检索结果-南通市图书馆

在线全文

学校读者我要写书评

暂无评论

太古代金矿化和氧化热液流体

地球与环境 1988年第9期 42-54页

作者： E.M.Cameron ,k.hattori ,杨秋剑

在太古代岩石中,硫酸盐矿物、赤铁矿和同位素已分馏的硫化物相对很少见。然而,几个太古代金矿床却含有作为氧化热液流体指示剂的这些特征矿物的一种或多种。这些太古代金矿床包括赫姆洛、麦金太尔-霍灵格、马卡萨、莱克肖尔和罗斯等金矿... 详细信息

在太古代岩石中,硫酸盐矿物、赤铁矿和同位素已分馏的硫化物相对很少见。然而,几个太古代金矿床却含有作为氧化热液流体指示剂的这些特征矿物的一种或多种。这些太古代金矿床包括赫姆洛、麦金太尔-霍灵格、马卡萨、莱克肖尔和罗斯等金矿床,它们都位于加拿大安大略省和澳大利亚卡尔古利。较小的金矿床例子位于加拿大安大略省希斯洛普区和马塔奇文地区。除了赫姆洛金矿床之外,其余这些金矿床都是在空间上和时间上与长英质深成作用有关的石英-碳酸盐脉型矿床。因为变质流体和太古代地表水基本上是还原的,所以流体的最可能的总来源是长英质岩浆。母岩浆都是相对氧化的、含水的和富CO2的。这种氧化特征可能有利于Au加入到部分熔融的熔体中去,从而有利于把Au分配到岩浆水流体中。CO2含量高有助于水流体与来自深度比其他地方还深的岩浆分离开来。流体包体数据支持主要的太古代脉型Au矿床是在深度比大多数现代岩浆-热液矿化（如斑岩铜矿床）大的壳层形成的。在较高的温压条件下,富CO2流体不能分离成两个相:盐水流体相和低盐度H2O—CO2流体相。这可使Cl配合的贱金属与包括Au、Sb和As在内的其他金属分离开。在大多数金矿床周围发生的广泛的碳酸盐化具有在原生岩浆CO2能及的范围内一致的δ13C值。

关键词：太古代金矿床硫化物硫化合物太古宙地质年代太古代硫酸盐矿物热液流体金矿化

安大略省赫姆洛金矿床的地球化学和同位素研究

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

地球与环境 1987年第12期 35-42页

作者： E.M.Cameron ,k.hattori ,何芝兰

前言尽管在赫姆洛金矿床附近进行了长期的勘探,但在1981年才发现了位于安大略省马拉松附近的赫姆洛金矿床。目前探明的储量为8500

关键词：矿床矿藏重晶石矿同位素组成黄铁矿铁矿物硫化物硫化合物矿带同位素硫酸盐矿物地球化学地球科学洛金

Aging-induced memory loss due to decreased N1-acetyl-5-methoxykynuramine,a melatonin metabolite,in the hippocampus:a potential prophylactic agent for dementia

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第6期20卷 1705-1706页

作者： kazuki Watanabe Atsuhiko hattori Department of Immunobiology Institute of Development Aging and CancerTohoku UniversitySendaiMiyagiJapan Department of Sport and Wellness College of Sport and WellnessRikkyo UniversityNiizaSaitamaJapan

Melatonin(N-acetyl-5-methoxytryptamine)is known as the hormone of darkness because it is synthesized at night and involved in regulating the circadian *** hormone is primarily synthesized by the vertebrate pineal gland,but is ubiquitous among invertebrates,unicellular organisms,plants,and even cyanobacteria(hattori and Suzuki,2024).Melatonin is well-conserved evolutionarily and possesses several physiological functions,such as immune response,bone and glucose metabolism,and memory formation besides regulating the circadian rhythm.

关键词： metabolism primarily agent

Strong coupling and catenary field enhancement in the hybrid plasmonic metamaterial cavity and TMDC monolayers

在线全文

学校读者我要写书评

暂无评论

Opto-Electronic Advances 2024年第5期7卷 20-32页

作者： Andergachew Mekonnen Berhe khalil As’ham Ibrahim Al-Ani Haroldo T.hattori Andrey E.Miroshnichenko School of Engineering and Technology University of New South Wales at CanberraNorthcott DriveCanberra ACT 2610Australia

