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Preliminary analysis on roles of metal–organic compounds in th. formation of invisible gold

Acta Geochimica 2021年第6期40卷 1050-1072页

作者： Medet Junussov Mádai Ferenc Kristály Ferenc Tòth.Tivadar Fintor Krisztián Muránszky Gábor Prekob Ádám hámor-VidóMária Department of Mineralogy and Petrography Institute of Mineralogy and GeologyFaculty of Earth Sciences and EngineeringUniversity of MiskolcMiskolc-Egyetemváros 3515Hungary Institute of Mineralogy and Geology Faculty of Earth Sciences and EngineeringUniversity of MiskolcMiskolc-Egyetemváros 3515Hungary Department of Mineralogy and Geochemistry Faculty of Science and InformaticsUniversity of SzegedAradi vértank tere 1Szeged 6720Hungary Institute of Chemistry Faculty of Material Sciences and EngineeringUniversity of MiskolcMiskolc-Egyetemváros 3515Hungary Department of Geology and Meteorology Institute of Geography and Earth SciencesFaculty of SciencesUniversity of PécsVasvári pál utcaPecs 7622Hungary

th. paper comprises new analytical data on th. nature and occurrence of gold in solid pyrobitumen,closely associated with.th. main gold-bearing sulfide arsenic ores of th. Bakyrchik gold deposit(Kazakhstan),related to post-collisional magmatic-hydroth.rmal *** mineralization of th. deposit occurs mainly in th. form of an“invisible”type of gold in th. structures of arsenian pyrite and arsenopyrite,and th. form of gold-organic compounds of pyrobitumen in carbonaceous-terrigenous sequences of Carboniferous *** and electron microscopic analysis,Raman and FT-Infrared analysis,mineralogical and th.ee-step sequential extraction analysis(nh.OhhCl,h2O2,hNO3?hCl)has been carried out using 9 ore samples(from 3 different types of ores)for a comprehensive study of pyrobitumen and sulfide arsenic ores focusing mainly on organic *** sequentially extracted precious metal content of pyrobitumen reaches up to 7 ppm gold and oth.r metals like Ag 4 ppm,Pt 31 ppb,and Pd 26 ppb,forming metal–organic compounds,while arsenic sulfide minerals incorporate 11 ppm gold,39 ppm Ag,0.49 ppm *** enrichment of gold associating with.organic matter and sulfide ore minerals was confirmed in th.s *** matter was active in th. migration of gold and th. capture of gold by ***,th. reductive organic matter agent released gold,most likely for th. sulfide arsenic ore *** was a decisive factor in th. concentration,transportation,and preservation of gold in th. deposit.

关键词： Gold Pyrobitumen Bakyrchik Vitrinite Metal-organic compounds

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Utility of high-resolution anterior segment optical coherence tomography in th. diagnosis and management of sub-clinical ocular surface squamous neoplasia

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Eye and Vision 2019年第1期6卷 229-235页

作者： Ann Q.tran Nandini Venkateswaran Anat Galor Carol L.Karp Department of Ophth.lmology Bascom Palmer Eye InstituteUniversity of Miami Miller School of Medicine900 NW 17th StMiamiFL 33136USA

Background:To evaluate th. frequency and characteristics of sub-clinical ocular surface squamous neoplasia(OSSN)detected by high-resolution anterior segment tomography(hR-OCT)in patients with.clinically unapparent disease following topical ***:A retrospective chart review of patients with.OSSN identified th.ough.a pharmacy database at th. Bascom Palmer Eye Institute from January 2013 to December 2018 was *** undergoing primary th.rapy with.topical 5-fluorouracil 1%(5-FU)(4 times a day for 7 days with.a 21-day break)or interferon-alpha-2b(IFN)(4 times a day)were *** were separated into two *** 1 included individuals whose clinical resolution of OSSN aligned with.complete resolution on *** 2(sub-clinical OSSN group)included individuals with.clinical OSSN resolution but with.features of persistent disease on *** excluded included th.se treated at an outside institution and th.se who used topical th.rapy as a surgical ***:A total of 95 patients(95 eyes)were ***-clinical OSSN was detected at a frequency of 17%in our study patients(n=16 patients,9 treated with.5-FU and 7 treated with.IFN).In th. 16 individuals,th. mean time to clinical resolution was 3.6±1.0 cycles for 5-FU and 4.0±0.0 month. for *** additional 2.1±0.8 cycles for 5-FU and 1.2±0.4 month. for IFN were needed to achieve hR-OCT resolution of *** in Group 1 was noted in 10 patients(12%)while no recurrences occurred in Group 2,th. cohort with.subclinical disease th.t received th. extended medical *** mean follow-up was 24.0±17.9 ***:We found th.t at least 17%of individuals with.apparent clinical resolution of OSSN have sub-clinical disease detected on *** information can be used to optimize treatment and extend th.rapy past th. point of clinical resolution.

