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Fibrosis assessment using Fibro Meter combined to first generation tests in hepatitis C

World Journal of Hepatology 2017年第6期9卷 310-317页

作者： Maria Chiara Chindamo Jerome Boursier Ronir Raggio Luiz isabelle Fouchard-hubert Vera Lúcia Nunes Pannain Joao Marcello de Araújo Neto Henrique Sérgio Moraes Coelho Renata de Mello Perez Paul Calès Cristiane Alves Villela-Nogueira Departament of Internal Medicine Federal University of Rio de Janeiro Department of Hepatology University Hospital HIFIH Laboratory UPRES 3859SFR 4208Bretagne Loire University Institute of Public Health Studies Federal University of Rio de Janeiro Departament of Pathology Federal University of Rio de Janeiro Gastroenterology Department University of the State of Rio de Janeiro D’Or Institute for Research and Education

AIMTo evaluate the performance of FibroMeterVirus3G combined to the first generation tests aspartate aminotransferase-to-platelet ratio index (APRI) or Forns index to assess significant fibrosis in chronic hepatitis C (CHC). METHODSFirst generation tests APRI or Forns were initially applied in a derivation population from Rio de Janeiro in Brazil considering cut-offs previously reported in the literature to evaluate significant fibrosis. FibroMeterVirus3G was sequentially applied to unclassified cases from APRI or Forns. Accuracy of non-invasive combination of tests, APRI plus FibroMeterVirus3G and Forns plus FibroMeterVirus3G was evaluated in the Brazilian derivation population. APRI plus FibroMeterVirus3G combination was validated in a population of CHC patients from Angers in France. All patients were submitted to liver biopsy staged according to METAVIR score by experienced hepatopathologists. Significant fibrosis was considered as METAVIR F ≥ 2. The fibrosis stage classification was used as the reference for accuracy evaluation of non-invasive combination of tests. Blood samples for the calculation of serum tests were collected on the same day of biopsy procedure or within a maximum 3 mo interval and stored at -70 °C. RESULTSSeven hundred and sixty CHC patients were included (222 in the derivation population and 538 in the validation group). In the derivation population, the FibroMeterVirus3G AUROC was similar to APRI AUROC (0.855 vs 0.815, P = 0.06) but higher than Forns AUROC (0.769, P Virus3G cut-off to discriminate significant fibrosis was 0.61 (80% diagnostic accuracy; 75% in the validation population, P = 0.134). The sequential combination of APRI or Forns with FibroMeterVirus3G in derivation population presented similar performance compared to FibroMeterVirus3G used alone (79% vs 78% vs 80%, respectively, P = 0.791). Unclassified cases of significant fibrosis af

关键词： Chronic hepatitis C Fibrosis Liver biopsy Non-invasive methods FibroMeterVirus3G Combination algorithms

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A cleaner production strategy for acid mine drainage prevention of waste rock:A porphyry copper case

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International Journal of Mining Science and Technology 2024年第8期34卷 1163-1177页

作者： Yesica L.Botero isabelle Demers Luis A.Cisternas ArnoldoÁvila Mostafa Benzaazoua Departamento de Ingeniería Química y Procesos de Minerales Universidad de AntofagastaAntofagasta1240000Chile Research Institute on Mines and Environment Universitédu Québec en Abitibi-TémiscamingueRouyn-NorandaQC J9X5E4Canada Eriez Flotation Group Chile S.A. Santiago1240000Chile Geology and Sustainable Mining Institute University Mohammed Ⅵ PolytechnicLot 660 Hay Moulay RachidBen Guerir 43150Morocco

An in-process technology approach is proposed to identify the source of acid mine drainage(AMD)generation and prevent its formation in a porphyry copper waste rock(WR).Adopting actions before stockpiling the WR enables the establishment of potential contaminants and predicts the more convenient method for AMD prevention.A WR sample was separated into size fractions,and the WR’s net acidgenerating potential was quantified using chemical and mineralogical *** diameter of physical locking of sulfides(DPLS)was determined,and the fractions below the DPLS were desulfurized using ***,the WR fractions and tailing from the flotation test were submitted to acid-base accounting and weathering tests to evaluate their acid-generating *** show that the WR’s main sulfide mineral is pyrite,and the DPLS was defined as 850μm.A sulfide recovery of 91%was achieved using a combination of HydroFloat^(®)and Denver cells for a size fraction lower than *** grinding was *** results show that size fractions greater than DPLS and the desulfurized WR are unlikely to produce *** outcomes show that in-processing technology can be a more proactive approach and an effective tool for avoiding AMD in a porphyry copper WR.

