What Are Friends for: Shifting the Focus of Social Relationships to Their Instrumentality as a Response to Future Anxiety

Heeyoung Yoon(윤희영),Haejoo Han(한혜주),Kyoungmi Lee(이경미) 한국마케팅학회 2020 마케팅연구 Vol.35 No.2

미래에 대한 불안감은 목표 지향적인 행동과 연관이 있을 뿐 아니라, 인생에서 발생하는 다양한 사건들에 대한 불확실성과 예측 불가능함에 대한 걱정을 내포하고 있다. 본 연구는 미래에 대한 불안감이 개인으로 하여금 사회적 관계에 대한 도구적인 가치 인식을 증가시킬 수 있음을 제안한다. 구체적으로, 개인이 자신의 미래에 대해 불안감을 많이 느낄 수록, 이들은 자신이 인적 관계에서 획득할 수 있는 도구적이고 수단적인 도움에 대한 가치가 더 높다고 인지할 수 있고, 결과적으로 새로운 사람들을 만날 수 있는 기회를 제공하는 경험에 대해 보다 긍정적인 태도를 보인다. 본 연구는 미래에 대한 불안감이 소비자들로 하여금 사회적 관계를 향후에 발생할 수 있는 일들에 대비하기위한 수단으로서 볼 수 있게 함으로서, 결과적으로 소비자들이 고립되기보다 서로 모이게 할 수 있음을 보여 주는 최초의 연구이다. This research suggests that future anxiety heightens the perceived instrumental value of social relationships. As individuals feel more anxious about their future, their appreciation for the instrumental support from a relationship intensifies, and they are likely to show more positive attitudes toward an experience that provides an opportunity to meet new people. The current investigation is the first to show that people’s future anxiety can pull them together (rather than isolate them) by making people view social ties as a means of preparing for the future. Indeed, future anxiety is not only related to goal-directed behaviors, but also inevitably entails concerns about uncertainty and unpredictability regarding life events.

Modeling To Predict Growth/No Growth Boundaries and Kinetic Behavior of Salmonella on Cutting Board Surfaces

YOON, HYUNJOO,LEE, JOO-YEON,SUK, HEE-JIN,LEE, SUNAH,LEE, HEEYOUNG,LEE, SOOMIN,YOON, YOHAN International Association for Food Protection 2012 Journal of food protection Vol.75 No.12

<P>This study developed models to predict the growth probabilities and kinetic behavior of Salmonella enterica strains on cutting boards. Polyethylene coupons (3 by 5 cm) were rubbed with pork belly, and pork purge was then sprayed on the coupon surface, followed by inoculation of a five-strain Salmonella mixture onto the surface of the coupons. These coupons were stored at 13 to 35°C for 12 h, and total bacterial and Salmonella cell counts were enumerated on tryptic soy agar and xylose lysine deoxycholate (XLD) agar, respectively, every 2 h, which produced 56 combinations. The combinations that had growth of ≥0.5 log CFU/cm2 of Salmonella bacteria recovered on XLD agar were given the value 1 (growth), and the combinations that had growth of &lt;0.5 log CFU/cm2 were assigned the value 0 (no growth). These growth response data from XLD agar were analyzed by logistic regression for producing growth/no growth interfaces of Salmonella bacteria. In addition, a linear model was fitted to the Salmonella cell counts to calculate the growth rate (log CFU per square centimeter per hour) and initial cell count (log CFU per square centimeter), following secondary modeling with the square root model. All of the models developed were validated with observed data, which were not used for model development. Growth of total bacteria and Salmonella cells was observed at 28, 30, 33, and 35°C, but there was no growth detected below 20°C within the time frame investigated. Moreover, various indices indicated that the performance of the developed models was acceptable. The results suggest that the models developed in this study may be useful in predicting the growth/no growth interface and kinetic behavior of Salmonella bacteria on polyethylene cutting boards.</P>