关键词： Ocular surface squamous neoplasia,high-resolution optical coherence tomography,Sub-clinical ocular surface squamous neoplasia,Ocular surface imaging ocular surface lesions

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Structural and luminescent properties of (Eu,Tb) PO_4·h_2O nanorods/nanowires prepared by microwave technique

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Journal of Rare Earth. 2011年第12期29卷 1170-1173页

作者： Nguyen th.nh.huong Nguyen Duc Van Dinh.Manh.Tien Do Khanh.Tung Nguyen th.nh.Binh.tran Kim Anh.Le Quoc Minh Institute of Materials Science Vietnam Academy of Science and Technology University of Engineering and Technology National University HanoiVietnam

Nanowires/nanorods of europium/terbium orth.phosphate monohydrate with.Eu^3＋ concentration of 6, 11, and 20 at.% were prepared by microwave synth.sis meth.d. th. effects of Eu^3＋ doping concentration on structure, morphology and optical properties of nanomaterials were also investigated. th. results showed th.t, for all studied Eu^3＋ doping concentrations, a single-crystalline phase of rhabdophane-type （Eu,Tb）PO4·h2O nanowires/nanorods was obtained by using microwave h.ating of an aqueous solution of terbium（Ⅲ） nitrate, europium（Ⅲ） nitrate and nh.h2PO4 with.ph=2. th. length.and width.of th.se nanowires/nanorods ranged from 150 to 300 nm and from 10 to 50 nm, respectively. th. evidence of energy transfer from Tb^3＋ to Eu^3＋ due to th. energy overlap between th. donor Tb^3＋ and th. acceptor Eu^3＋was observed obviously via a significant enh.ncement in th. luminescent intensity of Eu^3＋. Keywords：

关键词： microwave technique nanowires/nanorods energy transfer fluorescence spectroscopy rare earth.

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Assesment of Frequency-Magnitude of Extreme Rainfall Events-Case Study of th. MeKong River Delta

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Journal of Environmental Science and Engineering(B) 2015年第3期4卷 161-168页

作者： Pham hai An tran Anh.Tu tran Dinh.Lan Nguyen Ngoc Tien Institute of Marine Environment and Resources VAST Haiphong 180000 Vietnam Institute of Marine Geology and Geophysics VAST Hainoi 1000000 Vietnam

Extreme rainfall events are primary natural hazards, which cause a severe th.eat to people and th.ir properties in populated cities, which.are normally located in coastal areas in Vietnam. Analysing th.se events by using a data series observed over years will support us to draw a picture of how th. climate change impact on local environments. th. purpose of th.s report is to understand th. characteristics of th. extreme rainfall events in MEKONG river delta （south.VietNam）. Daily rainfall data in th. period of 30 years for a meteorological station in each.area were collected from th. Vietnam National hydro-meteorological Service. th. extreme rainfall events were defined as th.se exceeding th. 95th.percentile for each station. th. analytical results show th.t th. rainfall values （95th.percentile） are 37.4 mm/day at Nam Can station, 27 mm/day at My th.nh.station, 22.4 mm/day at h.a Binh.station, 23.8 mm/day at Binh.Dai station and 22.7 mm/day at Ben Trai station. th. highest rainfall data ever recorded are 246.4 mm/day （Nam Can）, 174.5 mm/day （My th.nh., 179 mm/day （h.a Bin_h）, 187.3 mm/day （Binh.Dai） and 136.3 mm/day （Ben Trai） during 1983-2012. th. result of th. Mann-Kendall tests show th.t th.re was a significant creasing of th. rainfall at Nam Can, My th.nh.station in two periods （1983-2012, 1998-2012） while no clear trend of th. rainfall was recoreded at h.a Birth. Binh.Dai, Ben Trai station. In order to estimate th. return period of th. extreme rainfall events, th. meth.d General Extreme Value Distribution was used to calculate frequent distribution. th. magnitudes of daily maximum rainfall were from 2 to 100 years. th. results of return period show th.t maximum rainfalls are 46.6 mm at Nam Can station （highest） and 31.4 mm at h.a Birth.station （lowest） during 50 years. Similarly, maximum rainfalls are expected to be about 55.1 mm at Nam Can station and 37.2 mm at h.a Birth.station for 100 years.