关键词： Waste rock Porphyry copper ore Desulfurization Acid mine drainage HydroFloat^(®) In-process technology Cleaner production

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Accumulation of Heavy Metals in Maga-Pouss Rice Fields (Far-North Region, Cameroon) and Transfer to Rice Grains

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Agricultural Sciences 2024年第3期15卷 311-326页

作者： Diane Madomguia Gilbert Bello Basokdou Kalieu W. Appoline isabelle Patrice Kuitekam Dongo Edouard Nya Serge hubert Zebaze Togouet Department of Hydraulics and Water Management National Advanced School of Engineering University of Maroua Maroua Cameroon Research Center of Global Studies with Multidisciplinary Units (CREGUM) Maroua Cameroon National Laboratory of Analysis of Agricultural Inputs and Products Ministry of Agriculture and Rural Development Messa-Yaoundé Cameroon Department of Animal Physiology and Biology Faculty of Sciences University of Yaoundé I Yaoundé Cameroon

Monitoring of heavy metals contamination of agricultural products and their transfer and bioaccumulation in crops like rice has become a hot topic worldwide over the last two decades. The present study was carried out to determine the accumulation of heavy metals in rice fields and their transfer to rice grains. Soil, irrigation water and rice grains samples were gathered in Maga-Pouss, Far-North, Cameroon. Concentrations of six heavy metals (lead, cadmium, zinc, copper, iron and mercury) were evaluated by Atomic Absorption Spectrophotometer (AAS). Mercury was not detected in this study. Average concentrations of metals were in this order (in mg/kg): Fe (188.60 ± 97.06) > Pb (63.63 ± 7.11) > Cd (2.59 ± 0.29) > Zn (1.10 ± 1.05) > Cu (0.80 ± 0.73) in water and Pb (105.50 ± 31.11) > Fe (105.50 ± 31.11) > Cu (45.93 ± 14.39) > Zn (22.52 ± 6.40) > Cd (3.15 ± 0.49) in soil. Water in Maga-Pouss rice fields appears to be more harmful than the soil, notably for lead, cadmium and copper. In rice grains, heavy metals were found in this order (mg/kg): Fe (188.01 ± 82.62) > Cu (27.20 ± 0.00) > Zn (23.61 ± 12.42) > Pb (19.50 ± 19.91) > Cd (2.02 ± 1.05). The mean bioconcentration factor (BCF) of metals from soil to rice grains was in the following order: Fe (2.60) > Zn (1.05) > Cd (0.64) > Cu (0.59) > Pb (0.18). From water to rice grains, the order is: Cu (37.26) > Zn (22.49) > Cd (6.97) > Pb (2.74) > Fe (1.94). Rice field pH and electrical conductivity favored the uptake of lead, copper and cadmium by rice grains. The findings of this study will be good documentation for risk assessment, and decision-making by environmental managers in this region.

关键词： Heavy Metals Rice Field Bioconcenration Factor Maga-Pouss Accumulation

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Abomasal infusion of branched-chain amino acids or branched-chain keto-acids alter lactation performance and liver triglycerides in fresh cows

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Journal of Animal Science and Biotechnology 2024年第3期15卷 1145-1157页

作者： Kristen Gallagher isabelle Bernstein Cynthia Collings David Main Ghayyoor Ahmad Sarah Naughton Jayasimha Daddam Vengai Mavangira Mike Vandehaar Zheng Zhou Department of Animal Science Michigan State UniversityEast Lansing 48824USA Department of Veterinary Diagnostic and Production Animal Medicine Ames 50011USA

