capacity. Additionally, peripheral blood mononuclear cell counts including T-and B-lymphocytes and T-cell subsets are reduced. Depression of cell-mediated immunity following open-heart surgery is potentially detrimental because it could increase the susceptability of patients to viral and bacterial infection. We reviewed 20 patients after cardiac operation to search for changes in peripheral blood lymphocyte subsets. Lymphocyte subsets were measured by flow cytometer and the preoperative values of lymphocyte subsets were compared with those from the first, fourth, and seventh days after operation. After cardiac operation, total mumbers of T lymphocyte was severely depressed on the first postoperative day and returned to the preoperative level by the seventh day after operation. CD3, CD4, and CD8 lymphocytes were decreased on the first postoperative day and returned to the preoperative level by the seventh day also. There was four cases of wound infection and these patients had increased CD4 lympocyte and more decreased CD19 lymphocyte compared with the non-infected group. It is concluded from these data that cell-mediated immunity is significantly depressed for at least one week following open-heart surgery and this result was closely related to the postoperative infection.

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Dose-Dependent Inhibition of Melanoma Differentiation-Associated Gene 5-Mediated Activation of Type I Interferon Responses by Methyltransferase of Hepatitis E Virus

  • Myoung, Jinjong;Min, Kang Sang
    • Journal of Microbiology and Biotechnology
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    • v.29 no.7
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    • pp.1137-1143
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    • 2019
  • Hepatitis E virus (HEV) accounts for 20 million infections in humans worldwide. In most cases, the infections are self-limiting while HEV genotype 1 infection cases may lead to lethal infections in pregnant women (~ 20% fatality). The lack of small animal models has hampered detailed analysis of virus-host interactions and HEV-induced pathology. Here, by employing a recently developed culture-adapted HEV, we demonstrated that methyltransferase, a non-structural protein, strongly inhibits melanoma differentiation-associated gene 5 (MDA5)-mediated activation of type I interferon responses. Compared to uninfected controls, HEV-infected cells display significantly lower levels of $IFN-{\beta}$ promoter activation when assessed by luciferase assay and RT-PCR. HEV genome-wide screening showed that HEV-encoded methyltransferase (MeT) strongly inhibits MDA5-mediated transcriptional activation of $IFN-{\beta}$ and $NF-{\kappa}B$ in a dose-responsive manner whether or not it is expressed in the presence/absence of a tag fused to it. Taken together, current studies clearly demonstrated that HEV MeT is a novel antagonist of MDA5-mediated induction of $IFN-{\beta}$ signaling.

Magnetic Resonance-Guided Focused Ultrasound : Current Status and Future Perspectives in Thermal Ablation and Blood-Brain Barrier Opening

  • Lee, Eun Jung;Fomenko, Anton;Lozano, Andres M.
    • Journal of Korean Neurosurgical Society
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    • v.62 no.1
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    • pp.10-26
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    • 2019
  • Magnetic resonance-guided focused ultrasound (MRgFUS) is an emerging new technology with considerable potential to treat various neurological diseases. With refinement of ultrasound transducer technology and integration with magnetic resonance imaging guidance, transcranial sonication of precise cerebral targets has become a therapeutic option. Intensity is a key determinant of ultrasound effects. High-intensity focused ultrasound can produce targeted lesions via thermal ablation of tissue. MRgFUS-mediated stereotactic ablation is non-invasive, incision-free, and confers immediate therapeutic effects. Since the US Food and Drug Administration approval of MRgFUS in 2016 for unilateral thalamotomy in medication-refractory essential tremor, studies on novel indications such as Parkinson's disease, psychiatric disease, and brain tumors are underway. MRgFUS is also used in the context of blood-brain barrier (BBB) opening at low intensities, in combination with intravenously-administered microbubbles. Preclinical studies show that MRgFUS-mediated BBB opening safely enhances the delivery of targeted chemotherapeutic agents to the brain and improves tumor control as well as survival. In addition, BBB opening has been shown to activate the innate immune system in animal models of Alzheimer's disease. Amyloid plaque clearance and promotion of neurogenesis in these studies suggest that MRgFUS-mediated BBB opening may be a new paradigm for neurodegenerative disease treatment in the future. Here, we review the current status of preclinical and clinical trials of MRgFUS-mediated thermal ablation and BBB opening, described their mechanisms of action, and discuss future prospects.

Immunopathology and Immunotherapy of Inflammatory Skin Diseases

  • Ahreum Song;Sang Eun Lee;Jong Hoon Kim
    • IMMUNE NETWORK
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    • v.22 no.1
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    • pp.7.1-7.20
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    • 2022
  • Recently, there have been impressive advancements in understanding of the immune mechanisms underlying cutaneous inflammatory diseases. To understand these diseases on a deeper level and clarify the therapeutic targets more precisely, numerous studies including in vitro experiments, animal models, and clinical trials have been conducted. This has resulted in a paradigm shift from non-specific suppression of the immune system to selective, targeted immunotherapies. These approaches target the molecular pathways and cytokines responsible for generating inflammatory conditions and reinforcing feedback mechanisms to aggravate inflammation. Among the numerous types of skin inflammation, psoriasis and atopic dermatitis (AD) are common chronic cutaneous inflammatory diseases. Psoriasis is a IL-17-mediated disease driven by IL-23, while AD is predominantly mediated by Th2 immunity. Autoimmune bullous diseases are autoantibody-mediated blistering disorders, including pemphigus and bullous pemphigoid. Alopecia areata is an organ-specific autoimmune disease mediated by CD8+ T-cells that targets hair follicles. This review will give an updated, comprehensive summary of the pathophysiology and immune mechanisms of inflammatory skin diseases. Moreover, the therapeutic potential of current and upcoming immunotherapies will be discussed.

