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Osmotic pressure of serum and cerebrospinal fluid in patients with suspected neurological conditions

Neural Regeneration Research 2020年第5期15卷 944-947页

作者： Tetsuya Akaishi Toshiyuki Takahashi Ichiro Nakashima Michiaki Abe Masashi aoki Tadashi Ishii Department of Education and Support for Regional Medicine Tohoku University HospitalSendaiJapan Department of Neurology Tohoku University Graduate School of MedicineSendaiJapan Department of Neurology National Hospital Organization Yonezawa National HospitalYonezawaJapan Department of Neurology Tohoku Medical and Pharmaceutical UniversitySendaiJapan

Interstitial fluid movement in the brain parenchyma has been suggested to contribute to sustaining the metabolism in brain parenchyma and maintaining the function of neurons and glial *** pulsatile hydrostatic pressure gradient may be one of the driving forces of this bulk ***,osmotic pressure- related factors have not been studied until *** this prospective observational study,to elucidate the relationship between osmolality (mOsm/kg) in the serum and that in the cerebrospinal fluid (CSF),we simultaneously measured the serum and CSF osmolality of 179 subjects with suspected neurological *** osmolality was 283.6 ± 6.5 mOsm/kg and CSF osmolality was 289.5 ± 6.6 mOsm/*** the specific gravity of serum and CSF is known to be 1.024–1.028 and 1.004–1.007,respectively,the estimated average of osmolarity (mOsm/L) in the serum and CSF covered exactly the same range (i.e.,290.5–291.5 mOsm/L).There was strong correlation between CSF osmolality and serum osmolality,but the difference in osmolality between serum and CSF was not correlated with serum osmolality,serum electrolyte levels,protein levels,or quotient of *** conclusion,CSF osmolarity was suggested to be equal to serum *** is not one of the driving forces of this bulk *** factors such as hydrostatic pressure gradient should be used to explain the mechanism of bulk flow in the brain *** study was approved by the Institutional Review Board of the Tohoku University Hospital (approval *** No.2015-1-257) on July 29,2015.

关键词： brain parenchyma bulk flow cerebrospinal fluid hydrostatic pressure interstitial fluid osmolarity osmotic pressure

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Clinicopathological features and prognosis of surgical resected cases of biliary cancer with pancreaticobiliary maljunction

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Hepatobiliary & Pancreatic Diseases International 2020年第1期19卷 97-100页

作者： Tsukasa Takayashiki hideyuki Yoshitomi Katsunori Furukawa Satoshi Kuboki Masaru Miyazaki Masayuki Ohtsuka Department of General Surgery Graduate School of MedicineChiba University Department of Gastroenterological Surgery Mita HospitalInternational University of Health and Welfare

To the Editor:Pancreaticobiliary maljunction(PBM)is a congenital anomaly in which the pancreatic and bile ducts join anatomically outside of the duodenal wall away from the Oddi’s *** condition causes the reflux of pancreatic juice into the bile duct under high pressure,resulting in various pathologic *** features of PBM patients are common bile duct dilatation,long common channel,and high amylase levels in bile *** them,one of the most significant problems is the development of biliary cancer,including extrahepatic bile duct and gallbladder cancers[1].A nationwide survey in Japan reported biliary cancer in 21.6%of adult patients with PBM concomitant with congenital biliary dilatation,32.1%and 62.3%extrahepatic bile duct and gallbladder cancers,respectively[2].

关键词： biliary cancer congenital

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Ozone disrupts the communication between plants and insects in urban and suburban areas:an updated insight on plant volatiles

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Journal of Forestry Research 2021年第4期32卷 1337-1349页

作者： Noboru Masui Evgenios Agathokleous Tomoki Mochizuki Akira Tani hideyuki Matsuura Takayoshi Koike Graduate School of Agriculture Hokkaido UniversitySapporoJapan Key Laboratory of Agrometeorology of Jiangsu Province Institute of EcologySchool of Applied MeteorologyNanjing University of Information Science&TechnologyNanjing 210044People’s Republic of China School of Food and Nutritional Sciences University of ShizuokaShizuokaJapan Research Faculty of Agriculture Hokkaido UniversitySapporoJapan Research Center for Eco-Environmental Science CASBeijing 100085People’s Republic of China

