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福州盆地全新世高分辨率花粉记录及人类对植被的干扰

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福州盆地全新世高分辨率花粉记录及人类对植被的干扰

福州盆地全新世沉积和生态环境演变与人类经济活动方式的耦合关系

中国古生物学会孢粉学分会八届二次学术年会

作者：乐远福郑卓 Rachid CHEDDADI barry v.rolett 中山大学地球科学系

本文通过庄边山考古遗址点区域FZ5钻孔(26°08′58.85″,119°07′46.04″,1274 cm)高分辨率的花粉、硅藻分析以及放射性碳同位素测年并结合其他气候替代指标的分析,研究结果表明:沉积物的时间序列的跨度为8000 *** BP年到现在,福州盆... 详细信息

本文通过庄边山考古遗址点区域FZ5钻孔(26°08′58.85″,119°07′46.04″,1274 cm)高分辨率的花粉、硅藻分析以及放射性碳同位素测年并结合其他气候替代指标的分析,研究结果表明:沉积物的时间序列的跨度为8000 *** BP年到现在,福州盆地庄边山区域植被以及环境经历了4个变化阶段:第一阶段(1274-1132.5 cm,000-7530 *** BP):淡水湿地环境,周边地区分布着茂密的森林;第二阶段(1132.5-664.5 cm,7530-700 *** BP):全新世海侵沉积,周围植被主要为常绿阔叶林;第三阶段(664.5-557.5 cm,700-400 *** BP):海水逐渐退出,但受季风降水以及潮汐影响,大量的河流沉积物填充福州湾并最终形成福州盆地,为该地区农业发展提供了大量耕地,植被开始受到人类活动的干扰,但植被破坏程度较小;第四阶段(557.5-0 cm,400 *** BP–Present):受人类农耕活动影响,植被遭受严重的破坏。本文揭示了东南沿海福州盆地全新世以来的沉积演化过程,本研究区域气候变化与中国东南部气候变化基本一致:暖期始于约7500 *** BP,结束于约2500 *** BP。晚全新世以来,尤其是*** BP以来,人类活动的出现是植被变化的主要控制因素。环境和气候的突变以及人类对森林的砍伐破坏可能是加剧这种的变化的重要因素。

关键词：福州盆地高分辨率花粉记录人类干扰植被变化

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福州盆地全新世沉积和生态环境演变与人类经济活动方式的耦合关系

全新世千年尺度大洪水沉积记录与ENSO驱动的极端气候变化

中国古生物学会孢粉学分会八届二次学术年会

作者：郑卓 barry v.rolett 乐远福黄康有中山大学地球科学系 Department of Anthropology University of Hawaii

＜正＞闽江下游闽侯、福州一带的第四纪断陷盆地的第四纪沉积,记录了晚更新世以来海平面升降与生态环境变迁细节。另一方面,福建是大陆新石器文化和海岛新石器文化交流的关键地带,福建的闽江下游新石器时代遗址发现了丰富多彩的物质文...

＜正＞闽江下游闽侯、福州一带的第四纪断陷盆地的第四纪沉积,记录了晚更新世以来海平面升降与生态环境变迁细节。另一方面,福建是大陆新石器文化和海岛新石器文化交流的关键地带,福建的闽江下游新石器时代遗址发现了丰富多彩的物质文化遗存,考古发掘展示出史前人类海洋渔猎文化和之后稻作农业的发展历程。本研究通过该区第四纪沉积的钻孔取芯和孢粉等多学

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中国科学：地球科学 2023年第11期53卷 2575-2590页

作者：陈聪郑艳伟郑卓宗永强黄康有 barry v.rolett 彭环环张潇汤永杰万秋池章桂芳 Rachid CHEDADDI 广东省地球动力作用与地质灾害重点实验室中山大学地球科学与工程学院珠海519082 稀有金属分离与综合利用国家重点实验室广东省科学院资源利用与稀土开发研究所广州510650 南方海洋科学与工程广东省实验室(珠海) 珠海519082 广东省遥感与地理信息系统应用重点实验室广东省科学院广州地理研究所广州510070 Department of Anthropology University of Hawai’i at ManoaHonoluluHawai’i 96822USA 广东海洋大学海洋与大气学院湛江524088 Institute of Evolutionary Sciences of Montpellier University of MontpellierCNRSMontpellier 34095France

