본 연구는 청소년의 친구관계가 공격성을 매개로 하여 현실 비행에 영향을 미치는지를 검증하였다. 이를 위해 2018년도 한국아동·청소년패널조사에 참여한 중학생 2,590명의 자료를 분석하였다. 분석방법으로는 기술통계, 상관분석 및 매개효과분석을 활용하였다. 연구 결과, 기술통계 분석에서 청소년의 친구관계 평균 이 공격성이나 비행의 평균보다 높은 것으로 나타났다. 상관분석 결과, 친구관계, 공격성, 비행 간에는 모두 유의한 정적(+) 상관관계가 있는 것으로 확인되었다. 매개효과분석을 통해 친구관계가 비행에 직접적인 영 향을 미치는 동시에, 공격성이 그 관계를 부분 매개하는 것으로 확인되었다. 이러한 결과를 바탕으로, 본 연구는 청소년의 친구관계를 긍정적으로 형성·유지하면서 공격성과 같은 부정적 정서를 완화할 수 있는 사회복지 실천 프로그램 및 정책 개발의 필요성을 제언하였다.

The primary objective of the study is to analyze and evaluate the situation and trends of inland waterway traffic accidents in Vietnam from 2017 to 2024. The study employs reliable secondary data sources, which are analyzed using statistical methods and heatmap applications to examine and assess trends in inland waterway traffic accidents in Vietnam. The results indicate a steady increase in both the number and scale of inland waterway accidents nationwide over the years. Additionally, the accident-prone areas in key inland waterways will be identified. Based on these findings, the research team has proposed recommendations and solutions aimed at improving traffic safety on Vietnam's inland waterways.

Growth is a fundamental and vital characteristic of abalone, regulated by both cell number and size, and modulated by growth-related genes. The mollusk-like growth factor (MLGF) is a secreted protein that plays a key role in the growth and development of Pacific abalone. In this study, the growth-specific expression of Hdh-MLGF were analyzed under different conditions commonly encountered by Pacific abalone in aquaculture systems. The expression of Hdh-MLGF varied significantly with growth patterns, showed higher expression in rapid-growing individuals and lower expression in slow-growing abalone. Under starvation conditions, Hdh-MLGF expression was downregulated as the duration of starvation progressed. Under thermal stress, Hdh-MLGF expression increased during the first 12 hours at 25 °C stress. However, at 30 °C, the highest expression was recorded after 6 hours of thermal stress. These results provide valuable insights for future research on this growth factor in abalone and its aquaculture management.

The increasing global economic, social, and political interdependence has led to expanding trade in goods and services. The WTO facilitates international trade by providing a nondiscriminatory trading environment to all member states. Afghanistan started the WTO accession in 2009 and joined as the 164th member on December 18, 2015. This piece examines the legal implications of the WTO membership on Afghanistan’s trade and economy. While membership will expand trade, attract foreign investment, and increase Afghanistan’s market share worldwide, it also means harmonizing domestic regulations with the WTO standards. In addition, lower tariffs on imported goods threaten local industries, leading to job losses, industrial shrinkage, and reduced government income. The study’s findings show that, despite short-term vulnerability, joining the WTO has long-term benefits such as economic growth, increased investment, reduced cost of living, and fairer trade structure.

This paper explores the illegal Israeli occupation of Palestinian territories, focusing on the West Bank and Gaza after 1967. It employs a qualitative research approach, analyzing primary and secondary sources to examine the legal ramifications of Israel’s ongoing occupation and settlement expansion, which violate international law. The findings highlight that, despite various international resolutions, Israel continues its unlawful presence. Key legal rulings, such as the International Court of Justice’s decision of July 19, 2024 and a UN General Assembly resolution in September 2024, reaffirm the illegality of Israel’s actions. Nonetheless, Israel has ignored these calls for withdrawal and persists in expanding settlements. The paper argues that the UN member states must enforce international legal rulings and hold Israel accountable through international courts. It advocates for the imposition of economic and diplomatic sanctions by the UN Security Council to curb settlement expansion and dismantle existing illegal settlements, emphasizing the need for coordinated international efforts to achieve justice for Palestine.

