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Juan Luis Gómez-Amador,Pablo David Guerrero-Suárez,Jaime Jesús Martínez-Anda,Jorge Fernando Aragón-Arreola,Andrea Castillo-Matus,Ricardo Marian-Magaña,Marcos V Sangrador-Deitos,Alan Hernández-Hernánde 대한뇌혈관외과학회 2023 Journal of Cerebrovascular and Endovascular Neuros Vol.25 No.4
Bilateral posterior communicating (pComm) artery aneurysms represent only 2% of mirror intracranial aneurysms. Usually, these are surgically approached through bilateral craniotomies for clipping. We present the case of a 50-year-old female presenting with headache and horizontal diplopia. Neurological examination revealed a left oculomotor palsy, with no other neurological deficits. Imaging studies revealed bilateral aneurysmatic lesions in both internal carotid arteries (ICA). A conventional left pterional approach was planned in order to treat the symptomatic aneurysm, and, if deemed feasible, a contralateral clipping through the same approach. The procedure was performed in a hybrid operating room (HOR), performing an intraoperative digital subtraction angiography (DSA) and roadmapping assistance during dissection and clipping. Transoperatively, a post-fixed optic chiasm was identified, with a wide interoptic space, which allowed us to perform the contralateral clipping through a unilateral approach. This technique for clipping bilateral pComm aneurysms can be performed when the proper anatomical features are met.
차집관로와 하수처리시설의 설치에 따른 도시하천의 수질변화 특성
주연연(Juan Juan Zhou),임봉수(Bong Su Lim) 大韓環境工學會 2014 대한환경공학회지 Vol.36 No.12
대전 3대하천을 대상으로 차집관로와 하수처리시설 증설로 인한 도시하천의 수질변화의 특성을 분석하였다. 지난 10년 동안 최고 수질에서 최저 수질의 차이가 가장 큰 하천지점은 하수처리시설 하류부인 갑천5(신구교) 지점이다. 반면에 최근 수질은 이 지점이 다른 지점보다 수질이 불량한 것은 하수처리시설의 방류수 영향이다. 하수처리시설 상류부에서는 대전천이 유기물질의 오염감소에서 다른 지점보다 비교적 양호한 지점인데 이는 차집관로의 유지관리 투자에 기인한 것으로 보인다. 최근 3대하천 수질은 하천수질기준치와 비교하였을 때 대부분 수질항목은 기준치 이내로 적합하였으나 상류지점인 대 전천, 유등천, 갑천3 지점의 총인은 기준치에 못 미치므로 하수처리시설 상류부가 하류부보다 차집관로의 유지관리가 더 필요하다. 하수처리시설의 방류수 수질이 하천 수질오염총량관리 지점의 목표수질에 악영향을 주기 쉬우므로 하수처리시설 유지관리의 효율성이 적극 요구된다. In this study, the characteristics of water quality change of the three streams in Daejeon were analyzed according to the expanded installation of interceptors and wastewater treatment plant (WTP). Gabcheon 5 (Singu Bridge) location showed the maximum difference of the highest and lowest concentrations in the last decade. However, the recent water quality of this location was worse than other locations, because of the impact of the effluent from the WTP. In the upstream of the WTP, the Daejeon stream was relatively better than the other locations in organic pollution reduction, and this was caused by the investment for the management of the interceptors in three streams of Daejeon. According to the water quality standard of the stream water quality, the recent water quality of the three streams in Daejeon was acceptable within them in the most of the water quality items, but because the total phosphorus concentration of the upstream such as Daejeon stream, Yudeng stream, Gabchen 3 location did not reach the standard values, a better management of the interceptor was required in the upstream of WTP than its downstream. The upstream of WTP also required a better management of the interceptor than the downstream. The operation and management of WTP was required a high efficiency because the water quality of the effluent from the WTP incurred an adverse effect to the target water quality in the location of the total water pollution load management system.