Plant-insect interactions are basic components of biodiversity *** attain the international Sustainable Development Goals(SDGs),the interactions in urban and in suburban systems should be better understood to maintain the health of green *** role of ground-level ozone(0_(3)) as an environmental stress disrupting interaction webs is *** mixing ratios in suburbs are usually higher than in the center of cities and may reduce photosynthetic productivity at a relatively higher ***,carbon-based defense capacities of plants may be suppressed by elevated 0_(3) more in the ***,contrary to this expectation,grazing damages by leaf beetles have been severe in some urban centers in comparison with the *** explain differences in grazing damages between urban areas and suburbs,the disruption of atmospheric communication signals by elevated 0_(3) via changes in plant-regulated biogenic volatile organic compounds and long-chain fatty acids are *** ecological roles of plant volatiles and the effects of 0_(3) from both a chemical and a biological perspective are ***-disrupted plant volatiles should be considered to explain herbivory phenomena in urban and suburban systems.

关键词： Biological interactions Elevated O_3 Insect grazing Pollination Plant defense mechanisms

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Preparation and characterization of cross-linked β-cyclodextrin polymer/Fe_3O_4 composite nanoparticles with core-shell structures

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Chinese Chemical Letters 2011年第2期22卷 217-220页

作者： Rui Xue Li Shu Mei Liu Jian Qing Zhao hideyuki Otsuka Atsushi Takahara College of Materials Science and Engineering South China University of TechnologyGuangzhou510640China Institute for Materials Chemistry and Engineering Kyushu UniversityFukuoka 819-0395Japan

Cross-linkedβ-cyclodextrin polymer/Fe3O4 composite nanoparticles with core-shell structures were prepared via cross linking reaction on the surface of carboxymethylβ-cyclodextrin（CM-β-CD） modified Fe3O4 nanoparticles inβ-cyclodextrin alkaline solution by using epichlorohydrin as crosslinking *** morphology,structure and magnetic properties of the prepared composite nanoparticles were investigated by transmission electron microscopy（TEM）,Fourier transform infrared（FTIR） spectrometry,X-ray diffraction（XRD） measurement,thermogravimetric analysis（TGA） and Vibrating sample magnetometry （VSM）,respectively.

关键词： Cross-linkedβ-cyclodextrin polymer Fe3O4 nanoparticles Composite nanoparticles Core-shell structures

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LONG-RANGE CHANGES OF CORRELATION BETWEEN THE TYPHOON FREQUENCIES IN SEVEN REGIONS IN EAST ASIA AND SEA SURFACE TEMPERATURE IN THE NORTH PACIFIC

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Acta Oceanologica Sinica 1985年第3期4卷 382-394页

作者：解思梅,MASATOSHI M.YOSHINO,TAKASHI aoki National Research Center for Marine Environmental Forecasts NBO Beijing Institute of Geoscience University of Tsukuba 305 Japan Meteorological Research Institute Tsukuba 305 Japan

The correlation coefficients between the typhoon frequencies for the seven regions in East Asia (i. e. Xisha, Guangzhou, Xiamen, Shanghai, Naha, Kagoshima and Nagoya) and the monthly-mean sea surface temperature (SST) from 2 years before to 1 year after are calculated, indicating that the most significant correlation appears in the period from the summer of 2 years before to the summer of 1 year before. During this period negative correlations are located in the northwestern part of the North Pacific while the positive ones located in the southeastern part. It is found that the positive correlations change into the negative ones in Equatorial East Pacific in the same year (simultaneous correlation). The high-level correlation region in 1 year after is found in the area of Alaska Current. It is also suggested that there are interannual variations of about 1,1.5 and 2 years for the changes of the correlation intensity.

关键词： SST LONG-RANGE CHANGES OF CORRELATION BETWEEN THE TYPHOON FREQUENCIES IN SEVEN REGIONS IN EAST ASIA AND SEA SURFACE TEMPERATURE IN THE NORTH PACIFIC

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Effect of hydrogen peroxide on selective flotation of chalcocite and enargite

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International Journal of Mining Science and Technology 2023年第6期33卷 703-716页