Background Dairy cows are at high risk of fatty liver disease in early lactation,but current preventative measures are not always *** with fatty liver have lower circulating branched-chain amino acid(BCAA)concentra-tions whereas cows with high circulating BCAA levels have low liver triglyceride(TG).Our objective was to determine the impact of BCAA and their corresponding ketoacids(branched-chain ketoacids,BCKA)on production performance and liver TG accumulation in Holstein cows in the first 3 weeks *** Thirty-six multiparous Holstein cows were used in a randomized block design *** were abomasally infused for the first 21 d postpartum with solutions of 1)saline(CON,n=12);2)BCA(67 g valine,50 g leu-cine,and 34 g isoleucine,n=12);and 3)BCK(77 g 2-ketovaline calcium salt,57 g 2-ketoleucine calcium salt,and 39 g 2-ketoisoleucine calcium salt,n=12).All cows received the same *** effects were determined using PROC GLIMMIX in *** No differences were detected for body weight,body condition score,or dry matter intake averaged over the first 21 d *** receiving BCK had significantly lower liver TG concentrations compared to CON(6.60%vs.4.77%,standard error of the mean(SEM)0.49)during the first 3 weeks of *** of BCA increased milk yield(39.5 vs.35.3 kg/d,SEM 1.8),milk fat yield(2.10 vs.1.69 kg/d,SEM 0.08),and lactose yield(2.11 vs.1.67 kg/d,SEM 0.07)compared with *** to CON,cows receiving BCA had lower plasma glucose(55.0 vs.59.2 mg/dL,SEM 0.86)but higherβ-hydroxybutyrate(9.17 vs.6.00 mg/dL,SEM 0.80).Conclusions Overall,BCAA supplementation in this study improved milk production,whereas BCKA supplementa-tion reduced TG accumulation in the liver of fresh cows.

关键词： Branched-chain amino acids Branched-chain ketoacids Fatty liver Fresh cow

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Subclinical proximal tubulopathy in hepatitis B:The roles of nucleot(s)ide analogue treatment and the hepatitis B virus

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World Journal of Hepatology 2020年第12期12卷 1326-1340页

作者： Anais Brayette Marie Essig Paul Carrier Marilyne Debette-Gratien Anais Labrunie Sophie Alain Marianne Maynard Nathalie Ganne-Carrie Eric Nguyen-Khac Pauline Pinet Victor De Ledinghen Christophe Renou Philippe Mathurin Claire Vanlemmens Vincent Di Martino Anne Gervais Juliette Foucher Fouchard-hubert isabelle Julien Vergniol isabelle Hourmand-Ollivier Daniel Cohen Xavier Duval Thierry Poynard Marc Bardou Armand Abergel Manh-Thong Dao Thierry Thevenot Jean-Baptiste Hiriart Valerie Canva Guillaume Lassailly Christine Aurières Nathalie Boyer Dominique Thabut Pierre-Henri Bernard Matthieu Schnee Dominique Larrey Bertrand Hanslik Severine Hommel Jeremie Jacques Veronique Loustaud-Ratti U1248 INSERM Department of Hepatology and GastroenterologyUniv.LimogesCHU LimogesLimoges F-87000France U1248 INSERM Department of Nephrology and TransplantationCHU LimogesLimoges F-87000France Department of Center of Epidemiology Biostatistics and Research MethodologyCHU LimogesLimoges F-87000France U1092 INSERM Department of VirologyCHU LimogesLimoges F-87000France Department of Hepatology Croix-Rousse University Hospital of LyonLyon 69004France Department of Hepatology Jean Verdier University Hospital of BondyBondy 93140France Department of Hepato-Gastroenterology Amiens University HospitalAmiens 80054France Department of Infectious Diseases CHU LimogesLimoges F-87000France Department of Hepatology Haut Leveque HospitalBordeaux University HospitalPessac 33604France Department of Gastroenterology Hyeres HospitalHyeres 83407France Department of Hepato-Gastroenterology Claude Huriez University HospitalLille 59037France Department of Hepatology Jean Minjoz University HospitalBesançon 25030France Department of Infectious Diseases Bichat University HospitalParis 75018France Department of Hepatology University Hospital of AngersAngers 49933France Department of Hepato-Gastroenterology and Nutrition University Hospital of CaenCaen 14033France Department of General Medecine University Hospital of CaenCaen 14000France Department of Hepatology La Pitié-Salpêtrière University HospitalParis 75651France Department of Hepatology and Gastroenterology Dijon University HospitalDijon 21079France Department of Hepatology and Gastroenterology Estaing University HospitalClermont Ferrand 63003France Department of Hepatology Beaujon University HospitalClichy 92110France Department of Hepatology Saint-AndréUniversity HospitalBordeaux 33000France Department of Hepatology and Gastroenterology La Roche-Sur-Yon Hospital CenterLa Roche-Sur-Yon 85000France Department of Hepatology and Gastroenterology University Hospital of MontpellierMontpellier 34295France Department of Addictology Hospita