국내 물류성과 연구동향: 2001-2015

윤희영(Heeyoung Yoon) 한국국제상학회 2016 國際商學 Vol.31 No.1

본 연구는 물류성과연구가 균형 있게 발전할 수 있는 기반을 마련하기 위해 2001년부터 2015년까지 물류성과를 연구한 국내 학술지논문 164편의 연구동향을 분석하였다. 분석내용은 164편의 학술지논문을 14개의 연구주제, 4개의 연구방법, 11개의 자료분석방법을 분류하고 각각의 교차분류와 연구주제별 변수분석 등을 수행하였다. 분석결과를 정리하면 다음과 같다. 물류성과에 관한 연구는 지난 15년간 꾸준히 증가하고 있으며, 13가지의 다양한 주제와 물류성과와의 관련성을 분석한 연구가 이루어지고 있다. 연구주제적 측면에서는 물류관리시스템, 환경, 파트너십과 물류성과와의 연구가 많이 이루어졌다. 연구방법적 측면에서는 설문조사방법이, 자료분석방법측면에서는 회귀분석과 구조 방정식모형이 주로 이루어졌다. 본 연구는 국내 학술지논문을 중심으로 물류성과연구에 대한 연대기적변화와 발전방향에 대해 조망하고 학문적인 발전을 위한 시사점을 도출한 첫 연구이다. 이와 같은 연구결과를 통해 분석대상과 연구방법을 다양화하고, 국내외 물류성과 연구를 비교연구하는 등 심층적 인 접근이 요구된다. Purpose : This study was to analyze the trends of 164 research articles from Korean academic journals on logistics performance during the period 2001-2015 in order to establish a foundation for logistics performance research to achieve proportionate development. Research design, data, methodology : Individual articles were analyzed in the aspects of 14 research topics, 4 research methodologies and 11 data analysis methodologies and were subjects of cross-classification and variable analysis by research topic. Results : The analysis result is as follows: over the past 15 years, research on logistics performance has steadily grown in its volume and subject. The main focus of research has been to the relationship between logistics performance and 13 various topics. For research topics, logistics management system, environment and partnership have been among the most popular ones. Questionnaire has been the most frequently used research methodology and researchers have used regression analysis and structural equation model the most as data analysis methodology. Conclusions : This study is the first of its kind which examines the chronicle and development paths of research on logistics performance and gives suggestions on future study for the field of logistics performance research to grow further. This study suggests that logistics performance research improve its scope and depth such as diversifying analysis subjects and research methodologies and conducting a comparative study of related research at home and abroad.

Modeling Growth/No Growth Boundaries of Salmonella and Indigenous Microflora on Cutting Board Surface

Hyunjoo Yoon,Sunah Lee,Heeyoung Lee,Soomin Lee,Joo-Yeon Lee,Hee-Jin Suk,Yahan Yoon 한국식품영양과학회 2011 한국식품영양과학회 학술대회발표집 Vol.2011 No.10

CSSP2 : An improved method for predicting contact-dependent secondary structure propensity

Yoon, Sukjoon,Welsh, Willian J,Jung, Heeyoung,Yoo, Young Do Research Institute of Women's Health Sookmyung Wom 2007 WOMEN And HEALTH Vol.3 No.1

The calculation of contact-dependent secondary structure propensity (CSSP) has been reported to sensitively detect non-native β-strand propensities in the core sequences of amyloidogenic proteins. Here we describe a noble energy-based CSSP method implemented on dual artificial neural networks that rapidly and accurately estimate the potential for the non-native secondary structure formation in local regions of protein sequences. In this method, we attempted to quantify long-range interaction patterns in diverse secondary structures by potential energy calculations and decomposition on a pairwise per-residue basis. The calculated energy parameters and seven-residue sequence information were used as inputs for artificial neural networks (ANNs) to predict sequence potential for secondary structure conversion. The trained single ANN using the >(i, i ± 4) interaction energy Parameter exhibited 74% accuracy in predicting the secondary structure of test sequences in their native energy state, while the dual ANN-based predictor using (i, i ± 4) and >(i, i ± 4) interaction energies showed 83% prediction accuracy. The present method provides a simple and accurate tool for predicting sequence potential for secondary structure conversions without using 3D structural information.

