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Surgical chylothorax in neonates:management and outcomes

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World Journal of Pediatrics 2018年第2期14卷 110-115页

作者： Karina miura Costa Amulya Kumar Saxena Department of Pediatric Surgery Chelsea Children's HospitalChelsea and Westminster Hospital NHS Foundation TrustImperial College LondonLondonUK Ribeirao Preto Medical School University of Sao PauloRibeirao PretoBrazil

Background Postoperative chylothorax occurs due to trauma to lymphatic vessels and can occur after any thoracic *** study reviewed recent literature to evaluate the management and outcomes of surgical chylothorax in *** PubMed database was searched for articles in English,Portuguese and Spanish from 2000 to *** were collected for surgery,chylothorax management,complications,mortality and length of hospital stay(LOS).Results Twenty studies offered 107 neonates:congenital diaphragmatic hernia(CDH)(n=76,71%),cardiac malforma-tions(n=25,23.4%),esophageal atresia(n=5,4.7%)and CDH+extralobar sequestration(n=1,0.9%).Medium-chain tri-glycerides(MCT)was the initial treatment in 52 neonates(48.6%),prednisolone+MCT in one(0.9%),total parenteral nutri-tion in 51 patients(47.7%),and three patients(2.8%)did not require any *** and somatostatin were used as second or third line treatment in 25 neonates(23.4%),and 15 neonates(14%)underwent 17 surgeries,including thoracic duct ligation(TDL)(n=9);pleurodesis(n=3)(2 patients required TDL);TDL+pleurodesis(n=2),and TDL+placement of hemostat(n=1).Complications due to the chylothorax were reported in 27 neonates(25.2%):hypoalbuminemia+hypona-tremia(n=18),hypoalbuminemia(n=4),hypoalbuminemia with cutaneous flushing as colateral effect of somatostatin(n=1),loose stool after somatostatin use(n=1),pneumonia(n=1),congestive heart failure+hypernatremia(n=1),and hyponatremia(n=1).There were 21 deaths(19.6%)and median LOS was 53.4 days(30-93.1 days).Conclusions Conservative management is appropriate as initial treatment for neonatal postsurgical *** and somatostatin are safe in neonates and surgical approach should be considered in prolonged leaks.

关键词： Chylothorax Neonate Thoracic surgery Treatment outcome

Essential cellular modules for the proliferation of the primitive cell

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Geoscience Frontiers 2018年第4期9卷 1155-1161页

作者： Koichi Higashi Yoshikazu Kawai tomoya Baba Ken Kurokawa Taku Oshima Genome Evolution Laboratory National Institute of Genetics Centre for Bacterial Cell Biology Institute for Cell and Molecular BiosciencesMedical SchoolNewcastle University Advanced Genomics Center National Institute of Genetics Earth-Life Science Institute Tokyo Institute of Technology Graduate School of Biological Sciences Nara Institute of Science and Technology

Bacteria appeared early in the evolution of cellular life on planet Earth, and therefore the universally essential genes or biological pathways found across bacterial domains may represent fundamental genetic or cellular systems used in early life. The essential genes and the minimal gene set required to support bacterial life have recently been experimentally and computationally identified. It is, however,still hard to estimate the ancient genes present in primitive cells compared to the essential genes in contemporary bacteria, because we do not know how ancestral primitive cells lived and proliferated, and therefore cannot directly evaluate the essentiality of the genes in ancestral primitive cells. The cell wall is normally essential for bacterial proliferation and cellular division of walled bacterial cells is normally highly controlled by the essential FtsZ cell division machinery. But, bacteria are capable of reverting to their cell wall deficient ancestral form, called the ＂L-form＂. Unlike ＂normal＂ cells, L-forms divide by a simple physical mechanism based on the effects of membrane dynamics, suggesting a mode of primitive proliferation before the appearance of the cell wall. In this review, we summarize the experimental and computational investigations of minimal gene sets and discuss the minimal cellular modules required to support the proliferation of primitive cells, based on L-form proliferation.

关键词： L-form Essential genes Minimal gene set KEGG module Bacteria

Optical Properties of Blue-Emitting BaAl_2S_4:Eu Thin-Films for Inorganic EL Display

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Journal of Rare Earths 2006年第Z2期24卷 119-121页

作者：郭润洪 Noboru miura Hironaga Matsumoto Ryotaro Nakano School of Science and Technology Meiji University1-1-1 Higashi-mitaTama-kuKawasaki 214-8571Japan

The optical properties of blue emitting BaAl2S4:Eu thin-films were studied. The emission peak is around 470 nm, whose FWHM (full width at half maximum) is 35 nm. The dielectric constant is 3.03 from transmission spectrum, and the optical band gap is approximately 4.6 eV. It is found that the cubic phase and orthorhombic phase exist in fabricated thin-films. Furthermore, the energy band structure of BaAl2S4 : Eu thin-films from X-ray photo-electron spectra (XPS) and the absorption spectra were analyzed.