BACKGROUND The recommended monitoring tools for evaluating nucleot(s)ide analogue renal toxicity,such as estimated glomerular filtration rate(eGFR)and phosphatemia,are late markers of proximal *** early markers are available,but no consensus exists on their *** To determine the 24 mo prevalence of subclinical proximal tubulopathy(SPT),as defined with early biomarkers,in treated vs untreated hepatitis B virus(HBV)-monoinfected *** A prospective,non-randomized,multicenter study of HBV-monoinfected patients with a low number of renal comorbidities was *** patients were separated into three groups:Naïve,starting entecavir(ETV)treatment,or starting tenofovir disoproxil(TDF)*** on the early markers of SPT,the eGFR and phosphatemia,were collected *** was defined as a maximal tubular reabsorption of phosphate/eGFR below 0.8 mmoL/L and/or uric acid fractional excretion above 10%.The prevalence and cumulative incidence of SPT at month 24(M24)were *** data were analyzed using analyses of variance or Kruskal-Wallis tests,whereas chi-squared or Fisher’s exact tests were used to analyze qualitative *** analyses were used to adjust for any potential confounding *** Of the 196 patients analyzed,138(84 naïve,28 starting ETV,and 26 starting TDF)had no SPT at *** M24,the prevalence of SPT was not statistically different between naïve and either treated group(21.1%vs 30.7%,P<0.42 and 50.0%vs 30.7%,P=0.32 for ETV and TDF,respectively);no patient had an eGFR lower than 50 mL/min/1.73 m²or phosphatemia less than 0.48 mmoL/*** the multivariate analysis,no explanatory variables were identified after *** cumulative incidence of SPT over 24 mo(25.5%,13.3%,and 52.9%in the naïve,ETV,and TDF groups,respectively)tended to be higher in the TDF group vs the naïve group(hazard ratio:2.283,P=0.05).SPT-free survival at M24 was 57.6%,68.8%,and 23.5%for the naïve,ETV,and TD

关键词： Hepatitis B virus Proximal tubulopathy Biomarkers Renal insufficiency Nucleoside analogues

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Clinical associations of corneal neuromas with ocular surface diseases

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Neural Regeneration Research 2024年第1期19卷 140-147页

作者： Charmaine Jan Li Toh Chang Liu isabelle Xin Yu Lee Molly Tzu Yu Lin Louis Tong Yu-Chi Liu Lee Kong Chian School of Medicine Nanyang Technological UniversitySingapore Singapore Eye Research Institute Singapore Department of Cornea and External Eye Disease Singapore National Eye CentreSingapore Ophthalmology and Visual Sciences Academic Clinical Program Duke-NUS Medical SchoolSingapore

