• Asian-Australasian Journal of Animal Sciences
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• 제28권4호
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• pp.592-598
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• 2015

Stress adversely affects the wellbeing of commercial chickens, and comes with an economic cost to the industry that cannot be ignored. In this paper, we first develop an inexpensive and non-invasive, automatic online-monitoring prototype that uses sound data to notify producers of a stressful situation in a commercial poultry facility. The proposed system is structured hierarchically with three binary-classifier support vector machines. First, it selects an optimal acoustic feature subset from the sound emitted by the laying hens. The detection and classification module detects the stress from changes in the sound and classifies it into subsidiary sound types, such as physical stress from changes in temperature, and mental stress from fear. Finally, an experimental evaluation was performed using real sound data from an audio-surveillance system. The accuracy in detecting stress approached 96.2%, and the classification model was validated, confirming that the average classification accuracy was 96.7%, and that its recall and precision measures were satisfactory.

• 융합정보논문지
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• 제8권6호
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• pp.21-29
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• 2018

융복합시대에 생활스트레스가 대학생활만족도와 전공만족도에 미치는 영향에 대하여 파악하고자 한다. 전라도와 광주광역시에 위치한 대학교의 재학생 364명 대상으로 2018년 4월 2일부터 2018년 4월 23일까지 자기기입식 설문조사를 실시하였다. 일반적 특성에 따른 대학생활 만족도와 전공만족도는 주관적 건강상태의 경우 양호가 가장 높게 나타났다. 생활스트레스 중 대인관계 영역 중에서는 교수관계가 높게 나타났고, 당면과제 영역 중에서는 학업문제가 가장 높게 나타났다. 생활스트레스 전체는 평소 수면시간의 경우 6-8시간이 가장 낮게 나타났다. 대학생활 만족도에 가장 많은 영향을 미치는 요인은 전공만족도 이였다. 전공만족도에 가장 많은 영향을 미치는 요인은 대학생활 만족도이었고, 생활스트레스 정도가 높을수록 전공만족도가 낮게 나타났다. 따라서 대학생들의 생활스트레스 완화될 수 있는 교육 및 프로그램 개발에 기초자료로 활용하고자한다.

• 한국초지조사료학회지
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• 제43권1호
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• pp.56-61
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• 2023

The germination process is critical for plant growth and development and it is largely affected by environmental stress, especially salinity. Recently, hydrogen sulfide (H₂S) is well known to act as a signaling molecule in a defense mechanism against stress conditions but poorly understood regulating seed germination. In this study, the effects of NaHS (the H₂S donor) pretreatment on various biochemical (hydrogen peroxide (H₂O₂) content and amylase and protease activity) and physiological properties (germination rate) during seed germination of oilseed rape (Brassica napus L. cv. Mosa) were examined under salt stress. The seed germination and seedling growth of oilseed rape were inhibited by NaCl treatment but it was alleviated by NaHS pretreatment. The NaCl treatment increased H₂O₂ content leading to oxidative stress, but NaHS pre-treatments maintained much lower levels of H₂O₂ in germinating seeds under salt stress. Amylase activity, a starch degradation enzyme, significantly increased over 2-fold in control, NaHS pretreatment, and NaHS pretreatment under NaCl during seed germination compared to NaCl treatment. Protease activity was highly induced in NaHS-pretreated seeds compared to NaCl treatment, accompanied by a decrease in protein content. These results indicate that NaHS pretreatment could improve seed germination under salt stress conditions by decreasing H₂O₂ accumulation and activating the degradation of protein and starch to support seedling growth.

• 한국치위생학회지
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• 제10권4호
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• pp.663-670
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• 2010

