This study investigates social media posts on Twitter concerning cryptocurrency marketing. We applied unsupervised Latent Dirichlet Allocation (LDA) topic modeling and sentiment analysis techniques to 98,716 tweets to examine the Twitter content for subjects and sentiments related to cryptocurrency. We discovered that tweets about cryptocurrency fell into four categories, with “cryptocurrency trading,” “NFT airdrop,” “cryptocurrency affiliate program,” and “Dogecoin on social media” being the most popular. Most of the topics had positive sentiments. Theoretical and practical implications for developing cryptocurrency marketing communication strategies are discussed.

본고의 목적은 홍콩 교육국이 발행한 비화교 학생들의 중국어 학습에 관한 문서를 소개한 후 성공적인 몰입교육에 대한 원칙이 있는지 조사하기 위함이다. 선행 연구 고찰에서 중국어를 제2외국어로 가르치는 원리 유도, 기원 및 교원 제공. 비계 이론, 포괄적인 입력 가설 및 출력 가설뿐만 아니라 몰입 교습의 4단계 및 관련 교수 전략을 논하였다. 또한 아동을 대상으로 한 제2외국어 학습의 적절한 교육 전략을 해석하고. 몰입 교육의 실행 과정에서 교사들은 우선 진행되고 있는 몰입 수업의 오류를 인식한 후, 몰입수업의 개념과 실천을 확정하고, 수업의 각종 효과적인 수업전략을 생각하며, 간략한 "PRAISE" 등 4가지 소통전략 등을 견지해야 한다. 몰입교육을 추진할 때, 교사의 수업 목표가 명확해야 하며, 교수전략은 적절하고 효과적이어야 하며, 계획내용은 전반적 고려를 필요로 하며, 행정 방면에서 학교측의 지원과 협조가 필요하다. 이런 것들은 모두 몰입교육 성공의 요소이다.

Insect growth regulators (IGRs) are insecticides that disrupt the normal development of target insects. Among the IGR insecticides, juvenile hormone (JH)-related IGRs are of particular interest because they stimulate or interfere with the formation of JH receptor complex. In the precious studies, novel JH-related IGRs with JH agonist (JHA) and antagonist (JHAN) activity were identified by using yeast two-hybrid system transformed with the Aedes aegypti JH receptor complex. In this study, the transcriptomic responses of Aedes albopictus were investigated upon JHA and JHAN, respectively. These results will provide important information about understanding of impact of JH-related IGRs in transcription level.

Insect growth regulators (IGRs) are insecticides that disrupt the normal development of target insects by inducing symptoms such as premature molting or supernumerary larval stages. Juvenile hormone (JH)-based IGRs are of particular interest because they simulate or interfere with the formation of juvenile hormone receptor complex. Insect larvae generally have been poorly susceptible to JH agonists (JHAs) because endogenous JH titer is already high in the larval stage. In contrast, JH antagonists (JHANs) might be more effective for control of target pests in larval stages through interference in the status quo action of JHs. In this study, we tested 2,354 chemical compounds using the yeast-two hybrid system to identify JHANs. Among them, K265674 sample was selected and its insecticidal activity was evaluated against Aedes albopictus larvae. These results may be useful for development of novel IGR insecticide.

Insect growth regulators (IGRs) are insecticides that disrupt the normal development of target insects by inducing symptoms such as premature molting or supernumerary larval stages. IGRs are categorized into three types based on their mode of action. One of the them is classified as juvenile hormone agonists (JHAs). In recent studies, we identified juvenile hormone antagonists (JHANs) from plant extracts. In order to identify a novel juvenile hormone agonists and antagonists, we tested 2,354 chemical compounds using the yeast-two hybrid system. Among them, 2 JHAs and 4 JHANs were selected and their insecticidal activities were evaluated against Aedes albopictus larvae. These results may be useful for development of novel IGR insecticides.

Most of recommended potato varieties in Korea are white skin colored. Purple skinned potatoes have been recognized as being effective in the prevention of gastric disease. A new variety “Jaseo” has dark purple skin and white flesh colors, and attractive r

‘Jowon’ is a new early-maturing potato variety for table use. It has spreading growth habit with narrow oval leaves. Its tubers are attractively round with white skin and light yellow flesh color. The yielding ability of Jowon is similar to Superior. Jowo