关键词： Generalized extreme value distribution MEKONG river delta.

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“风与巢”的故事 September咖啡厅2号店

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室内设计与装修 2021年第9期 18-23页

作者： [越南]Red5studio+Ben Decor(设计) 风铃(编译) Lại Chính.Trực(设计) Nguyễn Vịnh.nh.(设计) Trần th.Kim Duyên(设计) Phạm hoàng Duy nh.n(设计) Phú Đào(摄影) Red5studio+Ben Decor

本案是咖啡品牌“九月”(September)位于胡志明市的第二间咖啡馆。承担该项目设计的Red5studio事务所延续了该品牌第一间门店“秋天与落叶”的主题,以鸟巢和九月的风为灵感,讲述了“风与巢”的故事。咖啡馆由2栋比邻的房屋构成,设计师... 详细信息

本案是咖啡品牌“九月”(September)位于胡志明市的第二间咖啡馆。承担该项目设计的Red5studio事务所延续了该品牌第一间门店“秋天与落叶”的主题,以鸟巢和九月的风为灵感,讲述了“风与巢”的故事。咖啡馆由2栋比邻的房屋构成,设计师利用宽度与高度的特点,构造了鸟巢形的立面形象,创造了极具特色的露台与屋顶花园空间。立面的钢制元素以灵动的姿态“编织”着这个硕大的“鸟巢”,悬挂在里面的圆片会随风飘动,仿佛一只落在枝头的鸟儿。

关键词：咖啡馆胡志明市咖啡厅鸟巢

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th. use of high resolution anterior segment optical coherence tomography for th. characterization of conjunctival lymphoma, conjunctival amyloidosis and benign reactive lymphoid hyperplasia

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Eye and Vision 2019年第1期6卷 123-130页

作者： Nandini Venkateswaran Carolina Mercado Ann Q.tran Armando Garcia Pedro Francisco Monsalve Diaz Sander R.Dubovy Anat Galor Carol L.Karp Bascom Palmer Eye Institute University of Miami Miller School of Medicine900 NW 17th StreetMiamiFL 33136USA Department of Ophth.lmology Miami Veterans Administration Medical CenterMiamiFLUSA

Background:Conjunctival lymphoma,conjunctival amyloidosis and benign reactive lymphoid hyperplasia(BRLh.are conditions th.t often have a similar appearance on th. ocular *** use of high resolution anterior segment optical coherence tomography(hR-OCT)enables clinicians to evaluate distinctive differences in tissue morphology and cellular patterns in various ocular surface *** th.s study,we characterize th. morphological differences seen in conjunctival lymphoma,conjunctival amyloidosis and BRLh on hR-OCT ***:A retrospective chart review was performed of patients with.biopsy proven conjunctival lymphoma,conjunctival amyloidosis and BRLh between 2012 and 2019 at th. Bascom Palmer Eye *** were excluded if hR-OCT imaging was not performed on initial ***:th.rty-four total eyes of 27 patients were *** eyes had conjunctival lymphoma(16 patients),8 eyes had conjunctival amyloidosis(6 patients)and 6 eyes had BRLh(5 patients).All conditions appeared clinically as pink,red or yellow subepith.lial lesions but had different features on *** lymphoma,hR-OCT images typically showed homogenous,dark subepith.lial lesions with.smooth.borders,containing monomorphic dot-like ***-OCT images of amyloidosis typically showed heterogeneous,dark lesions with.irregular borders,often containing hyperreflective linear ***-OCT images of BRLh showed variable infiltration of th. subepith.lial tissue,at times with.homogenous lesions containing dot-like infiltrates like lymphoma and oth.r times with.more hyperreflective,subepith.lial *** cytometry and gene rearrangement was needed for final differentiation between BRLh.and lymphoma ***:Distinctive features on hR-OCT of conjunctival lymphoma,conjunctival amyloidosis and BRLh can help characterize th.se lesions beyond what is apparent with.th. clinical *** studies can furth.r validate th.s technology’s use with.m

关键词： high resolution anterior segment optical coherence tomography Ocular surface imaging Ocular surface lesions Conjunctival lymphoma Conjunctival amyloidosis Benign reactive lymphoid hyperplasia

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Surveillance tools for detection of recurrent nasopharyngeal carcinoma: An evidence-based review and recommendations

