• Title/Summary/Keyword: Adaptation of university life

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Response of Soybean to Elevated $\textrm{CO}_2$ Concentrations and Temperatures at Two Levels of Nitrogen Application

  • Kim, Hong-Rae;Song, Hong-Keun;Lee, Sun-Joo;Kim, Seung-Hyun;Han, Sang-Joon;Ahn, Joung-Kuk;Chung, Ill-Min
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.49 no.2
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    • pp.73-81
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    • 2004
  • Effects of ambient and elevated $\textrm{CO}_2$ and high temperature, and their interactions with zero and applied nitrogen supply (NN-no nitrogen and AN-applied nitrogen) were studied on soybean (Glycine max L.) in 2001. In this experiment, elevated $\textrm{CO}_2$ (650 $\mu\textrm{mol}.\textrm{mol}^{-1}$) and temperature (+$5^{\circ}$) increased total dry mass at final harvest by 125% and 119% and seed weight per plant by 57% and 105% for NN and AN plants, respectively. Although the influence of temperature and temperature x $\textrm{CO}_2$ were not significant, the influences of $\textrm{CO}_2$ concentration and temperature x $\textrm{CO}_2$ concentration were significant on total dry weight and seed weight, respectively. In particular, seed weight per plant was increased, while weight per one hundred seed weight was decreased with elevated $\textrm{CO}_2$ and temperature. The N supply increased biomass and seed weight per soybean plants. The results of this study suggest that the long-term adaptation of soybean growth at an elevated $\textrm{CO}_2$ concentration and high temperature might potentially result in a increase in dry matter production and yield.

Whole Transcriptomic Analysis of Bacillus anthracis during Hydrogen Peroxide Decontamination (과산화수소 제독 과정에서의 탄저균 전사체 분석)

  • Kim, Sang Hoon;Kim, Se Kye;Jung, Kyoung Hwa;Yoon, Sung Nyo;Kim, Yun Ki;Kim, Min Cheol;Ryu, Sam Gon;Lee, Hae Wan;Chai, Young Gyu
    • Journal of the Korea Institute of Military Science and Technology
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    • v.18 no.4
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    • pp.478-483
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    • 2015
  • Decontamination of biological agents utilizes hydrogen peroxide($H_2O_2$) for its effectiveness and safeness. Bacillus anthracis is a major target for $H_2O_2$ decontamination. To assess the effect of $H_2O_2$ on B. anthracis and identify biomarkers for decontamination, whole transcriptomic profiling of $H_2O_2$-treated B. anthracis was performed. Here we identified deregulation in stress response genes, transcription factors and cellular homeostasis genes. We also found that expression of antisense RNAs increased in B. anthracis during decontamination. We postulate that B. anthracis prioritizes survival and adaptation in response to $H_2O_2$ treatment by changing its gene expression pattern.

Perception of Sex Life and Sexual Desire Coping Behavior according to General Characteristics among the Spouseless Aged (무배우자 노인의 일반적 특성에 따른 성생활 인식과 성 욕구 대처행동)

  • Choi, Eun Young;Ha, Ju Young
    • Korean Journal of Adult Nursing
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    • v.26 no.1
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    • pp.58-66
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    • 2014
  • Purpose: The aim of this study was to identify factors affecting the perception of sex life and sexual desire coping behavior among the spouseless elderly. Methods: The participants were 149 elders who resided in six administrative regions of B city. Data were collected from December 1, 2012 to March 3, 2013 using a questionnaire. Data were analyzed using descriptive statistics, t-test, ANOVA, Scheff$\acute{e}$ test, Pearson's correlation coefficient, and Stepwise multiple regression in a PASW 18.0 program. Results: Stepwise multiple regression analysis of data indicated that the most likely predictor is gender. Gender, sexual relation, subjective health status and parent-child relationship explained 34% of the variance of perception of sex life. Gender, dating status and age explained 44% of the variance of sexual desire coping behavior. Conclusion: Based on the study findings, gender and current dating status should be considered to conduct comprehensive sex health care education for healthy sex life of the elderly with no spouse.