Strong coupling between resonantly matched surface plasmons of metals and excitons of quantum emitters results in the formation of new plasmon-exciton hybridized energy *** plasmon-exciton strong coupling,plasmonic nanocavities play a significant role due to their ability to confine light in an ultrasmall ***,two-dimensional transition metal dichalcogenides(TMDCs) have a significant exciton binding energy and remain stable at ambient conditions,making them an excellent alternative for investigating light-matter *** a result,strong plasmon-exciton coupling has been reported by introducing a single metallic ***,single nanoparticles have lower spatial confinement of electromagnetic fields and limited tunability to match the excitonic ***,we introduce the concept of catenary-shaped optical fields induced by plasmonic metamaterial cavities to scale the strength of plasmon-exciton *** demonstrated plasmon modes of metallic metamaterial cavities offer high confinement and tunability and can match with the excitons of TMDCs to exhibit a strong coupling regime by tuning either the size of the cavity gap or *** calculated Rabi splitting of Au-MoSe_2 and Au-WSe_2 heterostructures strongly depends on the catenary-like field enhancement induced by the Au cavity,resulting in room-temperature Rabi splitting ranging between 77.86 and 320 me *** plasmonic metamaterial cavities can pave the way for manipulating excitons in TMDCs and operating active nanophotonic devices at ambient temperature.

关键词： catenary-shaped field enhancement strong coupling plasmon exciton Rabi splitting

利用赫姆洛金矿床中特征性同位素组成的黄铁矿鉴别太古代地质体的同类型金矿化

在线全文

学校读者我要写书评

暂无评论

国外地质勘探技术 1988年第11期 45-48页

作者： k.hattori E.M.CameRon 吴荣庆

本文提出加拿大赫姆洛金矿床矿体及围岩中黄铁矿的异常硫同位素数值,讨论了应用这些特异硫同位素数值在其它地区太古代地质体中鉴別同类型有望金矿化的可行性。

关键词：太古代硫化物地体太古宙地质年代硫化合物同位素组成铁矿物黄铁矿金矿化矿藏矿床地质体洛金特征性

Influence of aging, mitochondrial dysfunction, and inflammation on Parkinson's disease

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Neural Regeneration Research 2024年第6期19卷 1197-1198页

作者： Davide Cossu Nobutaka Hatiori Department of Neurology Juntendo University Department of Biomedical Sciences Sassari University

Aging is associated with chronic form of inflammation called inflammaging,which results from immune system *** plays a crucial role in the pathogenesis of various neurodegenerative diseases(Dabravolski et al.,2022).Mo...

关键词：

与地壳活动有关的ULF地磁变化:RIkEN-NASDA项目概要和最新结果

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

世界地震译丛 2005年第3期36卷 50-53页

作者： k.hattori I．Takahashi M．Hayakawa N．Isezaki k．Yumoto T．Nagao S．Uyeda 李琪杨冬梅不详中国地震局地球物理研究所

尽管地震短临预报极其重要,并且经过了人们多年的努力,但它仍是目前未能解决的问题。近年来,与地震相关的电磁现象被认为是解决地震短临预报的有效途径之一。现在已经积累了大量的地震电磁前兆信号的震例,这些信号分布在很宽的频带范围(... 详细信息

尽管地震短临预报极其重要,并且经过了人们多年的努力,但它仍是目前未能解决的问题。近年来,与地震相关的电磁现象被认为是解决地震短临预报的有效途径之一。现在已经积累了大量的地震电磁前兆信号的震例,这些信号分布在很宽的频带范围(DC-VHF)内,其中ULF地磁变化是最有希望的地磁前兆之一。通过监测ULF地磁变化,有望实现地震短临预报。本文将阐述从ULF电磁信号中提取震磁异常变化的方法。

关键词：地磁变化 ULF 地壳活动地震短临预报概要项目电磁现象前兆信号信号分布地磁前兆异常变化电磁信号震例震磁

Himalayas as a global hot spot of springtime stratospheric intrusions:Insight from isotopic signatures in sulfate aerosols