Sea buckthorn (Hippophae rhamnoides L.) is a thorny, nitrogen-fixing shrub native to Europe and Asia. Known as the “vitamin tree,” sea buckthorn is an important fruit resource for the Mongolian people. However, comparative studies on the antioxidant activity of wild sea buckthorn in Mongolia are still lacking. Therefore, the objective of this research was to determine the optimal extraction method to maximize its functional properties and to evaluate the antioxidant and antimicrobial activities of wild Mongolian sea buckthorn berry extracts. The wild Mongolian berries were extracted using hot water, 70% methanol, and 70% ethanol through three different extraction methods: homogenizer-assisted extraction, ultrasonication-assisted extraction, and Soxhlet extraction. The antioxidant and antimicrobial activities of the sea buckthorn extracts were assessed by measuring total phenolic content (TPC), total flavonoid content (TFC), DPPH free radical scavenging activity, ferric reducing antioxidant power (FRAP), reducing power, nitric oxide (NO) radical scavenging capacity, nitrite scavenging activity, and the diameters of inhibition zones against foodborne pathogens. The DPPH free radical scavenging capacity and FRAP of the sea buckthorn berries extracted using Soxhlet with 70% ethanol were 57.36% and 1.035 mg FSE/g, respectively. The Soxhlet 70% ethanol extract also exhibited the highest reducing power (1.961), NO radical scavenging ability (64.7%), and nitrite scavenging ability (62.4%) among the tested samples. The hot water, 70% methanol, and 70% ethanol extracts exhibited concentration-dependent antimicrobial activity. The homogenizer-assisted 70% ethanol extract formed a clear inhibition zone of 13 mm against Salmonella enteritidis.

Background: During daily activities, stability is maintained to enhance the function of muscles surrounding the lumbopelvic and hip structures. The core muscles such as the rectus abdominis (RA), external oblique (EO), and internal oblique (IO) responsible for this stability. One effective static exercise for strengthening these muscles is the plank. Objects: This study aimed to compare abdominal electromyographic activation when an unstable support surface was applied to the upper and lower extremities during a standard and a knee plank. Methods: A total of 30 adults (15 males and 15 females) participated in this study. Surface electromyography electrodes were placed on the RA, EO, and IO muscles. Data were collected under six conditions for males, including two plank postures (standard and knee planks) and three unstable surface conditions (a dynamic balance cushion applied to the upper extremities, lower extremities, or no cushion). Female participants performed only the knee plank. A mixed-effects model with a random intercept was used to analyze muscle activation across plank posture and surface position, with statistical significance set at α = 0.05. Results: In males, the standard plank elicited greater muscle activation than the knee plank across all muscles (p < 0.0001). Additionally, applying an unstable support surface to the upper extremities significantly increased muscle activation in both plank postures in EO and IO (p < 0.001). Other muscle, RA, was only affected by the unstable support surface in the standard plank position only. In females, the knee plank with upper limb instability resulted in the highest muscle activation for all muscles. Conclusion: These findings highlight the importance of surface instability in core muscle engagement. However, future studies should further investigate abdominal muscle activation with a more detailed analysis and the inclusion of a control group to enhance comparative validity.

Though Farnesiferol C (FC) derived from Ferula asafoetida is known to have antiangiogenic and apoptotic effect in gastric, breast, nonsmall lung cancers, the underlying antitumor mechanism of FC is not fully understood so far. Hence, in the current study, apoptotic mechanism of FC was explored in colon cancers in association with carbon catabolite repression 4-negative on TATA-less 2 (CNOT2)/c-Myc signaling. Herein FC significantly increased cytotoxicity and reduced the number of colonies in HCT116 cells more effectively than in SW480 cells, though FC enhanced sub-G1 cell population in HCT116 and SW480 cells compared to untreated control. Consistently, FC activated the cleavages of Poly ADP-ribose polymerase (PARP) and Bax and attenuated the expression of pro-PARP and Cyclin D1 in HCT116 cells better than SW480 cells. Also, FC significantly reduced the expression of CNOT2 and c-Myc. Also, FC reduced of c-Myc stability in HCT116 cells by cycloheximide assay. Notably, CNOT2 depletion reduced the expression of c-Myc, while c-Myc depletion also attenuated the expression of CNOT2 in HCT116 cells, implying the crosstalk between CNOT2 and c-Myc. Furthermore, overexpression of c-Myc or CNOT2 promoted the expression of pro-PARP in HCT116 cells. Overall, these findings suggest that FC induces apoptosis via inhibition of CNOT2 and c-Myc in colon cancers for a potent anticancer candidate for further agriculture cultivation in Korea.