Development of User-Friendly Modeling Software and Its Application in Processed Meat Products

Heeyoung Lee,Panho Lee,Soomin Lee,Sejeong Kim,Jeeyeon Lee,Jimyeong Ha,Hyemin Oh,Yohan Yoon,Yukyung Choi 한국식품위생안전성학회 2018 한국식품위생안전성학회지 Vol.33 No.3

The objective of this study was to develop software to predict the kinetic behavior and the probability of foodborne bacterial growth on processed meat products. It is designed for rapid application by non-specialists in predictive microbiology. The software, named Foodborne bacteria Animal product Modeling Equipment (FAME), was developed using Javascript and HTML. FAME consists of a kinetic model and a probabilistic model, and it can be used to predict bacterial growth pattern and probability. In addition, validation and editing of model equation are available in FAME. The data used by the software were constructed with 5,400 frankfurter samples for the kinetic model and 345,600 samples for the probabilistic model using a variety of combinations including atmospheric conditions, temperature, NaCl concentrations and NaNO2 concentrations. Using FAME, users can select the concentrations of NaCl and NaNO2 meat products as well as storage conditions (atmosphere and temperature). The software displays bacterial growth patterns and growth probabilities, which facilitate the determination of optimal safety conditions for meat products. FAME is useful in predicting bacterial kinetic behavior and growth probability, especially for quick application, and is designed for use by non-specialists in predictive microbiology.

Modeling to Describe Kinetic Behavior of Staphylococcus aureus on Fresh Cheeses

Heeyoung Lee,Kyungmi Kim,Soomin Lee,Sooyeon Ahn,Jinsan Moon,Youngjo Kim,Yohan Yoon 한국식품영양과학회 2012 한국식품영양과학회 학술대회발표집 Vol.2012 No.10

Effects of Working Memory Training on Phonological Awareness, Word Recognition, and Working Memory in Pre-school Korean-English Bilingual Children

Yoon Ah Kim(김윤아),Heeyoung Park(박희영),Young Tae Kim(김영태) 한국언어청각임상학회 2019 Communication Sciences and Disorders Vol.24 No.3

배경 및 목적: 본 연구는 학령전기 한국어-영어 이중언어아동을 대상으로 언어성 작업기억훈련이 음운인식 및 단어재인, 작업기억 능력에 미치는 효과를 살펴보고자 하였다. 방법: 한국어를 모국어로 사용하고 3세 이후에 영어를 습득한 만 4-5세의 이중언어아동 22명을 작업기억훈련 집단 11명과 비훈련 집단 11명으로 나누어 언어성 작업기억훈련인 단어폭 과제와 이중-처리작업조건 과제를 실시하여 사전사후의 음운인식(음소인식, 음절인식)과 단어재인(의미단어, 무의미단어), 작업기억(정순, 역순의 비단어 따라말하기, 한국어 문장폭 기억, 영어 문장폭 기억) 능력을 비교하여 훈련효과의 유무를 검증하였다. 결과: 훈련집단은 언어성 작업기억훈련 이후 음운인식 과제의 음절과 음소인식 모두 정반응률이 유의하게 증가하였고 단어재인 과제 중 무의미단어 재인의 정반응률이 유의하게 증가하였다. 3가지 작업기억 과제에서 훈련집단은 비단어 따라말하기 과제의 정순과 역순 따라말하기 모두 정반응률이 유의하게 증가하였으나 한국어와 영어의 문장폭 기억 과제의 정오판단과 회상의 정반응률은 유의한 증가를 보이지 않았다. 이에 반해 비훈련 집단은 음운인식과 단어재인, 작업기억 과제 모두에서 사전사후에 유의한 차이를 보이지 않았다. 논의 및 결론: 본 연구는 언어성 작업기억훈련이 이중언어아동들의 음운인식 및 단어재인, 언어 처리와 관련된 작업기억능력을 향상시킴을 보여준다. 이는 이중언어아동들의 읽기 기술 중재에서 언어성 작업기억훈련의 효과를 입증하는 근거자료로 활용될 수 있다. Objectives: This study investigated whether verbal working memory training could improve the phonological awareness, word recognition, and working memory in pre-school bilingual children. Methods: Twenty-two Korean-English bilingual children aged 5-6 years who were attending English kindergartens or international institutes participated in this study. Subjects were split into two equal groups, training and control groups. The training group completed intensive working memory training (10 sessions over 2 weeks) which consisted of word span backward training and dual-load condition training tasks. Two groups were assessed on 10 measures of phonological awareness (syllable, phoneme), word recognition (real-word, non-word) and working memory (non-word repetition, Korean Competing Language Processing Task [CLPT], English CLPT) before and after working memory training. Results: The training group showed significant increases in the percentage of correct responses on syllable awareness, phoneme awareness, non-word recognition, forward and backward non-word repetition tasks, but not on real-word recognition, Korean CLPT, and English CLPT tasks. There were no significant differences in all measures between pre-test and post-test in the control group. Conclusion: These results show that linguistic working memory training boosts performance on measures of reading-related skills and working memory. This finding suggests that working memory training could be considered as a reading skill intervention for bilingual children.

