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China’s Natural Resource Appetite in Brazil
Sigfrido Burgos Caceres,Sophal Ear 한국라틴아메리카학회 2011 라틴아메리카연구 Vol.24 No.2
This essay deals with the many connections between Brazil and China, as it examines the fundamental drivers of this accretive friendship. Brazil, like China, is a rapidly growing economic giant with a large resource base. Brazil has experienced an average growth of 7 per cent and China of 10 per cent. These growth rates require large amounts of energy sources, natural resources and raw materials. Both countries are positioned to benefit from increased rapprochement: China needs Brazil to supplement its rising commodities needs, and Brazil needs China to finance its industrial and manufacturing investments. Today, China is Brazil’s leading trade partner, replacing the United States and emerging as a viable ally at a time of waning hegemonic control. As large oil deposits lie 150 miles off the Brazilian coast, China is attentive to Brazil’s wishes, as well as to its desires to rightly develop the trillion dollar oil boom that is currently taking place.
Luján Lidianys María Lewis,Rosas-Burgos Ema Carina,Brauer Josafat Marina Ezquerra,Burboa-Zazueta María Guadalupe,Assanga Simon Bernard Iloki,Castro Teresa del Castillo,Penton Giselle,Plascencia-Jatome 한국미생물·생명공학회 2022 Journal of microbiology and biotechnology Vol.32 No.8
Cephalopods, in particular octopus (Octopus vulgaris), have the ability to alter their appearance or body pattern by showing a wide range of camouflage by virtue of their chromatophores, which contain nanostructured granules of ommochrome pigments. Recently, the antioxidant and antimicrobial activities of ommochromes have become of great interest; therefore, in this study, the pH-dependent redox effect of the extraction solvent on the antioxidant potential and the structural characterization of the pigments were evaluated. Cell viability was determined by the microdilution method in broth by turbidity, MTT, resazurin, as well as fluorescence microscopy kit assays. A Live/ Dead Double Staining Kit and an ROS Kit were used to elucidate the possible inhibitory mechanisms of ommochromes against bacterial and fungal strains. The results obtained revealed that the redox state alters the color changes of the ommochromes and is dependent on the pH in the extraction solvent. Natural phenoxazinone (ommochromes) is moderately toxic to the pathogens Staphylococcus aureus, Bacillus subtilis, Salmonella Typhimurium and Candida albicans, while the species Pseudomonas aeruginosa and Pseudomonas fluorescens, and the filamentous fungi Aspergillus parasiticus, Alternaria spp. and Fusarium verticillioides, were tolerant to these pigments. UV/visible spectral scanning and Fourier- transform infrared spectroscopy (FTIR) suggest the presence of reduced ommatin in methanol/ HCl extract with high intrinsic fluorescence.
돈분 액비 저장조 내 고착슬러지 제거 효율 향상을 위한 용해 촉진제 개발 및 성능 평가
이도현(Do Hyun Lee),Ana Gabriela Mendoza Burgos,명재욱(Jaewook Myung) 유기성자원학회 2022 유기성자원학회 학술발표대회논문집 Vol.2022 No.추계
돈분 액비 저장조 내에 발생하는 고착슬러지는 불균일한 폭기 및 액비 미배출로 인해 발생하며, 이는 액비 저장 용량 감소, 해충 서식지 제공, 돈사 내 악취의 원인으로 지적되어 왔다. 이를 해결하기위해, 본 연구에서는 고착슬러지 입자를 용매 내에 분산을 촉진하는 이온성 분산제와 고착슬러지 입자의 분해를 촉진하는 산화제를 주성분으로 하는 용해제를 개발하였다. 개발된 용해제는 현장에서 채취한 고착슬러지의 희석액에 투입한 후 일정 유량의 공기를 20일간 주입하여 시중에 판매되는 고착슬러지 용해제와 비교 실험을 통해 성능을 평가하였다. 상등액 비교 분석 결과, 자체 개발한 용해제가 적용된 고착슬러지 현탁액에서 높은 용존 화학적 산소 요구량 및 감소된 입자 크기를 보였다. 하부 잔여물의 거동 파악을 위한 점도 측정 결과, 자체 개발한 용해제가 적용된 현탁액 시료에서 상대적으로 낮은점도를 보여, 이를 통해 잔여물의 물리적 제거가 용이한 것을 확인하였다. 이러한 연구 결과는 향후양돈장 내 고착슬러지의 제거 효율을 높여 돈사 환경 개선에 이바지할 수 있을 것으로 기대한다.
Utility of medical simulation in neurovascular critical care education
Sandra Mass-Ramírez,Hernán Vergara-Burgos,Carmen Sierra-Ochoa,Ivan David Lozada-Martinez,Luis Rafael Moscote-Salazar,Tariq Janjua,Md Moshiur Rahman,Sabrina Rahman,Yelson Alejandro Picón-Jaimes 대한신경집중치료학회 2021 대한신경집중치료학회지 Vol.14 No.1
Simulation has shown good results in medical scenarios in which the patient’s problem can be solved by following protocols previously established in clinical practice guidelines. Therefore, the implementation of simulation programs in neurocritical care improves the outcomes of patients at clinical centers because a properly trained professional will be able to provide the most effective care in the shortest time possible, safeguarding the patient’s life. Some learning and simulation models that can be included in medical education to improve neurocritical vascular care include task trainers, full-body mannequins, standardized patients, and computer-based simulation. Specifically, medical simulation in academic training programs in health sciences has a great impact on the development of specific skills, which could potentially reduce medical-legal and economic issues, improve care, and result in the management of clinical events. Simulation is established as an essential educational tool, allowing the instruction of knowledge from an interactive perspective and offering a broader vision when it comes to medical practice. The objective of this article is to present evidence related to the usefulness and impact of medical simulation in neurovascular critical care education.