Analysis on Antioxidant Activity of the New Developed Waxy Corn Hybrids

  • Lee, Moon-Sub;Yang, Jae-Hyeon;Lee, Gyeong-Eun;Lee, Hee-Bong
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.60 no.2
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    • pp.185-189
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    • 2015
  • A total of CNU 28 colored hybrids developed at the Chungnam National University were evaluated to identify new cultivars with functionality. These color waxy corn hybrids appeared to have high antioxidant activity. The SOD activity in the developed color waxy corn was high; CNU13H-3, in white hybrid, and CNU13H-44, in yellow hybrid, was 5% and 27% higher than the Yeonnong and Daehakchal Gold 1 of control hybrids, respectively. The DPPH activity in CNU13H-44, of yellow hybrid, and CNU13H-75 of purple hybrid were high as 32.6 mg/g and 40.1 mg/g, respectively. We have already reported that color hybrids have high antioxidant activity. In this study also was same results. On the basis of our findings, these hybrids will be planted in next time to compare their productivity and area adaptation.

A Qualitative Study on the Busyness and Subjective Pace of Life among Koreans in Early Adulthood (성인초기 한국인의 바쁨과 주관적인 삶의 속도에 대한 질적 연구)

  • Woo, Ami;Jung, Taeyun
    • Korean Journal of Culture and Social Issue
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    • v.27 no.4
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    • pp.529-559
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    • 2021
  • This study examines how people perceive and experience busyness, which is a great social pressure in the Korean society, and The socio-psychological motives that drive people's different paces of life, such as busyness or slowness, despite being in the same busy reality, were examined. Furthermore, an in-depth study was conducted on the adaptation factors in the real society according to the speed of individual life. The analysis of this study was based on an in-depth interview data of 21 unmarried men and women in their 20s and 30s, and was conducted using a phenomenological qualitative analysis method. As a result, the perception and experience of being busy had both positive and negative parts. The components of socio-psychological motivation that affect the speed of an individual's life are 'internalization of positive values of (busy/rest)', '(future/present) centric', 'selection & concentration/Inertial busyness', 'personality characteristics' were derived. In addition, 'self-selection', 'successful time management', and 'maintenance of psychological health' were derived as common factors among adaptation factors in real society, 'a sense of achievement' and 'understanding and accepting self-characteristics' were derived as discriminatory factors. became Based on these results, the value and meaning of being busy in Korean society was discussed from a social psychology perspective, and a new perspective was presented to existing studies and discussions related to the speed of life. In addition, several follow-up studies were proposed.

Effects of Self-esteem, Locus of Control to Military Life on Soldiers Adjusting: Mediating effect of Social Support and Stress Coping Strategies (자기존중감 및 통제소재가 병사의 군 적응에 미치는 영향: 사회적 지지와 스트레스 대처 방식의 매개 효과)

  • Joo Hee Lee ;Jung Kyu Kim
    • Korean Journal of Culture and Social Issue
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    • v.21 no.3
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    • pp.299-315
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    • 2015
  • This study examines correlations among factors that reportedly affect adjustment to military life: self esteem, locus of control,, social support and stress coping strategies. The study also attempts to validate the structural model to enhance understanding of the process of adjusting to the military life. The subjects of the study were 447 listed soldiers from private to sergeant currently stationed and serving in an army post in Gangwon-Do, Korea. The following tools were used for this study. Based on self-inventory questionnaires, evaluations were made regarding self esteem, locus of control, social support, stress management, adaptation to military life. Reliability of each criterion was evaluated based on reliability examination, correlations among parameters were analyzed, and the structural equation model was validated to verify the research model. The results of the study can be summarized as follows. First, internal control and self esteem have significant positive influence on social support and stress coping. Second, internal control and self esteem affect adjusting to military life through social support and active coping, two factors mediated in this study to act as parameters between self-esteem and internal control and military adaption. This study emphasizes intervention such as establishment of a social support system and training for taking necessary actions as limitations of studies dealing with internal traits and military adaptation. Since the subjects of this study were chosen from an army based in a single location for convenience' sake, it may be difficult to generalize the results to analyze the entire military.