Corneal neuromas,also termed microneuromas,refer to microscopic,irregula rly-shaped enlargements of terminal subbasal nerve endings at sites of nerve damage or *** formation of corneal neuromas results from damage to corneal nerves,such as following corneal pathology or corneal or intraocular surge ***,denervated areas of sensory nerve fibers become invaded by sprouts of intact sensory nerve fibers,and later injured axons regenerate and new sprouts called neuromas *** recent years,analysis of corneal nerve abnormalities including corneal neuromas which can be identified using in vivo confocal microscopy,a non-invasive imaging technique with microscopic resolution,has been used to evaluate corneal neuropathy and ocular surface *** neuromas have been shown to be associated with clinical symptoms of discomfort and dryness of eyes,and are a promising surrogate biomarker for ocular surface diseases,such as neuropathic corneal pain,dry eye disease,diabetic corneal neuropathy,neurotrophic keratopathy,Sjogren's syndrome,bullous keratopathy,post-refra ctive surgery,and *** this review,we have summarized the current literature on the association between these ocular surface diseases and the presentation of corneal microneuromas,as well as elaborated on their pathogenesis,visualization via in vivo confocal microscopy,and utility in monitoring treatment *** current quantitative analysis on neuromas mainly relies on manual annotation and quantification,which is user-dependent and labor-intensive,future direction includes the development of artificial intelligence software to identify and quantify these potential imaging biomarkers in a more automated and sensitive manner,allowing it to be applied in clinical settings more *** imaging and molecular biomarkers may also help elucidate the associations between corneal neuromas and ocular surface diseases.

关键词： cornea corneal diseases corneal nerve corneal neuropathy in vivo confocal microscopy microneuroma neuroma ocular surface diseases

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Parallelization of frequency domain quantum gates:manipulation and distribution of frequency-entangled photon pairs generated by a 21 GHz silicon microresonator

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Advanced Photonics 2024年第3期6卷 60-69页

作者： Antoine Henry Dario A.Fioretto Lorenzo M.Procopio Stéphane Monfray Frédéric Boeuf Laurent Vivien Eric Cassan Carlos Alonzo-Ramos Kamel Bencheikh isabelle Zaquine Nadia Belabas Institut Polytechnique de Paris LTCITélécom ParisPalaiseauFrance Université Paris-Saclay CNRSCentre for Nanosciences and NanotechnologyUMR 9001PalaiseauFrance Weizmann Institute of Science RehovotIsrael STMicroelectronics SAS CrollesFrance

Harnessing the frequency dimension in integrated photonics offers key advantages in terms of scalability,noise resilience,parallelization,and compatibility with telecom multiplexing *** ring resonators have been used to generate frequency-entangled states through spontaneous four-wave ***,state-of-the-art integrated resonators are limited by trade-offs among size,spectral separation,and efficient photon pair *** have developed silicon ring resonators with a footprint below 0.05 mm^(2)providing more than 70 frequency channels separated by 21 *** exploit the narrow frequency separation to parallelize and independently control 34 single qubit-gates with a single set of three off-the-shelf electro-optic *** fully characterize 17 frequency-bin maximally entangled qubit pairs by performing quantum state *** demonstrate for the first time,we believe,a fully connected five-user quantum network in the frequency *** results are a step towards a generation of quantum circuits implemented with scalable silicon photonics technology,for applications in quantum computing and secure communications.

关键词： integrated photonics frequency domain quantum gates quantum networks

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FibroMeters:诊断肝纤维化的血液学检测指标组合(英文)

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传染病信息 2013年第3期26卷 134-140页

作者： Paul Calès Jérme Boursier Frédéric Oberti isabelle hubert Yves Gallois Marie Christine Rousselet Valérie Moal Laurent Macchi Alain Chevailler Julien Chaigneau Gilles Hunault HIFIH Laboratory LUNAM University Hepato-gastroenterology department University Hospital Biochemistry Laboratory Hepato-gastroenterology department University Hospital Pathology department University Hospital Hematology Laboratory University Hospital Immunology Laboratory University Hospital

FibroMeters是具有多项特异性的诊断肝纤维化的血液学检测指标组合,其3个主要诊断目标为显著肝纤维化、肝硬化以及肝纤维化的定量,并由专业系统针对不同病因进行调整从而保证获得准确的结果。因此,主要存在 6 种不同的 FibroMeters:即... 详细信息