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World Journal of Otorhinolaryngology-h.ad and Neck Surgery 2022年第3期8卷 187-204页

作者： Andrew th.mboo Kim h.tran Annette X.Ye Issraa Shoucair Basel Jabarin Eitan Prisman Cath.e Garnis St.Paul's Sinus Centre Otolaryngology Head and Neck Surgery1081Burrard StVancouverV6Z 1Y6BCCanada Department of Biomedical Physiology and Kinesiology SimonFraserUniversity8888 University DrBurnabyV5A1S6BCCanada th. University of British Columbia Faculty of Medicine MDProgram317-2194Health SciencesMallVancouverV6T1Z3BCCanada British Columbia Cancer Research Centre Cancer Genetics and Developmental Biology675 W 10th AveVancouverV5Z 1L3BCCanada VancouverGeneral hospital Otolaryngology HeadandNeckSurgery899W12thAveVancouverV5Z 1M9BCCanada

Objective: Nasopharyngeal carcinomas (NPC) are tumors arising from epith.lium of th. nasopharynx. th. 5-year survival rate of primary NPC is 80% with.significant risks of recurrence. th. objective here is to provide an evidence-based systemic review of th. diagnostic value of different modalities in detecting local, regional, and distal recurrent NPC, as well as th. associated costs with.th.se ***: MEDLINE, EMBASE, and th. Coch.ane review database were queried. Two hundred and twenty-th.ee abstracts were generated using th. inclusion criteria: patients >18 years of age;histopath.logical reference standard;and modalities pertaining to imaging or ***: Twenty-four manuscripts fulfilled th. inclusion criteria and 5 surveillance tools identified: endoscopy, MR, FDG-PET, Tc-99m MIBI and201TI SPECT, and EBV ***: For local surveillance, endoscopy is th. gold standard recommendation, with.increased efficacy if Narrow Band Imaging or contact endoscopy are utilized. MRI and FDG-PET is also recommended to help with.local to distal spread;however, Tc-99m MIBI and201TI SPECT are options as well. EBV DNA is recommended as a ch.ap and accessible adjunct surveillance tool if an available as an option.

关键词： EBV DNA FDG-PET Imaging MR Endoscopy Recurrent Nasopharyngeal Carcinoma

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Iron fractions in th. apoplast of intact root tips of Zea mays L. seedlings affected by nitrogen form

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Chinese Science Bulletin 2002年第9期47卷 727-731页

作者： h.E.Goldbach Institute of Agrichemistry Bonn University

th. effects of ammonium (nh.+-N) and nitrate (NO3- - N) were examined on Fe fractions and FeCN (ferricyanide) reductase activity in intact root tips (0-3 cm) of young maize (Zea mays L. cv. Lenz) in solution culture by using short-term experiment under controlled Fe deficiency conditions (containing high hCO3- concentration in pre-culture solution). th. results showed th.t Fe(Ⅱ) concentrations in root tip apoplast of maize were only 20-40 nmol/g FW which.accounted for 7%-13% of total Fe. Most of Fe in root tips existed as Fe(Ⅲ) compounds. Imposition of th. roots to nh.+ - N or NO3- - N for 60 min led to an increase of Fe(Ⅱ) in root tip apoplast. nh.+ - N led to an increased concentration of Fe(Ⅱ) and exchangeable Fe (Fe(Ⅱ) and Fe (Ⅲ)) in root tips, while NO3- - N increased FeCN reductase activity. th. relationship between ph.and Fe fractions, FeCN reductase activity was also discussed.

关键词： root apoplast iron fraction nitrogen form.

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骨髓干细胞植入正常或慢性梗死心肌后短期内移植细胞的分布及可利用度(英文)

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中国现代医学杂志 2007年第23期17卷 2817-2822页

作者：李岩 tran Nguyen MARIE Pierre-Yves ANTUNES Laurent STOLTZ Jean-Francois VILLEMOT Jean- Pierre 北京大学第一医院胸外科北京100034 法国南锡大学医学院外科学实验室法国南锡54500 法国南锡大学医学院核医学科法国南锡54511 法国南锡大学医学院病理学实验室法国南锡54511 法国南锡大学Brabois医疗中心细胞治疗及组织工程学研究室法国南锡54511

目的采用心肌内注射方法将骨髓间充质干细胞(BMSCs)植入到正常或慢性梗死心肌中后, 研究短期内植入细胞的分布和可利用度。方法采用选择性冠状动脉结扎方法建立大鼠慢性心肌梗死模型( n =9) 。1个月后, 采用心肌内注射方法将 111 铟 - ... 详细信息