重建全新世大洪水的历史是探讨过去极端气候变化以及预测未来潜在自然灾害风险的关键内容.珠江水系是中国南方最大的河流系统,珠江三角洲曾被认为是世界上受洪水和风暴潮灾害影响最为脆弱的地区之一.然而,迄今为止在中国南方地区缺少千... 详细信息

重建全新世大洪水的历史是探讨过去极端气候变化以及预测未来潜在自然灾害风险的关键内容.珠江水系是中国南方最大的河流系统,珠江三角洲曾被认为是世界上受洪水和风暴潮灾害影响最为脆弱的地区之一.然而,迄今为止在中国南方地区缺少千年尺度的洪水地质记录研究,从而难以从认识过去的角度来检验对未来百年甚至千年一遇大洪水灾害预测的可信度.本研究在珠江干流(西江)下游发现了一系列发育在厚层黑色泥炭腐木堆积中的灰白色黏土夹层,根据沉积序列对比、沉积物特征和物源分析结果,确定为洪水沉积.对每个洪水沉积层采用AMS14C方法进行了精确定年,揭示出西江下游在距今6000年以来至少发生了7次千年一遇规模的超级大洪水,平均再现期约为855年.西江流域特大洪水事件的发生均对应于较强的ENSO活动期,表明东亚夏季风减弱和ENSO增强是引发中国南方异常高降水和特大洪水灾害的重要原因.此外,珠江下游特大洪水事件的发生与中国中东部降水减少在时间上大致耦合,反映了全新世后半期中国东部经向分布的降水“三极”模式显著增强.在过去2100年,人类土地利用增强和森林破坏导致当地的原始植被生态系统迅速退化,水土流失导致大洪水的破坏力和灾难性增大,特别是宋代以后的洪水沉积层中含有丰富的水稻型禾本科花粉,反映洪水曾经淹没了大面积农用土地.此外,全新世古洪水事件不仅对流域内的人类生存造成危害,同时还影响着区域文明的演化.本研究揭露了全新世一系列千年一遇的特大洪水历史,证明了热带太平洋的海-气相互作用与亚热带季风气候变化对东亚降水异常的重要性,研究结果为预测未来的极端气候变化和洪水灾害提供了有价值的重要证据.

关键词：全新世大洪水亚洲季风 ENSO 植被变化早期农业西江下游

Fundamentals and application in phytoremediation of an efficient arsenate reducing bacterium Pseudomonas putida ARS1

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Journal of Environmental Sciences 2024年第3期137卷 237-244页

作者： Ze-Wen Wang Guang Yang Jian Chen Yaoyu Zhou Avelino Nunez Delgado Hui-Ling Cui Gui-Lan Duan barry P.Rosen Yong-Guan Zhu Henan Institute of Advanced Technology Zhengzhou UniversityZhengzhou 450052China State Key Lab of Urban and Regional Ecology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China Department of Cellular Biology and Pharmacology Florida International UniversityHerbert Wertheim College of MedicineMiamiFL33199USA University of Chinese Academy of Sciences Beijing 100049China Key Laboratory of Urban Environment and Health Institute of Urban EnvironmentChinese Academy of SciencesXiamen 361021China College of Resources and Environment Hunan Agricultural UniversityChangsha 410128China Department of Soil Science and Agricultura Chemistry Engineering Polytechnic SchoolUniversity of Santiago de CompostelaCampus Univ.s/n27002LugoSpain

Arsenic is a ubiquitous environmental ***-mediated arsenic biotransformations significantly infuence arsenic mobility and *** transformations by soil and aquatic organisms have been well documented,while little is known regarding effects due to endophytic *** endophyte Pseudomonas putida ARS1 was isolated from rice grown in arsenic contaminated *** ARS1 shows high tolerance to arsenite(As(Ⅲ))and arsenate(As(v)),and exhibits efficient As(v)reduction and As(Ⅲ)effux *** exposed to 0.6 mg/L As(v),As(v)in the medium was completely converted to As(Ⅲ)by *** ARS1 within 4 *** sequencing showed that *** ARS1 has two chromosomal arsenic resistance gene clusters(arsRCBH)that contribute to efficient As(v)reduction and As(Ⅲ)effux,and result in high resistance to *** globosa is a strong arsenic accumulator with high potential for arsenic phytoremediation,which takes up As(Ⅲ)more efficiently than As(v).Co-culture of *** ARS1 and *** enhanced arsenic accumulation in *** by 69%,and resulted in 91%removal of arsenic(at initial concentration of 0.6 mg/L As(v))from water within 3 *** study provides a promising strategy for in situ arsenic phytoremediation through the cooperation of plant and endophytic bacterium.