作者： Gde Pandhe Wisnu Suyantara Daniyarov Berdakh Hajime Miki Tsuyoshi Hirajima Keiko Sasaki Daishi Ochi Yuji aoki Department of Earth Resources Engineering Faculty of EngineeringKyushu UniversityFukuoka 819-0395Japan Kyushu University Institute for Asian and Oceanian Studies Kyushu UniversityFukuoka 819-0395Japan Graduate School of Engineering Faculty of EngineeringKyushu UniversityFukuoka 819-0395Japan Uzbekistan-Japan Innovation Center of Youth Tashkent 100095Uzbekistan Sumitomo Metal Mining Co. Ltd.Tokyo 105-8716Japan Sumitomo Metal Mining Co. Ltd.Ehime 792-0002Japan

Enargite is typically associated with *** to the similarity in the flotation behaviors of these minerals,both minerals are reported to concentrate in the conventional flotation ***,inorganic arsenic in enargite can decrease the copper concentrate quality and increase the operating cost of processing this *** these minerals is important for cleaner copper production to avoid these *** this context,this study investigated the effect of hydrogen peroxide(H_(2)O_(2))treatment on the flotation behavior of chalcocite and *** tests of pure and mixed minerals indicated that H_(2)O_(2)treatment reduced the floatability of chalcocite and enargite by forming sulfate and copper hydroxide on their *** the detrimental effect of the H_(2)O_(2)treatment,there was a narrow window of H_(2)O_(2)concentration for separating both minerals,in which enargite floated and chalcocite was *** selective flotation behavior was caused by the rapid adsorption of potassium amyl xanthate(KAX)and lower surface oxidation of enargite compared with that of chalcocite.

关键词： Enargite Chalcocite Hydrogen peroxide Potassium amyl xanthate Selective flotation

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Discovery of a strongly r-process enhanced extremely metal-poor star LAMOST J110901.22+075441.8

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Research in Astronomy and Astrophysics 2015年第8期15卷 1264-1274页

作者： Hai-Ning Li Wako aoki Satoshi Honda Gang Zhao Norbert Christlieb Takuma Suda Key Laboratory of Optical Astronomy National Astronomical ObservatoriesChinese Academy of Sciences National Astronomical Observatory of Japan 2-21-1 OsawaMitakaTokyo181-8588Japan Department of Astronomical Science School of Physical SciencesThe Graduate University of Advanced Studies (SOKENDAI)2-21-1 OsawaMitakaTokyo 181-8588Japan University of Hyogo Center for AstronomyNishigaichiSayo-choSayoHyogo679-5313Japan Zentrum für Astronomie der Universitt Heidelberg LandessternwarteKnigstuhl 12D-69117 HeidelbergGermany Research Center for the Early Universe The University of TokyoHongo 7-3-1Bunkyo-kuTokyo 113-0033Japan

We report the discovery of an extremely metal-poor（EMP） giant,LAMOST J110901.22＋075441.8, which exhibits a large excess of r-process elements with [Eu/Fe] ～＋1.16. The star is one of the newly discovered EMP stars identified from the LAMOST low-resolution spectroscopic survey and a highresolution follow-up observation with the Subaru Telescope. Stellar parameters and elemental abundances have been determined from the Subaru spectrum. Accurate abundances for a total of 23 elements including 11 neutron-capture elements from Sr through Dy have been derived for LAMOST J110901.22＋075441.8. The abundance pattern of LAMOST J110901.22＋075441.8 in the range of C through Zn is in line with the ＂normal＂ population of EMP halo stars, except that it shows a notable underabundance in carbon. The heavy element abundance pattern of LAMOST J110901.22＋075441.8 is in agreement with other well studied cool r-II metal-poor giants such as CS 22892-052 and CS 31082-001. The abundances of elements in the range from Ba through Dy match the scaled solar r-process pattern *** J110901.22＋075441.8 provides the first detailed measurements of neutroncapture elements among r-II stars at such low metallicity with [Fe/H]-3.4, and exhibits similar behavior as other r-II stars in the abundance ratio of Zr/Eu as well as Sr/Eu and Ba/Eu.

