scholarly journals Cluster Analysis of Inhalant Allergens in South Korea: A Computational Model of Allergic Sensitization

2020 ◽  
Author(s):  
Dong-Kyu Kim ◽  
Young-Sun Park ◽  
Kyung-Joon Cha ◽  
Daeil Jang ◽  
Seungho Ryu ◽  
...  
Keyword(s):  
Cluster Analysis ◽  
South Korea ◽  
Computational Model ◽  
Allergic Sensitization ◽  
Inhalant Allergens

scholarly journals Association Between Allergen Sensitization and Anaphylaxis in Patients Visiting a Pediatric Emergency Department

2021 ◽  
Vol 9 ◽  
Author(s):  
Won Seok Lee ◽  
Lily Myung-Jin Cha ◽  
Man Yong Han ◽  
Kyung Suk Lee
Keyword(s):  
Immunoglobulin E ◽  
Allergic Sensitization ◽  
Pediatric Emergency ◽  
Allergen Sensitization ◽  
Severe Anaphylaxis ◽  
Specific Immunoglobulin E ◽  
Specific Immunoglobulin ◽  
Facial Edema ◽  
Inhalant Allergens ◽  
Symptoms And Signs

Background and Objectives: Anaphylaxis, a severe allergic disease, can be triggered by various causes. This study investigated the association between allergic sensitization and anaphylactic symptoms and the severity of anaphylaxis in children.Patients and Methods: A retrospective review of 107 pediatric patients with anaphylaxis was performed between January 1, 2015, and December 31, 2017; 74 patients underwent allergen testing for specific immunoglobulin E. Allergic sensitizations and associations with anaphylactic symptoms and severity were investigated.Results: Overall, 64 (86.5%) patients were sensitized to food or inhalant allergens. In children under 2 years of age, 90.5% were sensitized to food (P = 0.001); in those over 6 years of age, 84.6% were sensitized to inhalant allergens (P = 0.001). Milk sensitization was significantly associated with severe anaphylaxis (P = 0.036). The following symptoms showed significant associations with certain allergen sensitizations: facial edema with food; wheezing with milk; dyspnea with mite, etc. Certain allergen sensitizations presenting as risk factors for anaphylactic symptoms: wheat (adjusted odds ratio [aOR] = 4.644, P = 0.044) and nuts (aOR=3.614, P = 0.041) for wheezing, nuts (aOR=5.201, P = 0.026) for dyspnea, and milk (aOR=4.712, P = 0.048) for vomiting.Conclusion: The allergen sensitization status differed according to the age of the children experiencing anaphylaxis. The severity, symptoms, and signs of anaphylaxis differed depending on the allergen sensitization status.

Loyal Customer Behaviors: Identifying Brand Fans

2018 ◽  
Vol 46 (8) ◽  
pp. 1285-1303 ◽  
Author(s):  
Seong Ho Lee ◽  
Kyung Sik Jung
Keyword(s):  
Cluster Analysis ◽  
South Korea ◽  
Analysis Of Variance ◽  
Brand Loyalty ◽  
Business Administration ◽  
Marketing Program ◽  
Self Image ◽  
Loyal Customer ◽  
Image Congruence ◽  
Article Study

Using concepts of self-image congruence and involvement, we investigated whether existing customers can be considered brand fans and, if so, how to determine the behavior of brand fans in various situations. Participants were 180 students in a business administration marketing program in South Korea with strong brand loyalty. Cluster analysis was conducted using a 2 (high vs. low self-image congruence) × 2 (high vs. low involvement) analysis of variance and paired t tests were used to identify brand fans through fanship and switching intentions (Study 1). Then we investigated how participants' minds changed after being exposed to a negative article (Study 2) and a competitor's aggressive marketing (Study 3). We found that fans do exist for commercial brands and that, as assumed, image congruence and involvement are critical constructs. These results suggest that consideration of image congruence and involvement is necessary for businesses to secure and foster brand fans.

scholarly journals A Study on the Appropriateness of the Drought Index Estimation Method Using Damage Data from Gyeongsangnamdo, South Korea

Atmosphere ◽  
2021 ◽  
Vol 12 (8) ◽  
pp. 998
Author(s):  
Youngseok Song ◽  
Moojong Park
Keyword(s):  
Cluster Analysis ◽  
South Korea ◽  
Drought Index ◽  
Mean Squared Error ◽  
National Level ◽  
Standardized Precipitation Index ◽  
Estimation Method ◽  
Damage Data ◽  
And Cluster Analysis ◽  
Index Estimation

