본 연구는 부모의 양육스타일이 유아의 사회적 기술에 미치는 영향을 분석 하고, 이 관계에서 유아의 정서조절능력이 어떠한 매개역할을 수행하는지를 검 증하고자 하였다. 이를 위해 서울 및 경기도에 거주하는 만 3세~5세 유아의 부 모 241명을 대상으로 설문조사를 실시하였으며, 수집된 자료는 SPSS 25.0 프 로그램을 활용하여 기술통계, 상관분석, 위계적 회귀분석을 실시하였다. 연구결과, 권위적 양육스타일은 유아의 정서조절능력과 사회적 기술에 유의 한 정(+)적 영향을 미쳤으며, 정서조절능력은 이들 간의 관계를 부분 매개하는 것으로 나타났다. 권위주의적 양육스타일 또한 사회적 기술에 부(–)의 영향을 주었으며, 이 역시 정서조절능력의 부분 매개효과가 확인되었다. 반면, 허용적 양육스타일은 사회적 기술에 대한 직접효과가 정서조절능력을 포함한 회귀모 형에서 유의하지 않게 나타나, 매개효과가 성립되지 않았다. 이러한 결과는 정서조절능력이 부모의 양육행동과 유아의 사회적 기술 간 관계를 매개하는 핵심 심리적 기제로 기능함을 시사한다. 본 연구는 유아의 사 회성 발달을 지원하기 위한 부모교육 및 정서지도 개입의 이론적 기반을 제공 하며, 양육스타일과 정서조절능력 간 구조적 관계에 대한 이해를 확장하는 데 의의가 있다.

Laetiporus sulphureus, commonly known as ”chicken of the woods”, due to its chicken-like flavor, texture, and aroma, is a species of mushroom with high potential as an alternative to meat, given its reported protein content of 11% to 21%. This study was conducted to determine the optimal substrate composition for efficient mycelial production of L. sulphureus for use as an alternative to meat. Two types of sawdust, Populus deltoides and Quercus acutissima, and eight nutrient sources were applied in single and mixed compositions. Analysis of mycelial growth revealed that the media containing P. deltodies and Q. acutissima, only supplemented with beet pulp, had the highest mycelial extension, of 106.7 mm and 101.3 mm, respectively. In addition, protein content analysis revealed that the combinations with the highest protein content in mycelia were cultivated on P. deltodies sawdust supplemented with a mixture of beet pulp and corn (21.3%), and on Q. acutissima sawdust supplemented with cottonseed hull (22.0%). The optimal substrate compositions identified in this study will serve as fundamental data for the large-scale production of L. sulphureus mycelia as an alternative to meat.

Sixty dried agricultural products were collected from February to July 2024. Among these, 16 samples were randomly purchased from large supermarkets and local markets in Gwangju, and 44 were obtained from online marketplaces. Only products labeled with phrases such as “No Food Additives” or “100% Raw Ingredients” were selected for analysis. The aims of this study were to determine the concentrations of sulfur dioxide, preservatives, artificial colorants, and toxic heavy metals (lead and cadmium) in dried agricultural products, assess their risk indices, and provide foundational data to establish relevant regulatory standards. The results revealed that sulfite compounds were detected in some samples, with the highest sulfur dioxide concentrations found in gourds (82.99- 1046.95 mg/kg), apricots (10.87-529.45 mg/kg), and konjac powder (23.59-475.92 mg/kg). The highest sulfur dioxide risk index was observed in persimmons, with values ranging from 4.74% to 16.61% for male and 6.26% to 26.84% for female consumers. Sweet potatoes followed, with risk index values of 6.87% and 11.29% for male and female consumers, respectively. All the samples exhibited sulfur dioxide risk indexes below 100%, indicating safety. No preservatives or artificial colorants were detected in any of the samples, suggesting that sulfites can be used as alternatives to preservatives in certain products. The concentrations of lead in dates (9.55-137.09 μg/kg) and gourds (10.76-49.14 μg/kg) and cadmium in gourds (16.36-51.76 μg/kg) were within safe limits, with risk indexes below 100%. This study provides crucial baseline data for evaluating the safety of dried agricultural products. Furthermore, it underscores the need for more comprehensive risk assessments that consider the interactions between sulfur dioxide, heavy metals, and consumption patterns. Lastly, it highlights the necessity of strengthening regulatory standards to better protect consumers.