关键词： Arsenic Pseudomonas putida Arsenate reduction Endophyte Wolffia globosa Phytoremediation

New models to study vulvodynia: hyperinnervation and nociceptor sensitization in the female genital tract

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Neural Regeneration Research 2018年第12期13卷 2096-2097页

作者： Christine M.barry Kalyani K.Huilgol Rainer v.Haberberger Anatomy and Histology College of Medicine and Public Health Flinders University Centre for Neuroscience Flinders University

vulvodynia is a prevalent form of chronic pain, most com- monly affecting the vaginal vestibule （vestibulodynia）（Pukall et al., 2016）. Women with vulvodynia describe intense pain in response to light touch of the affected region, such that sexual function and other activities can be severely limited. Medical costs associated with vulvodynia are high, exceeding $21 billion annually in the United States （Xie et al., 2012）. The high level of direct medical costs has been linked to high treatment failure rates. Many women with the disorder consult multiple practitioners and undergo multiple courses of treatment with limited benefit.

关键词： New models to study vulvodynia hyperinnervation and nociceptor sensitization in the female genital tract CFA

A preliminary study of sperm identification in microdissection testicular sperm extraction samples with deep convolutional neural networks

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Asian Journal of Andrology 2021年第2期23卷 135-139页

作者： Daniel J Wu Odgerel Badamjav vikrant v Reddy Michael Eisenberg barry Behr Department of Computer Science Stanford UniversityStanfordCA 94305USA Department of Urology University of Utah HealthSalt Lake CityUT 84108USA Department of Obstetrics and Gynecology Stanford Children’s HealthStanfordCA 94305USA Department of Urology Stanford University School of MedicineStanfordCA 94305USA

Sperm identification and selection is an essential task when processing human testicular samples for in vitro *** and identifying sperm cell(s)in human testicular biopsy samples is labor intensive and time *** developed a new computer-aided sperm analysis(CASA)system,which utilizes deep learning for near human-level performance on testicular sperm extraction(TESE),trained on a custom *** system automates the identification of sperm in testicular biopsy samples.A dataset of 702 de-identified images from testicular biopsy samples of 30 patients was *** image was normalized and passed through glare filters and diffraction *** data were split 80%,10%,and 10%into training,validation,and test sets,***,a deep object detection network,composed of a feature extraction network and object detection network,was trained on this *** model was benchmarked against embryologists’performance on the detection *** deep learning CASA system achieved a mean average precision(mAP)of 0.741,with an average recall(AR)of 0.376 on our *** proposed method can work in real time;its speed is effectively limited only by the imaging speed of the *** results indicate that deep learning-based technologies can improve the efficiency of finding sperm in testicular biopsy samples.

关键词： artificial intelligence computer vision male infertility microdissection testicular sperm extraction sperm

Fe Nanoclusters on the Ge（001） Surface Studied by Scanning Tunneling Microscopy, Density Functional Theory Calculations and X-Ray Magnetic Circular Dichroism

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Nano Research 2011年第10期4卷 971-978页

作者： Olaf LUbben Sergey A. Krasnikov Alexei B. Preobrajenski barry E. Murphy Igor v. Shvets Centre for Research on Adaptive Nanostructures and Nanodevices （CRANN） School of Physics Trinity College Dublin Dublin 2 Ireland MAX-lab Lund University Box 118. 22100 Lund Sweden

The growth of Fe nanoclusters oN the Ge（001） surface has been studied using low-temperature scanning tunneling microscopy （STM） and density functional theory （DFT） calculations. STM results indicate that Fe nucleates on the Ge（001） surface, forming well-ordered nanoclusters of uniform size. Depending on the preparation conditions, two types of nanoclusters were observed having either four or sixteen Fe atoms within a nanocluster. The results were confirmed by DFT calculations. Annealing the nanoclusters at 420 K leads to the formation of nanorow structures, due to cluster mobility at such temperature. The Fe nanoclusters and nanorow structures formed on the Ge（001） surface show a superparamagnetic behaviour as measured by X-ray magnetic circular dichroism.