A report of 43 unrecorded bacterial species within the phyla Bacteroidetes and Firmicutes isolated from various sources from Korea in 2019

Heeyoung Kang,Haneul Kim,Hana Yi,김원용,Jung-Hoon Yoon,임완택,김명겸,성치남,김승범,차창준,전체옥,KISEONG JOH 국립생물자원관 2021 Journal of species research Vol.10 No.2

In 2019, 43 bacterial strains were isolated from food, soil, marine environments, human, and animals related sources from the Republic of Korea. Based on the analysis of 16S rRNA gene sequence, these isolates were allocated to the phyla Bacteroidetes and Firmicutes as unrecorded species in Korea. The 10 Bacteroidetes strains were classified into the families Bacteroidaceae, Chitinophagaceae, Cytophagaceae, Flavobacteriaceae, and Prolixibacteraceae (of the orders Bacteroidales, Chitinophagales, Cytophagales, Flavobacteriales, and Marinilabiliales, respectively). The 33 Firmicutes strains belonged to the families Bacillaceae, Paenibacillaceae, Planococcaceae, Staphylococcaceae, Clostridiaceae, Lachnospiraceae, Peptostreptococcaceae, Enterococcaceae, Lactobacillaceae, Leuconostocaceae, and Streptococcaceae (of the orders Bacillales, Clostridiales, and Lactobacillales). These unrecorded bacteria were determined based on taxonomic criterion (>98.7%; 16S rRNA gene sequence similarity). In addition, their phylogenetic affiliation, as well as cell and colony morphologies, staining reactions, and physiological and biochemical properties were investigated. Therefore, we report 43 isolates as unrecorded species, and described basic features, isolation source, and locations of these strains.

Glial GABA, synthesized by monoamine oxidase B, mediates tonic inhibition

Yoon, Bo‐,Eun,Woo, Junsung,Chun, Ye‐,Eun,Chun, Heejung,Jo, Seonmi,Bae, Jin Young,An, Heeyoung,Min, Joo Ok,Oh, Soo‐,Jin,Han, Kyung‐,Seok,Kim, Hye Yun,Kim, Taekeun,Kim, Young Soo Cambridge University Press 2014 The Journal of physiology Vol.592 No.22

<P><B></B></P><P>GABA is the major inhibitory transmitter in the brain and is released not only from a subset of neurons but also from glia. Although neuronal GABA is well known to be synthesized by glutamic acid decarboxylase (GAD), the source of glial GABA is unknown. After estimating the concentration of GABA in Bergmann glia to be around 5–10 m<SMALL>m</SMALL> by immunogold electron microscopy, we demonstrate that GABA production in glia requires MAOB, a key enzyme in the putrescine degradation pathway. In cultured cerebellar glia, both Ca<SUP>2+</SUP>‐induced and tonic GABA release are significantly reduced by both gene silencing of MAOB and the MAOB inhibitor selegiline. In the cerebellum and striatum of adult mice, general gene silencing, knock out of MAOB or selegiline treatment resulted in elimination of tonic GABA currents recorded from granule neurons and medium spiny neurons. Glial‐specific rescue of MAOB resulted in complete rescue of tonic GABA currents. Our results identify MAOB as a key synthesizing enzyme of glial GABA, which is released via bestrophin 1 (Best1) channel to mediate tonic inhibition in the brain.</P>