关键词： photolumi nescence band-gap energy BaAl2S4:Eu electroluminescence dielectric constant rare earths

Spin-valley Hall phenomena driven by Van Hove singularities in blistered graphene

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npj Computational Materials 2020年第1期6卷 27-34页

作者： M.Umar Farooq Arqum Hashmi tomoya Ono Li Huang Department of Physics Southern University of Science and TechnologyShenzhenGuangdong 518055China Center for Computational Sciences University of TsukubaTsukubaIbaraki 305-8577Japan Kansai Photon Science Institute National Institutes for Quantum and Radiological Science and Technology(QST)Kyoto 619-0215Japan Department of Electrical and Electronic Engineering Kobe UniversityKobe 657-8501Japan

Using first-principles calculations,we investigate the possibility of realizing valley Hall effects(VHE)in blistered graphene *** show that the Van Hove singularities(VHS)induced by structural deformations can give ri... 详细信息

关键词： graphene valley singularities

Management and outcomes of gastric volvulus in children: a systematic review

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World Journal of Pediatrics 2019年第3期15卷 226-234页

作者： Karina miura da Costa Amulya K.Saxena Department of Pediatric Surgery Chelsea Children’s HospitalChelsea and Westminster NHS Foundation TrustImperial College LondonLondonUnited Kingdom Division of Pediatric Surgery Department of Anatomy and SurgeryRibeirao Preto Medical SchoolUniversity of Sao Paulo.Ribeirao Pr&o.Brazil

Background Gastric volvulus (GV) in children is a rare *** study reviewed management and outcomes of GV in the pediatric *** MEDLINE/PubMed,Embase,and Google Scholar databases were searched for studies in English regarding GV in patients < 18 years old between 2008 and 2017,selected by two *** were presented as percentages and ***'s exact test was used to evaluate categorical variables,and Bonferroni correction was applied for multiple *** Ninety-seven papers with 125 patients were *** median age was 24 months,with slightly female *** was the most common symptom and acute presentation occurred in the majority of *** of previous surgery/abdominal trauma was described in 12 and 3 children,*** was diagnostic for GV in most *** initial management was surgical in the majority of cases,with most of them including gastropexy,gastrostomy,or gastric *** GV was associated with acute presentation (P =0.004) and the latter with ischemia (P < 0.01).Complications occurred in 23 (18.9%) children,esophageal stenosis being the most *** were eight (6.4%) deaths,and only one recurrence 6 months after endoscopic *** median follow-up period was 12 *** inclusion of only case reports/case series,the incomplete reporting from papers,and the short followup were limitations of the *** GV occurs at a median age of 24 months and requires high suspicion and prompt management,as mortality is *** preferred surgical approach for GV includes variations of *** stenosis is the most common morbidity post-GV management.

关键词： Gastrectomy Gastric volvulus Gastropexy Gastrostomy Volvulus

Dynamic recrystallization and texture development during hot deformation of magnesium alloy AZ31

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中国有色金属学会会刊：英文版 2009年第1期19卷 55-60页

作者：杨续跃吉泽升 H. miura T. SAKAI School of Materials Science and Engineering Central South University Key Laboratory of Nonferrous Metal Materials Science and Engineering Ministry of Education Central South University College of Materials Science and Engineering Harbin University of Science and Technology Department of Mechanical Engineering and Intelligent Systems UEC Tokyo Tokyo 182-8585 Japan

The dynamic recrystallization(DRX) and texture development, taking place during hot deformation of magnesium alloy AZ31 with a strong wire texture, were studied in compression at 673 K (0.73 Tm). Two kinds of samples were machined parallelly to the extruded and transverse directions of Mg alloy rods. New fine grains are evolved at original grain boundaries corrugated at low strains and develop rapidly in the medium range of strain, finally leading to a roughly full evolution of equiaxial fine grains. Kink bands are evolved at grain boundaries corrugated and also frequently in grain interiors at low strains. The boundary misorientations of kink band increase rapidly with increasing strain and approach a saturation value in high strain. The average size of the regions fragmented by kink band is almost the same as that of new grains evolved in high strain. These characteristics of new grain evolution process are not changed by the orientation of the samples, while the flow behaviors clearly depend on it. It is concluded that new grain evolution can be controlled by a deformation-induced continuous reaction, i.e. continuous dynamic recrystallization(DRX). The latter is discussed by comparing with conventional, i.e. discontinuous DRX.