Objectives : The purpose of this study is to measure employment stress of health college students and to consider a proper means for the solution. Methods : The population of the research is some randomly chosen health college students located in Seoul City during the period from May 10 to June 11 2010, and the sample of 295 students were recruited as the analysis object group. The data on general characteristics and employment stress were collected by a questionnaire survey. The collected data were analyzed with the SPSS WIN 12.0 program. The following shows the results of this study. Results : 1. Mean scores of employment stress in female students were significantly higher than those in male(p<0.01). 2. Employment stress level was significantly higher in low group of home economy, competence for a schoolwork, personal relations, satisfaction in campus life. 3. In regression analysis, home economy, competence for a schoolwork, satisfaction in campus life were proved as significant factors that is related to the employment stress(p<0.01). In other words, It is significant statistically that the lower home economy, competence for a schoolwork, satisfaction in campus life, the higher employment stress level (p<0.05). Conclusions : I suggest with the result of the study that for coping effectively employment stress of health college students, we will need to open an exclusive employment counsel window for better administration welfare service in campus. Because of students are independent responsibility of employment, active effort must take precedence in order for the solution of problem by themselves. Also, we will need to create better academic environment and show more concern, consideration, love in family.

• Journal of Microbiology and Biotechnology
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• 제20권3호
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• pp.579-586
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• 2010

A genomic DNA fragment encoding a putative maltooligosyltrehalose synthase (NfMTS) for trehalose biosynthesis was cloned by the degenerate primer-PCR from cyanobacterium Nostoc flagelliforme. The ORF of NfMTS was 2,799 bp in length and encoded 933 amino acid residues constituting a 106.6 kDa protein. The deduced amino acid sequence of NfMTS contained 4 regions highly conserved for MTSs. By expression of NfMTS in E. coli, it was demonstrated that the recombinant protein catalyzed the conversion of maltohexaose to maltooligosyl trehalose. The $K_m$ of the recombinant enzyme for maltohexaose was 1.87 mM and the optimal temperature and pH of the recombinant enzyme was at $50^{\circ}C$ and 7.0, respectively. The expression of MTS of N. flagelliforme was upregulated, and both trehalose and sucrose contents increased significantly in N. flagelliforme during drought stress. However, trehalose accumulated in small quantities (about 0.36 mg/g DW), whereas sucrose accumulated in high quantities (about 0.90 mg/g DW), indicating both trehalose and sucrose were involved in dehydration stress response in N. flagelliforme and sucrose might act as a chemical chaperone rather than trehalose did during dehydration stress.

• 융합정보논문지
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• 제11권3호
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• pp.34-45
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• 2021

본 연구는 코로나19(COVID-19)라는 위기 상황에서 간호학생의 전공선택동기, 학업 스트레스, 자기효능감 및 대학생활적응 정도를 파악하고, 대학생활적응에 영향을 미치는 요인을 파악하기 위한 서술적 조사연구이다. 2개 지역의 간호학생 243명을 편의모집하였고, 수집된 자료는 SPSS for Windows Ver. 22.0을 이용하여 기술통계, t-test, ANOVA, Scheffé test, Pearson's correlation coefficient, Multiple linear regression으로 분석하였다. 연구결과 전공선택동기와 자기효능감은 높을수록, 학업스트레스는 낮을수록 대학생활적응이 높은 것으로 나타났다. 대학생활적응에 영향을 미치는 요인은 자기효능감, 전공선택동기, 한 달 용돈 금액 순으로 나타났으며, 대학생활적응에 대한 이들 변수의 설명력은 65.6%로 나타났다. 이에 간호학생의 대학생활적응을 높이기 위해서는 자기효능감을 높여주기 위한 대학생활적응 프로그램의 개발 및 적용이 필요하다.

• 한국산학기술학회논문지
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• 제22권5호
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• pp.361-370
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• 2021

본 연구는 비대면 온라인 강의와 대면강의를 경험한 간호대학생의 대학생활스트레스와 삶의 만족에 영향을 미치는 요인을 파악하고자 실시하였다. 연구대상자는 일부 지역 간호대학생을 대상으로 하였으며, 연구기간은 2020년 11월부터 12월까지이었고, 분석대상은 227명 이었다. 자료는 기술적 통계, t-tset, ANOVA, Pearson correlation과 Stepwise multiple regression으로 분석 하였다. 그 결과 삶의 만족에 영향을 미치는 요인은 대학생활스트레스, 경제상태, 대인관계가 유의한 영향을 미치며 설명력은 27.1%이었다. 일반적 특성에 따른 삶의 만족과의 관련성에서는 대학생활만족도(F=5.88, p=.003), 성적(F=7.07, p=.001), 대인관계(F=8.80, p=.000), 경제상태(F=10.53, p=.000)에서 차이가 있었으며, 삶의 만족과의 상관관계에서는 대학생활스트레스와 삶의 만족(r=-.436, p<.001)과 통계적으로 유의한 음의 상관관계로 나타났다. 결론적으로, 간호대학생의 삶의 만족을 충족시키기 위해서는 교육환경을 개선하여 학업스트레스를 줄이고, 효과적인 의사소통을 활용한 긍정적 대인관계를 유지 및 상담활동 등 적극적으로 정보를 제공해 줌으로써 경제문제를 해결할 수 있는 전략도 필요한 것으로 보인다.