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Isolation of Biologically Active Compounds from the Flower Petals of Carthamus tinctorius L. (홍화(Carthamus tinctorius L.)로부터 활성물질의 분리)

  • Kim, Yung-Hee;Ahn, Eun-Mi;Bang, Myun-Ho;Nam, Ji-Youn;Kwon, Byung-Mok;Baek, Nam-In
    • Applied Biological Chemistry
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    • v.41 no.2
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    • pp.197-200
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    • 1998
  • The MeOH extracts obtained from the flower petals of Carthamus tinctorius were solvent-fractionated with EtOAc, n-BuOH, and $H_2O$, successively. From the n-BuOH extract 2 flavonoid compounds were isolated through the repeated silica gel column chromatographies. From not only the results of physico-chemical data including HMBC but also the adaptation of acid hydrolysis, the chemical structures of the compounds were determined as $3-O-[{\beta}-D-glucopyranosyl(1{\rightarrow}2)\;{\beta}-D-glucopyranosyl]\;kaempferol$ and $3-O-[{\alpha}-L-rhamnopyranosyl(1{\rightarrow}6)\;{\beta}-D-glucopyranosyl]\;kaempferol$. The compounds exhibited $IC_{50}$ values in Grab2-Shc activity to be 43 and $47{\mu}g/ml$, respectively.

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Development of Biologically Active Compounds from Edible Plant Sources-I. -Isolation of Major Components from the Tuber of Ipomoea batatas Lam.- (식용 식물자원으로부터 활성물질의 탐색-I. -고구마(Ipomoea batatas Lam.) 괴근 주요성분의 분리-)

  • Ahn, Eun-Mi;Bang, Myun-Ho;Kim, Hae-Yeong;Baek, Nam-In
    • Applied Biological Chemistry
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    • v.40 no.6
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    • pp.583-587
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    • 1997
  • The MeOH extracts obtained from the tuber of Ipomoea batatas Lam. were solvent-fractionated with EtOAc, n-BuOH, and $H_2O$, respectively. From EtOAc fraction four different compounds were isolated through the repeated silica gel column chromatographies. From not only the results of NMR and MS data but also the adaptation of hydrolysis, methylation, and acetylation, the chemical structures of compounds were elucidated as resin glycoside, simonin I, ${\beta}-sitosterol$, and two kinds of unsaturated fatty acids.

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Effects on Stress, Problem Solving Ability and Quality of Life of as a Stress Management Program for Hospitalized Schizophrenic Patients: Based on the Stress, Appraisal-Coping Model of Lazarus & Folkman (Lazarus와 Folkman의 스트레스 평가-대처 모델에 근거한 입원 스트레스 관리 프로그램이 조현병 환자의 스트레스, 문제해결능력 및 삶의 질에 미치는 영향)

  • Park, Sun Ah;Sung, Kyung Mi
    • Journal of Korean Academy of Nursing
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    • v.46 no.4
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    • pp.583-597
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    • 2016
  • Purpose: The study was done to evaluate the effects a Stress Management Program (SMP) on stress, problem solving skills, and quality of life for hospitalized patients with Schizophrenia. Methods: A mixed method design was used: a combination of a repeated-measure design with a non-equivalent control group and qualitative data collection. The participants were 40 patients with schizophrenia admitted in three psychiatric hospitals. The experimental group (n=20) received the SMP twice a week for a total of 8 weeks. Results: Study results revealed that the SMP was effective for stress (F=321.02, p<.001), problem solving ability (F=246.28, p<.001), and quality of life (F=63.35, p<.001) for hospitalized persons with schizophrenia. Conclusion: The results suggest that a SMP can be an effective strategy to reduce patients' hospitalization stress, and improve problem solving skills and quality of life. Therefore, it is recommended that mental health nurses use this stress management program in clinical practice to assist adaptation to hospitalization for persons with schizophrenia.

Epigenetic memory in gene regulation and immune response

  • Kim, Min Young;Lee, Ji Eun;Kim, Lark Kyun;Kim, TaeSoo
    • BMB Reports
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    • v.52 no.2
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    • pp.127-132
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    • 2019
  • Cells must fine-tune their gene expression programs for optimal cellular activities in their natural growth conditions. Transcriptional memory, a unique transcriptional response, plays a pivotal role in faster reactivation of genes upon environmental changes, and is facilitated if genes were previously in an active state. Hyper-activation of gene expression by transcriptional memory is critical for cellular differentiation, development, and adaptation. TREM (Transcriptional REpression Memory), a distinct type of transcriptional memory, promoting hyper-repression of unnecessary genes, upon environmental changes has been recently reported. These two transcriptional responses may optimize specific gene expression patterns, in rapidly changing environments. Emerging evidence suggests that they are also critical for immune responses. In addition to memory B and T cells, innate immune cells are transcriptionally hyperactivated by restimulation, with the same or different pathogens known as trained immunity. In this review, we briefly summarize recent progress in chromatin-based regulation of transcriptional memory, and its potential role in immune responses.