Cultural Values, Fashion Involvement and Consumers' Global-Mindedness

  • Lee, Kyu-Hye
    • The International Journal of Costume Culture
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    • v.7 no.1
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    • pp.58-69
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    • 2004
  • This study generated a framework to help academicians understand consumers' cultural values and global-mindedness Especially, this study affirmed the importance of fashion involvement in evoking global-mindedness when consumers have strong traditional values. A conceptual model with non-traditional and traditional values as exogenous variables, global-mindedness as endogenous variable and fashion involvement as mediating variable were created for the study. Data from 224 female college students were analyzed for empirical study. Results indicated that college students showed higher level of non-traditional values than traditional values. Non-traditional values had significant direct influence on global-mindedness whereas traditional values did not have significant influence. Traditional values as well as non-traditional had significant influence on fashion involvement. Fashion involvement significantly affected global-mindedness. Both non-traditional values and traditional values had significant positive indirect effects on global-mindedness mediated by fashion involvement.

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A Study on Mediating Effect of Customer Satisfaction and Attitudinal Loyalty between the Brand Image and Behavioral loyalty in Coffeeshops -Focusing on Capital Area and Non-Capital Area- (커피전문점의 브랜드이미지와 행동적충성도 간 고객만족과 태도적충성도의 매개효과에 관한 연구 - 수도권지역과 수도권이외지역을 중심으로 -)

  • Kang, Byong-Nam;Moon, Sung-Sik
    • Culinary science and hospitality research
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    • v.20 no.1
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    • pp.205-219
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    • 2014
  • The purpose of this study examines the mediating effect of Customer Satisfaction and Attitudinal Loyalty on Capital area and Non-capital area coffeeshops. In order to meet its purpose, We surveyed 290 customers who visited coffeeshops in Capital area and Non-Capital area. The research results may be summarized. First, Customer Saisfaction with a coffee shop played a mediating role between Band Image and Attitudinal Loyalty. Especially, It Fully-mediated between Brand Image and Attitudinal Loyalty in Non-Capital area. Second, Attitudinal Loyalty to a coffee shop played a mediating role between Customer Satisfaction and Behavioral Loyalty. In particular, It Fully-mediated between Customer Satisfaction and Behavioral Loyalty.

Effects of non-commissioned Officers' Role Stress on Burnout, Depression, and Turnover Intention (부사관의 역할스트레스가 소진, 우울, 이직의도에 미치는 영향)

  • Lee, Jayoung
    • The Journal of the Korea Contents Association
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    • v.15 no.4
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    • pp.303-315
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    • 2015
  • This study aimed to examine structural relationship among role stresses (i.e., role conflict, role ambiguity), burnout, depression, and turnover intention among non-commissioned officers. A total 299 non-commissioned officers were participated in this study. Correlation analysis through SPSS WIN 18.0 and SEM through Amos 20.0 were conducted. The results showed that role stresses were significantly positive correlated with burnout, depression, and turnover intention. In addition, it was found that burnout mediated partially between role conflict and turnover intention. It was also revealed that burnout mediated fully between role ambiguity and depression and between role ambiguity and turnover intention as well as between role conflict and depression. From above the results, the implications of this study was discussed in terms of the necessity for building strategy to decrease turnover intention and depression of non-commissioned officers. Finally, limitations and suggestions for further researches were discussed.

MOLECULAR TARGETS IN SIGNALING PATHWAYS MEDIATING ANTI-TUMOR EFFECTS OF NON-STEROIDAL ANTI-INFLAMMATORY DRUGS (NSAIDs)

  • Hwang, Daniel
    • Proceedings of the Korean Society of Toxicology Conference
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    • 2001.05a
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    • pp.14-21
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    • 2001
  • Many epidemiological studies have revealed that the use of aspirin or other non-steroidal anti-inflammatory drugs (NSAIDs) can reduce the risk of colon cancer. Since the well-documented pharmacological action of aspirin and other NSAIDs is the inhibition of cyclooxygenase [COX, the rate-limiting enzyme in prostaglandin (PG) biosynthesis], it has been inferred that the beneficial effect of NSAIDs may be mediated through the inhibition of PG biosynthesis.(omitted)

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Diagnosis and management of neurogenic orthostatic hypotension

  • Woohee Ju;Dong In, Sinn
    • Annals of Clinical Neurophysiology
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    • v.25 no.2
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    • pp.66-77
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    • 2023
  • Orthostatic hypotension is a sustained and pathological drop in blood pressure upon standing. Orthostatic hypotension can be due to non-neurogenic conditions or autonomic disorders. Impaired baroreflex-mediated vasoconstriction and insufficient release of norepinephrine play key roles in the pathophysiology of neurogenic orthostatic hypotension. Its common symptoms mainly related to inadequate cerebral blood flow include dizziness, lightheadedness, and syncope. It is crucial to differentiate neurogenic orthostatic hypotension from non-neurogenic orthostatic hypotension. For the management of neurogenic orthostatic hypotension, physicians should implement non-pharmacological methods and, if possible, reverse combined non-neurological conditions. Depending on severity of symptoms, pharmacological intervention may be tried after or with non-pharmacological methods. Its management should be individualized based on intensity of symptoms, comorbid conditions, drug side effects, and etiology. In this review, we discuss the definition, pathophysiology, clinical approach, and management of neurogenic orthostatic hypotension.