关键词： star: abundances—stars: PopulationⅡ— nucleosynthesis

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A Study of the Weak Shock Wave Propagating over a Porous Wall/Cavity System

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Journal of Thermal Science 2005年第4期14卷 329-333页

作者： H.D.KIM S.J.JUNG T.aoki T.SETOGUCHI School of Mechanical Engineering.Andong National University Songchun-dongAndong 760-746Korea Department of Energy and Environmental Engineering Kyushu University6-1Kasuga-kouenKasugaFukuoka 816-8580Japan Department of Mechanical Engineering Saga University1HonjoSaga 840-8502Japan

The present computational study addresses the attenuation of the shock wave propagating in a duct, using a porous wall/cavity system. In the present study, a weak shock wave propagating over the porous wall/cavity system is investigated with computational fluid dynamics. A total variation diminishing scheme is employed to solve the unsteady, two-dimensional, compressible, Navier-Stokes equations. The Mach number of an initial shock wave is changed in the range from 1.02 to 1.12. Several different types of porous wall/cavity systems are tested to investigate the passive control effects. The results show that wall pressure strongly fluctuates due to diffraction and reflection processes of the shock waves behind the incident shock wave. From the results, it is understood that for effective alleviation of tunnel impulse waves, the length of the perforated region should be sufficiently long.

关键词： compressible flow perforated wall railway tunnel shock wave.

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Clinical management for malignant afferent loop obstruction

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World Journal of Gastrointestinal Oncology 2021年第7期13卷 684-692页

作者： Arata Sakai hideyuki Shiomi Atsuhiro Masuda Takashi Kobayashi Yasutaka Yamada Yuzo Kodama Division of Gastroenterology Department of Internal MedicineKobe University Graduate School of MedicineKobe 650-0017HyogoJapan

Afferent loop obstruction(ALO)is defined as duodenal or jejunal mechanical obstruction at the proximal anastomosis site of a *** advances in chemotherapy,the incidence of malignant ALO is *** ALO can be complicated by ischemia,gangrenous bowel,pancreatitis,and ascending ***,the general condition of patients with recurrent cancer is often ***,accurate and rapid diagnosis and minimally invasive treatments are ***,no review articles on the diagnosis and treatment of malignant ALO have been *** literature searching,we reviewed related articles published between 1959 and 2020 in the PubMed ***,we present recent advances in the diagnosis and treatment of malignant ALO and describe future *** transluminal self-expandable metal stent(SEMS)placement is considered the standard treatment for malignant ALO,as this procedure is well established and less ***,with the development of interventional endoscopic ultrasound(EUS)in recent years,the usefulness of EUS-guided gastrojejunostomy has been ***,through indirect comparison,this approach has been reported to be superior to transluminal SEMS *** is expected that a safer and less invasive treatment method will be established through the continued advancement and innovation of interventional endoscopy techniques.

关键词： Malignant afferent loop obstruction Endoscopic self-expandable metal stent placement Endoscopic ultrasound guided gastrojejunostomy Lumen-apposing metal stent

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Flat friction spot joining of aluminum alloy to carbon fiber reinforced polymer sheets:Experiment and simulation

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Journal of Materials Science & Technology 2022年第12期107卷 266-289页

作者： Peihao Geng Ninshu Ma Hong Ma Yunwu Ma Kazuki Murakami Huihong Liu Yasuhiro aoki Hidetoshi Fujii Joining and Welding Research Institute Osaka University11-1 MihogaokaOsaka 567-0047IbarakiJapan MOE Key Lab for Liquid-Solid Structure Evolution and Material Processing Institute of Materials JoiningShandong UniversityJinan 250061China

The Al alloy and carbon fiber reinforced polymer(CFRP)hybrid structures,incorporating the performance advantages of the two materials,have been attracting more attention in high-end manufacturing *** the current investigation,the flat friction spot joining(FSJ)was employed in joining the AA6061-T6 alloy and CFRP *** significance of temperature distribution in influencing joint quality was highlighted through analyzing interface microstructural features,weld defect formation as well as *** understand the role of thermal energy generation and conduction in the process comprehensively,a 3D thermal-mechanical coupling finite element model was *** interfacial temperature was characterized by an uneven distribution behavior due to the inhomogeneous heat *** peak temperatures on the top surface and Al alloy to CFRP interface at 1500 rpm rotational speed with 0.1 mm/s plunging speed were 498℃and 489°C,*** peak interface temperature was reduced to286℃at 250 rpm,which produced an extremely small melted *** with the plunging speed,rotational speed was found to be the predominant parameter for determining the joint property,which could be optimized to simultaneously realize the avoidance of thermal decomposition of CFRP,the sufficient melting duration time,and the wide enough melted *** thermal histories and melted area profiles were in agreement with experimental *** findings could be utilized to provide some feasible guidance for process optimization of dissimilar FSJ of metals and composites.

关键词： Friction spot joining Numerical simulation CFRP/Al alloy Interface microstructure Thermal conduction

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