Environments inside and outside levees may exert different effects on the occurrence of mid-to large-sized mammals in riparian areas. To effectively conserve these species, it is important to understand how land cover across levees influences their presence. This study, conducted from March to June 2024 in Yeongyang, South Korea, monitored mammal occurrence using unmanned sensor cameras at 28 sites. Linear models were used to analyze mammal species diversity, non-metric multidimensional scaling (NMDS) was applied to assess species-specific habitat associations at the community level, and occupancy models were used to evaluate influential factors for each species. Our results showed that mammal species diversity increased with a higher proportion of orchards inside levees, but decreased with greater proportions of orchards inside levees, and non-irrigated arable fields outside levees. For carnivores, land cover types in inside levees-including grasslands, barren areas, and water-provided important food resources and shelter. For omnivorous and herbivorous mammals, coniferous forests inside levees played a key role by offering abundant food and shelter, whereas highly disturbed land covers such as non-irrigated fields and orchards outside levees were less suitable as habitats. To enhance habitat conservation, management efforts inside levees should prioritize maintaining grasslands and coniferous forests. Outside levees, establishing undisturbed zones with barren areas and coniferous forests may help mitigate human disturbances. These findings provide essential baseline data for developing effective conservation strategies tailored to levee-associated riparian landscapes.

무궁화(Hibiscus syriacus L.)는 여름에 크고 화려한 꽃을 피 우는 수종으로 전 세계적으로 주요한 관상수 중 하나로 재배되 고 있다. 분화 재배에 적합한 신품종 육성을 위해 꽃이 크고 개화 기간이 긴 품종 ‘근형’을 모수(母樹)로, 생육이 느리고 가지 정단부에 꽃눈이 집중적으로 형성되는 품종 ‘임진홍’을 수분수 (授粉樹)로 교배하여 단심이 크고 뚜렷한 신품종 ‘라온’을 개발 하였다. 육성과정은 2012년에 양친을 인공교배하여 총 36립의 종자를 수확하여 파종하였고, 2015년에 주요 형질을 평가하여 차대묘 9개체 중 2개체를 1차적으로 선발하였다. 2016년부터 2019년까지 1차선발된 2 개체에 대한 삽목증식과 안정성 평가 를 거쳐 최종적으로 ‘라온’을 선발하였다. ‘라온’은 중앙에 크고 뚜렷한 단심이 있는 백단심계 홑꽃이다. 꽃 직경은 84.2mm로 모수보다 작고, 가지의 길이생장이 연간 평균 13.8cm으로 모수 (연간 평균 33.0cm)보다 느리다. ‘라온’의 개화기간은 68일 정 도이며, 모수에 비해 꽃과 잎이 작고 수고가 낮아져 분화용으로 재배하기에 적합한 것으로 보인다. ‘라온’은 2020년에 제8378 호로 품종보호 등록되었다.

This study investigated the process of reclaiming Mo from calcined waste hydrotreating (CWHT) catalysts using tributyl phosphate (TBP) as an extractant with electron-withdrawing properties. Using inductively coupled plasma (ICP) technology, the optimal operating conditions for Mo recovery were determined based on the metal ion content in different processes. Considering the pH impact on metal species in solution, an acid leaching solution with 6 M sulfuric acid was employed. After 3 h of reaction, 94 wt% of the Mo was transferred from the WHT catalyst to the acid leaching solution. Adjusting the filtrate to a pH of 1.5 allowed the TBP to selectively extract over 98.8 wt% of Mo from the aqueous filter solution into the organic phase. MC-Cabe-Thiele theory predicts that a three-stage countercurrent extraction can reduce Mo to less than 0.2 wt%. Stripping moved approximately 98 wt% of the Mo from the organic to the inorganic phases. The recovered colorless organic tributyl phosphate can be used in the recycled extraction process.