Wang Su Juan,Zhou Dan,Hu Yan Fei,Tang Cui Ming,Wang Qiao Zhi,Chen Shun Ling 한국물리학회 2021 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.79 No.3
In this work, we investigated bimetallic CumMn (m + n = 6, M = Fe, Co, Ni) clusters on the basis of the density functional theory at the M06L level. While changing the structure and composition, our team studied the geometrical structures, relative stabilities and electronic magnetic moments of these clusters. We found that the average atomic binding energies vary linearly with the number of doping atoms in the CumFen and the CumNin clusters. The values of electron affinity (EA) and the ionization potential (IP) for the CumNin clusters are closer to those of pure Cu clusters compared with the others. A negative value of the EA is only seen in CumFen clusters. The electronic magnetic moments of these clusters indicate that most of them exhibit a local minimum when doped with three atoms. Moreover, we further analyzed the HOMO–LUMO gaps, the natural population, and the geometrical structures.
Oil supplementation improved growth and diet digestibility in goats and sheep fed fattening diet
Su Chui Len Candyrine,Mohammad Faseleh Jahromi,Mahdi Ebrahimi,Wei Li Chen,Siamak Rezaei,Yong Meng Goh,Norhani Abdullah,Juan Boo Liang 아세아·태평양축산학회 2019 Animal Bioscience Vol.32 No.4
Objective: This study evaluated the growth, digestibility and rumen fermentation between goats and sheep fed a fattening diet fortified with linseed oil. Methods: Twelve 3 to 4 months old male goats and sheep were randomly allocated into two dietary treatment groups in a 2 (species)×2 (oil levels) factorial experiment. The treatments were: i) goats fed basal diet, ii) goats fed oil-supplemented diet, iii) sheep fed basal diet, and iv) sheep fed oil-supplemented diet. Each treatment group consisted of six animals. Animals in the basal diet group were fed with 30% alfalfa hay and 70% concentrates at a rate equivalent to 4% of their body weight. For the oil treatment group, linseed oil was added at 4% level (w:w) to the concentrate portion of the basal diet. Growth performance of the animals was determined fortnightly. Digestibility study was conducted during the final week of the feeding trial before the animals were slaughtered to obtain rumen fluid for rumen fermentation characteristics study. Results: Sheep had higher (p<0.01) average daily weight gain (ADG) and better feed conversion ratio (FCR) than goats. Oil supplementation did not affect rumen fermentation in both species and improved ADG by about 29% and FCR by about 18% in both goats and sheep. The above enhancement is consistent with the higher dry matter and energy digestibility (p<0.05), as well as organic matter and neutral detergent fiber digestibility (p<0.01) in animals fed oil- supplemented diet. Sheep had higher total volatile fatty acid production and acetic acid proportion compared to goat. Conclusion: The findings of this study suggested that sheep performed better than goats when fed a fattening diet and oil supplementation at the inclusion rate of 4% provides a viable option to significantly enhance growth performance and FCR in fattening sheep and goats.
Genetic Diversity of Schistosoma haematobium Eggs Isolated from Human Urine in Sudan
Juan-Hua Quan,In-Wook Choi,Hassan Ahmed Hassan Ahmed Isma,Abdoelohab Saed Mohamed,Hoo-Gn Jeong,Jin-Su Lee,Sung-Tae Hong,Tai-Soon Yong,Guang-Ho Cha,Young-Ha Lee 대한기생충학열대의학회 2015 The Korean Journal of Parasitology Vol.53 No.3
Su Liu,Xiao-Xiao Shi,Qing-Zi Zhu,Wen-Juan Jiao,Zi-Jie Zhu,Hang Yu,Gui-YaoWang,Zengrong Zhu 한국응용곤충학회 2015 Journal of Asia-Pacific Entomology Vol.18 No.1
Insect chemosensory proteins (CSPs) are small, water-soluble proteins which can bind and transport hydrophobic odorants through sensillum lymph to activate odorant receptors, thus play important roles in the olfactory recognition. In the present study, by searching the transcriptome data sets, a total of 22 candidate CSP genes were identified from Cnaphalocrocis medinalis, a serious lepidopteran rice pest in Asia. CSP proteins encoded by these genes showed typical characteristics: an N-terminal signal peptide, four conserved cysteine residues and the pattern of cysteine spacing. The expression profiles of these putative CSP genes were investigated using real-time quantitative PCR. The results showed that five genes (CmedCSP4, CmedCSP8, CmedCSP11, CmedCSP18 and CmedCSP21) were expressed primarily in antennae, suggesting their involvement in olfactory processes; whilst other genes are mainly expressed in non-olfactory tissues, such as abdomen and legs, indicating a broader physiological function for these CSPs. The findings will lead to a better understanding of the molecular mechanisms of chemoreception in C. medinalis.