The influence of cardiopulmonary bypass on pediatric pharmacokinetics

Children undergoing cardiac surgery with cardiopulmonary bypass receive many drugs. There is not much information regarding the influence of cardiopulmonary bypass on the pharmacokinetics of these drugs. In this thesis we describe the research we have performed regarding this subject at the Erasmus MC

Korean Immigrants and their Aesthetic Perspectives on Appearance

Beginning in the late 1960s, mass immigration has increased the diversity of ethnic groups in American society (Alba & Nee, 2003). As the geography of U.S. immigrant population has shifted from Europe to Asia, Africa, and Latin America, a more favorable environment has been provided for nonwhite immigrants than in the past (Alba & Nee, 2003). Current immigrants think that cultural differences in society are valuable and express interest in maintaining their own cultural origins and cultural objects. Different values and views co-exist in contemporary American society

The level of air pollution in the impact zone of coal-fired power plant (Karaganda City) using the data of geochemical snow survey (Republic of Kazakhstan)

Coal-fired power plants emissions impact the air quality and human health. Of great significance is assessment of solid airborne particles emissions from those plants and distance of their transportation. The article presents the results of air pollution assessment in the zone of coal-fired power plant (Karaganda City) using snow survey. Based on the mass of solid airborne particles deposited in snow, time of their deposition on snow at the distance from 0.5 to 4.5 km a value of dust load has been determined. It is stated that very high level of pollution is observed at the distance from 0.5 to 1 km. there is a trend in decrease of dust burden value with the distance from the stacks of coal-fired power plant that may be conditioned by the particle size and washing out smaller ash particles by ice pellets forming at freezing water vapour in stacks of the coal-fired power plant. Study in composition of solid airborne particles deposited in snow has shown that they mainly contain particulates of underburnt coal, Al-Si- rich spheres, Fe-rich spheres, and coal dust. The content of the particles in samples decreases with the distance from the stacks of the coal-fired power plant

Korean immigrants and their aesthetic perspectives on appearance

University of Minnesota Ph.D. dissertation. December 2013. Major: Design. Advisor: Marilyn R. DeLong. 1 computer file (PDF); xi, 163 pages, appendices A-B.In the United States, as the population of immigrants is constantly increasing, the adaptation of immigrants to the host society emerges as an important issue. Cultural differences between the culture of origin of immigrants and the host culture and dynamics of these two cultures shape their migratory process in the United States. The sense of belonging into the host culture as well as their culture of origin are simultaneous and often conflict with the formation of social identity. The needs for inclusion and differentiation in their dual or sometimes multiple cultural contexts make an impact on immigrants' attitudes and behaviors concerning appearance. Therefore, this study focuses on the influence of migratory experience and social identity of Korean immigrants both in their new culture and culture of origin towards their aesthetic perspectives on appearance. Conversations with thirty first generation Korean immigrant women show that immigrants negotiate and plan their strategic practices related to their appearance. This helps them balance the needs for inclusion and differentiation in dual cultural contexts. In this way they resolve the conflicts coming from different cultural values, ideals, thoughts, and standards of the host culture and heritage culture and relationships with peers in Korean society, other immigrants in Korean immigrant community, and mainstream Americans. These practices are shown in two appearance forms in choosing to wear the same ensemble for both contexts or two ensembles for each context

Interference Alignment in 2-user X Channel System with Orthogonal and quasi-orthogonal Space-time Block Codes

본 논문에서는 각 단말에 2개 이상의 안테나의 간섭 정렬을 이용한 X채널에서 직교 및 준직교 시공간 블록 부호를 통하여 더 높은 다이버시티와 전력 이득을 달성하고자 했다. 제안한 방법으로 다이버시티 차수는 직교 시공간 블록부호에서 최대에 도달한 반면, 준직교 시공간 블록 부호에서는 유효 채널 행렬의 비 직교성에 의해 약간의 성능 저하가 나타났다. 수신기의 유효 채널 행렬에서의 유리한 구조에 의해 단순 제로 포싱 수신기는 최대 다이버시티 차수를 달성하는 반면, 간섭 제거 수신기는 성능이 저하되었다. 기존의 방법과 비교했을 때, 시뮬레이션 결과는 제안된 방법이 같은 스펙트럼 효율을 얻으면서, 3-4개의 안테나의 각 단의 직교 시공간 블록 부호의 경우 각각 목표 비트 에러율 10-4 에서 14dB와 16.5bB의 이득을 얻는 것을 증명하였다. 또한 4개의 안테나의 각 단의 준직교 시공간 블록 부호의 경우 같은 목표 비트 에러율에서 10dB의 이득을 얻었다

Flow cytometric fluorescence pulse width analysis of etoposide-induced nuclear enlargement in HCT116 cells

Fluorescence pulse width can provide size information on the fluorescence-emitting particle, such as the nuclei of propidium iodide-stained cells. To analyze nuclear size in the present study, rather than perform the simple doublet discrimination approach usually employed in flow cytometric DNA content analyses, we assessed the pulse width of the propidium iodide fluorescence signal. The anti-cancer drug etoposide is reportedly cytostatic, can induce a strong G2/M arrest, and results in nuclear enlargement. Based on these characteristics, we used etoposide-treated HCT116 cells as our experimental model system. The fluorescence pulse widths (FL2-W) of etoposide-treated (10 μM, 48 h) cells were distributed at higher positions than those of vehicle control, so the peak FL2-W value of etoposide-treated cells appeared at 400 while those of vehicle control cells appeared at 200 and 270. These results were consistent with our microscopic observations. This etoposide-induced increase in FL2-W was more apparent in G2/M phase than other cell cycle phases, suggesting that etoposide-induced nuclear enlargement preferentially occurred in G2/M phase cells rather than in G0/G1 or S phase cells

The Potential of Portable AR in Physics Education: A Study on Student Perceptions

Integrating portable augmented reality (AR) into physics education has the potential to enhance student engagement and learning outcomes. This study investigates students\u27 perceptions of the appeal and effectiveness of the Traveling Virtual Lab (TVL), a solar-powered AR learning kit designed to improve physics education in the Philippines. A quantitative research design was employed, utilizing the "Student Acceptance of Virtual Laboratory questionnaire" adapted from Park (2009). The sample consisted of 58 students, with a balanced gender distribution and a majority at the tertiary-education level. Descriptive and inferential statistical analyses were performed to address the research questions. The results indicate that students perceive TVL as appealing and effective for learning physics concepts, with mean ratings of 3.9 for both variables. No significant differences were found in perceptions based on gender or grade. This study highlights the potential of portable AR to enhance physics education by providing immersive and interactive experiences that can visualize complex concepts and overcome resource constraints. However, challenges remain, including technological accessibility and the need for training teachers. These findings contribute to the growing body of literature on AR in education and have implications for the development and implementation of virtual laboratory technologies, particularly in resource-constrained settings. Future research should focus on addressing implementation challenges and exploring the long-term impact on student learning outcomes