FibroMeters是具有多项特异性的诊断肝纤维化的血液学检测指标组合,其3个主要诊断目标为显著肝纤维化、肝硬化以及肝纤维化的定量,并由专业系统针对不同病因进行调整从而保证获得准确的结果。因此,主要存在 6 种不同的 FibroMeters:即针对肝纤维化的3种主要病因慢性病毒性肝炎、酒精性肝病和非酒精性脂肪性肝病的肝纤维化分期和肝纤维化定量。以肝组织病理学方法诊断肝纤维化程度进行对照,FibroMeters 表现出非常高的诊断准确率,是惟一能100%正确区分丙型肝炎患者不伴有肝纤维化或伴有肝硬化的检测方法。在适用性方面,FibroMeters 对于显著肝纤维化的 90%预测值高于其他血清学检测方法。使用包括 7 类内容在内的详细的肝纤维化分期方法,87%的丙型肝炎患者可以获得准确的肝纤维化分期。在实际工作条件下,FibroMeters 重复性高于肝组织病理结果,也高于超声弹性检测。因诊断性能表现非常稳定,FibroMeters 在不同的中心都是稳健的检测方法。目前可选择的检测有:针对肝硬化诊断的 CirrhoMeter,在一项丙型肝炎肝硬化患者的队列中其诊断准确率为 93%(受试者工作特征曲线下面积:0.92),阳性预测值为 100%;针对肝纤维化定量检测的QuantiMeter,是惟一能通过无创方法直接量化肝纤维化程度的手段,对于随访肝硬化及其临床相关事件可能特别有用。除HCV 感染外,FibroMeters对HBV或HIV同时感染患者诊断准确率高,尤其是对酒精性肝病或非酒精性脂肪肝患者,FibroMeters有较高的诊断准确率(对于显著纤维化,受试者工作特征曲线下面积分别为0.96和0.94)。

关键词：肝纤维化活组织检查血清学弹性显像技术

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Schisming as an Interactional Resource for Learning at the Frontiers of Work and Vocational Training-A Secondary Publication

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Journal of Contemporary Educational Research 2024年第4期8卷 346-364页

作者： Laurent Filliettaz isabelle Durand Marianne Zogmal Vasiliki Markaki-Lothe University of Geneva Switzerland Grenoble Alpes University France

This paper examines the sorts of interactional competencies and institutional demands required from students as they engage in complex forms of participation combining work and training *** focuses on a series of empirical cases,recorded through video data and analyzed from a conversation analytic perspective,in which mentors make the decision to intervene during work sessions moderated by *** interventions do not interrupt the student’s activity and lead to the emergence of two distinct but not impermeable interactional *** complex participation framework,known as“schisming,”contributes to overcoming practical issues within multiparty *** study shows how schisming constitutes a particular sequential phenomenon where participants reorganize the interaction and co-construct a social and cognitive interactional space,thus enabling a shared understanding of the specific training *** data from the practical training of medical radiographers are used to illustrate how schisming may contribute to learning in the conditions of guided practice.

关键词： Language and interaction Student-teacher relations and interactions Analysis of professional practice Professional education

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法国传教士文献所见康熙年间带往中国的器具

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故宫博物院院刊 2024年第4期 18-26,142页

作者： [法]蓝莉法国社会科学高等研究学院近现代中国研究中心

法国传教士档案中,有清康熙时期(1662-1722)关于安菲特里特号(Amphitrite)航行之前被带到或发送到中国物品的数据。安菲特利特号是第一艘到达中国的法国船,分别于1698年和1701年停靠在广州。为了尽可能准确地识别所提供的物品,本文研究... 详细信息

法国传教士档案中,有清康熙时期(1662-1722)关于安菲特里特号(Amphitrite)航行之前被带到或发送到中国物品的数据。安菲特利特号是第一艘到达中国的法国船,分别于1698年和1701年停靠在广州。为了尽可能准确地识别所提供的物品,本文研究了耶稣会神父洪若(1643-1710)从中国寄给法国的一系列信件,信件列出了可能有利于建立传教士的艺术和科学物品的清单,并注意到发明者、供货商和制造者的签名,说明中法间这种科学和艺术创新的氛围是互动的。

关键词：传教士康熙时代礼品巴黎皇家科学院

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