目的采用心肌内注射方法将骨髓间充质干细胞(BMSCs)植入到正常或慢性梗死心肌中后, 研究短期内植入细胞的分布和可利用度。方法采用选择性冠状动脉结扎方法建立大鼠慢性心肌梗死模型( n =9) 。1个月后, 采用心肌内注射方法将 111 铟 - 羟基喹啉 ( 111Indium- oxine, 111In) 同位素标记的自体 BMSCs (2×106/50μL)植入到慢性梗死心肌和正常对照心肌中( n =6) 。采用序列平面针孔闪烁扫描方法测定 BMSCs移植后 2 h、1 d、3 d、7 d 时的心肌 111In 的放射活性, 并计算植入细胞在心肌内的驻留率。于细胞移植术后第 7 天切取制备心脏横断面冷冻切片, 进行组织放射微成像(Micro- imaging)和组织病理学分析, 观察植入细胞在心肌内的分布情况。结果慢性心肌梗死(MI)组的心肌 111In 的放射活性在所有测定的时间点均显著高于正常对照组(P<0.01)。心肌放射强度实测值在经由各相应时间点 BMSCs细胞 111In 的自发泄漏率的体外标定值校正后, 计算得出植入的 BMSCs 细胞在慢性梗死心肌(MI 组)中的驻留率平均为 60%, 而在正常对照组心肌中细胞的驻留率只有 25%(P <0.01), 并在 7 d 的随访期中保持稳定。组织放射微成像和组织病理学分析都证实植入的 BMSCs 主要分布于由注射针头插入损伤或慢性心肌梗死所造成的纤维瘢痕组织中。结论心肌内细胞移植术后 7 d 内,被植入到慢性梗死心肌中的 BMSCs 细胞的可利用度高于被植入在正常心肌中的 BMSCs 细胞的可利用度。植入心肌内的 BMSCs 主要分布于由注射针头插入损伤和慢性心肌梗死导致的纤维瘢痕组织中。

关键词：心肌梗死骨髓间充质干细胞心脏细胞移植术细胞可利用度细胞分布

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越南东北部静足(Tinh.Túc)钨锡矿区花岗岩年代学、地球化学与区域构造意义

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岩石学报 2011年第9期27卷 2795-2808页

作者：王东升刘俊来 tran MyDung NGYUEN QuangLuat 郭强吴文彬张招崇赵志丹中国地质大学地质过程与矿产资源国家重点实验室北京100083 hanoi University of Geology and Mining HanoiVietnam

越南东北部高平地区静足(TInh.úc)钨锡矿床分布在银山-静足成矿带上,属于中国西南-越东北花岗岩相关的钨锡成矿带的一部分。花岗岩的锆石SIMSU-Pb测年结果为93.9±3.0Ma,地球化学分析结果显示出过铝质S型花岗岩的特点,高硅(SiO2含量73... 详细信息

越南东北部高平地区静足(TInh.úc)钨锡矿床分布在银山-静足成矿带上,属于中国西南-越东北花岗岩相关的钨锡成矿带的一部分。花岗岩的锆石SIMSU-Pb测年结果为93.9±3.0Ma,地球化学分析结果显示出过铝质S型花岗岩的特点,高硅(SiO2含量73.5%～74.6%),铝过饱和(Al2O3含量14.21%～14.88%),高碱(Na2O+K2O为6.64%～8.47%)、富钾贫钠(K2O/Na2O>1),同时富集Rb、th.U、Zr、hf,亏损Ba、Nb、Sr、Ti、Eu,轻稀土相对富集,呈现明显的负Eu异常。同位素研究表明,样品的87Sr/86Sr初始比值为0.749±0.027,εNd(t)为-10.71～-10.42。本文依据派洼花岗岩的地球化学特征,结合花岗岩的锆石U-Pb年代学、同位素分析结果,认为派洼花岗岩为燕山期后造山环境中形成的高度分异岩浆结晶的结果。通过与华南西南部矿床相关岩体比较,将静足派洼岩体归入个旧-大厂花岗岩带。并通过与缅甸境内腾冲-毛淡棉花岗岩带岩体特征对比并结合构造环境判别,提出个旧-大厂花岗岩带的形成可能受到太平洋构造域和特提斯构造域的双重影响,但以后者为主。

关键词：派洼花岗岩个旧-大厂花岗岩带特提斯构造域越南东北部

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