关键词：镁合金 AZ31合金连续动态热处理

Static recrystallization behavior of hot-deformed magnesium alloy AZ31 during isothermal annealing

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Transactions of Nonferrous Metals Society of China 2010年第7期20卷 1269-1274页

作者：杨续跃朱亚坤 H.miura T.SAKAI School of Materials Science and Engineering Central South University Department of Mechanical Engineering and Intelligent Systems University of Electro Communications

The static recrystallization of hot-deformed magnesium alloy AZ31 during isothermal annealing was studied at temperature of 503 K by optical and SEM/EBSD metallographic *** grain size change during isothermal annealing is categorized into three regions,*** incubation period for grain growth,rapid grain coarsening,and normal grain *** number of fine grains per unit area,however,decreases remarkably even in incubation *** leads to grain coarsening taking place continuously in the whole period of *** contrast,the deformation texture scarcely changes even after full annealing at high *** is concluded that the annealing processes operating in hot-deformed magnesium alloy with continuous dynamic recrystallized grain structures can be mainly controlled by grain coarsening without texture change,that is,continuous static recrystallization.

关键词： magnesium alloy AZ31 annealing continuous recrystallization grain growth texture

Comparative assessment of primary and secondary infection risks in a norovirus outbreak using a household model simulation

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Journal of Environmental Sciences 2016年第12期28卷 13-20页

作者： Fuminari miura Toru Watanabe Kozo Watanabe Kazuhiko Takemoto Kensuke Fukushi Department of Urban Engineering Graduate School of Engineering the University of Tokyo Department of Food Life and Environmental Sciences Faculty of Agriculture Yamagata University Department of Civil and Environmental Engineering Ehime University Institute for the Advanced Study of Sustainability the United Nations University Todai Institutes for Advanced Study(TODIAS) Integrated Research System for Sustainability Science(IR3S) The University of Tokyo

Diarrheal diseases can be transmitted via both primary infection due to exposures to contaminated materials from the environment and secondary infection due to person- to-person contacts. Usually, the importance of secondary infection is empirically assessed by fitting mathematical models to the epidemic curves. However, these empirical models may not be applicable to other epidemic cases because they are developed only for the target epidemics and they don＇t consider the detail routes of infection. In our previous study, we developed a theoretical model taking into account the various routes of infection that commonly occur in households （e.g., shaking hands, food handling, and changing diapers）. This model was made flexible and applicable to any epidemics by means of adjusting model parameters. In this study, we proposed a new index ＂Vulnerability indicator to secondary infection （VISI）＂, which expressed a ratio of secondary infection to primary infection risks and calculated this index in a simulated norouirus （NOV） epidemic that involved I0,000 households. The results demonstrated that households composed of more than three members including infant（s） had much higher levels of VlSl （5-45） than two-member-households with VlSI （0.1-4）. These results concluded that the infants were likely to be a hub of secondary infections in highly dense families and therefore careful handling of diapers was deemed indispensible in such families to effectively control the secondary infections.

关键词： Norovirus Quantitative microbial riskassessment Secondary infection

Field survey of a sustainable sanitation system in a residential house

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Journal of Environmental Sciences 2006年第6期18卷 1088-1093页

作者： Naoko NAKAGAWA Masahiro OTAKI Shinji miura Hironobu HAMASUNA Katsuyoshi ISHIZAKI Department of Human Environmental Sciences Ochanomizu University2-1-1OtsukaBunkyo-KuTokyo 112-8610Japan. City Maintenance Technical Research Center 2-9-23ShinjuShinjuku-KuTokyo 160-0023Japan Nagasaki Institute of Applied Science 536Abama-choNagasaki-shiNagasaki Pref.851-0123Japan Research Institute for a Sustainable Future Waseda University513 Tsurumaki-ChouWasedaShinjuku-KuTokyo 169-8050Japan

Sustainable sanitation is an approach for more ecological and sustainable water resources management. In this paper, we proposed one of the new integrated waste treatment systems： an ＂sustainable sanitation system＂ that includes separation of the black water from water system by a non-flushing toilet （bio-toilet）, and a gray water treatment based on a biological and ecological concept. Sustainable sanitation system also converts the domestic waste to soil conditioners and fertilizers, for farmland use. As one of the case studies, Environmentally Symbiotic Housing in which people actually live using the bio-toilet for the black water treatment and the household wastewater treatment facility for the gray water was introduced. The availability of this system was investigated by analyzing the sawdust used in the bio-toilet and the quality of the effluent in the household wastewater treatment facility. As the result, the water content of the sawdust did not exceed 60% in any of the sampling points and the BOD and COD of the effluent of the household wastewater treatment facility were below 10 and 20 mg/L respectively, due to the low loading. Compared to the pollution load on the water environment created by the conventional system, it was found that the effluent of the house has a lower load than the tertiary treatment and the volume of the water consumption is 75% of the conventional system.

关键词： bio-toilet pollution load sustainable sanitation system water consumption