关键词： Ge(001) iron nanoclusters self-assembly scanning tunnelling microscopy X-ray magnetic circular dichroism density functional theory calculations

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闽江下游全新世孢粉记录的植被与环境变化

热带地理 2016年第3期36卷 417-426页

作者：乐远福郑卓 barry v.rolett 黄博津黄康有 Rachid CHEDDADI 广西大学海洋学院//珊瑚礁研究中心南宁530004 中山大学地球科学与地质工程学院广州510275 Department of Anthropology University of HawaiiHonoluluUSA 汕头大学教务处广东汕头515021 Institut des Sciences de l'Evolution de Montpellier Universite de Montpellier34095 MontpellierFrance

为了揭示闽江下游闽侯盆地第四纪沉积环境演变与人类活动历史,对闽江下游闽侯盆地庄边山遗址附近的FZ5钻孔进行了孢粉、硅藻分析。结果表明:闽侯盆地全新世海侵初始发生时间约为9 000 cal.a B.P.,至7 500cal.a B.P.达到最大海侵范围,晚... 详细信息

为了揭示闽江下游闽侯盆地第四纪沉积环境演变与人类活动历史,对闽江下游闽侯盆地庄边山遗址附近的FZ5钻孔进行了孢粉、硅藻分析。结果表明:闽侯盆地全新世海侵初始发生时间约为9 000 cal.a B.P.,至7 500cal.a B.P.达到最大海侵范围,晚全新世海退的发生时间在闽侯盆地大约为1 900 cal.a B.P.。孢粉分析证实了当地早中全新世温暖的亚热带气候以及浓密的常绿阔叶林植被。在7 500―1 900 cal.a B.P.之间无论植被覆盖还是气候环境均比较稳定,高海平面时期的适宜气候以及海湾环境也有利于当地以渔猎经济方式为主的新石器文化(昙石山文化)的兴起和发展。自1 900 cal.a B.P.以后,孢粉组合突变为以先锋植物芒萁属(Dicranopteris)、禾本科(Poaceae)、松属(Pinus)等类型为主,揭示了当地植被受到人类农业刀耕火种的影响而发生显著变化。高含量的禾本科花粉(含一定数量的水稻)仅在剖面上部明显增加这一事实,证实了闽侯和福州一带水稻种植的大面积发展始于距今1 900 a前后。

关键词：闽江下游闽侯盆地孢粉环境演变人类活动昙石山文化

Profile of Autoantibodies and Clinical Symptoms in Guinean Patients with Connective Tissue Diseases

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Open Journal of Immunology 2024年第1期14卷 1-10页

作者： Mariama Sadjo Diallo Doufin Traore Adame Diouf Djiba Kaba Issiaga Diallo Doudou Georges Massar Niang Alimou Camara Oumar Mouctar Diallo Boh Fanta Diane Abdoulaye barry Ouo-Ouo Yaramon Kolie Moustapha Mbow Aly Badra Kamissoko Djibril Sylla Babacar Mbengue Mohamed Cisse Faculté des Sciences et Techniques de la Santé Université Gamal Abdel Nasser de Conakry Conakry Guinée Laboratoire de Biologie Moléculaire Nestor BANGOURA/Helene LABROUSSE H&#244pital de jour Donka CHU Donka Conakry Guinée Centre d’Excellence Africain Pour la Prévention et le Contrô le des Maladies Transmissibles Conakry Guinée Laboratoire d’Immunologie Université Cheikh Anta Diop Dakar Sénégal Service de Dermatologie-vénérologie CHU Donka Conakry Guinée Service de Rhumatologie H&#244pital National Ignace Deen Conakry Guinée Service de Médecine Interne CHU Donka Conakry Guinée

Connective tissue diseases (CTDs) are Autoimmune diseases (AIDs) characterized by the appearance of autoantibodies, which are diagnostic markers. Investigations of these autoantibodies play a major role in the management of several autoimmune diseases. The objective of this study was to describe the profile of anti-ENA antibodies according to the clinical symptoms of mixed CTDs in Conakry teaching Hospital. We performed a cross-sectional study during six months. A total of 20 patients was recruited and we measured antibodies using the ELISA technique. The mean age of our patients was 36.5 years, with a predominance of females. Cutaneous and rheumatological signs were the main clinical manifestations. SLP was the most frequent CTDs;the threshold of ENA antibodies positivity was higher in scleroderma with and SLP. Anti-ENA identification reveals the frequency of anti-SSA (83.33%), anti-U1RNP (66.66%) and anti-histone (50%) antibodies. Antinuclear antibodies (ANA) react with various components of the cell nucleus. Their detection is of major interest in the diagnosis of CTDs. Our results highlight the importance of determining the specificity of these antibodies to guide differential diagnosis.

关键词： Autoantibodies Extractible Nuclear Antigen (ENA) Connective Tissue Diseases ELISA