• 문화기술의 융합
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• 제8권3호
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• pp.521-528
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• 2022

본 연구는 전문대학생을 대상으로 지각된 스트레스, 자기효능감, 대인관계능력이 대학생활적응에 미치는 영향을 확인하기 위해 시도되었다. 연구참여자는 B시의 전문대학생 2,956명을 대상으로 하였다. 자료분석은 SPSS 22.0 프로그램을 이용하여 실수, 백분율, 평균, 표준편차, t-test, ANOVA, 피어슨 상관계수, 다중회귀분석으로 분석하였다. 대상자의 대학생활적응은 평균 3.56±0.66점이었고, 일반적 특성에 따른 대학생활적응의 차이는 학부(F=9.932, p<.001), 학과 친구의 수(F=5.681, p<.001), 친밀한 교수 여부(t=-3.739, p<.001)에서 유의한 차이를 나타냈다. 대상자의 대학생활적응은 지각된 스트레스(r=-.543, p<.001)와 부적상관관계, 자기효능감(r=.667, p<.001), 대인관계능력(r=.679, p<.001)과 정적상관관계를 나타냈다. 대상자의 대학생활적응에 영향을 미치는 요인은 지각된 스트레스(β=-.191, p<.001), 자기효능감(β=.280, p<.001), 대인관계능력(β=.394, p<.001)으로 나타났고, 설명력은 56.7%로 나타났다. 본 연구결과를 통하여 간호대학생의 대학생활적응을 높이기 위한 교육 및 프로그램의 개발이 필요하다.

• 한국간호교육학회지
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• 제18권1호
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• pp.5-13
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• 2012

Purpose: The purpose of this study was to investigate the factors affecting adaptation to school life of freshmen enrolled in nursing at a Junior College. Method: The data were collected from questionnaires filled out by 312 nursing students in two schools at J and I city from March 7-11, 2011. Data were analyzed using the SPSS/WIN18 program. Result: Self-esteem and adaptation to school life were higher than previous advanced research showed, self-efficacy was moderate and stress to school life was lower than other studies. School adaptation level was related to satisfaction of friendship, school life and the nursing program. The subjects who have chosen nursing by themselves and male students scored higher in their school adaptation. The greatest factors affecting adaptation to school life were satisfaction of school life and stress respectively. Conclusion: Inpre-admission, enough information about nursing school life through experience of previous students must be given. Then, a school adaptation program which incorporates counseling and mentoring should be provided for supporting understanding of school life.

• 기본간호학회지
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• 제23권4호
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• pp.393-401
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• 2016

Purpose: The purpose of this study was to examine the relationships among sexual function, sexual stress, and quality of life in middle aged women patients with diabetes mellitus. Methods: Data were collected through questionnaires distributed to 154 middle aged women patient with diabetes mellitus in one hospital. Results: The mean sexual function score was $12.99{\pm}9.11$. There were statistically significant differences in sexual function according to age, level of education, employment status, time of being diagnosed with diabetes mellitus, number of complications, self-monitoring of blood glucose, menopausal status, and level of glycosylated hemoglobin. The mean sexual stress score was $26.99{\pm}16.88$. The score of quality of life was $79.12{\pm}14.30$. There were statistically significant differences in quality of life according to level of education. Sexual function was negatively correlated with sexual stress (r=-.46 p<.001) and positively correlated with quality of life (r=.32, p<.001), while sexual stress was negatively correlated with quality of life (r=-.36 p<.001). Conclusion: Higher sexual dysfunction in middle aged women patients with diabetes mellitus was correlated with lower sexual stress and improved quality of life, while lower sexual stress was correlated with improved quality of life.