在线全文

学校读者我要写书评

暂无评论

Research in Cold and Arid Regions 2024年第1期16卷 5-13页

作者： kun Wang ShiChang kang Mang Lin PengFei Chen ChaoLiu Li XiuFeng Yin Shohei hattori Teresa L.Jackson JunHua Yang YiXi Liu Naohiro Yoshida Mark HThiemens State key Laboratory of Cryospheric Science Northwest Institute of Eco-Environment and ResourcesChinese Academy of Sciences(CAS)LanzhouGansu 730000China State key Laboratory of Isotope Geochemistry Guangzhou Institute of GeochemistryCASGuangzhouGuangdong 510640China University of Chinese Academy of Sciences Beijing 100049China International Center for Isotope Effects Research(ICIER) School of Earth Sciences and EngineeringNanjing UniversityNanjingJiangsu 210023China Frontiers Science Center for Critical Earth Material Cycling State Key Laboratory for Mineral Deposits ResearchSchool of Earth Sciences and EngineeringNanjing UniversityNanjingJiangsu 210023China Department of Chemical Science and Engineering School of Materials and Chemical TechnologyTokyo Institute of Technology4259 Nagatsuta-choMidori-kuYokohamaKanagawa 226-8502Japan Department of Chemistry and Biochemistry University of California San DiegoLa JollaCA 92093-0021USA Earth-Life Science Institute Tokyo Institute of TechnologyMeguro-kuTokyo 152-8551Japan National Institute of Information and Communications Technology KoganeiTokyo 184-8795Japan

Downward transport of stratospheric air into the troposphere(identified as stratospheric intrusions)could potentially modify the radiation budget and chemical of the Earth's surface *** the highest and largest plateau on earth,the Tibetan Plateau including the Himalayas couples to global climate,and has attracted widespread attention due to rapid warming and cryospheric *** studies recognized strong stratospheric intrusions in the Himalayas but are poorly understood due to limited direct evidences and the complexity of the meteorological dynamics of the third ***^(35)S is a radioactive isotope predominately produced in the lower stratosphere and has been demonstrated as a sensitive chemical tracer to detect stratospherically sourced air mass in the planetary boundary ***,we report 6-month(April–September 2018)observation of^(35)S in atmospheric sulfate aerosols(^(35)SO_(4)^(2-))collected from a remote site in the Himalayas to reveal the stratospheric intrusion phenomenon as well as its potential impacts in this *** the sampling campaign,the^(35)SO_(4)^(2-)concentrations show an average of 1,070±980 atoms/m^(3).In springtime,the average is 1,620±730 atoms/m^(3),significantly higher than the global existing data measured so *** significant enrichments of^(35)SO_(4)^(2-)measured in this study verified the hypothesis that the Himalayas is a global hot spot of stratospheric intrusions,especially during the springtime as a consequence of its unique geology and atmospheric *** combined with the ancillary evidences,e.g.,oxygen-17 anomaly in sulfate and modeling results,we found that the stratospheric intrusions have a profound impact on the surface ozone concentrations over the study region,and potentially have the ability to constrain how the mechanisms of sulfate oxidation are affected by a change in plateau atmospheric properties and *** study provides new observational constraints on stra

关键词： Himalayas Stratospheric intrusions Cosmogenic^(35)SO_(4)^(2-) Ozone Atmospheric oxidation

Long-term survival of the Sister Mary Joseph nodule originating from breast cancer:A case report

在线全文

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2023年第34期11卷 8205-8211页

作者： koji kanayama Maki Tanioka Yoshitsugu hattori Takuya Iida Mutsumi Okazaki Department of Plastic and Reconstructive Surgery The University of TokyoTokyo 113-8655Japan Department of Medical Oncology National Cancer Center HospitalTokyo 104-0045Japan

BACkGROUND A Sister Mary Joseph nodule(SMJN)is an uncommon cutaneous metastasis found in the umbilicus,indicating an advanced *** typically originate from intra-abdominal sources,rarely from breast *** suggests a poor prognosis with a median survival of approximately 8 mo after *** patients with SMJNs is challenging,as most receive limited palliative care *** optimal strategy for long-term survival of these patients remains *** SUMMARY A 58-year-old female,previously diagnosed with right breast cancer 17 years ago and underwent breast-conserving surgery,adjuvant radiotherapy,and endocrine therapy,presented with a 2-cm umbilical *** years previously,metastases were detected in the right supraclavicular,infraclavicular,hilar,and mediastinal lymph *** umbilical nodule emerged four years before the date of presentation,confirmed as a skin metastasis of primary breast cancer upon excisional *** initial removal,the nodule recurred and grew,leading to her referral to our *** patient underwent extensive excision of the umbilical tumor and immediate abdominal wall *** therapy was continued *** years later,no local recurrence was observed,and the patient continued to work full-time,achieving over 9 years of survival following SMJN *** This case study aimed to identify the optimal strategy for achieving extended survival outcomes in patients with SMJN through comprehensive *** presented a case of the longest survival in a patient after undergoing a multidisciplinary treatment *** findings underscore the significance of adopting a multimodal treatment approach comprising timely and wide excision along with adjunctive *** approach can control the disease,prolong survival,and improve the quality of life in patients with SMJN.

关键词： Sister Mary Joseph nodule Breast cancer Cutaneous metastasis Long-term survival Abdominal wall reconstruction Case report