This study examined the impact of two bacterial strains, H05E-12 and H05R- 04, on alleviating non-irrigation-induced stress and its subsequent effects on the fruit productivity of sweet pumpkin plants. When subjected to non-irrigation-induced stress, the lipid peroxidation, proline, total phenol, and total soluble sugar content significantly decreased in plants treated with either H05E-12 or H05R-04 compared to the control. In a greenhouse experiment under non-irrigated conditions, H05E-12-treated plants exhibited higher stomatal conductance than the control, although there was no significant change in the soil plant analysis development (SPAD) value due to treatment. Upon re-watering, an increase in fruit diameter was observed in H05E-12-treated plants, and the L-ascorbic acid content in the fruit also showed a significant increase compared to the control. The H05E-12 strain was identified as Kushneria konosiri. To the best of our knowledge, this is the first report detailing the beneficial effects of K. konosiri on the alleviation of non-irrigation-induced stress and the promotion of plant growth in sweet pumpkin plants.

Today’s customer service providers, who have the greatest impact on customer satisfaction, are experiencing severe stress and job burnout due to various causes. Unlike general companies, the corporation has a relatively high level of dissatisfaction with customer service since there is a large conflict between the provision of kindness and the reasonable handling of civil complaints according to laws and regulations. In order to analyze the environment of the NPS’ customer service providers, 5.583 branch employees working at the National Pension Service and 407 call center employees were surveyed online using the questionnaire function of the Enterprise resource planning system. The contents of the survey consisted of a survey on customer-facing employees, the level of awareness of customer-facing workers protection measures, and opinions on improvement and supplementation related to customer-facing workers protection measures. As a result of the survey, 72.8% of the total respondents experienced grievance complaints, and the proportion of call center employees was even higher at 89.0%. In addition, both the branch and the call center had the largest share of complaints about obstruction of business, unreasonable demands, abusive language, and verbal abuse. More than 40% of call center employees in their 20s and 30s experienced the highest frequency of complaints 13 or more times a year. The most difficult thing in the process of responding to complaints was that both branch offices and call centers had insufficient psychological recovery time, lack of space, and lack of help from colleagues and superiors. Based on the survey analysis, it is suggested to establish a countermeasure through case analysis rather than the right to suspend work for civil complaints that cannot be handled, such as customized manuals and action strategies for the age group with high grievance complaints.

본 연구는 청소년의 음악 활동은 청소년이 정서적으로 안정되면서 스트레스 감소와 자아존중감 향상에 긍정적인 효과를 기대할 수 있음을 선행연구들을 통하여 고찰하고자 한다. 선행연구 결과 실험집단의 청소년들이 음악 활동을 진행하면서 사회성이 부족한 청소년들에게 음악 활동을 적용하여 우울감 향상과 낮은 자아존중감 향상에 도움을 주며 자아존중감이 더욱 긍정적인 방향으로 향상되었음을 밝혔다. 그리고 음악 활동을 통해 감정을 표현하면서 공부에 대한 압박감과 욕구불만에 대한 스트레스, 친구 관련, 부모 관련, 교사 관련, 자기 관련 등의 스트레스를 감소시킬 수 있다. 그러므로 음악 활동이 청소년의 정서 능력 향상에 긍정적인 영향을 미치며 청소년의 스트레스에 긍정적인 영향을 주는 중요한 활동임을 확인하였으며, 음악 활동 관련한 꾸준한 연구의 필요성을 제시하는 바이다.

초강인 AISI 4340강을 850˚C에서 2시간 동안 오스테나이징 처리 후 수냉하고, 250, 400, 600˚C에서 각각 2시간 동안 템퍼링 처리를 하였다. AISI 4340강의 인장 특성은 상온에서 측정되었다. AISI 4340강 위에 니켈 전해도금된 것과 도금되지 않은 시편의 분극 특성이 3.5wt%NaCI 수용액과 인공해수에서 측정되었다. AISI 4340강위에 니켈 전해도금된 시편은 500mV(vs. Ag/AgCI)이하의 전위에서 부식 저항이 크게 향상되었다. 그러나 1A/cm2의 전류밀도에서 30분 이상 니켈 전해도금된 시편은 도금층에 불순물과 기공이 형성되었기 때문에 AISI 4340강의 부식 저항은 감소되었다. AISI 4340강의 수소취화형 응력부식균열을 여러 작용 응력과 음극인가전력에서 U-bend 시편을 이용하여 IN 3.5 wt% NaCI 수용액에서 조사되었고, 수소취화형 응력부식균열 거동은 주사전자현미경으로 조사되었다.