Drought is one of the disasters that causes the most extensive and severe damage. Therefore, drought prevention must be performed for administrative districts at the national level rather than the individual level. This study proposes a drought index estimation method for Gyeongsangnamdo, South Korea that evaluates its appropriateness through a comparison with damage data over several years. The standardized precipitation index (SPI) by duration was used as the drought index that was estimated for 13 rainfall stations located inside and outside Gyeonsangnam-do using the Thiessen method and cluster analysis. The SPI of Gyeongsangnamdo by duration based on the Thiessen method and cluster analysis for the years when drought damage occurred was compared with an SPI value of −2.0, which is the extreme drought condition, to determine its appropriateness. For the evaluation of the appropriateness, the performance indicators of the mean absolute deviation (MAD), mean squared error (MSE), and root mean square error (RMSE) were used. The analysis results showed that SPI by duration based on the cluster analysis method was more appropriate for damage data over many years than that based on the Thiessen method.

scholarly journals Clinical Distinctness of Allergic Rhinitis in Patients with Allergy to Molds

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Krzysztof Kołodziejczyk ◽  
Andrzej Bozek
Keyword(s):  
Allergic Rhinitis ◽  
Allergic Sensitization ◽  
House Dust Mites ◽  
Study Group ◽  
Dust Mites ◽  
High Concentration ◽  
Prick Test ◽  
Fungal Allergens ◽  
Inhalant Allergens ◽  
High Level

Introduction. Molds are a very diverse group of allergens. Exposure and sensitization to fungal allergens can promote the development and worsening of allergic rhinitis (AR).Objective. The natural course of allergic rhinitis was compared between a group of patients with allergy to molds and patients with AR to other allergens as the control groups.Material and Methods. The study group consisted of 229 patients, with a mean age of27.4±6.5 yrs. The study group was compared to groups of AR patients with allergy to house dust mites or pollens or with multivalent allergy. Allergic sensitization was assessed using the skin prick test (SPT) with a panel of 15 allergens to molds and other common inhalant allergens. Specific IgEs against all tested allergens were measured. Nasal fractional exhaled nitric oxide (FeNO) level was assessed with a chemiluminescence analyzer (NIOX MINO) and compared between groups. Cluster analysis was performed for determine models of AR in whole population.Results. Patients with allergy to mold have had AR with a higher blockage of nose than in the patients with other allergies.Alternaria alternata(59% of examined),Cladosporium herbarum(40%), andAspergillus fumigatus(36%) were the predominant allergens in the study group. Patients with allergy to mold were more often present in two clusters: there were patients with more frequent accompanying asthma and high level of FeNO.Conclusion. Patients with allergy to molds have a significantly greater predisposition for bronchial asthma and high concentration of FeNO.

Cluster analysis of child homicide in South Korea

2020 ◽  
Vol 101 ◽  
pp. 104322 ◽  
Author(s):  
KyuHee Jung ◽  
Heesong Kim ◽  
Eunsaem Lee ◽  
Inseok Choi ◽  
Hyeyoung Lim ◽  
...  
Keyword(s):  
Cluster Analysis ◽  
South Korea ◽  
Child Homicide

scholarly journals The Development of Gratitude in Seven Societies: Cross-Cultural Highlights

2017 ◽  
Vol 52 (1) ◽  
pp. 135-150 ◽  
Author(s):  
Sara Etz Mendonça ◽  
Elisa A. Merçon-Vargas ◽  
Ayse Payir ◽  
Jonathan R. H. Tudge
Keyword(s):  
United States ◽  
Cluster Analysis ◽  
South Korea ◽  
Hierarchical Cluster Analysis ◽  
Hierarchical Cluster ◽  
The United States ◽  
Cross Cultural ◽  
High Expression ◽  
Common Trends ◽  
Age Related

This study aimed to examine children’s expression of gratitude in Brazil, China, Guatemala, Russia, South Korea, Turkey, and the United States. Participants ( N = 2,265) consisted of 7- to 14-year-olds ( M = 10.56, SD = 2.09; 54.4% girls). Using hierarchical cluster analysis, we found four clusters of gratitude expression: (a) Russia and Turkey (moderate–high expression of connective, low concrete, and moderate verbal gratitude), (b) Brazil and the United States (low connective, higher rates of concrete, and moderate–high rates of verbal gratitude), (c) China and South Korea (higher rates of connective, lower concrete, and lower–moderate verbal gratitude), and (d) Guatemala (lower rates of concrete and connective gratitude, and higher rates of verbal gratitude). In addition, we found common trends in age-related differences for verbal and concrete gratitude among most societies. These findings support the argument for diligence in avoiding implicit generalizations based on research conducted mostly in Western Educated Industrialized Rich Democratic (WEIRD) societies.

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